JP7293483B2 - volatilization device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a volatilization device including a container for storing a chemical liquid such as an aromatic agent and a liquid absorbing member housed in the container .

BACKGROUND ART A volatilization device is used to diffuse an aromatic agent, a deodorant, etc., into a room such as a car. The volatilization device accommodates a chemical such as an aromatic agent or a deodorant inside a container, and absorbs the accommodated chemical with a liquid absorbing member arranged inside the container. The liquid medicine sucked up by the liquid absorbing member volatilizes and comes out to the surroundings through the opening of the container.

A container of this type of volatilization device is formed in a cylindrical shape with a bottom, and has a peripheral wall portion and a bottom wall portion. The bottom wall portion is formed in a bowl shape in which a radially inner portion of the bottom wall portion protrudes upward with respect to the outer peripheral edge of the bottom wall portion.

This is because when the container is dropped, even if the bottom wall is deformed downward due to the weight of the chemical solution in the container, the radially inner portion of the bottom surface of the bottom wall is lower than the outer peripheral edge of the bottom. This is to prevent By raising the entire bottom wall portion in advance in a bowl shape, even if the radially inner portion of the bottom wall portion is deformed downward due to the weight of the chemical solution when the container falls, the bottom wall portion will remain in the radial direction. It is possible to prevent the inner portion from contacting the mounting surface.

Furthermore, a technique is known in which a raised portion is formed by partially raising the bottom wall portion to increase the rigidity of the container. The ridges are spaced around the axis of the container and are formed in four. The radially inner end faces of the four raised portions face each other. Further, the lower end portion of the liquid absorbing member is arranged between the radially inner end surfaces facing each other. Between the pair of protuberances adjacent in the circumferential direction, a passage is formed that continues the central portion and the peripheral portion of the bottom wall portion and guides the liquid medicine at the lower end of the container to the liquid absorbing member (for example, patent Reference 1).

JP-A-2001-225884

The above-described container having a shape in which the entire bottom wall portion is raised upward in a bowl shape has the following problems. That is, by arranging the lower end portion of the liquid absorbing member in the central portion of the bottom wall portion, the lower end portion is arranged at a position higher than the outer peripheral edge of the bottom wall portion. Therefore, there is a problem that when the remaining amount of the chemical solution in the container becomes low, the chemical solution accumulated in the peripheral edge portion remains without being sucked up by the liquid absorbing member. In particular, when a raised portion is formed on the bottom wall portion, the chemical solution remains between the raised portion and the peripheral wall portion and also in the channel portion between a pair of adjacent raised portions, making it unusable in the container. The amount of chemical solution remaining in the

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a volatilization device capable of reducing the amount of unusable and remaining chemical solution while maintaining the rigidity of the container.

In order to solve the above problems and achieve the object, the volatilization device of the present invention comprises a container and a liquid-absorbing member housed in the container. The container has a cylindrical peripheral wall portion having a front wall portion, a pair of side wall portions, and a rear wall portion , and a bottom that closes one end of the peripheral wall portion and projects to the other end side of the peripheral wall portion. and a wall. The bottom wall portion has a central portion located on the other end side of the peripheral wall portion from the outer peripheral edge, and a part of the bottom wall portion is formed so as to protrude toward the other end side and is spaced apart from the center of the bottom wall portion. three protuberances formed between the pair of protuberances adjacent to each other around the center; and a region provided between the three protuberances. and a merging section for merging. The confluence portion is located on the other end side of the outer peripheral edge of the bottom wall portion. A lower end portion of the liquid absorbing member is arranged at the confluence portion. One end on the other end side of the ridge portion of the peripheral wall portion and the bottom wall portion is located closer to the other end than one end of the protuberance on the other end side. The opening cross-sectional area of the ridge perpendicular to the axis of the peripheral wall is made smaller toward the bottom wall.

ADVANTAGE OF THE INVENTION According to this invention, the volatilization apparatus which can reduce the quantity of the chemical|medical solution which remains unusable can be provided, maintaining the rigidity of a container.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which notches and shows a part of volatilization apparatus which concerns on the 1st Embodiment of this invention. The side view which shows the same container. Sectional drawing of the same container which shows the inner surface of the bottom wall part of the same container. The front view which shows the container of the volatilization apparatus which concerns on the 2nd Embodiment of this invention. The side view which shows the same container. Sectional drawing of the same container which shows the bottom wall part of the same container. The front view which shows the container of the volatilization apparatus which concerns on the 3rd Embodiment of this invention. The side view which shows the same container. Sectional drawing of the same container which shows the bottom wall part of a container. The front view which shows the modification of the same container. The front view which shows the container of the volatilization apparatus which concerns on the 4th Embodiment of this invention. Sectional drawing of the same container which shows the bottom wall part of the same container.

A volatilization device 10 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a partially cutaway front view of the volatilization device 10. FIG. FIG. 2 is a side view showing container 20. As shown in FIG. FIG. 3 is a cross-sectional view of container 20 showing bottom wall 26 of container 20 . FIG. 3 shows a state in which the container 20 is cut along a cross section perpendicular to the axial direction of the main body 24 and viewed from above.

As shown in FIG. 1, the volatilization device 10 includes a bottomed cylindrical container 20 formed to be able to contain a chemical solution, an inner plug 40 arranged in an opening 21 of the container 20, and an inner plug 40. It has a rod-shaped liquid absorbing member 50 formed so as to be able to suck up the chemical liquid, and a diffuser 80 that is detachably attached to the container 20 . In the present embodiment, the vertical direction of the volatilization device 10 is set with the opening 21 side of the axial direction of the container 20 facing upward.

The volatilization device 10 also has a cap detachably attached to the inner plug 40 (not shown). This cap is attached when the volatilization device 10 is shipped, and is formed so as to prevent the chemical from leaking out through the inner plug 40 . The cap is removed by the user when using the volatilization device 10 .

The container 20 is made of, for example, a resin material. The container 20 is formed by blow molding, for example. The container 20 includes a cylindrical neck portion 22 having a male thread formed on the outer peripheral surface, a shoulder portion 23 formed continuously from the lower end of the neck portion 22 and gradually expanding in diameter, and a shoulder portion 23 continuously formed from the lower end of the shoulder portion 23. It has a main body portion 24 that has been The neck portion 22, shoulder portion 23, and body portion 24 are integrally formed.

The body portion 24 is formed coaxially with the neck portion 22, for example. The body portion 24 is formed in a bottomed cylindrical shape that is, for example, an ellipse when cut along a cross section perpendicular to the axial direction. Specifically, the body portion 24 has a peripheral wall portion 25 formed continuously with the shoulder portion 23 and a bottom wall portion 26 . The peripheral wall portion 25 has an outer peripheral surface 27 formed parallel or substantially parallel to the axial direction. The peripheral wall portion 25 is formed to have the same cross-sectional shape in the axial direction.

The bottom wall portion 26 closes one end of the body portion 24 . The bottom wall portion 26 has a portion radially inward from a position 32 radially inward of the outer peripheral edge 29 thereof, and is formed in a bowl-like shape that protrudes upward. Here, the bulging does not mean that the thickness of the bottom wall portion 26 is increased compared to other portions, but that a portion of the bottom wall portion 26 protrudes with the same or substantially the same thickness as the other portions. is. Also, the bowl shape is an example of a shape in which the bottom wall portion 26 protrudes upward. The protrusion of the bottom wall portion 26 means that even if the bottom wall portion 26 is deformed downward due to the weight of the chemical solution in the container 20 when the container 20 is dropped, the bottom surface 26a of the bottom wall portion 26 does not extend in the radial direction. This is to prevent the inner portion from falling below the outer peripheral edge of the bottom surface 26a. By protruding the bottom wall portion 26a, even if the radially inner portion of the bottom wall portion 26a is deformed downward due to the weight of the liquid medicine when the container 20 is dropped, the bottom wall portion 26a does not move in the radial direction of the bottom wall portion 26a. It is possible to prevent the inner portion from contacting the mounting surface. In this embodiment, the degree of protrusion of the bottom wall portion 26 is such that even when the volatilization device 10 is dropped from a height generally used, the radially inner portion of the bottom wall portion 26 is lower than the outer peripheral edge of the bottom surface 26a. It is designed to prevent this from happening. A line connecting the positions 32 is formed in an elliptical shape in plan view. That is, the line connecting the positions 32 is the outer peripheral edge of the bowl-shaped portion of the bottom wall portion 26 .

As shown in FIG. 3, the range R between the outer peripheral edge 29 of the bottom wall portion 26 and the position 32 is formed in an annular shape. In the bottom surface 26 a and the inner surface 26 b of the bottom wall portion 26 , a range R from the outer peripheral edge 29 to the position 32 is formed on a plane perpendicular to the axis L of the container 20 . Axis L is a straight line. The bottom surface 26 a is a surface of the bottom wall portion 26 facing the outside of the container 20 . The inner surface 26b is the surface facing the inside of the container 20 . Note that, in the present embodiment, the peripheral wall portion 25 is coaxial with the container 20 . That is, the axis of the peripheral wall portion 25 is the same as the axis of the container 20 . Also, the axis L passes through the center of the bottom wall portion 26 .

Therefore, the central portion of the bottom surface 26 a is located above the outer peripheral edge 29 . Further, portions of the bottom surface 26a and the inner surface 26b other than the protruding portion 31, which will be described later, are formed into gently curved surfaces projecting upward in the shape of a bowl. The center of the bottom surface 26a, that is, the position through which the axis L passes, is the highest position on the bottom surface 26a except for the raised portion 31. As shown in FIG. The center of the inner surface 26b, that is, the position through which the axis L passes, is the highest position on the inner surface 26b except for the raised portion 31. As shown in FIG.

Ridge portions 30 of the bottom wall portion 26 and the peripheral wall portion 25 are tapered radially inward as they go downward. Therefore, the outer peripheral edge 29 of the bottom wall portion 26 is arranged radially inward of the peripheral wall portion 25 . In the present embodiment, the ridge portion 30 has an inner peripheral surface 30 a and an outer peripheral surface 30 b that are inclined with respect to the axial direction of the container 20 . That is, the opening cross-sectional area perpendicular to the axial direction of the ridge portion 30 becomes smaller toward the bottom wall portion 26 .

As shown in FIG. 3 , the bottom wall portion 26 is formed with three raised portions 31 each having a fan-like shape in plan view, which corresponds to the axial direction of the main body portion 24 . More specifically, the planar shape of the protuberant portion 31 is the same as one fan shape obtained by dividing an ellipse into three. The three protruding portions 31 are formed by protruding a portion of the bottom wall portion 26 upward in a bowl shape. The three raised portions 31 are formed so as to impart rigidity to the container 20 . The three raised portions 31 are arranged side by side around the axis L, that is, around the center of the bottom wall portion 26 . The protuberance referred to here does not mean protruding due to an increase in thickness compared to other portions, but protruding with a portion of the bottom wall portion 26 having the same or substantially the same thickness as the other portions. be. Moreover, the bowl shape referred to here is an example of a shape in which the raised portion 31 protrudes, that is, a shape that protrudes upward.

Specifically, the raised portion 31 is formed radially inward from the position 32 and is spaced apart in the circumferential direction. That is, a portion of the outer peripheral edge of the raised portion 31 is arranged at the position 32 . As shown in FIGS. 1 and 2, the raised portion 31 is formed in a shape that gradually rises toward the radially inner side of the bottom wall portion 26 .

As shown in FIG. 3, between a pair of protuberances 31 arranged adjacent to each other in the circumferential direction, there is a channel portion 33 that communicates the central portion of the bottom wall portion 26 and the outer peripheral portion of the lower end portion in the container 20. is formed. A groove between a pair of raised portions 31 adjacent to each other in the circumferential direction serves as a channel portion 33 . Three flow path portions 33 are formed in the bottom wall portion 26 . The flow path part 33 is formed in a straight line in plan view in the axial direction of the container 20 .

The three flow path portions 33 merge at the center portion in the radial direction of the bottom wall portion 26 . A confluence portion 34 where the three flow passage portions 33 join is constituted by a radially inner end surface (surface portion) 35 that is the radially inner end of the bottom wall portion 26 of the three raised portions 31 . The radially inner end surface 35 is a portion of the inner surface 36 of the raised portion 31 facing the axis L of the container 20 . The radial inner end surface 35 is formed into an arcuate surface centered on the axis L. As shown in FIG. Moreover, the radial inner end surface 35 is formed in a surface that increases in diameter as it goes upward. Specifically, the radially inner end surface 35 is part of the outer peripheral surface of a cone having the axis L as its center line. That is, the radial inner end surface 35 is inclined with respect to the axial direction of the container 20 .

Next, the relationship between the upper end 37 of the inner surface 36 of the raised portion 31 and the ridge portion 30 will be described. The upper end 37 is the portion of the raised portion 31 that protrudes most toward the opening side of the container 20 . The axial height positions of the upper ends 37 of the three raised portions 31 are the same. In other words, as shown in FIG. 1, when the volatilization device 10 is placed on a mounting surface P that is a plane perpendicular to the vertical direction, the height from the mounting surface P to the upper end 37 of each of the three protuberances 31 are equal.

The upper edge 38 of the ridge 30 is higher than the upper edge 37 of the inner surface 36 of the ridge 31 . That is, the container 20 is formed so that the diameter of the container 20 is reduced from a position higher than the raised portion 31 . Top ends 37 and 38 are separated by a distance D in the axial direction of container 20 .

The inner plug 40 is shaped to fit inside the neck portion 22 of the container 20 . The inner plug 40 is, for example, cylindrical. The inner plug 40 is formed therein with a hole 41 in which the liquid absorbing member 50 can be arranged. When the inner plug 40 is arranged in the neck portion 22, it adjusts the hole 41 in which the liquid absorbing member 50 is arranged in the opening of the neck portion 22 and the pressure change in the container 20 accompanying the reduction of the chemical liquid in the container 20. The parts other than the ventilation holes (not shown) are closed.

The liquid absorbing member 50 is fitted in the hole 41 . For example, the liquid absorbing member 50 is formed in a columnar shape with a circular cross section. The diameter of the inner peripheral surface of the hole 41 is, for example, the same as or slightly larger than the outer peripheral surface of the liquid absorbing member 50 .

The liquid absorbing member 50 is arranged inside the hole 41 of the inner plug 40 . The liquid absorbing member 50 is arranged at its lower end inside the confluence portion 34 . That is, the inner plug 40 is formed so that the liquid absorbing member 50 can be arranged coaxially with the container 20 . The liquid absorbing member 50 is formed so as to be able to suck up the liquid medicine in the container 20 and lead it to its upper end. The upper end of the liquid absorbing member 50 is located above the inner plug 40 . A volatilization member 60 is in contact with the upper end portion of the liquid absorption member 50 to impregnate and volatilize the chemical liquid sucked up by the liquid absorption member 50 . The volatilization member 60 is held in the diffuser 80, and the chemical liquid reaching the volatilization member 60 from the liquid absorption member 50 evaporates and is released to the outside of the volatilization device 10, thereby diffusing to the surroundings.

In the volatilization device 10 configured in this manner, the ridge 30 forms a shape in which the diameter of the container 20 is reduced from a position higher than the upper end 37 of the raised portion 31 . Furthermore, the raised portion 31 faces the ridge portion 30 in the radial direction of the container 20 . Therefore, it is possible to reduce the volume of the space A defined between the raised portion 31 and the ridge portion 30 in the radial direction, in which the liquid medicine that is not sucked up by the liquid absorbing member 50 may accumulate.

For example, if the ridge 30 is formed at a position lower than the upper end 37 of the raised portion 31 , the raised portion 31 faces a portion of the peripheral wall portion 25 and the ridge 30 in the radial direction of the container 20 . becomes. In this case, the ridge portion 30, a part of the peripheral wall portion 25 facing the ridge portion 30 in the radial direction, and the space surrounded by the ridge portion 30 in which the liquid medicine that is not sucked up by the liquid absorbing member 50 may accumulate. The volume will be greater than the volume of space A described above.

Therefore, by arranging the ridge portion 30 having a diameter smaller than that of the peripheral wall portion 25 at a position higher than the upper end 37 of the protuberant portion 31, the volume of the space A in which the chemical solution is accumulated can be reduced. It is possible to reduce the amount of chemical solution remaining in the Also, by reducing the range R between the outer peripheral edge 29 and the position 32, the volume of the space A in which the chemical solution is accumulated can be reduced, so it is desirable to reduce the range R.

Furthermore, although the unused chemical liquid is accumulated in the channel portion 33, the number of the channel portions 33 can be reduced to three by setting the number of the raised portions 31 to three. By setting the number of flow paths 33 to three, it is possible to reduce the amount of the chemical liquid that remains unused. Note that, in the present embodiment, the width W of the flow channel portion 33 is the width of the bottom surface 33a of the flow channel portion 33, as shown in FIG. The bottom surface 33a is the length between two adjacent protuberances 31 . By setting the width W to 4.5 mm, the width of the channel portion 33 can be narrowed, so that the amount of the chemical liquid remaining in the channel portion 33 that cannot be sucked up by the liquid absorbing member 50 can be reduced. Note that setting the width W to 4.5 mm is an example, and is not limited to this. However, setting the width W of the channel portion 33 to a narrow width such as 4.5 mm as in the present embodiment can reduce the amount of the chemical liquid remaining in the channel portion 33 without being sucked up by the liquid absorbing member 50. so preferred. Thus, according to the volatilization device 10 of the present embodiment, the amount of unusable chemical liquid remaining in the container 20 can be reduced while maintaining the rigidity of the container 20 .

In addition, since the radially inner end surface 35 of the bottom wall portion 26 of each of the raised portions 31 constituting the confluence portion 34 is formed into an arcuate surface centered on the axis L, the liquid absorbing member 50 can be inserted into the container 20. At this time, the lower end portion of the liquid absorbing member 50 is guided by the radially inner end surface 35 and smoothly guided into the junction portion 34 . Furthermore, since the radially inner end surface 35 is formed on a surface that is inclined with respect to the axial direction of the container 20 , the liquid absorbing member 50 can be guided into the confluence portion 34 more smoothly.

Next, a container 20A used in a volatilization device according to a second embodiment of the present invention will be described with reference to FIGS. 4 to 6. FIG. In addition, the structure which has the same function as 1st Embodiment attaches|subjects the code|symbol same as 1st Embodiment, and abbreviate|omits description.

FIG. 4 is a front view showing the container 20A of the volatilization device of this embodiment. FIG. 5 is a side view showing the container 20A. FIG. 6 is a cross-sectional view of container 20 showing bottom wall portion 26A of container 20A. FIG. 6 shows a state in which the container 20A is cut along a cross section perpendicular to the axial direction at the main body portion 24A and viewed from above.

The volatilization device of the present embodiment includes a bottomed cylindrical container 20A formed so as to be able to contain a chemical solution, an inner plug arranged in an opening 21 of the container 20A, and an inner plug arranged in the inner plug, so that the chemical liquid can be sucked up. and a diffuser detachably attached to the container 20A. The inner plug, the liquid absorbing member, the volatilization member, and the diffuser are the same as the inner plug 40, the liquid absorbing member 50, the volatilization member 60, and the diffuser 80 of the first embodiment. The inner plug of this embodiment is formed so that the liquid absorbing member 50 can be arranged coaxially with the center line C1 of the bottom wall portion 26A, and the lower end portion of the liquid absorbing member is formed in the central portion of the bottom wall portion 26A. It is arranged in the confluence section 34 .

The container 20A is made of resin material, for example. The container 20A is formed by blow molding, for example. As shown in FIG. 4, the container 20A has a neck portion 22, a shoulder portion 23, and a body portion 24A formed continuously from the lower end of the shoulder portion 23. As shown in FIG. The neck portion 22, the shoulder portion 23, and the body portion 24A are integrally formed. The body portion 24A has a rectangular parallelepiped appearance. Specifically, the body portion 24A has a peripheral wall portion 25A formed continuously with the shoulder portion 23 and a bottom wall portion 26A.

As shown in FIGS. 5 and 6, at least a part of the outer peripheral surface 27A of the peripheral wall portion 25A is formed so that the opening cross-sectional area perpendicular to the axial direction of the main body portion 24A decreases downward. . For example, a part of the peripheral wall portion 25A may be inclined in the axial direction of the container 20A so that the opening cross-sectional area orthogonal to the axial direction decreases downward. Alternatively, at least a portion of the peripheral wall portion 25A may be formed into a curved shape.

In this embodiment, the peripheral wall portion 25A has a front wall portion 70, a pair of side wall portions 71, and a rear wall portion 72. As shown in FIG. The front wall portion 70 and the pair of side wall portions 71 are curved downward toward the center line C1 of the bottom wall portion 26A of the container 20A. The rear wall portion 72 is formed parallel to the axial direction. In this embodiment, the body portion 24A is formed in a rectangular parallelepiped shape, but the rectangular parallelepiped shape referred to here is not strictly a rectangular parallelepiped shape. In this embodiment, the inner and outer surfaces of the ridges of the front wall portion 70 and the side wall portion 71 are formed into curved surfaces. The inner and outer surfaces of the ridges of the rear wall portion 72 and the side wall portion 71 are formed into curved surfaces. In addition, as shown in FIG. 6, each of the front wall portion 70, the pair of side wall portions 71, and the rear wall portion 72 has a curved cross-sectional shape perpendicular to the axis of the container 20A. .

As shown in FIG. 6, the bottom wall portion 26A has a rectangular shape when viewed in the axial direction of the container 20A, that is, when viewed from above. Note that the term "rectangular" here does not mean strictly rectangular. In this embodiment, as shown in FIG. 6, the bottom wall portion 26A has an outer edge that is curved according to the front wall portion 70 and the side wall portions 71 .

As with the bottom wall portion 26 of the first embodiment, the bottom wall portion 26A is designed so that the inner portion of the bottom wall portion 26A is lower than the outer peripheral edge even if the volatilization device is dropped and deformed by the weight of the chemical solution. A portion inside the outer peripheral edge is formed into a shape that rises upward in the shape of a bowl so as to be preventable. Here, the bulge does not mean that the thickness of the bottom wall portion 26A is increased compared to other portions, but that a portion of the bottom wall portion 26A protrudes with the same or substantially the same thickness as the other portions. is. Also, the bowl shape is an example of a shape in which the bottom wall portion 26A protrudes upward.

The bottom wall portion 26A is formed with three raised portions 31, three flow passage portions 33, and a confluence portion 34. As shown in FIG. The three raised portions 31, the three flow passage portions 33, and the confluence portion 34 are formed in the same manner as in the first embodiment. In addition, since the bottom wall portion 26A is formed in a rectangular shape in plan view, each of the raised portions 31 of the present embodiment is formed in a shape that is one of the shapes obtained by dividing the rectangle into three. It is formed in a triangular shape when viewed. Also, the three raised portions 31 are arranged side by side around a center line C1 passing through the center of the bottom wall portion 26A. The center line C1 is a straight line parallel to the axis L of the peripheral wall portion 25A.

The protruding portion 31 is formed by protruding the bottom wall portion 26A as in the first embodiment. A radially inner end surface 35 of the raised portion 31 is a surface portion facing the center line C1 in the present embodiment, and is formed into an arcuate surface centered on the center line C1. Moreover, the radial inner end surface 35 is formed in a surface that increases in diameter as it goes upward. Specifically, the radially inner end surface 35 is part of the outer peripheral surface of a cone having the axis L as its center line. That is, the radial inner end surface 35 is inclined with respect to the axial direction of the container 20 . The radial inner end face 35 of this embodiment has the same function as the radial inner end face 35 of the first embodiment.

In the inner surface of the bottom wall portion 26A, in the portion other than the raised portion 31, the center through which the center line C1 passes is the highest position. In the bottom surface of the bottom wall portion 26A, in the portion other than the raised portion 31, the center through which the center line C1 passes is the highest position.

In the container 20A of the volatilization device of the present embodiment, the peripheral wall portion 25A has a front wall portion 70 and a pair of side wall portions 71 that are curved so that the lower ends thereof are located closer to the center line C1 than the upper ends thereof. As a result, the opening cross-sectional area perpendicular to the axial direction of the main body portion 24A decreases downward.

Therefore, when the peripheral wall 25A is formed parallel to the axis, the volume of the space B in which the remaining liquid without being sucked up by the liquid absorbing member 50 is accumulated. can be made relatively small. Therefore, the same effects as in the first embodiment can be obtained in this embodiment as well.

Next, a container 20B used in a volatilization device according to a third embodiment of the invention will be described with reference to FIGS. 7 to 9. FIG. In addition, the structure which has the same function as 1st Embodiment attaches|subjects the code|symbol same as 1st Embodiment, and abbreviate|omits description.

FIG. 7 is a front view showing the container 20B. FIG. 8 is a side view showing the container 20B. FIG. 9 is a cross-sectional view of container 20B showing bottom wall portion 26B of container 20B. FIG. 10 is a front view showing the container 20B.

As shown in FIG. 7, the volatilization device of the present embodiment includes a bottomed cylindrical container 20B capable of containing a chemical solution, an inner plug arranged in an opening 21 of the container 20B, and an inner plug arranged in the inner plug. , a liquid absorbing member formed to be able to suck up the chemical liquid, and a diffuser detachably attached to the container 20A. The inner plug, the liquid absorbing member, the volatilization member, and the diffuser are the same as the inner plug 40, the liquid absorbing member 50, the volatilization member 60, and the diffuser 80 of the first embodiment. As in the first embodiment, the inner plug of the present embodiment has a liquid absorbing member arranged coaxially with the container 20B, and the lower end of the liquid absorbing member is a confluence portion 34 formed at the center of the bottom wall portion 26B. It is formed so that it can be placed inside.

The container 20B is made of resin material, for example. The container 20B is formed by blow molding, for example. The container 20B has a neck portion 22, a shoulder portion 23, and a body portion 24B formed continuously from the lower end of the shoulder portion 23. As shown in FIG. The body portion 24B is formed coaxially with the neck portion 22, for example. The neck portion 22, the shoulder portion 23, and the body portion 24B are integrally formed. As shown in FIG. 9, the body portion 24B is formed into an elliptical shape when cut along a cross section orthogonal to the axial direction. Specifically, the body portion 24B has a peripheral wall portion 25 and a bottom wall portion 26B. In this embodiment, the axis L of the container 20B is the same as the axis of the peripheral wall portion 25 and passes through the center of the bottom wall portion 26B. That is, the axis L is the same as the centerline of the bottom wall portion 26B.

The bottom wall portion 26B has a concave portion 101 extending downward in a range from a radially inner position 32B to an inner side of the outer peripheral edge 29B. A range R1 between the outer peripheral edge 29B and the position 32B in the bottom wall portion 26B is formed in an annular shape. Further, a range R1 portion of the bottom surface 26Ba and the inner surface 26Bb of the bottom wall portion 26B is formed on a plane orthogonal to the axial direction of the container 20B.

Specifically, the recess 101 has a recess peripheral wall portion 102 and a recess bottom wall portion 103 . The inner peripheral surface and the outer peripheral surface of the recess peripheral wall portion 102 are formed parallel to the axial direction of the container 20B. The bottom wall portion 103 for recess is formed in an elliptical planar shape. As shown in FIGS. 8 and 9, the bottom wall portion 103 for the recess portion 103 has a portion radially inward from the outer peripheral edge 104 of the bottom wall portion 103 for volatilization in the same manner as the bottom wall portion 26 of the first embodiment. The bottom wall portion 103 for the recess portion 103 is formed in a shape that protrudes upward in a bowl shape so as to prevent the inner portion in the radial direction of the bottom wall portion 103 from falling below the outer peripheral edge even if the device is deformed by the weight of the liquid medicine when the device is dropped. ing. The center of the recess peripheral wall portion 102 coincides with the center of the bottom wall portion 26B in this embodiment. Therefore, the axis L passes through the center of the recess peripheral wall portion 102 . Here, the bulging does not mean that the thickness of the bottom wall portion 26 is increased compared to other portions, but that a portion of the bottom wall portion 26 protrudes with the same or substantially the same thickness as the other portions. is. Also, the bowl shape is an example of a shape in which the bottom wall portion 26 protrudes upward.

Three raised portions 31 , three flow passage portions 33 , and a confluence portion 34 are formed in the recess bottom wall portion 103 . The three raised portions 31, the three flow passage portions 33, and the confluence portion 34 are formed in the same manner as in the first embodiment. The three raised portions 31 are arranged side by side around the axis L, that is, around the center of the recess bottom wall portion 103 . The protruding portion 31 is formed by protruding the bottom wall portion 26B in the same manner as in the first embodiment. As in the first embodiment, the raised portion 31 of the present embodiment has a radially inner end surface 35 that is an arcuate surface centered on the axis L and inclined in the axial direction. The upper end 37 of the inner surface 36 of the raised portion 31 is located above the outer peripheral edge 29B. On the inner surface of the recess bottom wall portion 103, the center 106 through which the axis L passes is the highest position in the portion other than the raised portion 31. As shown in FIG. In the bottom surface of the recessed bottom wall portion 103 , the center through which the axis L passes is the highest position in the portion other than the raised portion 31 .

In the container 20</b>B of the volatilization device of the present embodiment, the chemical liquid remaining in the container 20</b>B without being sucked up by the liquid absorbing member 50 accumulates in the space C between the peripheral wall portion 102 for recess and the raised portion 31 . The recessed portion 101 is formed in a range radially inner than the peripheral wall portion 25 of the container 20B. Therefore, the volume of the space C can be reduced compared to the case where the concave portion 101 is not formed, so the amount of unusable liquid medicine remaining in the container 20 can be reduced . Further, the formation of the three raised portions 31 can impart rigidity to the container 20B. Therefore, the volatilization device 10B can obtain the same effects as those of the first embodiment.

In addition, in the present embodiment, the upper end 38 of the ridge 30 between the peripheral wall 25 and the bottom wall 26 is located above the upper end 37 of the raised portion 31, but the present invention is not limited to this. This is because the concave portion 101 can reduce the amount of liquid medicine that remains without being sucked up by the liquid absorbing member 50 .

Further, in the present embodiment, the recess peripheral wall portion 102 of the recess 101 is formed parallel to the axial direction of the container 20B. That is, the inner peripheral surface and the outer peripheral surface of the recessed peripheral wall portion 102 are formed parallel to the axial direction of the container 20B. However, it is not limited to this. For example, as in the modified example of the container 20B shown in FIG. 10, the recess peripheral wall portion 102 is configured such that the lower end 102a of the recess peripheral wall portion 102 is positioned further than the upper end 102b of the recess peripheral wall portion 102 in the axial direction of the container 20C. may also be slanted such that the

Since the volume of the space C can be further reduced by inclining the recess peripheral wall portion 102 as described above, the amount of unused chemical liquid remaining in the container 20C can be reduced.

Next, 20 C of containers used for the volatilization apparatus which concerns on 4th Embodiment are demonstrated using FIG.11 and FIG.12. In addition, the structure which has the same function as 3rd Embodiment attaches|subjects the code|symbol same as 3rd Embodiment, and abbreviate|omits description.

FIG. 11 is a front view showing the container 20C. FIG. 12 is a cross-sectional view of container 20C showing bottom wall portion 26C of container 20C. FIG. 12 shows a state in which the container 20C is cut along a cross section perpendicular to the axial direction of the main body portion 24C and viewed from above.

The volatilization device of the present embodiment includes a bottomed cylindrical container 20C capable of containing a chemical solution, an inner plug formed in a cylindrical shape and arranged in an opening 21 of the container 20C, and disposed in the inner plug, It has a liquid absorbing member that is capable of sucking up the chemical liquid and a diffuser that is detachably attached to the container 20C. The inner plug, the liquid absorbing member, the volatilization member, and the diffuser are the same as the inner plug 40, the liquid absorbing member 50, the volatilization member 60, and the diffuser 80 of the first embodiment. As in the first embodiment, the inner plug of this embodiment has a liquid-absorbing member arranged coaxially with the container 20A, and the lower end portion of the liquid-absorbing member is formed in the central portion of the bottom wall portion 26C. It is formed so that it can be placed inside. The container 20C is made of resin material, for example. The container 20C is formed, for example, by blow molding. The container 20C has a neck portion 22, a shoulder portion 23, and a body portion 24C formed continuously from the lower end of the shoulder portion 23. As shown in FIG.

The body portion 24C is formed coaxially with the neck portion 22, for example. As shown in FIG. 11, the body portion 24C is formed in an elliptical shape when cut along a cross section perpendicular to the axial direction of the container 20C. The body portion 24C specifically has a peripheral wall portion 25 and a bottom wall portion 26C. In this embodiment, the axis L of the container 20C is the same as the axis of the peripheral wall portion 25 and passes through the center of the bottom wall portion 26C. That is, the axis L is the same as the centerline of the bottom wall portion 26C.

A concave portion 101 is formed in the bottom wall portion 26C. The concave portion 101 is formed in a shape that is one step lower than the outer peripheral edge 29C of the bottom wall portion 26C. Specifically, the recess 101 has a recess peripheral wall portion 102</b>C and a recess bottom wall portion 103 . The recess bottom wall portion 103 is formed in the same manner as in the third embodiment. That is, the portion radially inward of the outer peripheral edge 104 of the recess bottom wall portion 103 is formed in a shape that protrudes upward in the shape of a bowl. A merging portion 34 is formed in the central portion thereof. The three raised portions 31 are arranged side by side around the axis L. As shown in FIG. The raised portion 31, the flow path portion 33, and the confluence portion 34 are formed in the same manner as in the third embodiment. As shown in FIG. 12, the recess peripheral wall portion 102C is formed in an elliptical shape by cutting the inner peripheral surface and the outer peripheral surface thereof along a cross section orthogonal to the axial direction.

A protruding portion 110 that protrudes outward in the radial direction of the container 20C is formed on the recessed peripheral wall portion 102C. The protruding portion 110 has a shape in which a part of the peripheral wall portion 102C for recess is bent radially outward and protrudes. Two projecting portions 110 are formed in this embodiment, and each is formed at a portion of the elliptical recess peripheral wall portion 102C that intersects the major axis L0 as described above.

In this embodiment, effects similar to those of the third embodiment can be obtained. Furthermore, the volume of the space C can be further reduced by forming the projecting portion 110 on the peripheral wall portion 102C. This effect will be specifically described.

By forming the projecting portion 110 , the contact area of the bottom wall portion 26</b>C with the mounting surface P can be increased by the amount of the projecting portion 110 . When the container 20C is placed on the placement surface P, the posture becomes more stable as the contact area between the bottom wall portion 26C and the placement surface P increases. Further, as the diameter of the recess 101 increases, the contact area between the bottom wall portion 26C and the mounting surface P increases. The diameter of the concave portion 101 is reduced by the increase in the contact area, and the necessary contact area between the bottom wall portion 26C and the mounting surface P is maintained. The required contact area is an area that can stabilize the posture when the volatilization device is placed on the placement surface P.

Since the diameter of the recessed portion 101 can be reduced in this way, the volume of the space C between the recessed peripheral wall portion 102C and the raised portion 31 can be reduced. can be reduced.

Note that the tubular shape referred to in the present invention and the first to fourth embodiments is not limited to an elliptical tubular shape or a rectangular parallelepiped tubular shape. The tubular shape also includes, in other examples, a cylindrical shape, a rectangular tubular shape, a triangular tubular shape, and the like. In short, a tubular shape is a shape having a peripheral wall portion that continues around its axis.

In addition, in the first to fourth embodiments, the container 20 has a neck portion 22, a shoulder portion 23, and body portions 24, 24A, 24B, and 24C, and is formed into a cylindrical shape with different cross-sectional shapes in the axial direction. It is The term "cylindrical" as used in the present invention includes shapes having different cross-sectional shapes in the axial direction. However, it is not limited to this. In another example, the container 20 may not have the neck portion 22 and the shoulder portion 23, and may have only the body portions 24, 24A, 24B, 24C.

Further, in the first to fourth embodiments, the raised portion 31 is formed by projecting the bottom wall portions 26, 26A, 26B, and 26C with the same or substantially the same thickness as the other portions of the bottom wall portion. However, it is not limited to this. In another example, the raised portion 31 may have a shape that protrudes by increasing the thickness of the bottom wall portions 26, 26A, 26B, and 26C compared to other portions of the bottom wall portions.

In addition, the volatilization device 10 of the first to fourth embodiments has containers 20, 20A, 20B, 20C, an inner plug 40, a liquid absorption member 50, a volatilization member 60, and a diffuser 80 as its configuration. It is not limited to this. In another example, a configuration without the inner plug 40 and the diffuser 80 may be used. In short, the volatilization device only needs to have a container and a liquid-absorbing member that sucks up the chemical liquid in the container, and the container itself may be formed so that the lower end of the liquid-absorbing member can be arranged in the confluence portion 34. In this case, for example, the opening such as the neck of the container may be formed into a shape into which the absorbent member is fitted.

In addition, in the first to fourth embodiments, the protruding shape of the bottom wall portions 26, 26A and the recessed bottom wall portion 103 is bowl-shaped as an example, but is not limited to this. For example, the depth of the bowl is not limited. Still other examples may be dome-shaped or dish-shaped. The protrusion of the bottom wall may prevent the inner portion of the bottom wall from falling below the outer peripheral edge due to the weight of the liquid medicine when the container is dropped. Note that the height at which the container 20 falls varies depending on the usage environment. For this reason, in the first to fourth embodiments, as an example, the degree of protrusion of the bottom wall portion is determined in consideration of the height to be used. However, since the bottom wall portion protrudes, at least the degree of breakage of the bottom wall portion due to the dropping of the container can be reduced. By determining the degree of protrusion of the bottom wall portion in consideration of the environment in which the container is used, damage to the bottom wall portion can be prevented or the degree of damage can be reduced.

Further, in the first to fourth embodiments, the planar shape of the raised portion 31 is formed in the same shape as the shape obtained by dividing the bottom wall portion into three portions around the center. However, it is not limited to this. In another example, the planar shape of the raised portion 31 may be a shape other than a shape similar to a shape obtained by dividing the bottom wall into three parts around the center.

It should be noted that the present invention is not limited to the above-described embodiments, and can be variously modified in the implementation stage without departing from the gist of the invention. Moreover, each embodiment may be implemented in combination as much as possible, and in that case, the combined effect can be obtained. Furthermore, the above-described embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiments, the problems described in the column of problems to be solved by the invention can be solved, and the effects described in the column of effects of the invention is obtained, the configuration from which this constituent element is deleted can be extracted as an invention.
Description equivalent to the invention described in the claims at the time of filing of the present application will be added below.
[1]
a peripheral wall portion formed in a cylindrical shape;
a bottom wall portion that closes one end of the peripheral wall portion and protrudes toward the other end of the peripheral wall portion;
and
The bottom wall portion includes three protrusions which are partly protuberant on the other end side and are spaced apart around the center of the bottom wall, and a pair of protrusions adjacent to each other around the center. a channel portion formed between each portion, and a confluence portion formed in a region provided between the three protruding portions and joining the three channel portions;
The ridges of the peripheral wall portion and the bottom wall portion are formed from the other end side of the protruding portion from one end of the other end side, and the opening cross-sectional area perpendicular to the axis of the peripheral wall portion is the bottom wall portion. formed smaller toward the part
container.
[2]
a peripheral wall portion formed in a cylindrical shape;
a bottom wall portion that closes one end of the peripheral wall portion and protrudes toward the other end of the peripheral wall portion;
and
The bottom wall portion includes three protrusions which are partly protuberant on the other end side and are spaced apart from each other around the center of the bottom wall, and between a pair of adjacent protrusions. and a confluence portion formed in a region provided between the three protruding portions and joining the three flow channel portions,
The peripheral wall portion has an opening cross-sectional area perpendicular to its axis that is smaller than one end of the protuberance on the other end side toward the bottom wall portion from the other end side.
container.
[3]
a peripheral wall portion formed in a cylindrical shape;
a bottom wall portion that closes one end of the peripheral wall portion;
and
The bottom wall portion has a concave portion peripheral wall portion and a concave portion bottom wall portion projecting toward the other end side of the peripheral wall portion, and has a concave portion recessed in a direction away from the other end,
The bottom wall portion for the recess portion is formed so as to protrude from the other end side and is adjacent to three protuberant portions located around the center of the bottom wall portion for the recess portion. A channel portion formed between each of the pair of raised portions, and a confluence portion formed in a region provided between the three raised portions to merge the three channel portions.
container.
[4]
The recess peripheral wall portion is inclined so that one end on the recess bottom wall portion side is located closer to the axis line side of the peripheral wall portion than the other end.
The container according to [3].
[5]
The facing surface portions of the three raised portions are formed into arcuate surfaces centered on a center line that passes through the center of the bottom wall portion and is parallel to the axis of the peripheral wall portion.
The container according to any one of [1] to [4].
[6]
the container according to any one of [1], [2], and [3];
a liquid absorbing member housed in the container;
volatilization device equipped with.

REFERENCE SIGNS LIST 10 volatilization device 20 container 20A container 20B container 20C container 25 peripheral wall portion 25A peripheral wall portion 26 bottom wall portion 26A bottom wall portion 26B bottom wall portion 26C Bottom wall portion 30 Ridge portion 31 Raised portion 35 Radial direction inner end surface (surface portion) 33 Flow path portion 34 Merging portion.

Claims (2)

A volatilization device comprising a container and a liquid absorbing member housed in the container,
The container includes a cylindrical peripheral wall portion having a front wall portion, a pair of side wall portions, and a rear wall portion , and a peripheral wall portion that closes one end of the peripheral wall portion and protrudes to the other end side of the peripheral wall portion. a bottom wall;
The bottom wall portion has a central portion located on the other end side of the peripheral wall portion from the outer peripheral edge thereof, and a part of the bottom wall portion is formed so as to protrude toward the other end side and is spaced apart from the center of the bottom wall portion. three protuberances located there; flow passages respectively formed between a pair of protuberances adjacent to each other around the center; and three flow passages formed in a region provided between the three protuberances and a confluence section for merging the
the confluence portion is located on the other end side of the outer peripheral edge of the bottom wall portion, and the lower end portion of the liquid absorbing member is disposed in the confluence portion;
one end on the other end side of the ridge of the peripheral wall portion and the bottom wall portion is located closer to the other end than one end of the protuberance on the other end side;
The cross-sectional area of the opening of the ridge perpendicular to the axis of the peripheral wall is made smaller toward the bottom wall.
volatilization device . The facing surface portions of the three raised portions are formed into arcuate surfaces centered on a center line that passes through the center of the bottom wall portion and is parallel to the axis of the peripheral wall portion.
The volatilization device according to claim 1 .

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