Discharge container

Abstract

To prevent outside air from entering a container body even after a cap body is removed from a mouth part of the container body.SOLUTION: A discharge container comprises a bottomed cylindrical inside plug 13 fitted in a mouth part of a container body 11, and an elastically deformable valve body 14 housed inside the inside plug. The inside plug has a communication hole 28 formed in a bottom wall 13a to link the inside of the inside plug to the inside of the container body, and is provided at an upper-end mouth part with a seating face ring 26 projecting radially inward and extending continuously over the entire circumference, a cap body is provided with a press-down projection part 27 which projects downward to be inserted inside the seating face ring to press down the valve body, which is compressed vertically between a top side of the bottom wall and the press-down projection part to deform to close the communication hole downward apart from a reverse side of the seating face ring. When the cap body is removed from the mouth part, the valve body is restored to deform to abut on the reverse side of the sealing face ring, thereby closing the upper-end mouth part of the inside plug.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a dispensing container. [Background technology]

[0002] Conventionally, there has been known a discharge container comprising a container body that contains a liquid content, and a cap body that is detachably attached to the mouth of the container body and has a discharge hole for the liquid content, as shown in Patent Document 1 below, for example. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-245997 Summary of the Invention [Problem to be solved by the invention]

[0004] In this type of dispensing container, when the liquid content solidifies inside the discharge hole, the cap body may be removed from the mouth of the container body to remove the solid matter inside the discharge hole. In this case, the liquid content inside the container body may be exposed to the outside air, which may cause it to solidify or deteriorate, for example.

[0005] The present invention provides a dispensing container that can prevent outside air from entering the container body even when the cap body is removed from the opening of the container body. [Means for solving the problem]

[0006] A discharge container according to one aspect of the present invention comprises a container body in which a liquid content is stored, a cap body removably attached to an opening of the container body and having a discharge hole for the liquid content, a cylindrical inner plug with a bottom fitted into the opening of the container body, and an elastically deformable valve body housed inside the inner plug, wherein a communication hole is formed in the bottom wall of the inner plug to communicate between the inside of the inner plug and the inside of the container body, and a seat protruding radially inward and extending continuously around the entire circumference is provided at an upper end opening of the inner plug. A seat ring is provided, and the cap body is provided with a pressing protrusion that protrudes downward and is inserted inside the seat ring to press down on the valve body, and the valve body is sandwiched vertically between the upper surface of the bottom wall and the pressing protrusion and is compressed and deformed vertically, blocking the communicating hole when it is separated downward from the underside of the seat ring, and when the cap body is removed from the mouth portion, the valve body restores its deformation and abuts against the underside of the seat ring, blocking the upper end opening of the center plug.

[0007] Since the container is equipped with an inner stopper and a valve body, when the liquid pressure of the liquid contents is applied to the valve body, the valve body, supported by the pressing protrusion, is compressed and deformed in the vertical direction, moving upward away from the upper surface of the bottom wall of the inner stopper, opening the communicating hole, and the liquid contents of the container body are discharged from the discharge hole through the communicating hole, the inside of the inner stopper, and the inside of the seat ring. When the cap body is removed from the opening of the container body, the pushing protrusion releases the valve body, which then returns to its original shape while still blocking the communication hole, abutting the underside of the seat ring and closing the top opening of the inner plug. This maintains the airtightness of the container body and prevents outside air from entering the container body through the top opening of the inner plug.

[0008] The container body may include an inner container that accommodates a liquid content and that undergoes volume reduction deformation as the liquid content decreases, and an outer container that houses the inner container.

[0009] Since the inner container shrinks and deforms as the content liquid decreases, it is possible to prevent outside air from entering the inner container when the content liquid is discharged, and it is possible to prevent the content liquid in the inner container from solidifying or changing in quality due to contact with outside air. As mentioned above, even if the cap body is removed from the mouth of the container body, it is possible to prevent the liquid contents of the inner container from coming into contact with the outside air, thereby reliably maintaining the quality of the liquid contents of the inner container.

[0010] The liquid content may be a moisture-curable adhesive.

[0011] Since the liquid content is a moisture-curing adhesive, it solidifies when exposed to outside air, which has the remarkable effect of preventing outside air from entering the container body even when the cap body is removed from the mouth of the container body. [Effects of the Invention]

[0012] According to the above aspect of the present invention, even when the cap body is removed from the opening of the container body, it is possible to prevent outside air from entering the container body. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 2 is a partial vertical cross-sectional view of a discharge container shown as an embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along the line II-II in FIG. [Figure 3] FIG. 2 is a partial vertical cross-sectional view showing the discharge container of FIG. 1 with a cap body removed. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, a discharge container according to one embodiment will be described with reference to the drawings. As shown in Fig. 1, the discharge container 1 includes a container body 11, a cap body 12, an inside plug 13, and a valve body 14. The container body 11 and the inside plug 13 are formed in a cylindrical shape with a bottom, and the cap body 12 is formed in a cylindrical shape with multiple tops. The container body 11, the cap body 12, and the inside plug 13 are arranged coaxially on a common axis.

[0015] Hereinafter, this common axis will be referred to as the container axis O, the side of the cap body 12 along the container axis O will be referred to as the upper side, the bottom side of the container body 11 along the container axis O will be referred to as the lower side, and the direction along the container axis O will be referred to as the up-down direction. When viewed from the up-down direction, the direction intersecting the container axis O will be referred to as the radial direction, and the direction going around the container axis O will be referred to as the circumferential direction.

[0016] 2, the container body 11 comprises an inner container 21 that accommodates a liquid content and undergoes volumetric deformation as the liquid content decreases, and an outer container 22 in which the inner container 21 is housed. The outer surface of the inner container 21 is peelably laminated onto the inner surface of the outer container 22. When viewed from the top-bottom direction, the body of the container body 11 has a flattened shape with a major axis and a minor axis that intersect each other on the container axis O. The outer surface of the inner container 21 may be separated from the inner surface of the outer container 22, the container body 11 may have a single-layer structure, and the body of the container body 11 may have a circular or angular shape when viewed from the top and bottom.

[0017] The liquid contained therein may be, for example, a moisture-curing adhesive that changes in quality when exposed to the outside air. The inner container 21 is a highly flexible and deformable bag or the like. The body of the outer container 22 is formed to be elastically deformable. A through-hole 22a is formed in the body of the outer container 22, and a rod 22b is inserted into the through-hole 22a. The through-hole 22a is provided in the vertical center of the body of the outer container 22. The through-hole 22a is provided in a long side portion of the body of the outer container 22 that faces the minor axis direction and extends along the major axis. The rod 22b presses the body of the inner container 21 radially inward. A gap is provided between the outer peripheral surface of the rod 22b and the inner peripheral surface of the through-hole 22a.

[0018] The cap body 12 includes an attachment tube 23, a pedestal tube portion 24, and a discharge tube 25. The inner circumferential surfaces of the pedestal tube portion 24 and the discharge tube 25 are continuous without any step in the vertical direction.

[0019] The mounting tube 23 is formed in the shape of a topped tube having annular top and peripheral walls, and the inner surface of the peripheral wall is formed with a female thread that screws into a male thread formed on the outer surface of the mouth of the outer container 22. A pressing protrusion 27 that protrudes downward and is inserted into the inside of the inside plug 13 is provided on the periphery of the opening on the underside of the top wall. A plurality of pressing protrusions 27 are provided at intervals in the circumferential direction. The base cylinder portion 24 extends upward from the periphery of the opening on the upper surface of the top wall of the mounting cylinder 23, and has a male thread formed on its outer circumferential surface to which the overcap C is detachably screwed. Discharge tube 25 extends upward from the edge of the upper opening of tubular base portion 24. The outer peripheral surface of discharge tube 25 is located radially inward from the outer peripheral surface of tubular base portion 24. The upper opening of discharge tube 25 serves as discharge hole 25a through which the content liquid is discharged.

[0020] The inside plug 13 is fitted liquid-tightly into the mouth of the container body 11. The inside plug 13 is formed in a cylindrical shape with a bottom, having a bottom wall 13a with a communication hole 28 formed therein that connects the inside of the inside of the inside plug 13 with the inside of the container body 11. The upper end of the inside plug 13 is formed with a flange portion 13b that protrudes radially outward and extends continuously around the entire circumference. The flange portion 13b is located on the upper opening edge of the mouth of the container body 11.

[0021] A seat ring 26 is provided at the upper opening of the inside plug 13, protruding radially inward and extending continuously around the entire circumference. The lower surface of the seat ring 26 is located radially inward from the inner peripheral surface of the inside plug 13. The lower surface of the seat ring 26 extends upward as it moves radially inward. A pressing protrusion 27 of the cap body 12 is inserted inside the seat ring 26.

[0022] Valve element 14 is formed to be elastically deformable and is housed inside inside stopper 13. Valve element 14 is sandwiched vertically between the upper surface of bottom wall 13a of stopper 13 and push-down protrusion 27, undergoing vertical compression deformation and closing communication hole 28 while separated downward from the lower surface of seat ring 26. As shown in Figure 3, when cap body 12 is removed from the opening of container body 11, valve element 14 restores its original shape and comes into contact with the lower surface of seat ring 26, closing the upper end opening of stopper 13. The valve element 14 includes a valve body 31 , a blocking portion 32 , and an elastically deformable portion 33 .

[0023] The valve body 31 is formed in a plate shape with its front and back surfaces facing up and down, and is disposed on the upper surface of the bottom wall 13a of the inside plug 13 at the periphery of the opening of the communication hole 28 so as to be able to move upward. Closing portion 32 is formed in a plate shape with its front and back surfaces facing up and down. The outer peripheral edge of the upper surface of closing portion 32 extends downward as it moves radially outward. The upper surface of closing portion 32 is pressed down by pressing protrusion 27 of cap body 12. As a result, the outer peripheral edge of the upper surface of closing portion 32 moves downward while facing the lower surface of seat ring 26 in the up and down direction, and the inside of center plug 13 communicates with discharge hole 25a. The elastically deformable portion 33 is formed to be elastically deformable and is configured by a plurality of ring bodies that are connected in the vertical direction and open in one of the radial directions. The openings of the plurality of ring bodies are connected in the vertical direction to define a single opening. The plurality of ring bodies are open in the minor axis direction.

[0024] When the discharge container 1 is distributed or stored, as shown in Figure 3, the outer peripheral edge of the upper surface of the closure portion 32 may be abutted against the lower surface of the seat ring 26 to close the upper end opening of the inner plug 13, and a cap body without the push-down protrusion 27 may be attached to the mouth of the outer container 22 instead of the cap body 12 with the push-down protrusion 27. In this case, even if the liquid contained is a moisture-curing adhesive that tends to solidify, it can be stored for a long period of time without solidifying.

[0025] As described above, in the discharge container 1 according to this embodiment, with the overcap C removed, when the barrel of the container body 11 is pressed radially inward, for example, to apply the liquid pressure of the liquid content to the valve body 31 of the valve element 14 through the communication hole 28, the elastic deformation portion 33 of the valve element 14 undergoes compressive deformation in the vertical direction with the closing portion 32 of the valve element 14 supported by the depression protrusion 27. This causes the valve body 31 of the valve element 14 to move upward from the upper surface of the bottom wall 13a of the inner plug 13, opening the communication hole 28, and the liquid content of the container body 11 to be discharged from the discharge hole 25a through the communication hole 28, the inside of the inner plug 13, and the inside of the seat ring 26.

[0026] When cap body 12 is removed from the opening of container body 11, depression protrusion 27 opens closing portion 32 of valve body 14, and elastic deformation portion 33 restores its original shape while valve body 31 of valve body 14 remains closing communication hole 28, causing closing portion 32 of valve body 14 to abut against the underside of seat ring 26 and close the upper opening of inner plug 13. This maintains the airtightness of the interior of container body 11 and prevents outside air from entering container body 11 through the upper opening of inner plug 13.

[0027] Since the inner container 21 undergoes volume reduction and deformation as the content liquid decreases, it is possible to prevent outside air from entering the inner container 21 when the content liquid is discharged, and it is possible to prevent the content liquid of the inner container 21 from solidifying or changing in quality due to contact with the outside air. As mentioned above, even if the cap body 12 is removed from the mouth of the container body 11, it is possible to prevent the liquid contained in the inner container 21 from coming into contact with the outside air, thereby ensuring that the quality of the liquid contained in the inner container 21 is maintained.

[0028] Since the liquid content is a moisture-curing adhesive, it hardens when exposed to outside air, so even if the cap body 12 is removed from the mouth of the container body 11, the effect of preventing outside air from entering the container body 11 is significantly effective.

[0029] 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.

[0030] The body of the outer container 22 may be formed so as not to be elastically deformable. The through-hole 22a does not have to be formed in the body of the outer container 22, and the rod body 22b does not have to be provided.

[0031] In addition, within the scope of the spirit of the present invention, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, and the above-described embodiments and the above-described variations may be combined as appropriate. [Explanation of symbols]

[0032] 1 Discharge container 11 Container body 12 Cap body 13 Inner stopper 13a Bottom wall 14 Valve body 21 Inner container 22 Outer container 25a Discharge hole 26 Seat ring 27 Pressing protrusion 28 Communication hole

Claims

1. a container body in which the liquid content is accommodated; a cap body that is detachably attached to the opening of the container body and has a discharge hole for the liquid content; a cylindrical inner plug with a bottom fitted into the mouth of the container body; an elastically deformable valve body accommodated inside the inner plug, a communication hole is formed in the bottom wall of the inside plug, which communicates between the inside of the inside plug and the inside of the container body; A seat ring is provided at the upper end opening of the center plug, protruding radially inward and extending continuously around the entire circumference, The cap body is provided with a downwardly projecting pressing protrusion that is inserted into the seat ring to press down the valve body, the valve body is sandwiched between the upper surface of the bottom wall and the pressing protrusion in the vertical direction and is compressed and deformed in the vertical direction, and closes the communication hole in a state where it is separated downward from the lower surface of the seat ring, When the cap body is removed from the opening, the valve body is restored to its original shape and comes into contact with the lower surface of the seat ring, thereby closing the upper end opening of the inside plug.

2. The container body is an inner container that accommodates a liquid content and undergoes volume reduction and deformation as the liquid content decreases; The dispensing container according to claim 1 , further comprising an outer container in which the inner container is housed.

3. 3. The discharge container according to claim 1, wherein the liquid content is a moisture-curing adhesive.

Images