Application container

Abstract

To provide a coating container which can impregnate a coating member with content liquid before use while suppressing the content liquid from leaking when using.SOLUTION: A coating container 1 includes a cylindrical inner plug member 20 on which a communicating hole 21 that communicates with the inside of a container body 2, and a discharge hole 22 that communicates with the communicating hole 21 and discharges content liquid are formed, a holder 30 on which a communicating path 40 is formed which is next to the inner plug member 20 and communicates with the inside of a storage part 31 and the inside of the container body 2, a coating member 50 that is located in the storage part 31 and protrudes upward from the holder 30, an energizing member 60, which energizes the holder 30 upward against the inner plug member 20, an over-cap 4 that is mounted on a mouth part 10 of the container body 2 and closes the discharge hole 22 in a state of restricting the holder 30 from moving up, a seal part that blocks communication between the outside and the communicating path 40 between the inner peripheral surface of the inner plug member 20 and the outer peripheral surface of the storage part 31 in a state where the over-cap 4 is separated from the mouth part 10 and a plug 35 blocks the communicating hole 21.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an application container. [Background technology]

[0002] Conventionally, there is known an applicator container for applying a liquid content such as a medicinal liquid to a target part such as the scalp or skin of a human body. For example, as shown in the following Patent Document 1, there is known an applicator container that includes a cylindrical inner plug member that is attached to the mouth of a container body and has a communication hole that communicates with the inside of the container body and a discharge hole that communicates with the communication hole and discharges the liquid content, an applicator member that is arranged inside the inner plug member so as to be movable toward the communication hole side with its tip protruding to the outside from the discharge hole, and a biasing member that biases the applicator member toward the discharge hole side, and the inner plug member has a valve seat formed in a portion located between the communication hole and the discharge hole against which a valve body formed in the applicator member abuts so as to be releasable from the communication hole side. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-34859 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional application container, when not in use, the communication between the communication hole and the discharge hole is blocked by the valve body and the valve seat, so in order to impregnate the application member with the liquid, it is necessary to remove the overcap and push the application member to open the valve. Therefore, it is difficult to impregnate the application member with the liquid before use. In addition, if the communication hole and the discharge hole are always in communication, there is a risk that the liquid will leak from the discharge hole during use.

[0005] The present invention has been made in consideration of the above circumstances, and aims to provide an application container that is capable of impregnating the application member with the content liquid before use while preventing the content liquid from leaking during use. [Means for solving the problem]

[0006] <1> The application container according to one aspect of the present invention includes a vertically extending cylindrical inner plug member that is attached to an opening of a container body and has a communication hole that communicates with the inside of the container body and a discharge hole that communicates with the communication hole and discharges a content liquid of the container body, a bottomed cylindrical storage section that is supported inside the inner plug member so as to be movable along the vertical direction, and a plug body that opens the communication hole from below the communication hole within the container body so as to be able to be closed, and a communication passage that communicates between the inside of the storage section and the inside of the container body is formed between the inner plug member and the application container. the container body having an inner peripheral surface of the inner stopper member and an outer peripheral surface of the storage portion, and a seal portion that blocks communication between the outside and the communicating passage that passes between the inner peripheral surface of the inner stopper member and the outer peripheral surface of the storage portion when the overcap is detached from the mouth portion and the stopper body blocks the communicating hole.

[0007] According to the present invention, when the overcap is attached to the mouth of the container body, the plug opens the communication hole of the inner plug member, so that the inside of the container body communicates with the inside of the container body through the communication passage. Therefore, by turning the application container upside down or shaking it with the overcap attached, the content liquid in the container body can be supplied to the storage part. At this time, the discharge hole of the inner plug member is blocked by the overcap, so that the content liquid can be impregnated into the application member before use while suppressing leakage of the content liquid. Furthermore, when the overcap is removed from the mouth of the container body, the restriction on the rise of the holder is released, and the plug rises to close the communication hole. This blocks communication between the inside of the container body and the inside of the storage section, preventing leakage of the liquid contents during use. Moreover, at this time, the seal section blocks communication between the communication passage between the outer circumferential surface of the storage section and the inner circumferential surface of the inner plug member and the outside. Therefore, for example, it is possible to prevent the liquid contents remaining in the communication passage from leaking from between the outer circumferential surface of the storage section and the inner circumferential surface of the inner plug member. As a result, it is possible to provide an application container that is capable of impregnating the application member with the content liquid before use while suppressing leakage of the content liquid during use.

[0008] <2> the above <1> In the applicator container related to the above, the sealing portion may include a first sealing convex portion provided on the inner surface of the middle plug member and a second sealing convex portion provided on the outer surface of the storage portion and positioned below the first sealing convex portion, and when the overcap is detached from the mouth portion and the plug body blocks the communicating hole, the first sealing convex portion and the second sealing convex portion abut against each other, thereby sealing between the inner surface of the middle plug member and the outer surface of the storage portion.

[0009] When the overcap is removed from the mouth and the plug body closes the communication hole, the first seal protrusion and the second seal protrusion come into contact with each other to seal between the inner peripheral surface of the inner plug member and the outer peripheral surface of the storage portion, thereby ensuring a seal between the inner peripheral surface of the inner plug member and the outer peripheral surface of the storage portion by the seal portion. Furthermore, when the first seal convex portion and the second seal convex portion do not abut when the overcap is attached to the mouth portion, and when the first seal convex portion and the second seal convex portion abut when the holder rises relative to the inner plug member after the overcap is removed from the mouth portion, it is possible to keep the sliding resistance between the holder and the inner plug member low, and the holder can move up and down relative to the inner plug member smoothly.

[0010] <3> the above <1> or <2> The application container according to the above may further include a first regulating protrusion provided on the inner peripheral surface of the middle plug member and a second regulating protrusion provided on the outer peripheral surface of the storage portion, and may be configured such that the first regulating protrusion and the second regulating protrusion abut in the vertical direction when the overcap is detached from the mouth portion, the plug body blocks the communication hole, and the sealing portion blocks communication between the communication passage and the outside.

[0011] If the inner plug member or the holder changes over time, the biasing force of the biasing member may cause the plug body to be excessively bitten into the inner plug member. It is feared that such a change over time may occur, for example, when the overcap is removed from the mouth of the container body, or when the intermediate product (applicator plug) in which the inner plug member and the holder are combined is maintained in a state in which it is not used as a part of the applicator container for a long period of time. Here, when the overcap is removed from the mouth portion, the plug body closes the communication hole, and the seal portion blocks communication between the communication passage and the outside, the first restricting protrusion and the second restricting protrusion come into contact in the vertical direction. Therefore, even if the plug body tries to bite excessively into the inner plug member due to the biasing force of the biasing member as described above, the first restricting protrusion and the second restricting protrusion engage with each other to restrict the rise of the holder. This prevents the plug body from biting excessively into the inner plug member. Effect of the Invention

[0012] According to the present invention, it is possible to provide an application container that is capable of impregnating an application member with a content liquid before use while suppressing leakage of the content liquid during use. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a cross-sectional view showing the application container of the first embodiment. [Diagram 2] 2 is an enlarged cross-sectional view of a main part in the cross-sectional view shown in FIG. 1. [Diagram 3] 3 is an enlarged cross-sectional view of a main part in the cross-sectional view shown in FIG. 2. [Figure 4]2 is a cross-sectional view of the application container in a state in which an overcap is removed from the state shown in FIG. 1. [Diagram 5] FIG. 5 is an enlarged cross-sectional view of a main part in the cross-sectional view shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, one embodiment of an application container according to the present invention will be described with reference to Figs.

[0015] 1 to 3, an applicator container 1 of this embodiment includes a cylindrical container body 2 with a bottom that contains a content liquid to be applied to an area to be applied, a cylindrical applicator stopper 3 attached to the inside of a mouth 10 of the container body 2, and a cylindrical overcap 4 with a top that is detachably attached to the mouth 10 of the container body 2 and covers the applicator stopper 3. The content liquid is not particularly limited, and examples thereof include liquids such as medicines and cosmetics to be applied to an area to be applied, such as the human body or skin.

[0016] The central axes of the container body 2, the applicator plug 3, and the overcap 4 are arranged on a common axis. In this embodiment, this common axis is called the container axis O, the direction along the container axis O is called the up-down direction, the overcap 4 side along the up-down direction is called the upside, and the opposite side (the container body 2 side) is called the downside. In addition, the direction that intersects with the container axis O in a plan view as seen from the container axis O is called the radial direction, and the direction going around the container axis O is called the circumferential direction.

[0017] The mouth 10 of the container body 2 is formed to have a smaller diameter than the other parts (shoulder, body and bottom) of the container body 2 other than the mouth 10. In the illustrated example, a male thread is formed on the outer circumferential surface of the mouth 10 of the container body 2.

[0018] The applicator plug 3 comprises a cylindrical inner plug member 20 which is attached to the mouth 10 of the container body 2 and has a communication hole 21 which opens downward and communicates with the inside of the container body 2, and a discharge hole 22 which communicates with the communication hole 21 and opens upward to discharge the content liquid, a holder 30 which is arranged inside the inner plug member 20, an applicator member 50 which is held by the holder 30 and protrudes upward from the holder 30, and a biasing member 60 which biases the holder 30 upward relative to the inner plug member 20.

[0019] The inner plug member 20 comprises an attachment tubular portion 23 attached to the mouth portion 10 of the container body 2, and a discharge tubular portion 26 in which a communication hole 21 and a discharge hole 22 are formed. The attachment tubular portion 23 comprises a fitting portion 24 formed in a cylindrical shape and tightly fitted inside the mouth portion 10 of the container body 2, and an annular flange portion 25 extending radially outward from the upper end portion of the fitting portion 24 and disposed on the upper end opening edge of the mouth portion 10. As a result, the attachment tubular portion 23 is attached to the mouth portion 10 in a state where it is inserted into the mouth portion 10.

[0020] The discharge tube portion 26 is connected to the mounting tube portion 23 and extends above and below from the mounting tube portion 23 . An upper end opening of the discharge tubular portion 26 is formed as a discharge hole 22. A lower end opening of the discharge tubular portion 26 is formed as a communication hole 21. The discharge tubular portion 26 is connected to the mounting tubular portion 23 at its middle portion in the up-down direction. The discharge tubular portion 26 includes a protruding tube 27 extending upward from the upper end of the fitting portion 24 of the mounting tubular portion 23, and a hanging tube 28 extending downward inside the mounting tubular portion 23 from the lower end of the protruding tube 27.

[0021] The outer diameter of the protruding tube 27 is smaller than the outer diameter of the flange portion 25 of the mounting tube portion 23. As shown in Figures 2 and 3, the protruding tube 27 has an inner circumferential surface provided with a first recess 27a and a first restricting protrusion 27b. The first recess 27a is disposed above the center in the vertical direction of the protruding tube 27. The first recess 27a is annular and extends over the entire circumference in the circumferential direction. The vertical size (width) of the first recess 27a is greater than the radial size (depth) of the first recess 27a. The portion of the protruding tube 27 located above the first recess 27a forms a first seal protrusion 27c.

[0022] The first seal protrusion 27c is disposed at the upper end of the protruding tube 27. The first seal protrusion 27c is annular and extends over the entire circumference in the circumferential direction. The vertical size of the first seal protrusion 27c is smaller than the vertical size of the first recess 27a. In a vertical cross-sectional view, the surface of the first seal protrusion 27c is linear and extends in the vertical direction. The first seal protrusion 27c extends with a constant inner diameter over the entire vertical direction. The inside of the first seal protrusion 27c (the inside of the upper end of the protruding tube 27) is the discharge hole 22. The first restricting protrusion 27b is disposed below the first recess 27a. The first restricting protrusion 27b is annular and extends over the entire circumference in the circumferential direction. In a vertical cross-sectional view along the up-down direction, the surface of the first restricting protrusion 27b is semicircular and protrudes radially inward.

[0023] As shown in FIG. 1, the hanging tube 28 is disposed with a gap therebetween in the radial direction with respect to the fitting portion 24. The lower end of the hanging tube 28 is located at the same position in the vertical direction as the lower end of the fitting portion 24. However, the position of the lower end of the hanging tube 28 is not particularly limited. The hanging tube 28 is formed so that its inner diameter is smaller than the inner diameter of the protruding tube 27. The inner circumferential surface of the hanging tube 28 extends with a constant inner diameter except for the lower end. The lower end of the hanging tube 28 is formed with an annular seat portion 29 that protrudes radially inward. The lower end of the seat portion 29 is formed with a communication hole 21.

[0024] The holder 30 has a bottomed cylindrical storage section 31 supported inside the inner plug member 20 so as to be movable in the up-down direction, and a plug body 35 that opens the communication hole 21 so as to be able to close it from below the communication hole 21. The storage section 31 is disposed coaxially with the container axis O. The storage section 31 has a peripheral wall 31a and a bottom wall 31b, and is surrounded by the protruding tube 27 of the discharge tube section 26. The upper end of the peripheral wall 31a is disposed at a position equivalent in the up-down direction to the upper end of the protruding tube 27. The upper end of the peripheral wall 31a is capable of protruding upward beyond the protruding tube 27.

[0025] On the inner peripheral surface of the peripheral wall 31a, a fitting rib 32 is formed, which protrudes radially inward and extends in the up-down direction. A plurality of fitting ribs 32 are formed at intervals in the circumferential direction. The outer diameter of the bottom wall 31b is larger than the inner diameter at the upper part of the hanging tube 28. On the upper surface of the bottom wall 31b, a pedestal protrusion 33 is formed, which protrudes upward. A plurality of pedestal protrusions 33 are formed at intervals in the circumferential direction on the outer periphery of the upper surface of the bottom wall 31b. The circumferential position of the pedestal protrusion 33 is the same as the circumferential position of the fitting rib 32. The radially outer end of the pedestal protrusion 33 is continuous with the lower end of the fitting rib 32.

[0026] The accommodation portion 31 is formed with a through hole 34. The through hole 34 is formed across the peripheral wall 31a and the bottom wall 31b. A plurality of the through holes 34 are formed at intervals in the circumferential direction. As a result, the inside of the accommodation portion 31 communicates with the outside of the accommodation portion 31 through the through hole 34. However, the formation location of the through hole 34 is not limited to the above-mentioned position. For example, the through hole 34 may be formed so as to penetrate the bottom wall 31b in the vertical direction, or may be formed so as to penetrate the peripheral wall 31a in the radial direction.

[0027] As shown in FIGS. 2 and 3, the outer circumferential surface of the accommodation portion 31 is provided with a second recess 31c, a second restricting protrusion 31e, and a second sealing protrusion 31d. The second recess 31c is annular and extends over the entire circumference in the circumferential direction. The vertical size of the second recess 31c is more than half the vertical size of the storage section 31. The distance from the upper edge of the second recess 31c to the upper edge of the storage section 31 is longer than the distance from the lower edge of the second recess 31c to the lower edge of the storage section 31. The lower edge of the second recess 31c is located above the upper edge of the flow hole 34. The vertical size (width) of the second recess 31c is larger than the radial size (depth) of the second recess 31c. The first restricting protrusion 27b is arranged in the second recess 31c so as to be movable in the vertical direction.

[0028] The second restricting protrusion 31e is provided in the accommodation portion 31 above the flow hole 34 and below the second recess 31c. The second restricting protrusion 31e is provided adjacent to the flow hole 34 in the up-down direction. The second restricting protrusion 31e (upper surface of the second restricting protrusion 31e) constitutes the side surface of the second recess 31c. The second restricting protrusion 31e is annular and extends over the entire circumference in the circumferential direction. The second restricting protrusion 31e (upper surface of the second restricting protrusion 31e) faces the first restricting protrusion 27b from below. The upper surface of the second restricting protrusion 31e is a flat surface extending in the radial direction. The lower surface of the second restricting protrusion 31e is a curved surface extending radially inward as it extends downward. Due to such a shape of the lower surface of the second restricting protrusion 31e, when the holder 30 is assembled with the inside plug member 20 from above, the second restricting protrusion 31e can easily ride over the first restricting protrusion 27b smoothly in the vertical direction.

[0029] The second seal protrusion 31d is disposed above the second recess 31c. The second seal protrusion 31d is annular and extends over the entire circumference in the circumferential direction. In a vertical cross-sectional view, the surface of the second seal protrusion 31d is semicircular and protrudes radially inward. The second seal protrusion 31d is disposed in the first recess 27a so as to be movable in the vertical direction. The outer diameter of the second seal protrusion 31d is larger than the inner diameter of the first seal protrusion 27c.

[0030] As shown in FIG. 1, the plug body 35 extends from the inside of the discharge tube portion 26 through the communication hole 21 to the bottom of the discharge tube portion 26. The plug body 35 includes a shaft portion 36 extending downward from the bottom wall 31b of the storage portion 31, and a plug body 37 supported by the lower end of the shaft portion 36. The shaft portion 36 extends in the vertical direction around the container axis O. The entire portion of the shaft portion 36 that faces the discharge tube portion 26 in the radial direction is formed on the inner circumferential surface of the discharge tube portion 26 so as to be spaced apart in the radial direction. The lower end of the shaft portion 36 is located inside the hanging tube 28. However, the lower end of the shaft portion 36 may protrude downward from the communication hole 21 of the hanging tube 28. A vertical rib 38 that protrudes radially outward and extends in the vertical direction is formed on the outer circumferential surface of the shaft portion 36. A plurality of vertical ribs 38 are formed at intervals in the circumferential direction. The upper ends of the vertical ribs 38 are connected to the lower surface of the bottom wall 31b of the storage portion 31. The vertical ribs 38 extend at intervals in the radial direction relative to the inner circumferential surface of the discharge tube portion 26. A protrusion 38a that protrudes radially outward is formed at the upper ends of the vertical ribs 38. The radially outer edge of the protrusion 38a is located radially inward relative to the inner surface of the hanging tube 28 and overlaps with the flow hole 34 in the radial direction.

[0031] The plug body 37 forms the lower part of the plug 35. The plug body 37 is formed as a body of revolution about the container axis O, and has an inverted V-shaped vertical cross section. The lower end of the plug body 37 is located below the lower end of the hanging tube 28, and is formed so that the outer diameter is larger than the inner diameter of the communication hole 21. The plug body 37 has an outer peripheral surface 37a that is continuous with the outer peripheral surface of the shaft portion 36 and extends in the circumferential direction. The outer peripheral surface 37a of the plug body 37 is formed as a whole in a roughly conical surface shape so that the lower end edge is located radially outward from the upper end edge. A first seal surface 37b that is in close contact with the inner peripheral surface or the lower end surface (lower end edge) of the communication hole 21 is formed on a part of the outer peripheral surface 37a in the vertical direction.

[0032] The plug body 35 is formed such that the entire portion radially facing the discharge tubular portion 26 is spaced radially from the inner circumferential surface of the discharge tubular portion 26. As a result, a communication passage 40 is formed between the holder 30 and the discharge tubular portion 26, with the flow hole 34 and the communication hole 21 at both ends, connecting the inside of the storage portion 31 to the inside of the container body 2. Then, the plug body 37 rises relative to the discharge tubular portion 26 and the first seal surface 37b comes into close contact with the inner circumferential surface or the lower end surface (lower end edge) of the communication hole 21, so that the plug body 37 closes the communication hole 21 from below, and communication between the inside of the storage portion 31 and the inside of the container body 2 through the communication passage 40 is blocked.

[0033] The application member 50 is formed in a cylindrical shape coaxial with the container axis O. The application member 50 is disposed in the storage section 31 so as to protrude upward from the storage section 31. The application member 50 is placed on the base protrusion 33. The application member 50 protrudes upward from the discharge hole 22. In the illustrated example, the upper end of the application member 50 is processed so that the cut surfaces 51 face each other in the radial direction, so that a ridge portion is disposed at the top. However, the shape of the upper end of the application member 50 is not limited to the illustrated example, and may be appropriately changed depending on the part to be applied. The application member 50 is formed of an impregnating material capable of impregnating the content liquid. Examples of the impregnating material include porous materials such as sponges, and fibrous bodies in which synthetic fibers are solidified with a resin solution and can be impregnated with the content liquid by utilizing capillary action.

[0034] The urging member 60 is a coil spring centered on the container axis O. The urging member 60 is disposed in a compressed state between the hanging tube 28 of the inside plug member 20 and the holder 30. The upper end of the urging member 60 is fitted onto the protruding portion 38a of the vertical rib 38 in a state of contacting the bottom wall 31b of the accommodation portion 31 of the holder 30 from below the bottom wall 31b. The lower end of the urging member 60 is supported from below the urging member 60 by the seat portion 29 of the hanging tube 28 of the inside plug member 20.

[0035] The overcap 4 comprises a top wall portion 70 formed in a circular shape when viewed from above, an outer tube portion 71 extending downward from the outer peripheral edge of the top wall portion 70, and an inner tube portion 72 extending downward from the top wall portion 70 and positioned inside the outer tube portion 71. The lower end of the outer tube portion 71 is disposed so as to surround the mouth portion 10 of the container body 2. The lower end of the outer tube portion 71 has a female thread on its inner circumferential surface and is screwed into the mouth portion 10. The inner diameter of the lower end of the outer tube portion 71 is larger than the inner diameter of the remainder of the outer tube portion 71 (the portion located above the lower end). The inner circumferential surface of the lower end of the outer tube portion 71 and the inner circumferential surface of the remainder are connected via an annular stepped surface 71a. The stepped surface 71a contacts the flange portion 25 of the mounting tube portion 23 of the inside plug member 20 from above the flange portion 25.

[0036] The lower end of the inner tube portion 72 is disposed so as to surround the upper end of the protruding tube 27. The inner diameter of the lower end of the inner tube portion 72 is larger than the inner diameter of the remaining portion of the inner tube portion 72 (the portion located above the lower end). The remaining portion of the inner tube portion 72 is disposed so as to surround the portion of the application member 50 that protrudes upward from the discharge tube portion 26. The inner peripheral surface of the lower end of the inner tube portion 72 and the inner peripheral surface of the remaining portion are connected via a second seal surface 72a, which is an annular stepped surface. The second seal surface 72a extends upward and radially inward from the lower end of the inner tube portion 72 toward the remaining portion. The second seal surface 72a is an inclined surface. The second seal surface 72a is in close contact with the upper edge of the discharge tube portion 26 over the entire circumference. As a result, the inner tube portion 72 and the top wall portion 70 close the discharge hole 22. Specifically, the outer edge of the upper end edge of the discharge tube portion 26 abuts against the second seal surface 72a. In this embodiment, the outer edge of the upper end edge of the discharge tube portion 26 is a curved surface.

[0037] A restricting rib 75 is formed on the inner peripheral surface of the inner tube portion 72, protruding radially inward and extending in the up-down direction. The restricting rib 75 is provided on the remaining portion of the inner tube portion 72. The upper end edge of the restricting rib 75 is continuous with the top wall portion 70. A plurality of restricting ribs 75 are formed at intervals in the circumferential direction. The restricting rib 75 is formed so as to be spaced apart from the application member 50. The lower end edge of the restricting rib 75 is spaced apart from the discharge tube portion 26. A part of the lower end edge of the restricting rib 75 protrudes downward and contacts the upper end edge of the accommodation portion 31 of the holder 30 from above the accommodation portion 31. As a result, the overcap 4 restricts the rise of the holder 30, which is in an upwardly biased state by the biasing member 60.

[0038] Next, the operation of the above-mentioned application container 1 will be described.

[0039] 1 to 3, in a state where the overcap 4 is attached to the mouth 10 of the container body 2 (hereinafter also referred to as the initial state), the plug 35 of the holder 30 opens the communication hole 21 of the inner plug member 20, so that the inside of the storage section 31 and the inside of the container body 2 are in communication with each other through the communication passage 40. Therefore, by inverting or shaking the application container 1 with the overcap 4 attached, the content liquid in the container body 2 can be supplied to the storage section 31. Since the discharge hole 22 of the inner plug member 20 is blocked by the inner cylindrical portion 72 of the overcap 4, the content liquid can be impregnated into the application member 50 before use while suppressing leakage of the content liquid. At this time, communication passage 40 and the outside of applicator plug 3 (the inside of inner cylinder portion 72) communicate with each other through the gap between the inner circumferential surface of protruding cylinder 27 and the outer circumferential surface of containing portion 31 (discharge hole 22).

[0040] Furthermore, as shown in Figs. 4 and 5, when the overcap 4 is removed from the mouth 10 of the container body 2, the restriction of the rise of the holder 30 by the restricting rib 75 is released, so that the plug 35 rises and closes the communication hole 21. This blocks communication between the inside of the container body 2 and the inside of the container body 2, and prevents the content liquid from leaking during use. Moreover, at this time, the first seal protrusion 27c and the second seal protrusion 31d come into contact with each other, sealing the gap between the inner peripheral surface of the middle plug member 20 and the outer peripheral surface of the container body 31. That is, the second seal protrusion 31d, which was located in the first recess 27a in the initial state, moves upward from the first recess 27a and is positioned radially inward relative to the first seal protrusion 27c. At this time, for example, the surface of the first seal protrusion 27c and the surface of the second seal protrusion 31d are pressed against each other, sealing the gap between the inner peripheral surface of the middle plug member 20 and the outer peripheral surface of the container body 31. The first seal protrusion 27c and the second seal protrusion 31d function as a seal portion 80. When the overcap 4 is detached from the mouth portion 10 and the plug body 35 closes the communication hole 21, the seal portion 80 blocks communication between the outside and the communication passage 40 passing between the outer circumferential surface of the storage portion 31 and the inner circumferential surface of the inner plug member 20 (discharge hole 22). As a result, for example, leakage of the content liquid remaining in the communication passage 40 from between the outer circumferential surface of the storage portion 31 and the inner circumferential surface of the inner plug member 20 (discharge hole 22) can also be suppressed. As described above, it is possible to provide an application container 1 that is capable of impregnating the application member 50 with the content liquid before use while suppressing leakage of the content liquid during use.

[0041] 1 to 3, the discharge hole 22 is blocked when the overcap 4 is attached, and as shown in Fig. 4 and Fig. 5, when the overcap 4 is removed, the discharge hole 22 is opened and the holder 30 starts to rise, and then the communication hole 21 is blocked. Therefore, when the overcap 4 is removed, the internal pressure of the container body 2 is temporarily released, and the application container 1 can be made usable. Therefore, leakage of the content liquid during use due to an increase in the internal pressure of the container body 2 can be suppressed.

[0042] During use, the seal portion 80 can block communication between the communication passage 40 passing between the outer circumferential surface of the storage portion 31 and the inner circumferential surface of the inside plug member 20 and the outside. Here, as a configuration for blocking communication between the outside and the communication passage 40 passing between the outer circumferential surface of the storage section 31 and the inner circumferential surface of the inner plug member 20 during use without using the seal section 80, there is a configuration in which the outer circumferential surface of the storage section 31 and the inner circumferential surface of the inner plug member 20 are brought into sliding contact with each other with a lubricant applied between them. In this configuration, there is a risk that the lubricant may cause restrictions on the content liquid. In contrast, in this embodiment, the communication passage 40 passing between the outer circumferential surface of the storage portion 31 and the inner circumferential surface of the inside plug member 20 and the outside can be blocked by the seal portion 80. This eliminates the need for the lubricant described above, and increases the freedom of the content liquid.

[0043] If the inner plug member 20 or the holder 30 changes over time, or if the holder 30 rises forcefully, the biasing force of the biasing member 60 may cause the plug body 35 to bite excessively into the inner plug member 20. Here, as shown in Figs. 4 and 5, when the overcap 4 is removed from the mouth portion 10, the plug 35 closes the communication hole 21, and the seal portion 80 blocks communication between the communication passage 40 and the outside, the first restricting protrusion 27b and the second restricting protrusion 31e come into contact with each other in the vertical direction (note that the first restricting protrusion 27b and the second restricting protrusion 31e come into contact with each other in the vertical direction includes a state in which the first restricting protrusion 27b and the second restricting protrusion 31e come into contact with each other in a state in which the plug 35 is bitten into the inner plug member 20 by a certain amount, although they do not come into contact with each other during normal use). Therefore, as described above, even if the plug 35 tries to excessively bite into the inner plug member 20 due to the biasing force of the biasing member 60, the first restricting protrusion 27b and the second restricting protrusion 31e are engaged with each other, so that the rise of the holder 30 can be restricted. This restricts the plug 35 from being excessively bitten into the inner plug member 20.

[0044] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0045] For example, in the above embodiment, the overcap 4 directly contacts the holder 30 to regulate the ascent of the holder 30, but this is not limited to this, and the overcap may also regulate the ascent of the holder by contacting the application member and pressing the application member downward.

[0046] Furthermore, in the above embodiment, the application member 50 protrudes upward from the discharge hole 22 when the overcap 4 is attached to the mouth portion 10 of the container body 2, but it is sufficient that the application member 50 protrudes upward from the discharge hole at least when the overcap is removed. In the above embodiment, the overcap 4 is a double-tube shape, but it may be a multi-stage tube whose diameter increases stepwise from top to bottom. In this case, for example, the step between the upper and lower tube parts may function as the second sealing surface 72a.

[0047] In addition, within the scope of the invention, the components in the above-described embodiments may be replaced with well-known components, and the above-described modified examples may be combined as appropriate. [Explanation of symbols]

[0048] 1 Application container 2 Container body 4. Overcap 10 Mouth 20 Inner plug member 21 Communication hole 22 Discharge hole 27b First restriction convex part 27c First seal protrusion 30 Holder 31 Storage unit 31d Second seal protrusion 31e Second restriction convex part 35 Plug body 40 communication path 50 Coating material 60 biasing member 80 Seal part

Claims

1. a cylindrical inner plug member that is attached to the mouth of the container body and extends in the vertical direction and has a communication hole that communicates with the inside of the container body and a discharge hole that communicates with the communication hole and discharges the content liquid of the container body; a holder including a bottomed cylindrical container supported inside the inner plug member so as to be movable in a vertical direction, and a plug body that opens the communication hole in the container body so as to be able to close the communication hole from below, and a communication passage that communicates between the container and the inner plug member; an application member disposed in the housing and protruding upward from the holder; a biasing member that biases the holder upward relative to the inside plug member; an overcap that is attached to a mouth portion of the container body and closes the discharge hole while restricting the rise of the holder; a seal portion that blocks communication between the communication passage passing between an inner peripheral surface of the middle plug member and an outer peripheral surface of the housing portion and the outside when the overcap is detached from the mouth portion and the plug body closes the communication hole; An application container comprising:

2. The seal portion is A first seal protrusion provided on an inner circumferential surface of the inside plug member; a second seal protrusion provided on an outer circumferential surface of the housing portion and positioned below the first seal protrusion, 2. The applicator container according to claim 1, wherein when the overcap is detached from the mouth portion and the plug body blocks the communicating hole, the first sealing protrusion and the second sealing protrusion abut against each other, thereby sealing between the inner surface of the middle plug member and the outer surface of the storage portion.

3. A first restricting protrusion provided on an inner peripheral surface of the inside plug member; A second restricting protrusion is provided on an outer circumferential surface of the housing portion, The application container according to claim 1 or 2, wherein the first regulating protrusion and the second regulating protrusion abut in the vertical direction when the overcap is detached from the mouth portion, the plug body blocks the communication hole, and the sealing portion blocks communication between the communication passage and the outside.

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