Application container

Abstract

Even if the cap is removed from the mouth of the container while the internal pressure of the container body has increased, the contents will not spray out through the connecting passage. [Solution] The container comprises a container body 11 for containing the liquid contents, a cylindrical stopper member 12 attached to the mouth 11a of the container body, and an impregnating material 13 attached to the inside of the stopper member and capable of impregnating the liquid contents. The stopper member comprises a containment cylinder 15 for containing the impregnating material with its upper end protruding, and a communication cylinder 16 that connects the inside of the containment cylinder and the inside of the container body. A communication passage 21 is provided between the containment cylinder and the impregnating material, connecting the inside of the communication cylinder and the upper end opening 15b of the containment cylinder. The communication cylinder has a main passage 22 that connects the communication passage and the inside of the container body, and a capillary passage 23 that connects the communication passage and the inside of the container body, and has a smaller flow path cross-sectional area than the main passage, causing capillary action, arranged in parallel.

Description

Technical Field

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[0001] The present invention relates to a coating container.

Background Art

[0002] Conventionally, there has been provided a coating container including a container body for containing a content liquid, a cylindrical inner stopper member attached to the mouth of the container body, and an impregnating material attached inside the inner stopper member and capable of impregnating the content liquid. The inner stopper member includes a storage cylinder for storing the impregnating material in a state where the upper end thereof protrudes, and a communication cylinder for communicating the inside of the storage cylinder and the inside of the container body with each other. A communication path for communicating the inside of the communication cylinder and the upper end opening of the storage cylinder with each other is provided between the storage cylinder and the impregnating material.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

[0007] When the application container is inverted during application of the liquid contents, the liquid contents inside the container flow into the connecting passage through the main passage and, while impregnating the impregnating material, are applied to the area to be coated. Subsequently, when the application container is returned to an upright position, the liquid contents in the connecting passage flow into the capillary passage, rather than the main passage, within the connecting cylinder due to capillary action. Furthermore, when the cap is removed from the mouth of the container body while the internal pressure of the container body has increased during the next application, the air inside the container body flows into the main passage, which has a larger flow path cross-sectional area, within the connecting cylinder and is blown out through the connecting passage, thereby preventing the liquid contents from being blown out.

[0008] The housing cylinder is formed in the shape of a bottomed cylinder having an annular bottom wall, and the communicating cylinder comprises an outer cylinder formed integrally with the bottom wall of the housing cylinder and an inner cylinder fitted inside the outer cylinder, the main passage is the inside of the inner cylinder, and the capillary passage may be formed by the gap provided between the outer cylinder and the inner cylinder, and the gap provided between the bottom wall of the housing cylinder and the inner cylinder.

[0009] The connecting cylinder comprises an outer cylinder formed integrally with the bottom wall of the containment cylinder and an inner cylinder fitted inside the outer cylinder. The main passage is located inside the inner cylinder, and the capillary passages are formed by the gaps between the outer cylinder and the inner cylinder, and the gaps between the bottom wall of the containment cylinder and the inner cylinder. By using inner cylinders of different dimensions, it is possible to accommodate multiple types of liquid contents with different viscosities. [Effects of the Invention]

[0010] According to one aspect of the present invention, even if the cap is removed from the mouth of the container body while the internal pressure of the container body has increased, it is possible to prevent the liquid contents from spraying out through the communication channel. [Brief explanation of the drawing]

[0011] [Figure 1] This is a longitudinal cross-sectional view of a coating container shown as one embodiment. [Figure 2] This is a cross-sectional view taken along the line II-II in Figure 1. [Modes for carrying out the invention]

[0012] A coating container according to one embodiment of the present invention will be described below with reference to the drawings. As shown in Figure 1, the coating container 1 according to this embodiment comprises a container body 11, an inner stopper member 12, an impregnation material 13, and a cap 14. The container body 11 is formed in a bottomed cylindrical shape, the inner stopper member 12 is formed in a cylindrical shape, the impregnating material 13 is formed in a solid rod shape, and the cap 14 is formed in a topped cylindrical shape. The container body 11, the inner stopper member 12, the impregnating material 13, and the cap 14 are arranged coaxially with a common axis.

[0013] Hereinafter, this common axis will be referred to as the container axis O, the side of the container body 11 with its opening 11a aligned with the container axis O will be referred to as the upper side, the side with its bottom 11b aligned with the container axis O will be referred to as the lower side, and the direction along the container axis O will be referred to as the vertical direction. The direction that intersects the container axis O when viewed from the vertical direction will be referred to as the radial direction, and the direction that circles around the container axis O when viewed from the vertical direction will be referred to as the circumferential direction.

[0014] The liquid contents are contained within the container body 11. The liquid contents are not particularly limited, but examples include hair growth agents, antifungal medications, cosmetics, and other liquids applied to the body or skin. A male threaded portion is formed on the outer surface of the opening 11a of the container body 11. The cap 14 is detachably attached to the opening 11a. The cap 14 has a female thread that screws onto the male thread of the opening 11a. Alternatively, the cap 14 may be detachably fitted onto the opening 11a. A sealing cylinder 14b extending downward is formed on the top wall 14a of the cap 14. The upper end of the impregnating material 13 is inserted into the sealing cylinder 14b. The lower end of the sealing cylinder 14b is in liquid-tight contact with the upper end of the inner plug member 12.

[0015] The impregnating material 13 is installed inside the inner stopper member 12. Examples of the impregnating material 13 include porous materials such as sponges, or fibrous materials in which synthetic fibers are solidified with a resin solution and can be impregnated with the liquid contents using capillary action. However, it is not limited to these cases, as long as it can impregnate with the liquid contents.

[0016] The inner stopper member 12 is attached to the mouth portion 11a of the container body 11. The inner stopper member 12 comprises a housing cylinder 15 and a connecting cylinder 16.

[0017] A mounting tube 12a is formed on the outer circumferential surface of the containment tube 15, projecting radially outward and extending downward. The mounting tube 12a is liquid-tightly fitted into the mouth 11a of the container body 11. A flange portion 12b is formed on the mounting tube 12a, projecting radially outward and extending continuously around its entire circumference. The flange portion 12b is positioned at the upper opening edge of the mouth 11a.

[0018] The impregnating material 13 is accommodated in the accommodation cylinder 15. The upper end portion of the impregnating material 13 protrudes upward from the accommodation cylinder 15. On the inner peripheral surface of the accommodation cylinder 15, a plurality of vertical ribs 18 that protrude radially inward and extend in the vertical direction are formed at intervals in the circumferential direction. The outer peripheral surface of the impregnating material 13 is supported by the radially inner end surface of the vertical rib 18. The accommodation cylinder 15 is formed in a bottomed cylindrical shape having an annular bottom wall 15a. A plurality of support ribs 17 that protrude upward are formed at intervals in the circumferential direction on the inner peripheral edge portion of the upper surface of the bottom wall 15a. The lower end surface of the impregnating material 13 is supported by the upper surface of the support rib 17. The gap between the inner peripheral surface of the accommodation cylinder 15 and the outer peripheral surface of the impregnating material 13, and the gap between the upper surface of the bottom wall 15a of the accommodation cylinder 15 and the lower end surface of the impregnating material 13 constitute a communication passage 21 that communicates the inside of the communication cylinder 16 and the upper end opening 15b of the accommodation cylinder 15 with each other.

[0019] The communication cylinder 16 communicates the inside of the accommodation cylinder 15 and the inside of the container body 11 with each other. In the communication cylinder 16, a main passage 22 and a capillary passage 23 are provided in parallel. The main passage 22 communicates the communication passage 21 and the inside of the container body 11 with each other. The capillary passage 23 communicates the communication passage 21 and the inside of the container body 11 with each other, has a smaller flow passage cross-sectional area than the main passage 22, and causes capillary action. A plurality of capillary passages 23 are provided at intervals in the circumferential direction on the radially outer side of the main passage 22.

[0020] In the illustrated example, the communication cylinder 16 includes an outer cylinder 24 formed integrally with the accommodation cylinder 15 and an inner cylinder 25 fitted inside the outer cylinder 24. The main passage 22 is inside the inner cylinder 25. The diameter of the main passage 22 is, for example, 0.5 mm to 1.0 mm. The capillary passage 23 is constituted by the gap provided between the outer cylinder 24 and the inner cylinder 25 and the gap provided between the bottom wall 15a of the accommodation cylinder 15 and the inner cylinder 25.

[0021] As shown in FIG. 2, on the inner peripheral surface of the outer cylinder 24, a plurality (for example, two) of locking ribs 24a that project radially inward and extend in the vertical direction are formed at equal intervals in the circumferential direction. The locking ribs 24a are in contact with the outer peripheral surface of the inner cylinder 25. On the upper end opening edge of the inner cylinder 25, a plurality of grooves 25a that communicate the inside of the inner cylinder 25 with the gap between the outer peripheral surface of the inner cylinder 25 and the inner peripheral surface of the outer cylinder 24 are formed at intervals in the circumferential direction. The inner surface of the groove 25a constitutes a part of the capillary passage 23. Note that the groove 25a is also formed on the lower end opening edge of the inner cylinder 25. <00> The lower end portion of the inner cylinder 25 is located above the lower end portion of the outer cylinder 24 and below the upper end opening edge of the mouth portion 11a. The lower end portion of the outer cylinder 24 is located above the lower end portion of the mounting cylinder 12a.

[0022] As described above, according to the coating container 1 of the present embodiment, when the coating container 1 is placed in an inverted posture during the application of the content liquid, the content liquid in the container body 11 flows into the communication passage 21 through the main passage 22 and impregnates the impregnating material 13, and then is applied to the coated portion. After that, when the coating container 1 is placed in a upright posture, the content liquid in the communication passage 21 flows into the capillary passage 23 in the communication cylinder 16 by capillary action, rather than into the main passage 22. Then, at the next application, when the cap 14 is removed from the mouth portion 11a of the container body 11 with the internal pressure of the container body 11 increased, the air in the container body 11 flows into the main passage 22 with a large flow path cross-sectional area in the communication cylinder 16 and is blown out through the communication passage 21, so that the outflow of the content liquid can be suppressed.

[0023] The communication cylinder 16 includes an outer cylinder 24 integrally formed with the bottom wall 15a of the housing cylinder 15 and an inner cylinder 25 fitted inside the outer cylinder 24. The main passage 22 is inside the inner cylinder 25, and the capillary passage 23 is constituted by the gap between the outer cylinder 24 and the inner cylinder 25 and the gap between the bottom wall 15a of the housing cylinder 15 and the inner cylinder 25. Therefore, by adopting inner cylinders 25 of different dimensions, it is possible to cope with a plurality of types of content liquids having different viscosities and the like.

[0024] Furthermore, the technical scope of the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention.

[0025] For example, the outer cylinder 24 and the inner cylinder 25 may be formed as a single unit.

[0026] Furthermore, without departing from the spirit of the present invention, the components in the above embodiments may be replaced with well-known components as appropriate, and the above embodiments and modifications may be combined as appropriate. [Explanation of Symbols]

[0027] 1. Application container 11 Container body 11a Mouth 12. Inner plug member 13 Impregnation material 15. Storage tube 15a Bottom wall 15b Top opening 16 Communication tube 21 Communication path 22 Main aisle 23 Capillary passage 24 Outer cylinder 25 Inner cylinder

Claims

1. A container body for holding the liquid contents, A cylindrical stopper member attached to the mouth of the container body, The system comprises an impregnating material that is fitted inside the inner stopper member and capable of impregnating the liquid contents, The aforementioned plug member is A housing cylinder that houses the impregnating material with its upper end protruding, It comprises a connecting cylinder that connects the inside of the storage cylinder and the inside of the container body to each other, A communication passage is provided between the containment cylinder and the impregnation material, connecting the inside of the communication cylinder and the upper end opening of the containment cylinder to each other. The aforementioned communication tube includes, The aforementioned connecting passage and the main passage that connects the inside of the container body to each other, A coating container having, in parallel, the aforementioned communication passage and the inside of the container body, and a capillary passage having a smaller flow path cross-sectional area than the main passage and causing capillary action.

2. The aforementioned storage cylinder is formed in the shape of a bottomed cylinder having an annular bottom wall, The aforementioned communication cylinder comprises an outer cylinder formed integrally with the bottom wall of the housing cylinder, and an inner cylinder fitted inside the outer cylinder. The main passage is located inside the inner cylinder. The coating container according to claim 1, wherein the capillary passage is formed by a gap provided between the outer cylinder and the inner cylinder, and a gap provided between the bottom wall of the housing cylinder and the inner cylinder.

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