JP7720131B2 - Chemical vaporizer - Google Patents

Description

Patent Law Article 30, Paragraph 2 applicable Publication 1 Exhibition date: January 9, 2019 - January 11, 2019 Exhibition name: Kobayashi Pharmaceutical Group 56th 2019 Spring New Product Business Meeting Exhibition location: Tokyo Transportation Center, 12th floor "Diamond Hall" (2-10-1 Yurakucho, Chiyoda-ku, Tokyo)

Patent Law Article 30, Paragraph 2 applicable. Publication 2. Exhibition date: January 17, 2019 - January 18, 2019. Exhibition name: Kobayashi Pharmaceutical Group 56th 2019 Spring New Product Business Meeting. Exhibition location: My Dome Osaka, 2nd floor exhibition hall (2-5 Honmachibashi, Chuo-ku, Osaka City, Osaka Prefecture)

Patent Law Article 30, Paragraph 2 applicable. Publication 3. Exhibition date: January 24, 2019. Exhibition name: Kobayashi Pharmaceutical Group 56th 2019 Spring New Product Business Meeting. Exhibition location: Fukuoka Fashion Building, 8th floor, Hall A (2-10-19 Hakataekimae, Hakata-ku, Fukuoka City)

The present invention relates to a chemical liquid volatilizer.

Conventionally, chemical liquid volatilizers have been known in which a rod-shaped volatilizer is inserted into a container containing the chemical liquid so that it protrudes from the container (see, for example, Patent Documents 1 and 2). In this type of chemical liquid volatilizer, the chemical liquid inside the container is sucked up by the volatilizer and volatilized into the external space, thereby imparting the effects of the chemical liquid, such as its fragrance, to the external space. In many cases, the volatilizer is set at an appropriate angle within the container to improve the interior design.

JP 2012-115364 A JP 2016-124603 A

However, with chemical liquid volatilizers like those described above, some of the chemical liquid absorbed by the volatilizer may leak onto the top surface of the container and adhere to it. Furthermore, if a large amount of chemical liquid leaks from the volatilizer due to environmental conditions such as the ambient temperature and humidity, the chemical liquid may fall from the outer edge of the top surface and contaminate the sides of the container and the surrounding environment.

The present invention aims to prevent leaked chemical liquid from contaminating the outer surface of the container and the surrounding environment in a chemical liquid volatilizer that uses a rod-shaped volatilizer to suck up and volatilize the chemical liquid inside the container.

A chemical liquid volatilizer according to a first aspect of the present invention comprises a container having a top surface with an opening formed therein for storing chemical liquid therein, and a rod-shaped volatilizer inserted into the container through the opening so that a portion of the rod-shaped volatilizer is exposed to the outside of the container in order to suck up the chemical liquid from the container. The top surface faces the opening, extends circumferentially around the opening, and has corners that can come into contact with the volatilizer inserted into the container. The corners are rounded when viewed in vertical cross section.

A chemical liquid volatilizer according to a second aspect of the present invention is the chemical liquid volatilizer according to the first aspect, wherein the top surface includes a first surface that surrounds the corner portion from the outside. The upper surface of the first surface is inclined upward radially outward.

A chemical liquid volatilizer according to a third aspect of the present invention is the chemical liquid volatilizer according to the second aspect, wherein the upper surface of the first surface portion extends linearly in a vertical cross-sectional view.

A chemical liquid volatilizer according to a fourth aspect of the present invention is a chemical liquid volatilizer according to the first or second aspect, wherein the top surface further includes a second surface that surrounds the first surface from the outside.

A chemical liquid volatilizer according to a fifth aspect of the present invention is the chemical liquid volatilizer according to the fourth aspect, wherein the upper surface of the second surface portion extends substantially horizontally or is inclined upward radially outward.

A chemical liquid volatilizer according to a sixth aspect of the present invention is the chemical liquid volatilizer according to the fifth aspect, wherein the upper surface of the second surface portion forms an angle of 40° or less with respect to the horizontal.

A chemical liquid volatilizer according to a seventh aspect of the present invention is the chemical liquid volatilizer according to the first aspect, wherein the top surface includes a first surface that surrounds the corner portion from the outside. The upper surface of the first surface extends substantially horizontally.

This invention prevents leaked chemical liquid from contaminating the outer surface of the container and the surrounding environment in a chemical liquid volatilizer that uses a rod-shaped volatilizer to suck up and volatilize the chemical liquid inside the container.

1 is a perspective view of a chemical solution volatilizer according to one embodiment of the present invention; FIG. 2 is a cross-sectional view of a vaporizer according to one embodiment of the present invention. 1 is a perspective view of a container according to an embodiment of the present invention; FIG. 1 is a longitudinal cross-sectional view of a container according to an embodiment of the present invention. FIG. 2 is a plan view of a cover member according to an embodiment of the present invention. FIG. 4 is a bottom view of the cover member according to the embodiment of the present invention. A partial vertical cross-sectional view showing the contact point between the volatilizer and the corner portion in a comparative example. A partial vertical cross-sectional view showing the contact point between the volatilizer and the corner portion in one embodiment of the present invention. FIG. 10 is a partial vertical cross-sectional view of a cover member according to a modified example. FIG. 10 is a partial vertical cross-sectional view of a cover member according to another modified example. FIG. 10 is a partial vertical cross-sectional view of a cover member according to yet another modified example. FIG. 10 is a partial vertical cross-sectional view of a cover member according to yet another modified example. FIG. 10 is a partial vertical cross-sectional view of a cover member according to yet another modified example. FIG. 10 is a partial vertical cross-sectional view of a connection portion between a cover member and a container body according to a modified example. FIG. 10 is a partial vertical cross-sectional view of a connection portion between a cover member and a container body according to another modified example. FIG. 10 is a partial vertical cross-sectional view of a connection portion between a cover member and a container body according to yet another modified example. FIG. 10 is a partial vertical cross-sectional view of a connection portion between a cover member and a container body according to yet another modified example.

The following describes a chemical liquid volatilizer 1 according to one embodiment of the present invention, with reference to the drawings.

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

The chemical solution used here is not particularly limited in type, but is typically an air freshener, deodorizer, or insect repellent, or a mixture thereof. Depending on the intended use, it may contain additives such as fragrances, deodorizing components, insect repellent components, and colorants. The solvent contained in the chemical solution is selected appropriately depending on 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 that the solvent contain at least a lipophilic solvent to enhance the fragrance intensity. Examples of hydrophilic solvents that can be used include water or ethanol, or mixtures of these. Examples of lipophilic solvents that can be used include glycol ethers or isoparaffin-based solvents, or mixtures of these. Furthermore, the chemical solution may contain a solubilizer to solubilize functional ingredients such as fragrances, deodorizing components, insect repellent components, and colorants.

The rod-shaped volatilizer 3 is inserted into the container 2 in such a way that a portion of it protrudes from the container 2. In other words, the volatilizer 3 has a length sufficient for the height of the container 2, and is inserted into the container 2 in such a way that the lower end 3a is positioned inside the container 2 and the upper end 3b is exposed outside the container 2. At this time, to improve the interior appearance of the chemical solution volatilizer 1, the volatilizer 3 is set in the container 2 in a tilted state relative to the vertical direction. Furthermore, as shown in Figure 1, when multiple volatilizers 3 are used at the same time, these volatilizers 3 are set in the container 2 so that they face in various directions and extend radially.

As described below, the volatilizer 3 has a structure that allows it to suck up the medicinal liquid against gravity through capillary action. As a result, the medicinal liquid in the container 2 can rise along the volatilizer 3 from the bottom end 3a to the top end 3b, and volatilize (naturally evaporate) from the outer surface of the volatilizer 3 into the external space. This allows the medicinal liquid to diffuse into the space surrounding the medicinal liquid volatilizer 1.

The shape and material of the volatilizer 3 are not particularly limited, as long as they are capable of absorbing the chemical solution and volatilizing it to the outside. The volatilizer 3 typically has a long, thin, approximately cylindrical shape with internal micropores. It can be made of natural materials such as rattan, or synthetic resins such as polyethylene and polyacetal. The volatilizer 3 of this embodiment has the cross-sectional shape shown in Figure 2. In this example, the volatilizer 3 is made of polyethylene terephthalate and polyurethane and has numerous irregular micropores 31 internally. Furthermore, numerous grooves 32 are formed on the outer surface of the volatilizer 3. These grooves 32 extend in a strip-like pattern from the lower end 3a to the upper end 3b along the axial direction of the volatilizer 3. In other words, the cross-section of the volatilizer 3 does not have a smooth outline along the circumferential direction, but rather has an uneven outline. Furthermore, these grooves 32 are arranged at approximately equal intervals along the circumferential direction of the volatilizer 3. Due to capillary action, the chemical solution is absorbed not only through the micropores 31 but also along the grooves 32. As a result, a large amount of chemical liquid easily adheres to the outer surface of the volatilizer 3 in this embodiment.

<2. Container details>
Fig. 3 shows a perspective view of the container 2, and Fig. 4 shows a longitudinal cross-sectional view of the container 2. As shown in these figures, the container 2 according to this 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 10. In this embodiment, the bottom surface 10 has a shape in which its peripheral edge 12 is recessed more than its central edge 11. Therefore, when the amount of chemical solution remaining in the container 2 becomes small, it accumulates in the recess in the peripheral edge 12 of the bottom surface 10. Meanwhile, the lower end 3a of the rod-shaped volatilizer 3 is often positioned on the peripheral edge 12 of the bottom surface 10. Therefore, the volatilizer 3 and the chemical solution are easily brought into contact with each other, so that the chemical solution can be used up to the last drop.

The container body 4 has a cylindrical body 21 that rises from the bottom 10 along its outer periphery, a shoulder 22 that connects to the upper end of the body 21, and a neck 23 that connects to the upper end of the shoulder 22. Although not limited to this, in this embodiment, the bottom 10, body 21, shoulder 22, and neck 23 all have approximately circular shapes in a plan view, and their centers are aligned. The neck 23 is a cylindrical portion that forms a mouth that communicates with the opening S1 at the top of the container 2. Hereinafter, the neck 23 will be referred to as the mouth, and may also be given the reference numeral 23.

The mouth 23 has a smaller diameter than the body 21. This means that when the chemical solution vaporizer 1 is tipped over, the shoulder 22 acts as a wall, making it less likely for the chemical solution to spill through the opening S1. In particular, in this embodiment, the mouth 23 is positioned coaxially with the body 21, so the shoulder 22 acts as a wall regardless of the direction in which the chemical solution vaporizer 1 is tipped, preventing the chemical solution from spilling. Furthermore, because the cross-sectional area of the opening S1 is smaller than the cross-sectional area of the body 21, the amount of chemical solution that naturally evaporates from within the container 2 through the opening S1 can be reduced relative to the amount of chemical solution contained within the container 2.

In this embodiment, the shoulder portion 22 has a step, comprising a lower step portion 221 and an upper step portion 222 located above the lower step portion 221. In a plan view, the lower step portion 221 is disposed so as to surround the upper step portion 222 from the outside. The upper end portion 231 of the mouth portion 23 is formed in a flange shape. Hereinafter, the upper end portion 231 will be referred to as the flange portion, and may also be given the same reference numeral 231.

The material of the container body 4 is not particularly limited; in this embodiment, it is made of glass, but it can also be made of other materials, such as synthetic resin. From the perspective of improving the interior design and making it possible to visually check the remaining amount of chemical solution from the outside, it is preferable that the container 2 be made transparent (including translucent).

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

The top surface 50 includes a first surface 51 that surrounds and defines the opening S1 from the outside, and a second surface 52 that surrounds the first surface 51 from the outside. The upper surface of the first surface 51 forms a slope that slopes upward radially outward. The upper surface of the first surface 51 is linear in a vertical cross-sectional view. The upper surface of the second surface 52 extends substantially horizontally. In the description of this embodiment, the terms "radial direction" and "circumferential direction" are defined relative to an axis that passes through the center of the opening S1 and extends vertically, unless otherwise specified. In this embodiment, the opening S1 is approximately circular, and the outer shapes of the first surface 51 and the second surface 52 are also approximately circular in a plan view. Furthermore, in a plan view, the centers of the outer shapes of the opening S1, the first surface 51, and the second surface 52 all overlap the central axis of the mouth 23.

The cover member 5 also has a cylindrical wall portion 53 extending downward from the underside of the first surface portion 51. The wall portion 53 extends circumferentially downward from the inner peripheral edge portion 501 of the first surface portion 51 that defines the opening S1. In this embodiment, the outer shape of the wall portion 53 is also approximately circular in a plan view, and its 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 contacting the inner surface of the mouth portion 23 of the container body 4 or while being spaced slightly apart from this inner surface. The space inside the wall portion 53 is connected to the opening S1, and the volatilizer 3 is inserted into this space.

The inner peripheral edge 501 of the first surface 51 is located radially inward from the upper end 231 of the mouth 23. The wall 53 includes a first portion 531 extending downward from the inner peripheral edge 501 along the inner surface of the mouth 23, and a second portion 532 extending further downward from the lower end of the first portion 531. As shown in FIG. 4 , the first portion 531 is in contact with or nearly in contact with the inner surface of the container body 4 (the inner surface of the mouth 23), while the second portion 532 is spaced a certain distance from the inner surface of the container body 4. In this embodiment, the first portion 531 and the second portion 532 both extend in a substantially straight line in the vertical direction. However, because the inner surface of the container body 4 moves radially outward as it extends downward from the wall 53 at the shoulder 22, the gap S2 between the second portion 532 and the inner surface of the container body 4 becomes larger than the gap between the first portion 531 and the inner surface of the container body 4. Furthermore, in this embodiment, the outer surface of the second portion 532 extends radially inward as it extends downward, so the gap S2 is even larger than the gap between the first portion 531 and the inner surface of the container body 4. The gap S2 gradually increases as it extends downward.

The cover member 5 also has multiple claws 54 extending downward from the underside of the top surface 50. These claws 54 are spaced radially outward from the wall 53 on the underside of the top surface 50 and arranged at predetermined intervals along the circumferential direction. While not limited to this, it is preferable that the claws 54 be arranged at equal intervals along the circumferential direction. Each claw 54 has a thin plate-shaped protruding piece 541 extending downward from the underside of the top surface 50 and a hooking portion 542 that is continuous with the lower end of the protruding piece 541 and bulges radially inward beyond the protruding piece 541. When attaching the cover member 5 to the container body 4, the mouth 23 of the container body 4 is inserted between the wall 53 and the claws 54. At this time, the hooking portion 542 climbs over the flange 231 of the mouth 23 due to elastic deformation of the protruding piece 541. Thereafter, the hook portion 542 and the flange portion 231 engage with each other, maintaining the connection between the cover member 5 and the container body 4 unless a strong external force is applied, preventing the two members 5 and 4 from unintentionally coming apart. Meanwhile, 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.

The cover member 5 also has a cylindrical outer wall portion 55 that extends downward from the periphery of the top surface 50. The lower end of the outer wall portion 55 contacts the upper surface of the lower step portion 221 of the shoulder portion 22 of the container body 4 when the cover member 5 is attached to the container body 4. In this embodiment, the top surface 50 and the body portion 21 of the cover member 5 have roughly the same outer shape in a plan view, and the container 2 has an overall cylindrical shape.

The top surface 50 forms a corner 57 at the inner peripheral edge 501 with which the volatilizer 3 inserted into the container 2 can come into contact. The corner 57 faces the opening S1 and extends circumferentially. The corner 57 is chamfered and rounded when viewed in vertical cross section of the top surface 50. In this embodiment, the volatilizer 3 can come into contact with the corner 57 when its lower end 3a is inserted into the recess in the peripheral edge 12 of the bottom surface 10 of the container body 4; in other words, when the volatilizer 3 is at its maximum inclination relative to the vertical direction within the container 2 (hereinafter referred to as the maximum inclination state).

However, some of the chemical liquid absorbed by the volatilizer 3, particularly along its outer surface, leaks onto and adheres to the top surface 50, primarily the first surface 51. If the chemical liquid leaked onto the first surface 51 remains on the first surface 51 and stains the top surface of the top surface 50, the appearance is not necessarily aesthetically pleasing. Furthermore, if the container 2 is overturned, the chemical liquid remaining on the first surface 51 may contaminate the surrounding environment. Furthermore, if a large amount of chemical liquid leaks from the volatilizer 3 due to environmental conditions such as ambient temperature and humidity, the chemical liquid may reach the second surface 52 from the first surface 51 and fall from the outer edge of the second surface 52, potentially contaminating the side of the container 2 and the surrounding environment. In contrast, the corners 57 facilitate the rapid return of chemical liquid leaked onto the first surface 51 back into the container body 4. This prevents the chemical solution from contaminating the outer surface of the container 2 (including the upper surface of the top surface 50 and the side surfaces of the container 2) and the surrounding environment.

Specifically, the liquid medicine absorbed by the volatilizer 3 typically first collects on the top surface 50 near the corner 57 with which the volatilizer 3 comes into contact. If, as shown in FIG. 7A, corner 57' corresponding to corner 57 is not rounded in vertical cross section but forms a right angle, the space S3' defined by the volatilizer 3 and the area near corner 57' will be wider. On the other hand, if corner 57 is rounded in vertical cross section, as in this embodiment, the space S3 defined by the volatilizer 3 and the area near corner 57 will be narrower, as shown in FIG. 7B. Such a narrowed space S3 tends to accumulate the liquid medicine at a high density, resulting in the formation of larger droplets that are heavier and more likely to fall downward into the container body 4.

From the perspective of efficiently achieving the above-mentioned effects, the radius of curvature in the vertical cross section of the corner portion 57 at the point of contact between the volatilizer 3 in the maximum inclined state and the corner portion 57 is preferably 0.5 mm to 3.5 mm, more preferably 1 mm to 3 mm, and even more preferably 1.5 mm to 2.5 mm.

In addition, in this embodiment, because the first surface 51 is inclined downward radially inward, the liquid medicine collected on the first surface 51 tends to move along the first surface 51 toward the opening S1 due to gravity. As a result, the liquid medicine can easily fall along the wall 53 and return to the container body 4.

The top surface of the first surface 51 may be configured to form an angle of 40° or less with respect to the horizontal. If the top surface of the first surface 51 approaches horizontal, it becomes difficult for the medicinal liquid to return into the container body 4 through the opening S1. However, in this embodiment, the corner portion 57 can encourage the medicinal liquid to return, so it is possible to make the top surface of the first surface 51 closer to horizontal.

The wide gap S2 between the wall portion 53 and the inner surface of the container body 4 prevents the chemical liquid returning from the top surface 50 through the opening S1 into the container body 4 from leaking out of the container 2 again. In other words, if the wall portion 53 were not present, or if the second portion 532 of the wall portion 53 were omitted, the chemical liquid returning through the opening S1 into the container body 4 would likely leak out along the route indicated by arrow A1 in FIG. 4 . In this case, the chemical liquid would rise through the narrow gap between the first portion 531 and the inner surface of the container body 4 due to capillary action, and then easily leak out along the mouth 23 and shoulder 22 of the container body 4. This problem can be exacerbated particularly when the gap between the upper end 231 of the mouth 23 and the top surface 50 is narrow, or when the gap between the outer surface of the mouth 23 and the claw portion 54 is narrow. However, in this embodiment, the presence of the gap S2 prevents the chemical solution from reaching narrow gaps such as those described here, reducing the risk of soiling the side of the container 2 and its surrounding environment.

3. Modified Examples
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, the following modifications are possible. Furthermore, the gist of the following modifications 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. However, the present invention can also be applied to a case where the container does not have a cover member and has only the container body. In this case, the same effect can be achieved by applying to the container body a configuration similar to that of the top surface 50 (including the corner portions 57) of the cover member 5 described above.

<3-2>
The configuration of the upper surface of the top surface 50 described above is illustrative and can be configured in various ways. For example, the first surface 51 forming the inclined surface can be omitted (see FIG. 8A), the upper surface of the first surface 51 can extend substantially horizontally (see FIG. 8B), or the inclined surface of the first surface 51 can be curved in a vertical cross-sectional view (see FIG. 8C). In the examples of FIGS. 8B and 8C, rounded corners 57 are formed in two locations that can contact the volatilizer 3 inserted into the container 2. The upper surface of the second surface 52 does not have to extend substantially horizontally, and may be inclined upward, particularly radially outward (see FIG. 8D). However, from the perspective of ensuring interior design, it is preferable that the upper surface of the second surface 52 extend substantially horizontally. From this perspective, the upper surface of the second surface portion 52 preferably forms an angle of 40° or less with respect to the horizontal direction, more preferably an angle of 35° or less, even more preferably an angle of 30° or less, even more preferably an angle of 25° or less, even more preferably an angle of 20° or less, even more preferably an angle of 15° or less, and even more preferably an angle of 10° or less. Also, the second surface portion 52 can be omitted (see FIG. 8E).

<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 positioned radially inward from the upper end portion 231 of the mouth portion 23, leakage of the medicinal solution to the outside through the gap between the container body 4 and the cover member 5 can be prevented.

The length of the wall portion 53 can also be adjusted in various ways; for example, the second portion 532 can be omitted (see Figure 9B). In this case, in order for the medicinal liquid to leak out through the gap between the container body 4 and the cover member 5, the medicinal liquid must rise against gravity between the outer surface of the first portion 531 and the inner surface of the mouth portion 23. Therefore, although this is inferior to the above embodiment, it is still possible to prevent the medicinal liquid from leaking out.

Furthermore, if the mouth 23 of the container body 4 is not cylindrical but is configured with a flat top surface, a wall 53 may be inserted into the mouth 23 (see Figure 9C). Furthermore, in this case, the wall 53 may be inclined downward in the radially inward direction (see Figure 9D). Even in such a case, if the lower end of the wall 53 is spaced apart from the inner surface of the container body 4, it is possible to prevent the medicinal solution from leaking to the outside through the gap between the container body 4 and the cover member 5. In the example of Figures 9C and D, the lower end of the wall 53 extends below the underside of the mouth 23, which is the top surface.

REFERENCE SIGNS LIST 1 Chemical solution volatilizer 2 Container 3 Volatilizer 4 Container body 5 Cover member 50 Top surface portion 51 First surface portion 52 Second surface portion 57 Corner portion S1 Opening

Claims (5)

a container having a top surface portion in which an opening is formed and configured to contain a medicinal solution therein;
a rod-shaped volatilizer inserted into the container through the opening so that a portion of the rod-shaped volatilizer is exposed to the outside of the container in order to suck up the chemical solution from the container;
the top surface portion faces the opening, extends along the circumferential direction of the opening, and has a corner portion that can come into contact with the volatilizer inserted into the container;
The corner portion is rounded in a vertical cross-sectional view,
the top surface portion further includes a first surface portion that surrounds the corner portion from the outside, and a second surface portion that surrounds the first surface portion from the outside and forms a peripheral portion of the top surface portion,
The upper surface of the first surface portion extends linearly in a vertical cross-sectional view,
an upper surface of the first surface portion smoothly continues to an upper surface of the corner portion, and an outer peripheral edge of the upper surface of the second surface portion continues to an inner peripheral edge of the upper surface of the second surface portion;
Chemical liquid vaporizer. The container includes a container body having a mouth portion and a cover member attached to the container body so as to cover the mouth portion from above,
the cover member constitutes the top surface portion,
The cover member is formed such that the horizontal length of the second surface portion is longer than the horizontal length of the first surface portion in a vertical cross-sectional view.
The chemical solution volatilizer according to claim 1. The upper surface of the first surface portion is inclined upward toward the outside in the radial direction.
The chemical solution volatilizer according to claim 1 or 2. The upper surface of the second surface portion extends horizontally or is inclined upward radially outward.
The chemical solution volatilizer according to any one of claims 1 to 3. The upper surface of the second surface portion forms an angle of 0° or more and 40° or less with respect to the horizontal direction.
The chemical solution volatilizer according to any one of claims 1 to 4.