Application container

Abstract

To suppress the release of a seal between a head body and a support cylinder during the time of application.SOLUTION: An application container according to the present invention is configured such that: a top part 19 of a measuring cylinder member 7 is formed in a cylindrical shape extending in the vertical direction; the inside of the top part serves as a second communication hole 8; an upper end opening edge 19a of the top part abuts against the inner surface of a fitting cylinder 42 in the vertical direction at the application position; an upper end opening edge 42c of the fitting cylinder abuts against the inner surface of a head body 45 in the vertical direction; and at least parts of the radial direction in the abutting portion between the inner surface of the fitting cylinder and the upper end opening edge of the top part and in the abutting portion between the upper end opening edge of the fitting cylinder and the inner surface of the head body at the application position are positioned on the same straight line extending in the vertical direction when viewed in vertical cross section along the vertical direction.SELECTED DRAWING: Figure 1

Description

Technical Field

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

Background Art

[0002] Conventionally, an application container for applying a content such as a chemical solution to an applied part such as the scalp of a human body has been known. For example, in Patent Document 1 below, it includes a container body for storing the content and an application structure attached to the mouth of the container body. The application structure is formed of an elastically deformable soft material, and has a top wall portion with a discharge hole for the content formed thereon, and a top wall portion. A support cylinder formed of a material harder than the soft material and fitted into the head body is disclosed. When using this application container, the content is discharged from the discharge hole by pressing the top wall portion of the head body against the skin surface of the body and applied to the applied part.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, there was a risk that the seal between the head body and the support cylinder would be released due to the elastic deformation of the head body during application.

[0005] The present invention provides an application container capable of suppressing the release of the seal between the head body and the support cylinder during application.

Means for Solving the Problems

[0006] The coating container according to one aspect of the present invention includes a container body that houses a content to be coated on a coated portion, and a coating structure attached to the mouth of the container body. The coating structure includes a middle plug member attached to the mouth of the container body and having a first communication hole formed therein that communicates with the inside of the container body, and a metering cylinder member that forms a metering chamber communicating with the inside of the container body through the first communication hole between the middle plug member and has a second communication hole formed at the top that communicates with the metering chamber, and a coating plug provided in the metering chamber. The coating plug is movable in the vertical direction between a metering position that blocks the communication between the second communication hole and the metering chamber and allows the metering chamber to communicate with the first communication hole, and a coating position that is located below the metering position, blocks the communication between the metering chamber and the first communication hole, and allows the second communication hole to communicate with the metering chamber. The coating structure is formed of an elastically deformable soft material and includes a capped cylindrical head body having a discharge hole for the content formed in the top wall portion, and a support cylinder formed of a material harder than the soft material and fitted inside the head body. The support cylinder is provided with an attachment portion attached to the coating plug and a fitting cylinder fitted inside the head body, and a third communication hole is formed that communicates with the inside of the fitting cylinder and communicates with the metering chamber through the second communication hole at the coating position. The top of the metering cylinder member is formed in a cylindrical shape extending in the vertical direction, the inside of the top is the second communication hole, the upper end opening edge of the top abuts against the inner surface of the fitting cylinder in the vertical direction at the coating position, the upper end opening edge of the fitting cylinder abuts against the inner surface of the head body in the vertical direction, and at least a part of the radial direction at the contact portion between the inner surface of the fitting cylinder and the upper end opening edge of the top and at the contact portion between the upper end opening edge of the fitting cylinder and the inner surface of the head body at the coating position is located on the same straight line extending in the vertical direction in a vertical cross-sectional view along the vertical direction.

[0007] The upper end opening edge of the top of the graduated cylinder member abuts against the inner surface of the fitting cylinder of the support cylinder in the vertical direction at the application position, and the upper end opening edge of the fitting cylinder abuts against the inner surface of the head body in the vertical direction. At least a part of the radial direction at each of the former contact part and the latter contact part is located on the same straight line extending in the vertical direction in a vertical cross-sectional view along the vertical direction. Therefore, when the user presses the top wall portion of the head body against an applied portion such as the skin of the body, the force applied to the top wall portion of the head body is directly transmitted vertically from the contact portion between the inner surface of the head body and the upper end opening edge of the fitting cylinder toward the contact portion between the inner surface of the fitting cylinder and the upper end opening edge of the top at the application position. Thus, it becomes possible to prevent the head body from being deformed unevenly, ensure the sealing property between the inner surface of the head body and the upper end opening edge of the fitting cylinder, and suppress the release of the seal between the head body and the support cylinder during application. Furthermore, since it becomes possible to prevent the head body from being deformed unevenly, it becomes possible to easily elastically deform the top wall portion of the head body stably in the vertical direction, and for example, improve the massage effect.

[0008] On the inner surface of the head body, a locking groove that is recessed outward in the radial direction and extends over the entire circumference is formed. On the outer peripheral surface of the fitting cylinder, a locking protrusion that protrudes outward in the radial direction and extends over the entire circumference is formed. The locking protrusion is fitted into the locking groove, and the locking groove and the locking protrusion may be located below the upper end opening edge of the fitting cylinder.

[0009] Since the locking protrusion formed on the outer peripheral surface of the fitting cylinder is fitted into the locking groove formed on the inner surface of the head body, it becomes possible to strongly fit the fitting cylinder into the head body. In combination with the fact that the locking groove and the locking protrusion are located below the upper end opening edge of the fitting cylinder, it becomes possible to suppress the disengagement of the engagement between the locking groove and the locking protrusion due to the force applied to the top wall portion of the head body during application, and reliably ensure the sealing property between the inner surface of the head body and the upper end opening edge of the fitting cylinder.

[0010] The fitting cylinder is externally mounted on the top of the measuring cylinder member so as to be vertically slidable, and may be in radial contact with the outer peripheral surface of the top at the measuring position.

[0011] Since the fitting cylinder is externally mounted on the top of the measuring cylinder member so as to be vertically slidable and is in radial contact with the outer peripheral surface of the top at the measuring position, even if the support cylinder is positioned at the measuring position with the contents remaining adhered to the inside of the head body and the fitting cylinder respectively, leakage of the contents from between the top and the fitting cylinder can be suppressed.

Advantages of the Invention

[0012] According to one aspect of the present invention, it is possible to suppress the release of the seal between the head body and the support cylinder during application.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Modes for Carrying Out the Invention

[0014] Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the application container 1 includes a container body 2, an application structure 39, and a cap body 10. The container body 2 is formed in a bottomed cylindrical shape, and the cap body 10 is formed in a toped cylindrical shape. The central axes of the container body 2 and the cap body 10 are arranged on a common axis. Hereinafter, this common axis is referred to as the container axis O, and among the directions along the container axis O, the bottom side of the container body 2 (the lower side in FIG. 1) is the lower side, the mouth portion 3 side of the container body 2 (the upper side in FIG. 1) is the upper side, and the direction along the container axis O is referred to as the vertical direction. The direction intersecting the container axis O as viewed from the vertical direction is referred to as the radial direction, and the direction of orbiting around the container axis O is referred to as the circumferential direction.

[0015] Inside the container body 2, the content to be applied to the application part is accommodated. Examples of the content include a hair growth agent, a chemical solution, etc. that are applied to the application part such as the user's scalp or skin. The mouth part 3 of the container body 2 has a smaller diameter than the part other than the mouth part 3 of the container body 2. A male screw part is formed on the outer peripheral surface of the mouth part 3. The male screw part may be, for example, a double-threaded screw. The outer diameter of the upper end part of the mouth part 3, which is located above the male screw part, is smaller than the outer diameter of the part located below the upper end part.

[0016] The application structure 39 is attached to the mouth part 3 of the container body 2. The application structure 39 includes a middle plug member 4, a measuring cylinder member 7, an application plug 9, a support cylinder 40, and a head body 45.

[0017] The middle plug member 4 is attached to the mouth part 3 of the container body 2 and has a first communication hole 5 that communicates with the inside of the container body 2. The middle plug member 4 includes a mounting cylinder 13 fitted into the mouth part 3 of the container body 2, a bottomed cylindrical cylinder 12 provided inside the mounting cylinder 13, and a support 11 protruding upward from the bottom wall of the cylinder 12. The mounting cylinder 13, the cylinder 12, and the support 11 are arranged coaxially with the container axis O and are integrally formed. The middle plug member 4 is formed of a hard resin material (for example, polypropylene, etc.).

[0018] The first communication hole 5 is formed in the cylinder 12, and the inside of the cylinder 12 communicates with the inside of the container body 2 through the first communication hole 5. The first communication hole 5 is integrally formed at the outer peripheral edge of the bottom wall of the cylinder 12 and the lower end of the peripheral wall of the cylinder 12. A plurality of first communication holes 5 are provided at intervals in the circumferential direction. The upper end part of the mounting cylinder 13 protrudes above the mouth part 3 of the container body 2 and is arranged at the upper end opening edge of the mouth part 3. The upper end part of the support 11 is located above the upper end parts of the mounting cylinder 13 and the cylinder 12.

[0019] The measuring cylinder member 7 forms a measuring chamber 6 that communicates with the inside of the container body 2 through a first communication hole 5 between the measuring cylinder member 7 and the middle plug member 4. The measuring cylinder member 7 is formed of a hard resin material (such as polypropylene or the like). The measuring cylinder member 7 includes a base cylinder portion 18 attached to the mouth portion 3 of the container body 2, a tubular top portion 19 that extends in the vertical direction and is located above the base cylinder portion 18 and has a second communication hole 8 inside, and a connecting cylinder portion 20 that is located between the base cylinder portion 18 and the top portion 19 and connects the base cylinder portion 18 and the top portion 19. In the illustrated example, the measuring cylinder member 7 gradually reduces in diameter in the order of the base cylinder portion 18, the connecting cylinder portion 20, and the top portion 19 from the lower side to the upper side.

[0020] The base cylinder portion 18 is externally fitted to the upper end portion of the mouth portion 3 of the container body 2 and the upper end portion of the mounting cylinder 13 of the middle plug member 4. The measuring chamber 6 is defined by at least the connecting cylinder portion 20 of the measuring cylinder member 7 and the connecting portion between the mounting cylinder 13 and the cylinder barrel 12 in the middle plug member 4. A protective cylinder 21 that extends upward is formed in the connecting cylinder portion 20. The upper end portion of the protective cylinder 21 is located below the upper end portion of the top portion 19.

[0021] The application plug 9 is provided in the measuring chamber 6. The application plug 9 blocks the communication between the second communication hole 8 and the measuring chamber 6, and is located at a measuring position (for example, the position shown in FIG. 2) that communicates the measuring chamber 6 and the first communication hole 5, and is located below the measuring position. It is disposed so as to be movable in the vertical direction between a coating position (for example, the position shown in FIG. 1) that blocks the communication between the measuring chamber 6 and the first communication hole 5 and communicates the second communication hole 8 and the measuring chamber 6. Here, the term "communicate" includes both the meanings of "communicate" and "be in a state where communication is possible".

[0022] The application plug 9 includes a seal cylinder 24 disposed in the measuring cylinder member 7 and a capped cylindrical outer insertion cylinder 25 that is connected to the middle portion in the vertical direction of the seal cylinder 24 and is surrounded by the seal cylinder 24 from the outside in the radial direction. The application plug 9 is formed of a hard resin material (such as high-density polyethylene or the like). The seal cylinder 24 and the externally inserted cylinder 25 are arranged coaxially with the container axis O and are integrally formed.

[0023] When the application plug 9 is in the metering position, the upper end portion of the seal cylinder 24 is closely and slidably fitted up and down in the second communication hole 8, and when the application plug 9 is in the application position, it disengages downward from the second communication hole 8. When the application plug 9 is in the application position, the lower end portion of the seal cylinder 24 is closely and slidably fitted up and down to a portion of the inner wall of the cylinder barrel 12 that is located above the first communication hole 5, and when the application plug 9 is in the metering position, it disengages upward from the inner wall of the cylinder barrel 12. The upper end portion of the seal cylinder 24 has an increasing diameter upward, and the lower end portion of the seal cylinder 24 has an increasing diameter downward.

[0024] A stopper projection 24a that protrudes radially outward is formed on the seal cylinder 24. The stopper projection 24a is provided at an intermediate portion in the vertical direction on the outer peripheral surface of the seal cylinder 24. The stopper projection 24a is located slightly below the connecting portion between the seal cylinder 24 and the externally inserted cylinder 25. The stopper projection 24a extends continuously over the entire circumferential length.

[0025] When the application plug 9 is in the metering position, the stopper projection 24a abuts against the opening peripheral edge of the second communication hole 8 in the metering cylinder member 7 from below. In the illustrated example, when the application plug 9 is in the metering position, the stopper projection 24a abuts against the connecting portion between the top portion 19 and the connecting cylinder portion 20 in the metering cylinder member 7 from below. In this way, with the application plug 9 in the metering position, the stopper projection 24a of the application plug 9 abuts against the opening peripheral edge of the second communication hole 8 in the metering cylinder member 7 from below, so that even if an external force in the direction of moving the application plug 9 upward with respect to the metering chamber 6 acts, the application plug 9 is restricted from moving further upward.

[0026] The outer insertion cylinder 25 is externally inserted into the support 11 of the middle plug member 4 so as to be relatively movable in the vertical direction. In the illustrated example, the lower end portion of the outer insertion cylinder 25 is located below the lower end portion of the seal cylinder 24. The upper end portion of the outer insertion cylinder 25 is located above the upper end portion of the seal cylinder 24. The upper end portion of the outer insertion cylinder 25 is located below the upper opening edge of the top portion 19 of the measuring cylinder member 7 and is located within the top portion 19 when the application plug 9 is in the application position. The lower opening edge of the outer insertion cylinder 25 is spaced upward from the upper surface of the bottom wall of the cylinder barrel 12 when the application plug 9 is in the application position. At this time, a vertical gap is provided between the upper end surface of the support 11 and the inner surface of the outer insertion cylinder 25.

[0027] The support cylinder 40 is provided with a mounting portion 41 and a fitting cylinder 42, and a third communication hole 43 is formed therein. The support cylinder 40 is formed of a hard resin material (such as high-density polyethylene or the like).

[0028] The mounting portion 41 is formed in a cylindrical shape and is externally fitted to the upper portion of the outer insertion cylinder 25. Thereby, the support cylinder 40 is attached to the application plug 9. In the illustrated example, the mounting portion 41 is undercut and fitted to the upper portion of the outer insertion cylinder 25. The mounting portion 41 is inserted into the second communication hole 8 with a radial gap provided between it and the inner peripheral surface of the second communication hole 8. The upper end portion of the mounting portion 41 is located above the upper end portion of the outer insertion cylinder 25. Note that the support cylinder 40 may be integrally formed with the application plug 9.

[0029] The fitting cylinder 42 is provided outside the measuring cylinder member 7. The fitting cylinder 42 is formed in a multi-stage cylindrical shape in which the inner diameter and the outer diameter decrease as it goes upward. The upper portion of the fitting cylinder 42 is located above the measuring cylinder member 7 and the mounting portion 41. The upper opening edge 42c of the fitting cylinder 42 is in contact with the inner surface of the head body 45 in the vertical direction. The lower part of the fitting cylinder 42 is externally fitted to the top 19 of the measuring cylinder member 7 so as to be vertically slidable. The lower part of the fitting cylinder 42 is always in radial contact with the outer peripheral surface of the top 19 over the entire circumference regardless of whether the application plug 9 is in the application position or the measuring position. Thereby, the fitting cylinder 42 always blocks the communication between the second communication hole 8 and the outside of the application structure 39 regardless of whether the application plug 9 is in the application position or the measuring position. On either the inner peripheral surface of the lower part of the fitting cylinder 42 or the outer peripheral surface of the top 19 of the measuring cylinder member 7, a sealing protrusion is formed to seal the space between the inner peripheral surface of the lower part of the fitting cylinder 42 and the outer peripheral surface of the top 19 by coming into contact with the other. The lower part of the fitting cylinder 42 is located above the lower end part of the attachment part 41. The middle part of the fitting cylinder 42 in the vertical direction is formed in an annular plate shape with the front and back surfaces facing the vertical direction and arranged coaxially with the container axis O. The middle part of the fitting cylinder 42 in the vertical direction is connected to the upper end part of the attachment part 41 so as to straddle the upper end opening edge 19a of the top 19 in the radial direction. When the application plug 9 is in the application position, the inner surface facing downward among the middle part of the fitting cylinder 42 in the vertical direction is in vertical contact with the upper end opening edge 19a of the top 19. Thereby, the application plug 9 located in the application position is restricted from moving further downward. The portion of the inner surface of the middle part of the fitting cylinder 42 in the vertical direction where the upper end opening edge 19a of the top 19 abuts is a flat surface extending in the radial direction and the circumferential direction. The inner peripheral edge part of the inner surface of the middle part of the fitting cylinder 42 in the vertical direction is located radially inside the upper end opening edge 19a of the top 19 and extends downward as it goes radially inward. The lower end part 42d of the fitting cylinder 42 protrudes downward from the peripheral wall part of the head body 45. A flange part protruding outward in the radial direction is formed at the lower end part 42d of the fitting cylinder 42, and the upper surface thereof is in contact with or close to the lower end opening edge of the peripheral wall part of the head body 45.

[0030] The lower end portion 42d of the fitting cylinder 42 and the lower end portion of the peripheral wall portion of the head body 45 are surrounded from the outside in the radial direction by the protective cylinder 21 of the measuring cylinder member 7 when the application plug 9 is in the application position. Thus, when the top wall portion of the head body 45 is pressed against an applied portion such as the skin of the body, etc., and the application plug 9 is positioned from the measuring position to the application position, during or after applying the content to the applied portion, it is impossible to pinch the lower end portion 42d of the fitting cylinder 42 or the lower end portion of the peripheral wall portion of the head body 45 and pull up the application plug 9 to the measuring position. The inner peripheral surface of the protective cylinder 21 is separated from the lower end portion 42d of the fitting cylinder 42 and the lower end portion of the peripheral wall portion of the head body 45 in the radial direction. When the application plug 9 is in the measuring position, as shown in FIG. 2, the lower end portion 42d of the fitting cylinder 42 and the lower end portion of the peripheral wall portion of the head body 45 are located above the protective cylinder 21.

[0031] The third communication hole 43 is formed at the upper end portion of the attachment portion 41 and communicates with the inside of the upper portion of the fitting cylinder 42. The third communication hole 43 penetrates the attachment portion 41 in the radial direction and opens at the upper end opening edge of the attachment portion 41. The third communication hole 43 is located in the second communication hole 8 when the application plug 9 is in the application position and communicates with the measuring chamber 6 through the second communication hole 8. Here, the outer peripheral surface of the attachment portion 41 faces the inner peripheral surface of the second communication hole 8 with a gap in the radial direction. Thus, when the application plug 9 is in the application position, the content in the measuring chamber 6 flows through this gap and further through the third communication hole 43 into the upper portion of the fitting cylinder 42.

[0032] The head body 45 is formed in a toped cylindrical shape with an elastically deformable soft material. Examples of the soft material include elastically deformable rubber-like materials such as nitrile rubber, butyl rubber, silicone rubber, and elastomer, and elastically deformable resin materials such as low-density polyethylene. The head body 45 is formed of a material softer than the material forming the support cylinder 40. When the top wall portion of the head body 45 is pressed against the applied portion, the support cylinder 40 does not deform, and the top wall portion of the head body 45 elastically deforms.

[0033] Inside the head body 45, the fitting cylinder 42 of the support cylinder 40 is fitted. The top wall portion of the head body 45 closes the upper end opening 42b of the fitting cylinder 42. On the top wall portion of the head body 45, a discharge hole 46 for the content is formed. The discharge hole 46 penetrates the top wall portion of the head body 45 in the vertical direction. The discharge hole 46 opens toward the upper end opening 42b of the fitting cylinder 42. The top wall portion of the head body 45 is curved so as to bulge upward.

[0034] The upper end opening edge 42c of the fitting cylinder 42 is in close contact with the outer peripheral edge portion on the lower surface of the top wall portion of the head body 45. The outer peripheral edge portion on the lower surface of the top wall portion of the head body 45 is a flat surface extending in the radial direction and the circumferential direction. At least a part of the radial direction in the contact portion between the upper end opening edge 42c of the fitting cylinder 42 and the inner surface of the head body 45, and the contact portion between the inner surface of the fitting cylinder 42 and the upper end opening edge 19a of the top portion 19 at the application position are located on the same straight line extending in the vertical direction in a longitudinal sectional view along the vertical direction. In the illustrated example, the radial sizes in the former contact portion and the latter contact portion are the same as each other. The entire radial direction in the former contact portion and the latter contact portion are located on the same straight line extending in the vertical direction in a longitudinal sectional view along the vertical direction. Note that the radial sizes in the former contact portion and the latter contact portion may be made different from each other.

[0035] On the inner surface of the head body 45, a locking groove 47 that is recessed toward the outer side in the radial direction and extends over the entire circumference is formed, and on the outer peripheral surface of the fitting cylinder 42, a locking protrusion 48 that fits into the locking groove 47 is formed. The locking protrusion 48 protrudes outward in the radial direction from the outer peripheral surface of the intermediate portion in the vertical direction of the fitting cylinder 42 and extends over the entire circumference. The locking groove 47 and the locking protrusion 48 are located below the upper end opening edge 42c of the fitting cylinder 42.

[0036] The cap body 10 is detachably attached to the container body 2 or the coating structure 39 and covers the head body 45. The cap body 10 is formed in a toped cylindrical shape having a top wall 28 and a peripheral wall 29.

[0037] An internal thread portion that is screwed onto the male thread portion of the mouth portion 3 is formed on the inner peripheral surface of the peripheral wall 29. The female thread portion may be, for example, a double thread. Instead of forming a male thread portion on the mouth portion 3, a male thread portion may be formed on the outer peripheral surface of, for example, the base cylinder portion 18 of the measuring cylinder member 7 among the coating structures 39, and the female thread portion of the peripheral wall 29 may be screwed onto this male thread portion. Instead of the configuration in which the cap body 10 is detachably screwed onto the mouth portion 3 or the coating structure 39, for example, the smooth outer peripheral surface of the mouth portion 3 or the coating structure 39 is detachably fitted to the smooth inner peripheral surface of the cap body 10, or the cap body 10 may be appropriately changed to a configuration in which it is detachably undercut-fitted to the mouth portion 3 or the coating structure 39.

[0038] The cap body 10 includes a lifting cylinder 31 that surrounds the lower end portion 42d of the fitting cylinder 42 from the outside in the radial direction. The lifting cylinder 31 is disposed coaxially with the container axis O and protrudes downward from the top wall 28 of the cap body 10. The lifting cylinder 31 is inserted into the gap between the inner peripheral surface of the protective cylinder 21 and the outer peripheral surfaces of the lower end portion 42d of the fitting cylinder 42 and the lower end portion of the peripheral wall portion of the head body 45, respectively. The lower end portion of the lifting cylinder 31 is undercut-fitted to the flange portion formed on the lower end portion 42d of the fitting cylinder 42. Thereby, as the cap body 10 moves upward with respect to the mouth portion 3 and the measuring cylinder member 7, the support cylinder 40, the head body 45, and the coating plug 9 are lifted, and the coating plug 9 moves to the measuring position.

[0039] Hereinafter, the operation of the coating container 1 of the present embodiment will be described.

[0040] When applying the contents in the container body 2 to the application part, first, the cap body 10 is moved upward to disengage it from the mouth part 3 of the container body 2, and the head body 45 is exposed outside the container. Here, when the cap body 10 is disengaged, since the lower end part of the pull-up cylinder 31 is undercut and fitted to the flange part formed at the lower end part 42d of the fitting cylinder 42 of the support cylinder 40, as the cap body 10 ascends, the support cylinder 40, the head body 45, and the application plug 9 are all pulled up. As shown in FIG. 2, the application plug 9 moves to the metering position.

[0041] At this time, when the male screw part of the mouth part 3 and the female screw part of the cap body 10 are double-threaded, compared with the configuration of single-threaded, the lead of the screw becomes larger. For this reason, the displacement amount in the vertical direction with respect to the rotational amount in the circumferential direction of the cap body 10 can be increased. Thereby, the support cylinder 40, the head body 45, and the application plug 9 can be quickly moved upward, and the cap body 10 can be quickly disengaged from the mouth part 3 of the container body 2.

[0042] Even when the application plug 9 ascends to the metering position, the lower part of the fitting cylinder 42 is kept in a state of being in radial contact with the outer peripheral surface of the top part 19 of the metering cylinder member 7 over the entire circumference, and the space between the inner peripheral surface of the lower part of the fitting cylinder 42 and the outer peripheral surface of the top part 19 is sealed. Therefore, even if the contents remain due to adhesion inside the head body 45 and the fitting cylinder 42 respectively, the contents will not leak out from between the inner peripheral surface of the lower part of the fitting cylinder 42 and the outer peripheral surface of the top part 19.

[0043] When the application plug 9 ascends to the metering position, the stopper projection 24a of the application plug 9 abuts against the opening peripheral edge part of the second communication hole 8 in the metering cylinder member 7, the upper end part of the seal cylinder 24 is closely fitted into the second communication hole 8, and the lower end part of the seal cylinder 24 disengages upward from inside the peripheral wall of the cylinder 12. Thereby, the communication between the second communication hole 8 and the metering chamber 6 is blocked, and the metering chamber 6 communicates with the first communication hole 5. From this state, when the cap body 10 further moves upward with respect to the mouth portion 3 of the container body 2, the undercut fitting between the lower end portion of the pulling-up cylinder 31 of the cap body 10 and the lower end portion 42d of the fitting cylinder 42 of the support cylinder 40 is released, and the cap body 10 is removed from the container body 2, the support cylinder 40, and the head body 45.

[0044] Next, when the coating container 1 is placed in an inverted posture with the coating plug 9 located at the metering position, the content in the container body 2 flows into the metering chamber 6 through the first communication hole 5, while the content flowing into the metering chamber 6 does not flow out through the second communication hole 8.

[0045] Next, when the head body 45 is pressed against the coated portion, the head body 45 moves toward the coating position together with the support cylinder 40 and the coating plug 9. In this process, among the fitting cylinders 42, the vertical intermediate portion formed in an annular plate shape with the front and back surfaces facing the vertical direction and arranged coaxially with the container axis O abuts against the upper end opening edge 19a of the top portion 19 in the vertical direction, the upper end portion of the seal cylinder 24 disengages downward from within the second communication hole 8, and the lower end portion of the seal cylinder 24 tightly fits into the cylinder barrel 12.

[0046] As a result, in the coating container 1, the communication between the metering chamber 6 and the first communication hole 5 is blocked, so that the content in the container body 2 no longer flows into the metering chamber 6, and the content corresponding to the volume of the metering chamber 6 is metered. On the other hand, since the second communication hole 8 and the metering chamber 6 communicate with each other, the metered content in the metering chamber 6 flows into the upper portion of the fitting cylinder 42 in the support cylinder 40 through the second communication hole 8 and the third communication hole 43. At this time, since the inner peripheral surface of the lower portion of the fitting cylinder 42 and the outer peripheral surface of the top portion 19 of the metering cylinder member 7 are sealed, the content flowing into the upper portion of the fitting cylinder 42 does not leak from between the inner peripheral surface of the lower portion of the fitting cylinder 42 and the outer peripheral surface of the top portion 19 of the metering cylinder member 7. Then, by pressing the head body 45 against the coated portion, the top wall portion of the head body 45 is elastically deformed toward the inside of the upper portion of the fitting cylinder 42, and the content inside the upper portion of the fitting cylinder 42 is pressurized and discharged from the discharge hole 46. In this way, the user can apply the content of the application container 1 to the coated portion.

[0047] After the application is completed, while inserting the head body 45 inside the pull-up cylinder 31 of the cap body 10, by screwing the female screw portion of the cap body 10 onto the male screw portion of the mouth portion 3 of the container body 2, the lower end portion of the pull-up cylinder 31 is passed downward through the peripheral wall portion of the head body 45 and undercut-fitted to the lower end portion 42d of the fitting cylinder 42 of the support cylinder 40, and the cap body 10 is attached to the mouth portion 3 of the container body 2.

[0048] As described above, according to the application container 1 of the present embodiment, the upper end opening edge 19a of the top portion 19 of the measuring cylinder member 7 abuts against the inner surface of the fitting cylinder 42 of the support cylinder 40 in the vertical direction at the application position, and the upper end opening edge 42c of the fitting cylinder 42 abuts against the inner surface of the head body 45 in the vertical direction. At least a part of the radial direction in each of the former abutting portion and the latter abutting portion is located on the same straight line extending in the vertical direction in a vertical cross-sectional view along the vertical direction. Therefore, when the user presses the top wall portion of the head body 45 against a coated portion such as the skin of the body, the force applied to the top wall portion of the head body 45 is directly transmitted vertically from the abutting portion between the inner surface of the head body 45 and the upper end opening edge 42c of the fitting cylinder 42 toward the abutting portion between the inner surface of the fitting cylinder 42 and the upper end opening edge 19a of the top portion 19 at the application position. It becomes possible to prevent the head body 45 from being deformed unevenly, ensure the sealing property between the inner surface of the head body 45 and the upper end opening edge 42c of the fitting cylinder 42, and suppress the release of the seal between the head body 45 and the support cylinder 40 during application. Furthermore, since it becomes possible to prevent the head body 45 from being deformed unevenly, it becomes possible to easily elastically deform the top wall portion of the head body 45 stably in the vertical direction, and for example, it is possible to improve the massage effect.

[0049] Since the locking protrusion 48 formed on the outer peripheral surface of the fitting cylinder 42 is fitted into the locking groove 47 formed on the inner surface of the head body 45, the fitting cylinder 42 can be firmly fitted into the head body 45. In combination with the fact that the locking groove 47 and the locking protrusion 48 are located below the upper end opening edge 42c of the fitting cylinder 42, it becomes possible to suppress the disengagement of the engagement between the locking groove 47 and the locking protrusion 48 due to the force applied to the top wall portion of the head body 45 during application, and it is possible to reliably ensure the sealing performance between the inner surface of the head body 45 and the upper end opening edge 42c of the fitting cylinder 42.

[0050] The fitting cylinder 42 is externally mounted on the top portion 19 of the measuring cylinder member 7 so as to be vertically slidable and is in radial contact with the outer peripheral surface of the top portion 19 at the measuring position. Therefore, even if the support cylinder 40 is positioned at the measuring position with the contents remaining attached to the inside of each of the head body 45 and the fitting cylinder 42, it is possible to suppress the leakage of the contents from between the top portion 19 and the fitting cylinder 42.

[0051] Note that 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.

[0052] For example, in the above-described embodiment, the locking groove 47 is formed on the inner surface of the head body 45 and the locking protrusion 48 is formed on the outer peripheral surface of the fitting cylinder 42, but the locking groove 47 and the locking protrusion 48 may not be provided. The lower end portion of the fitting cylinder 42 may be located above the top portion 19 at the measuring position.

[0053] In addition, without departing from the spirit of the present invention, it is possible to appropriately replace the components in the above-described embodiment with well-known components, and the above-described embodiment and the modified examples may be appropriately combined.

Explanation of Reference Numerals

[0054] 1 Application container 2 Container body 3 Mouth portion 4 Middle plug member 5 First communication hole 6 Measuring chamber 7 Measuring cylinder member 8 Second communication hole 9 Application plug 10 Cap body 19 Top 19a Upper end opening edge of the top 39 Coating structure 40 Support cylinder 41 Mounting part 42 Fitting cylinder 42c Upper end opening edge of the fitting cylinder 43 Third communication hole 45 Head body 46 Discharge hole 47 Locking groove 48 Locking ridge O Container axis

Claims

1. A container body for accommodating a content to be applied to a coated portion; and An application structure attached to the mouth of the container body, comprising: The application structure includes: An inner stopper member attached to the mouth of the container body and having a first communication hole formed therein that communicates with the inside of the container body; A measuring cylinder member that forms a measuring chamber communicating with the inside of the container body through the first communication hole between the inner stopper member, and has a second communication hole formed at the top that communicates with the measuring chamber; An application stopper provided in the measuring chamber, comprising: The application stopper: Is disposed so as to be movable in the vertical direction between a measuring position that blocks communication between the second communication hole and the measuring chamber and allows communication between the measuring chamber and the first communication hole, and an application position that is located below the measuring position, blocks communication between the measuring chamber and the first communication hole, and allows communication between the second communication hole and the measuring chamber; The application structure further includes: A toped cylindrical head body formed of an elastically deformable soft material and having a discharge hole for the content formed in the top wall portion; and A support cylinder formed of a material harder than the soft material and fitted inside the head body; The support cylinder is provided with a mounting portion attached to the application stopper and a fitting cylinder fitted inside the head body, and a third communication hole is formed that communicates with the inside of the fitting cylinder and communicates with the measuring chamber through the second communication hole at the application position; The top of the measuring cylinder member is formed in a cylindrical shape extending in the vertical direction; The inside of the top is the second communication hole; The upper end opening edge of the top abuts against the inner surface of the fitting cylinder in the vertical direction at the application position; The upper end opening edge of the fitting cylinder abuts against the inner surface of the head body in the vertical direction; At least a part of the radial direction at the contact portion between the inner surface of the fitting cylinder and the upper end opening edge of the top, and at the contact portion between the upper end opening edge of the fitting cylinder and the inner surface of the head body, are located on the same straight line extending in the vertical direction in a longitudinal sectional view along the vertical direction. An application container.

2. A locking groove that is recessed outward in the radial direction and extends over the entire circumference is formed on the inner surface of the head body; A locking protrusion that protrudes outward in the radial direction and extends over the entire circumference is formed on the outer peripheral surface of the fitting cylinder; The locking protrusion is fitted into the locking groove; The application container according to claim 1, wherein the locking groove and the locking protrusion are located below the upper end opening edge of the fitting cylinder.

3. The fitting cylinder is externally mounted on the top of the measuring cylinder member so as to be vertically slidable, and is in radial contact with the outer peripheral surface of the top at the measuring position. The coating container according to claim 1 or 2.

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