Application container

Abstract

This prevents the internal space of the top wall of the head from shrinking and deforming significantly when the top wall of the head is pressed against the surface to be coated. [Solution] The coating structure 39 comprises a top-shaped cylindrical head body 45 made of an elastically deformable soft material and having a content discharge hole 46 formed in its top wall, and a support cylinder 40 made of a harder material than the soft material and fitted inside the head body. The support cylinder is provided with a mounting portion 41 attached to the coating plug 9 and a fitting cylinder 42 fitted inside the head body. A third communication hole 43 is formed which communicates with the fitting cylinder and communicates with the measuring chamber 6 through a second communication hole 8 at the coating position. A regulating portion 51 is formed on the lower surface of the top wall of the head body, which protrudes downward and can contact the coating plug.

Description

Technical Field

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

Background Art

[0002] Conventionally, as an application container for applying a content such as a chemical solution to an application part such as the scalp of a human body, it includes a container body in which the content is stored, and an application structure attached to the mouth part of the container body. The application structure is formed of an elastically deformable soft material, and has a roofed cylindrical head body in which a discharge hole for the content is formed in the roof wall part, and a support cylinder formed of a material harder than the soft material and fitted inside the head body. By pressing the roof wall part of the head body against the skin surface of the body, the content is discharged from the discharge hole and applied to the application part. For example, in Patent Document 1 below, in a state where the application container is in an inverted posture, in the application structure, after measuring the content, the measured content is caused to flow into the internal space of the roof wall part of the head body, and then, by pressing the roof wall part of the head body against the application part, the roof wall part of the head body is elastically deformed to reduce the internal space, and the content is discharged from the discharge hole by the measured amount. An application container is disclosed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when the roof wall part of the head body is pressed against the application part, there is a possibility that the internal space of the roof wall part of the head body is greatly reduced and deformed, and a large amount of the content is discharged from the discharge hole. In this case, for example, there is a possibility that the content is wasted, such as dripping from the application part.

[0005] The present invention provides a coating container that can suppress significant contraction and deformation of the internal space of the top wall of the head body when the top wall of the head body is pressed against the surface to be coated. [Means for solving the problem]

[0006] A coating container according to one aspect of the present invention comprises a container body containing a substance to be coated on a portion to be coated, and a coating structure attached to the mouth of the container body, wherein the coating structure includes a 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, and a measuring cylinder member between the stopper member and the measuring cylinder member, the measuring chamber being formed therein through the first communication hole and communicating with the inside of the container body, and a second communication hole formed at the top that communicates with the measuring chamber, The coating structure comprises a coating plug provided in the measuring chamber, the coating plug being arranged to move vertically 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 a coating position located below the measuring position that blocks communication between the measuring chamber and the first communication hole and allows communication between the second communication hole and the measuring chamber, the coating structure being formed of an elastically deformable soft material and having a discharge hole for the contents formed in the top wall. The device comprises a top-shaped cylindrical head body and a support cylinder made 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 coating plug and a fitting cylinder fitted inside the head body. A third communication hole is formed which communicates with the fitting cylinder and communicates with the measuring chamber through the second communication hole at the coating position. A restricting portion is formed on the lower surface of the top wall of the head body, which protrudes downward and can abut against the coating plug.

[0007] When the dispensing stopper is in the measuring position and the dispensing container is placed in an inverted position, the contents inside the container body flow into the measuring chamber through the first communication hole, while the contents that have flowed into the measuring chamber do not flow out through the second communication hole. Next, when the top wall of the head body is pressed against the area to be coated, the head body moves toward the coating position together with the support cylinder and the coating plug, blocking communication between the metering chamber and the first communication hole, while opening communication between the second communication hole and the metering chamber. As a result, no further contents from the container body flow into the weighing chamber, and only the contents corresponding to the volume of the weighing chamber are weighed. At the same time, since the second communication hole and the weighing chamber are connected, the weighed contents in the weighing chamber flow into the internal space of the top wall of the head body through the second communication hole, the third communication hole, and the fitting cylinder of the support cylinder. Then, by pressing the top wall of the head body against the area to be coated, the top wall of the head body elastically deforms, causing the internal space to shrink and deform, and the contents are discharged from the discharge hole. In this case, a restricting portion is formed on the lower surface of the top wall of the head body, which protrudes downward. This allows the restricting portion to abut against the coating plug, suppressing significant contraction and deformation of the internal space of the top wall of the head body when it is pressed against the surface to be coated, and enabling the contents to be dispensed stably in small amounts.

[0008] The mounting portion may be formed in a cylindrical shape extending in the vertical direction, and the lower end of the restricting portion may be inserted into the upper end of the mounting portion.

[0009] Since the lower end of the restricting part is inserted into the upper end of the cylindrical mounting part, even if the top wall of the head body is pushed in a direction that intersects the vertical direction along the container axis, the restricting part can be reliably abutted against the coating plug without separating from it.

[0010] The third communication hole is formed at the upper end of the mounting portion and opens at the upper end opening edge of the mounting portion, and the opening width of the third communication hole along the circumferential direction on the inner circumferential surface of the mounting portion may be smaller than the outer diameter of the restricting portion.

[0011] Since the third communication hole is formed at the upper end of the mounting portion and opens at the upper end opening edge of the mounting portion, when the coating container is in an inverted position and the coating stopper moves from the measuring position to the coating position, the measured contents in the measuring chamber can be smoothly flowed into the internal space of the top wall of the head body through the second communication hole, the third communication hole, and the fitting cylinder of the support cylinder. Since the opening width of the third communication hole along the circumferential direction on the inner circumferential surface of the mounting portion is smaller than the outer diameter of the restricting portion, even if the top wall portion of the head body is pushed in a direction intersecting the vertical direction along the container axis, the restricting portion can be prevented from fitting into the third communication hole.

[0012] The regulating portion may be formed in the shape of a solid rod extending in the vertical direction.

[0013] Since the regulating portion is formed as a solid rod extending in the vertical direction, compared to the case where the regulating portion is formed as a cylindrical shape extending in the vertical direction, it is possible to reliably prevent the regulating portion from becoming stuck in the third communication hole when the top wall of the head body is pushed in in a direction intersecting the vertical direction along the container axis.

[0014] The upper opening edge of the mounting portion may extend downward as it moves inward in the radial direction.

[0015] Since the upper opening edge of the mounting portion extends downward as it moves radially inward, when fitting the fitting cylinder of the support cylinder into the head body, even if the restricting portion comes into contact with the upper opening edge of the mounting portion, the restricting portion can be guided inward into the mounting portion. [Effects of the Invention]

[0016] According to one aspect of the present invention, when the top wall of the head body is pressed against the area to be coated, it is possible to suppress the large contraction and deformation of the internal space of the top wall of the head body. [Brief explanation of the drawing]

[0017] [Figure 1]A longitudinal sectional view of an application container according to an embodiment when the application plug is in the application position. [Figure 2] A longitudinal sectional view of an application container according to an embodiment when the application plug is in the metering position. [Figure 3] It is a cross-sectional view taken along the arrow III-III in FIG. 2.

Mode for Carrying Out the Invention

[0018] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 3. 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 capped cylindrical shape. The central axes of the container body 2 and the cap body 10 are arranged on a common axis.

[0019] Hereinafter, this common axis is referred to as the container axis O. 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 the vertical direction. The direction intersecting the container axis O as viewed from the vertical direction is the radial direction, and the direction orbiting around the container axis O as viewed from the vertical direction is the circumferential direction.

[0020] The container body 2 houses the content to be applied to the application part. Examples of the content include a hair growth agent applied to an application part such as the user's scalp or skin, a hair growth agent containing minoxidil, and other chemical liquids. The mouth portion 3 of the container body 2 has a smaller diameter than the other parts of the container body 2 except the mouth portion 3. A male screw portion is formed on the outer peripheral surface of the mouth portion 3. The male screw portion may be, for example, a double-threaded screw. The outer diameter of the upper end portion of the mouth portion 3 located above the male screw portion is smaller than the outer diameter of the portion located below the upper end portion.

[0021] The application structure 39 is attached to the mouth portion 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.

[0022] The inner stopper member 4 is attached to the mouth 3 of the container body 2 and has a first communication hole 5 that communicates with the inside of the container body 2. The inner stopper member 4 comprises a mounting cylinder 13 fitted into the mouth 3 of the container body 2, a bottomed cylindrical cylinder 12 provided on 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 inner stopper member 4 is made of a hard resin material (for example, polypropylene).

[0023] The upper end of the mounting cylinder 13 protrudes above the mouth portion 3 of the container body 2 and is positioned at the upper opening edge of the mouth portion 3. The cylinder barrel 12 extends downward from the lower end of the mounting barrel 13. The inner and outer diameters of the cylinder barrel 12 are smaller than those of the mounting barrel 13. The first communication hole 5 is formed in the cylinder 12, and the inside of the cylinder 12 communicates with the container body 2 through the first communication hole 5. The first communication hole 5 is integrally formed on the outer peripheral edge of the bottom wall of the cylinder 12 and on the lower end of the peripheral wall of the cylinder 12. Multiple first communication holes 5 are provided at intervals in the circumferential direction. The upper end of the support 11 is located below the upper end of the mounting cylinder 13 and above the upper end of the cylinder cylinder 12.

[0024] The measuring cylinder member 7 forms a measuring chamber 6 between itself and the stopper member 4, which communicates with the inside of the container body 2 through a first communication hole 5. The measuring cylinder member 7 comprises a base cylinder portion 18 attached to the mouth portion 3 of the container body 2, a vertically extending cylindrical top portion 19 located above the base cylinder portion 18 with a second communication hole 8 on its inside that communicates with the measuring chamber 6, and a connecting cylinder portion 20 that connects the base cylinder portion 18 and the top portion 19. The base cylinder portion 18, the top portion 19, and the connecting cylinder portion 20 are arranged coaxially with the container axis O and are integrally formed. The measuring cylinder member 7 is made of a hard resin material (for example, polypropylene).

[0025] The base cylinder portion 18 is fitted onto the upper end of the mouth portion 3 of the container body 2 and the upper end of the mounting cylinder 13 of the inner stopper member 4. The inner and outer diameters of the top portion 19 are smaller than the inner and outer diameters of the base cylindrical portion 18. The connecting cylinder portion 20 connects the upper end of the base cylinder portion 18 and the lower end of the top portion 19, and extends radially inward as it goes upward. The measuring chamber 6 is defined by at least the connecting cylinder portion 20 of the measuring cylinder member 7 and the mounting cylinder 13 of the stopper member 4. A protective tube 21 extending upward is formed on the base tube portion 18. The protective tube 21 surrounds the connecting tube portion 20 and the top portion 19 from the radial outside. The upper end of the protective tube 21 is located below the upper end of the top portion 19.

[0026] The coating plug 9 is provided in the measuring chamber 6. The coating plug 9 is arranged to be movable in the vertical direction between a measuring position (for example, the position shown in Figure 2) that blocks communication between the second communication hole 8 and the measuring chamber 6 and allows communication between the measuring chamber 6 and the first communication hole 5, and a coating position (for example, the position shown in Figure 1) that is located below the measuring position, blocks communication between the measuring chamber 6 and the first communication hole 5, and allows communication between the second communication hole 8 and the measuring chamber 6. In this context, "to connect" includes both the meanings of "to connect" and "to make it possible to connect."

[0027] The coating plug 9 comprises a sealing cylinder 24 disposed in the measuring chamber 6, and a top-mounted cylindrical external tube 25 connected to the upper and lower intermediate portion of the sealing cylinder 24 and surrounded radially from the outside by the sealing cylinder 24. The coating plug 9 is made of a rigid resin material (e.g., high-density polyethylene). The sealing cylinder 24 and the external tube 25 are arranged coaxially with the container axis O and are integrally formed.

[0028] The upper end of the seal cylinder 24 is tightly fitted into the second communication hole 8 so as to be able to slide up and down when the coating plug 9 is in the metering position, and disengages downward from the second communication hole 8 when the coating plug 9 is in the coating position. The lower end of the seal cylinder 24 is tightly fitted into the portion of the peripheral wall of the cylinder cylinder 12 located above the first communication hole 5 so as to be able to slide up and down when the coating plug 9 is in the coating position, and disengages upward from the peripheral wall of the cylinder cylinder 12 when the coating plug 9 is in the metering position. The upper end of the seal cylinder 24 expands in diameter as it goes upward, and the lower end of the seal cylinder 24 expands in diameter as it goes downward.

[0029] A stopper projection 24a is formed on the seal cylinder 24, projecting radially outward. The stopper projection 24a is located in the middle of the vertical direction on the outer circumferential surface of the seal cylinder 24. The stopper projection 24a is located slightly below the connection point between the seal cylinder 24 and the overlay cylinder 25. The stopper projection 24a extends continuously along its entire circumferential length.

[0030] The stopper projection 24a abuts from below against the opening periphery of the second communication hole 8 inside the measuring cylinder member 7 when the coating plug 9 is in the metering position. In the illustrated example, when the coating plug 9 is in the metering position, the stopper projection 24a abuts from below against the connecting portion between the top portion 19 and the connecting cylinder portion 20 inside the measuring cylinder member 7. In this way, when the coating plug 9 is in the metering position, the stopper projection 24a of the coating plug 9 abuts from below against the opening periphery of the second communication hole 8 inside the measuring cylinder member 7, so that even if an external force acts to move the coating plug 9 upward relative to the measuring chamber 6, the coating plug 9 is prevented from moving any further upward.

[0031] Furthermore, when the dispensing plug 9 is in the metering position, if the stopper projection 24a is in liquid-tight contact with the opening periphery of the second communication hole 8 inside the metering cylinder member 7 from below, that is, if the stopper projection 24a has a sealing function, the stopper projection 24a may be provided at the upper end of the sealing cylinder 24, and a configuration may be adopted in which the upper end of the sealing cylinder 24 does not fit into the second communication hole 8 when the dispensing plug 9 is in the metering position.

[0032] The external cylinder 25 is externally fitted onto the support 11 of the inner plug member 4 so as to be able to move relative to it in the vertical direction. In the illustrated example, the lower end of the external cylinder 25 is located below the lower end of the seal cylinder 24. The upper end of the external cylinder 25 is located above the upper end of the seal cylinder 24. When the coating plug 9 is in the coating position, the upper end of the external cylinder 25 is located below the upper opening edge 19a of the top 19 of the measuring cylinder member 7 and is located inside the top 19. The upper end of the external cylinder 25 constitutes the upper end of the coating plug 9. The lower end opening edge of the external cylinder 25 is separated above the upper surface of the bottom wall of the cylinder 12 when the coating plug 9 is in the coating position. At this time, a vertical gap is provided between the upper end surface of the support 11 and the inner surface of the external cylinder 25.

[0033] The support cylinder 40 is provided with a mounting portion 41 and a fitting cylinder 42, and has a third communication hole 43 formed therein. The support cylinder 40 is made of a rigid resin material (for example, high-density polyethylene).

[0034] The mounting portion 41 is formed in a cylindrical shape and is fitted onto the upper part of the outer tube 25. This allows the support tube 40 to be attached to the coating plug 9. In the illustrated example, the mounting portion 41 is undercut fitted onto the upper part of the outer tube 25. The mounting portion 41 is inserted into the second communication hole 8 with a radial gap between it and the inner circumferential surface of the second communication hole 8. The upper end opening edge 41a of the mounting portion 41 extends downward as it moves radially inward. The upper end opening edge 41a of the mounting portion 41 is located above the upper end of the outer tube 25. The support cylinder 40 may be formed integrally with the coating plug 9.

[0035] The fitting cylinder 42 is provided on the outside of the measuring cylinder member 7. The fitting cylinder 42 is formed in a multi-stage cylindrical shape in which the inner and outer diameters decrease as it goes upwards. The upper part of the fitting cylinder 42 is located above the measuring cylinder member 7 and the mounting portion 41. 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. The lower part of the fitting cylinder 42 is externally mounted on the top portion 19 of the measuring cylinder member 7 so as to be vertically slidable. The lower part of the fitting cylinder 42 always abuts radially around the entire circumference of the outer circumferential surface of the top portion 19, regardless of whether the coating plug 9 is in the coating position or the measuring position. A sealing projection is formed on either the inner circumferential surface of the lower part of the fitting cylinder 42 or the outer circumferential surface of the top portion 19 of the measuring cylinder member 7, which abuts against the other to seal the space between the inner circumferential surface of the lower part of the fitting cylinder 42 and the outer circumferential surface of the top portion 19. The vertical intermediate portion of the fitting cylinder 42, located between the upper and lower parts as described above, is formed as an annular plate shape with its front and back surfaces facing vertically and arranged coaxially with the container axis O. The vertical intermediate portion of the fitting cylinder 42 is connected to the upper end of the mounting portion 41, straddling the upper end opening edge 19a of the top portion 19 radially. When the coating plug 9 is in the coating position, the downward-facing inner surface of the vertical intermediate portion of the fitting cylinder 42 abuts against the upper end opening edge 19a of the top portion 19 in the vertical direction. This restricts the coating plug 9 from moving further downward when it is in the coating position. The portion of the inner surface of the vertical intermediate portion of the fitting cylinder 42 that abuts against the upper end opening edge 19a of the top portion 19 is a flat surface extending in the radial and circumferential directions. The inner peripheral edge of the fitting cylinder 42 in the vertical middle section protrudes radially inward from the upper end opening edge 19a of the top portion 19, and extends downward as it moves radially inward. The lower end portion 42d of the fitting cylinder 42 protrudes downward from the peripheral wall portion of the head body 45. The lower end portion 42d of the fitting cylinder 42 has a flange portion that protrudes radially outward, and its upper surface is in contact with or close to the lower end opening edge of the peripheral wall portion of the head body 45.

[0036] The lower end portion 42d of the fitting cylinder 42 and the lower end portion of the peripheral wall of the head body 45 are surrounded radially from the outside by the protective cylinder 21 of the measuring cylinder member 7 when the application plug 9 is in the application position. This prevents the application plug 9 from being pulled up to the measuring position by pinching the lower end portion 42d of the fitting cylinder 42 or the lower end portion of the peripheral wall of the head body 45 while applying the contents to the application area, or after the application has been started, by pressing the top wall portion of the head body 45 against the area to be applied, such as the skin of the body. The inner surface of the protective cylinder 21 is radially separated from the lower end portion 42d of the fitting cylinder 42 and the lower end portion of the peripheral wall of the head body 45.

[0037] The third communication hole 43 is formed at the upper end of the mounting portion 41 and communicates with the upper part of the fitting cylinder 42. The third communication hole 43 penetrates the mounting portion 41 radially and opens at the upper end opening edge 41a of the mounting portion 41. When the coating plug 9 is in the coating position, the third communication hole 43 is located within the second communication hole 8 and communicates with the measuring chamber 6 through the second communication hole 8. Two third communication holes 43 are provided and face each other radially. Here, the outer circumferential surface of the mounting portion 41 faces the inner circumferential surface of the second communication hole 8 with a radial gap between them. As a result, when the coating plug 9 is in the coating position, the contents of the measuring chamber 6 flow through this gap and further through the third communication hole 43 into the upper part of the fitting cylinder 42.

[0038] The fitting cylinder 42 of the support cylinder 40 is fitted inside the head body 45. The top wall of the head body 45 closes the upper end opening 42b of the fitting cylinder 42. The top wall of the head body 45 extends upward as it moves inward in the radial direction. The top wall of the head body 45 has a projection that protrudes upward and a discharge hole 46 for the contents. The discharge holes 46 penetrate vertically through the top wall of the head body 45. The discharge holes 46 open toward the upper end opening 42b of the fitting cylinder 42. Multiple discharge holes 46 are provided at equal intervals in the circumferential direction (for example, three or more). The projections do not need to be provided, and the position and number of the projections are not limited to the illustrated example and may be changed as appropriate. The position and number of discharge holes 46 may also be changed as appropriate.

[0039] The head body 45 is formed in a top-cylindrical shape from an elastically deformable soft material. Examples of soft materials include elastically deformable rubber-like materials such as nitrile rubber, butyl rubber, silicone rubber, and elastomers, as well as elastically deformable resin materials such as low-density polyethylene. Among these, silicone rubber with a hardness of 35 to 75 (durometer hardness test (type A durometer) in accordance with JIS K 6253:2006) is preferably used, for example, one with a hardness of 50. The head body 45 is formed from a material softer than the material forming the support cylinder 40. When the top wall of the head body 45 is pressed against the area to be coated, the support cylinder 40 does not deform, while the top wall of the head body 45 elastically deforms. The head body 45 may be opaque or transparent (semi-transparent), but if it is transparent (semi-transparent), the remaining amount of the contents to be coated can be seen, allowing for more reliable application of the desired amount.

[0040] A restricting portion 51 is formed on the lower surface of the top wall of the head body 45, which protrudes downward and can contact the coating plug 9. The restricting portion 51 is formed in the shape of a solid rod (cylindrical in the illustrated example) extending in the vertical direction. Alternatively, the restricting portion 51 may be formed in the shape of a cylindrical tube extending in the vertical direction. The restricting portion 51 is arranged coaxially with the container axis O. The restricting portion 51 penetrates vertically through the upper part of the fitting cylinder 42. The lower end of the restricting portion 51 is inserted into the upper end of the mounting portion 41. The lower end surface of the restricting portion 51 is located below the radial inner end of the upper end opening edge 41a of the mounting portion 41. The lower end surface of the restricting portion 51 faces the upper end surface of the external cylinder 25, which constitutes the upper end surface of the coating plug 9, in the vertical direction, separated upward. As shown in Figure 3, the circumferential opening width of the third communication hole 43 on the inner circumferential surface of the mounting portion 41 is smaller than the outer diameter of the restricting portion 51. The circumferential opening width of the third communication hole 43 on the outer circumferential surface of the mounting portion 41 is greater than or equal to the outer diameter of the restricting portion 51.

[0041] 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 top-cylindrical shape having a top wall 28 and a peripheral wall 29.

[0042] A female threaded portion is formed on the inner surface of the peripheral wall 29, which screws into the male threaded portion of the opening 3. The female thread portion may be, for example, a double thread. Instead of forming a male thread portion on the opening 3, the male thread portion may be formed on the outer circumferential surface of the base cylinder portion 18 of the measuring cylinder member 7 of the coating structure 39, and the female thread portion of the peripheral wall 29 may be screwed onto this male thread portion. The cap body 10 may be modified as appropriate, instead of being detachably screwed onto the opening 3 or the coating structure 39, for example, by having the smooth outer circumferential surface of the opening 3 or the coating structure 39 detachably fitted onto the smooth inner circumferential surface of the cap body 10, or by having the cap body 10 detachably undercut-fitted onto the opening 3 or the coating structure 39.

[0043] The cap body 10 is equipped with a lifting cylinder 31 that surrounds the lower end 42d of the fitting cylinder 42 from the radial outside. The lifting cylinder 31 is arranged 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 circumferential surface of the protective cylinder 21 and the outer circumferential surfaces of the lower end 42d of the fitting cylinder 42 and the lower end of the peripheral wall portion of the head body 45. The lower end of the lifting cylinder 31 is undercut fitted into the flange portion formed on the lower end 42d of the fitting cylinder 42. As a result, as the cap body 10 moves upward relative to the mouth portion 3 and the measuring cylinder member 7, the support cylinder 40, the head body 45 and the dispensing plug 9 are lifted, and the dispensing plug 9 moves to the measuring position.

[0044] The operation of the coating container 1 of this embodiment will be described below.

[0045] When applying the contents of the container body 2 to the area to be coated, first, the cap body 10 is moved upward to detach it from the mouth 3 of the container body 2, exposing the head body 45. Here, when the cap body 10 is detached, the lower end of the lifting cylinder 31 is undercut fitted into the flange portion formed on the lower end 42d of the fitting cylinder 42 of the support cylinder 40. As the cap body 10 rises, the support cylinder 40, the head body 45, and the coating plug 9 are all lifted up, and as shown in Figure 2, the coating plug 9 moves to the measuring position.

[0046] In this case, if the male thread portion of the mouth 3 and the female thread portion of the cap body 10 are double-start threads, the thread lead is larger compared to a single-start thread configuration. Therefore, the amount of vertical displacement of the cap body 10 with respect to the amount of circumferential rotation can be increased. As a result, the support cylinder 40, the head body 45, and the coating plug 9 can be quickly moved upward, and the cap body 10 can be quickly detached from the mouth 3 of the container body 2.

[0047] Even when the coating stopper 9 rises to the measuring position, the lower part of the fitting cylinder 42 remains in radial contact with the outer circumferential surface of the top portion 19 of the measuring cylinder member 7 over its entire circumference. Since the space between the inner circumferential surface of the lower part of the fitting cylinder 42 and the outer circumferential surface of the top portion 19 is sealed, even if some contents remain, such as adhering to the inside of the head body 45 and the fitting cylinder 42, these contents will not leak out from between the inner circumferential surface of the lower part of the fitting cylinder 42 and the outer circumferential surface of the top portion 19.

[0048] When the coating plug 9 rises to the metering position, the stopper projection 24a of the coating plug 9 abuts against the opening periphery of the second communication hole 8 inside the metering cylinder member 7, the upper end of the seal cylinder 24 fits tightly into the second communication hole 8, and the lower end of the seal cylinder 24 detaches upward from the peripheral wall of the cylinder cylinder 12. As a result, communication between the second communication hole 8 and the metering chamber 6 is blocked, while communication between the metering chamber 6 and the first communication hole 5 is established. From this state, the cap body 10 moves further upward relative to the opening 3 of the container body 2, releasing the undercut fitting between the lower end of the lifting cylinder 31 of the cap body 10 and the lower end 42d of the fitting cylinder 42 of the support cylinder 40, and the cap body 10 is removed from the container body 2, the support cylinder 40, and the head body 45.

[0049] Next, with the coating stopper 9 in the metering position, when the coating container 1 is turned upside down, the contents inside the container body 2 flow into the metering chamber 6 through the first communication hole 5, while the contents that have flowed into the metering chamber 6 do not flow out through the second communication hole 8.

[0050] Next, when the top wall of the head body 45 is pressed against the area to be coated, the head body 45 moves toward the coating position together with the support cylinder 40 and the coating plug 9. During this process, the upper and lower intermediate portion of the fitting cylinder 42, which is formed in an annular plate shape with its front and back surfaces facing vertically and arranged coaxially with the container axis O, abuts vertically against the upper end opening edge 19a of the top portion 19, the upper end of the seal cylinder 24 detaches downward from the second communication hole 8, and the lower end of the seal cylinder 24 fits tightly into the cylinder cylinder 12.

[0051] As a result, communication between the measuring chamber 6 and the first communication hole 5 is blocked, so that no further contents from the container body 2 flow into the measuring chamber 6, and the contents corresponding to the volume of the measuring chamber 6 are measured. Meanwhile, since the second communication hole 8 and the measuring chamber 6 are in communication, the measured contents in the measuring chamber 6 flow into the upper part of the fitting cylinder 42 through the second communication hole 8 and the third communication hole 43. At this time, the space between the inner circumferential surface of the lower part of the fitting cylinder 42 and the outer circumferential surface of the top 19 of the measuring cylinder member 7 is sealed, so that the contents that have flowed into the upper part of the fitting cylinder 42 do not leak out from between the inner circumferential surface of the lower part of the fitting cylinder 42 and the outer circumferential surface of the top 19 of the measuring cylinder member 7. Then, by pressing the top wall of the head body 45 against the area to be coated, the top wall of the head body 45 elastically deforms to reduce its internal space, and the contents of the internal space of the top wall of the head body 45 are pressurized and discharged from the discharge hole 46. At this time, the lower end surface of the regulating portion 51 comes into contact with the upper end surface of the outer tube 25. Therefore, it is easy to keep the amount of deformation of the top wall of the head body 45 constant, so that the contents can be discharged repeatedly and stably in small amounts. In this way, the user can apply the contents to the area to be coated.

[0052] After application is complete, the head body 45 is inserted into the inside of the lifting cylinder 31 of the cap body 10, and the female thread portion of the cap body 10 is screwed onto the male thread portion of the mouth 3 of the container body 2. This causes the lower end of the lifting cylinder 31 to pass downwards over the peripheral wall of the head body 45, and it is fitted with an undercut to the lower end 42d of the fitting cylinder 42 of the support cylinder 40, thereby attaching the cap body 10 to the mouth 3 of the container body 2.

[0053] As described above, in the coating container 1 of this embodiment, a restricting portion 51 that protrudes downward is formed on the lower surface of the top wall of the head body 45. Therefore, when the top wall of the head body 45 is pressed against the object to be coated and elastically deformed, the restricting portion 51 can abut against the coating stopper 9. This suppresses a large reduction in the internal space of the top wall of the head body 45, and allows the contents to be dispensed stably in small amounts.

[0054] Since the lower end of the restricting portion 51 is inserted into the upper end of the cylindrical mounting portion 41, even if the top wall of the head body 45 is pushed in a direction that intersects the vertical direction, the restricting portion 51 can be reliably abutted against the coating plug 9 without separating from it.

[0055] Since the third communication hole 43 is formed at the upper end of the mounting portion 41 and opens to the upper end opening edge 41a of the mounting portion 41, when the coating container 1 is in an inverted position and the coating stopper 9 moves from the metering position to the coating position, the metered contents in the metering chamber 6 can be smoothly flowed into the internal space of the top wall portion of the head body 45 through the second communication hole 8, the third communication hole 43, and the fitting cylinder 42 of the support cylinder 40. Since the opening width of the third communication hole 43 along the circumferential direction on the inner circumferential surface of the mounting portion 41 is smaller than the outer diameter of the restricting portion 51, even if the top wall portion of the head body 45 is pushed in a direction intersecting the vertical direction, the restricting portion 51 can be prevented from fitting into the third communication hole 43.

[0056] Since the restricting portion 51 is formed in the shape of a solid rod extending in the vertical direction, compared to the case where the restricting portion 51 is formed in the shape of a cylinder extending in the vertical direction, it is possible to reliably prevent the restricting portion 51 from fitting into the third communication hole 43 when the top wall portion of the head body 45 is pushed in a direction that intersects with the vertical direction.

[0057] Since the upper opening edge 41a of the mounting portion 41 extends downward as it moves radially inward, when fitting the fitting cylinder 42 of the support cylinder 40 into the head body 45, even if the restricting portion 51 comes into contact with the upper opening edge 41a of the mounting portion 41, the restricting portion 51 can be guided to the inside of the mounting portion 41.

[0058] It should be noted that 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.

[0059] For example, the lower end portion 42d of the fitting cylinder 42 may be located above the top portion 19 at the measuring position. The lower end of the restricting portion 51 may be located above the upper end opening edge 41a of the mounting portion 41. The third communication hole 43 may be located below the upper end opening edge 41a of the mounting portion 41. The opening width of the third communication hole 43 along the circumferential direction on the inner circumferential surface of the mounting portion 41 may be greater than or equal to the outer diameter of the regulating portion 51. The upper end opening edge 41a of the mounting portion 41 may extend straight in the radial direction.

[0060] Furthermore, without departing from the spirit of the present invention, the components in the above-described embodiments may be replaced with well-known components as appropriate, and the above-described embodiments and modifications may be combined as appropriate. [Explanation of Symbols]

[0061] 1. Application container 2. Container body 3 Mouth 4. Inner plug member 5 1st communication hole 6 Weighing room 7 Measuring cylinder member 8 2nd communication hole 9. Applicator plug 19 Top 39. Coated Structure 40 Support tube 41 Mounting part 41a Upper end opening edge of the mounting portion 42 Fitting cylinder 43 Third communication hole 45 Head Body 46 Discharge hole 51 Regulatory Department

Claims

1. A container body containing the contents to be applied to the area to be coated, The container body comprises a coating structure attached to the mouth of the container body, The aforementioned coating structure is A stopper member is attached to the mouth of the container body and has a first communication hole formed therein that communicates with the inside of the container body, A measuring cylinder member is formed between the stopper member and the measuring cylinder member, with a measuring chamber that communicates with the container body through the first communication hole, and a second communication hole that communicates with the measuring chamber formed at the top of the cylinder member. The measuring chamber is provided with a coating plug, The aforementioned coating plug is 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 a coating position located below the measuring position, that blocks communication between the measuring chamber and the first communication hole, and allows communication between the second communication hole and the measuring chamber, are arranged to be movable in the vertical direction between these positions. The aforementioned coating structure is A top-shaped cylindrical head body made of an elastically deformable soft material, with a discharge hole for the contents formed in the top wall, It comprises a support cylinder made of a material harder than the aforementioned soft material and fitted inside the head body, The support cylinder is provided with a mounting portion attached to the coating plug and a fitting cylinder fitted inside the head body, and a third communication hole is formed which communicates with the inside of the fitting cylinder and communicates with the measuring chamber through the second communication hole at the coating position. An applicator container having a restricting portion formed on the lower surface of the top wall of the head body, which protrudes downward and can abut against the applicator plug.

2. The coating container according to claim 1, wherein the mounting portion is formed in a cylindrical shape extending in the vertical direction, and the lower end of the restricting portion is inserted into the upper end of the mounting portion.

3. The third communication hole is formed at the upper end of the mounting portion and opens at the upper end opening edge of the mounting portion. The coating container according to claim 2, wherein the opening width of the third communication hole along the circumferential direction on the inner circumferential surface of the mounting portion is smaller than the outer diameter of the restricting portion.

4. The coating container according to claim 3, wherein the regulating portion is formed in the shape of a solid rod extending in the vertical direction.

5. The coating container according to any one of claims 2 to 4, wherein the upper opening edge of the mounting portion extends downward as it moves inward in the radial direction.

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