Dispensing container

Abstract

To make it difficult to remove a dispensing cylindrical member from a mouth part.SOLUTION: A dispensing container comprises: a bottomed cylindrical container body 11 having a mouth part 21; an inside plug member 12 that is attached to the mouth part, and on which a communication hole 25 communicating with the inside of the container body is formed; and a dispensing cylindrical member 13 that extends upward from the mouth part, and in which an upper end opening 28 communicates with the communication hole. In the dispensing cylindrical member, a fitting cylinder 31 fitted inside the mouth part is disposed, on an inner peripheral surface of the mouth part, a locking recess 22a is formed, and on an outer peripheral surface of the fitting cylinder, a locking projection 32 locked in the locking recess is formed.SELECTED DRAWING: Figure 1

Description

Technical Field

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

Background Art

[0002] Conventionally, there is known a pouring container including a bottomed cylindrical container body having a mouth portion, and a pouring cylinder member extending upward from the mouth portion and having an upper end opening communicating with the inside of the container body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a conventional pouring container, when the contents are used up, the pouring cylinder member is removed from the mouth portion, the upper end opening of the mouth portion is opened, and then, for example, other contents are poured into the container body from the mouth portion, and thereafter, the pouring cylinder member is attached to the mouth portion again. That is, there is a possibility that the pouring container may be reused. In particular, when the contents in the container body are a drug such as cosmetics, there is a risk that proper use such as usage and dosage may be impaired, and the above-described reuse of the pouring container is a concern.

[0005] The present invention provides a pouring container that can make it difficult to remove the pouring cylinder member from the mouth portion.

Means for Solving the Problems

[0006] A dispensing container according to one aspect of the present invention comprises a bottomed cylindrical container body having a mouth, a stopper member fitted to the mouth and having a communication hole formed therein that communicates with the inside of the container body, and a dispensing cylinder member extending upward from the mouth and having an upper end opening that communicates with the communication hole, wherein the dispensing cylinder member is provided with a fitting cylinder fitted into the mouth, a locking recess is formed on the inner circumferential surface of the mouth, and a locking projection is formed on the outer circumferential surface of the fitting cylinder that locks into the locking recess The inner circumferential surface of the upper end of the opening is recessed radially outward from the inner circumferential surface of the portion located below the upper end and has a first step portion facing upward, the fitting cylinder is fitted into the upper end of the opening, the lower end opening edge of the fitting cylinder abuts against or is close to the first step portion, the locking recess penetrates the upper end of the opening radially, the stopper member is formed in the shape of a top-ended cylinder having a stopper top wall and a stopper circumferential wall, the stopper circumferential wall is liquid-tightly fitted into the portion of the opening located below the upper end, the communication hole is formed in the stopper top wall, and the outer peripheral edge of the stopper top wall rests on the first step portion. .

[0007] The fitting cylinder of the dispensing cylinder member is fitted into the mouth, a locking recess is formed on the inner circumferential surface of the mouth, and a locking projection is formed on the outer circumferential surface of the fitting cylinder that locks into the locking recess. As a result, it becomes difficult to insert tools or the like between the dispensing cylinder member and the mouth, and it becomes difficult to disengage the locking projection and the locking recess, making it difficult to remove the dispensing cylinder member from the mouth.

[0008] The plug member may be provided with a support wall portion that is inserted into the fitting cylinder and abuts against or is close to the inner circumferential surface of the fitting cylinder.

[0009] Since the inner plug member is provided with a support wall portion that is inserted into the fitting cylinder and abuts against or is close to the inner circumferential surface of the fitting cylinder, by bringing the fitting cylinder into contact with the support wall portion, it is possible to restrict the diameter deformation of the fitting cylinder, and it becomes difficult to disengage the engagement between the locking projection and the locking recess.

[0010] Of the outer circumferential surface of the support wall portion, the upper end abuts against the inner circumferential surface of the fitting cylinder, the lower part located below the upper end approaches the inner circumferential surface of the fitting cylinder at a radial distance inward, and the locking projection may be located below the upper end of the support wall portion.

[0011] Of the outer circumferential surface of the support wall, the upper end abuts against the inner circumferential surface of the fitting cylinder, and the lower end located below the upper end is close to the inner circumferential surface of the fitting cylinder, radially away from the inner circumferential surface. Therefore, when fitting the upper end of the support wall into the upper end of the fitting cylinder and attaching the dispensing cylinder member and the stopper member to the opening, the lower part of the fitting cylinder can be elastically deformed radially inward as the locking projection of the fitting cylinder slides along the inner circumferential surface of the opening and reaches the locking recess, making it easy to assemble the dispensing container.

[0012] The dispensing cylinder member may be provided with a covering wall that protrudes radially outward from the fitting cylinder, covers the upper opening edge of the mouth, and abuts against or is close to the upper opening edge of the mouth.

[0013] The dispensing cylinder member is provided with a covering wall that protrudes radially outward from the fitting cylinder, covers the upper opening edge of the mouth, and abuts against or is close to the upper opening edge of the mouth. This makes it difficult to insert tools or the like between the outer surface of the fitting cylinder and the inner surface of the mouth, and ensures that the engagement between the locking projection and the locking recess is not easily disengaged. [Effects of the Invention]

[0014] According to the above embodiment of the present invention, it is possible to make it difficult to remove the dispensing cylinder member from the opening. [Brief explanation of the drawing]

[0015] [Figure 1] This is a longitudinal cross-sectional view showing the main part of a dispensing container according to one embodiment of the present invention. [Figure 2] This is a partially enlarged view of Figure 1. [Modes for carrying out the invention]

[0016] An embodiment of the present invention will be described below with reference to the drawings. As shown in Figure 1, the dispensing container 1 of this embodiment comprises a container body 11, an inner stopper member 12, a dispensing cylinder member 13, a coating member 14, and a cap 15. The contents to be contained in the container body 11 include, for example, pharmaceuticals such as cosmetics. The container body 11 is made of, for example, polyethylene terephthalate (PET), and the inner stopper member 12, dispensing cylinder member 13, and coating member 14 are made of, for example, polypropylene (PP), low-density polyethylene (LDPE), medium-density polyethylene (MDPE), and linear low-density polyethylene (LLDPE). Note that the dispensing container 1 does not necessarily have to have the coating member 14 and the cap 15.

[0017] The container body 11 is formed in a bottomed cylindrical shape having a mouth 21 and a bottom, while the inner stopper member 12, pouring cylinder member 13, coating member 14, and cap 15 are formed in a topped cylindrical shape. The container body 11, inner stopper member 12, pouring cylinder member 13, coating member 14, and cap 15 are arranged coaxially with a common axis O. The side of the container body 11 with the opening 21 that aligns with the common axis O is called the upper side, and the side of the container body 11 with the bottom that aligns with the common axis O is called the lower side. The direction along the common axis O is called the vertical direction. The direction that intersects the common axis O when viewed from the vertical direction is called the radial direction, and the direction that circles around the common axis O when viewed from the vertical direction is called the circumferential direction.

[0018] The inner surface of the upper end portion 22 of the mouth portion 21 of the container body 11 is recessed radially outward compared to the inner surface of the portion located below the upper end portion 22. As a result, an upward-facing first step portion 21a is provided on the inner surface of the mouth portion 21. A locking recess 22a is formed on the inner surface of the upper end portion 22 of the mouth portion 21. Multiple locking recesses 22a are provided at intervals in the circumferential direction. The locking recesses 22a penetrate the mouth portion 21 radially. Note that the locking recesses 22a may be non-penetrating recesses formed on the inner surface of the mouth portion 21. A male threaded portion is formed on the outer circumferential surface of the portion of the opening 21 located below the upper end portion 22. The cap 15 is removably screwed onto the male threaded portion. The cap 15 may also be removably fitted onto the opening 21 or otherwise.

[0019] The middle plug member 12 is formed in a roofed cylindrical shape having a middle plug top wall 23 and a middle plug peripheral wall 24. The middle plug peripheral wall 24 is liquid-tightly fitted within a portion of the mouth portion 21 that is located below the upper end portion 22. Thereby, the middle plug member 12 is attached to the mouth portion 21. A communication hole 25 that communicates with the inside of the container body 11 is formed in the middle plug top wall 23. The communication hole 25 is disposed coaxially with the common axis O. The outer peripheral edge portion of the middle plug top wall 23 is placed on the first step portion 21a within the mouth portion 21.

[0020] The pouring cylinder member 13 is formed in a roofed cylindrical shape having a pouring top wall 26 and a pouring peripheral wall 27, and extends upward from the mouth portion 21. The lower end opening edge of the pouring peripheral wall 27 abuts or is close to the upper surface of the middle plug top wall 23. <00….95>The pouring top wall 26 extends downward as it goes radially outward. A pouring hole (upper end opening) 28 that communicates with the communication hole 25 is formed in the pouring top wall 26. The pouring hole 28 is disposed coaxially with the common axis O. A pouring cylinder 26a that protrudes upward is formed at the opening peripheral edge portion of the pouring hole 28 on the upper surface of the pouring top wall 26. A seal protrusion 15b provided in the cap 15 is detachably externally fitted to the pouring cylinder 26a. The seal protrusion 15b extends continuously over the entire circumferential length.

[0021] The application member 14 includes an application plug 35 and a spring member 36. The application member 14 is formed of a resin material and is integrally formed with the middle plug member 12.

[0022] The spring member 36 extends upward from the inner peripheral surface of the communication hole 25. The coating plug 35 is formed in a topped cylindrical shape having a coating top wall 35a and a coating peripheral wall, and extends upward from the upper end of the spring member 36. The coating plug 35 is inserted into the dispensing hole 28 and the dispensing cylinder 26a so as to be movable downward in an upward biased state. The coating top wall 35a protrudes upward from inside the dispensing cylinder 26a. Of the coating peripheral wall, the diameter of the lower end is larger than the diameter of the upper part located above the lower end, and a second stage portion 35b facing upward is formed on the outer circumferential surface of the coating peripheral wall at the connection between the lower end and the upper part. The second stage portion 35b extends downward as it is directed radially outward. The second stage portion 35b abuts toward the opening peripheral edge of the dispensing hole 28 on the lower surface of the dispensing top wall 26 so as to be able to move away downward, blocking communication between the communication hole 25 and the dispensing hole 28.

[0023] In this embodiment, the dispensing cylinder member 13 is provided with a fitting cylinder 31 fitted into the mouth portion 21. The fitting cylinder 31 extends continuously along its entire length in the circumferential direction. The fitting cylinder 31 is fitted into the upper end portion 22 of the mouth portion 21. The lower end opening edge of the fitting cylinder 31 abuts against or is close to the first step portion 21a inside the mouth portion 21. The fitting cylinder 31 surrounds the lower end of the dispensing peripheral wall 27 from the radial outside. The lower end of the fitting cylinder 31 is located below the lower end of the dispensing peripheral wall 27.

[0024] A locking projection 32 is formed on the outer circumferential surface of the fitting cylinder 31, which is locked into the locking recess 22a of the mouth portion 21. The locking projection 32 is provided at the lower end of the fitting cylinder 31. Multiple locking projections 32 are provided at intervals in the circumferential direction. Each of the multiple locking projections 32 is individually locked into one of the multiple locking recesses 22a. Here, the lower end of the dispensing peripheral wall 27 is provided with a covering wall portion 33 that protrudes radially outward and extends continuously along the entire length of the circumferential surface. The fitting cylinder 31 protrudes downward from the portion of the covering wall portion 33 that is located radially inward from the outer peripheral edge. The outer peripheral edge of the covering wall portion 33 protrudes radially outward from the fitting cylinder 31, covering the upper opening edge of the mouth portion 21, and is in contact with or close to the upper opening edge of the mouth portion 21. The outer peripheral surface of the covering wall portion 33 is located at the same radial position as the outer peripheral surface of the mouth portion 21. The pressing wall portion 15a, provided inside the cap 15, is pressed against the upper surface of the covering wall portion 33. The pressing wall portion 15a has its front and back surfaces facing vertically and extends continuously along its entire circumferential length.

[0025] In this embodiment, the inner plug member 12 is provided with a support wall portion 34 that is inserted into the fitting cylinder 31 and contacts or is close to the inner circumferential surface of the fitting cylinder 31. The support wall portion 34 protrudes upward from the outer peripheral edge of the top wall 23 of the inner plug. The support wall portion 34 is inserted between the inner peripheral surface of the fitting cylinder 31 and the outer peripheral surface of the lower end of the dispensing peripheral wall 27. The support wall portion 34 is in contact with the inner peripheral surface of the fitting cylinder 31, the outer peripheral surface of the lower end of the dispensing peripheral wall 27, and the lower surface of the covering wall portion 33.

[0026] Of the outer circumferential surface of the support wall portion 34, the upper end portion 34a abuts against the inner circumferential surface of the fitting cylinder 31, while the lower portion 34b, located below the upper end portion 34a, is located close to the inner circumferential surface of the fitting cylinder 31, but radially inward. The upper end portion 34a of the support wall portion 34 is located above the locking projection portion 32. The upper end opening edge of the support wall portion 34 is formed in a curved shape that protrudes upward. As shown in Figure 2, the outer diameter of the upper end 34a of the support wall 34 is larger than the outer diameter of the lower end 34b, and a downward-facing third stage 34c is formed on the outer circumferential surface of the support wall 34 at the connection point between the upper end 34a and the lower end 34b. Here, an undercut projection 31a is formed on the inner circumferential surface of the fitting cylinder 31, and the third stage portion 34c is in contact with or close to the upper end of the undercut projection 31a.

[0027] As described above, according to the dispensing container 1 of this embodiment, the fitting cylinder 31 of the dispensing cylinder member 13 is fitted into the mouth portion 21, a locking recess 22a is formed on the inner circumferential surface of the mouth portion 21, and a locking projection 32 that locks into the locking recess 22a is formed on the outer circumferential surface of the fitting cylinder 31. Therefore, for example, it becomes difficult to insert a tool or the like between the dispensing cylinder member 13 and the mouth portion 21, and it becomes difficult to disengage the locking projection 32 from the locking recess 22a, making it difficult to remove the dispensing cylinder member 13 from the mouth portion 21.

[0028] Since the inner plug member 12 is provided with a support wall portion 34 that is inserted into the fitting cylinder 31 and abuts against or is close to the inner circumferential surface of the fitting cylinder 31, by bringing the fitting cylinder 31 into contact with the support wall portion 34, it is possible to restrict the diameter deformation of the fitting cylinder 31, and it becomes difficult to reliably disengage the engagement between the locking projection 32 and the locking recess 22a.

[0029] Of the outer circumferential surface of the support wall portion 34, the upper end portion 34a abuts against the inner circumferential surface of the fitting cylinder 31, and the lower portion 34b, located below the upper end portion 34a, is located radially inward and close to the inner circumferential surface of the fitting cylinder 31. Therefore, when fitting the upper end portion 34a of the support wall portion 34 into the upper end portion of the fitting cylinder 31 and attaching the dispensing cylinder member 13 and the inner stopper member 12 to the opening portion 21, the lower part of the fitting cylinder 31 can be elastically deformed radially inward as the locking projection 32 of the fitting cylinder 31 slides along the inner circumferential surface of the opening portion 21 and reaches the locking recess 22a, making it easy to assemble the dispensing container 1.

[0030] The dispensing cylinder member 13 is provided with a covering wall portion 33 that protrudes radially outward from the fitting cylinder 31, covers the upper opening edge of the mouth portion 21, and abuts against or is close to the upper opening edge of the mouth portion 21. This makes it difficult to insert tools or the like between the outer circumferential surface of the fitting cylinder 31 and the inner circumferential surface of the mouth portion 21, and makes it difficult to disengage the locking projection 32 and the locking recess 22a.

[0031] Furthermore, the technical scope of the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention.

[0032] For example, it is not necessary to provide a support wall portion 34 on the plug member 12. The outer circumferential surface of the support wall 34 may be brought into contact with the inner circumferential surface of the fitting cylinder 31 along its entire length in the vertical direction. It is not necessary to provide a covering wall portion 33 on the dispensing cylinder member 13. It is not necessary to form a dispensing tube 26a on the top wall 26 of the dispensing nozzle. The fitting cylinder 31 may, for example, extend intermittently along its entire circumferential length.

[0033] Furthermore, without departing from the spirit of the present invention, the components in the above embodiments may be replaced with well-known components as appropriate, and the above embodiments and modifications may be combined as appropriate. [Explanation of symbols]

[0034] 1 Dispensing container 11 Container body 12. Inner plug member 13 Dispensing cylinder member 21 Mouth 22a Locking recess 25 Communication hole 28 Dispensing hole (opening at the top) 31 Fitting cylinder 32 Locking projection 33 Covered wall section 34 Support wall section 34a Upper end 34b Lower part

Claims

1. A cylindrical container body with a bottom and an opening, A stopper member is attached to the opening and has a communication hole formed therein that communicates with the inside of the container body, The system includes a dispensing cylinder member that extends upward from the mouth portion and whose upper end opening communicates with the communication hole, The dispensing cylinder member is provided with a fitting cylinder fitted into the opening, A locking recess is formed on the inner circumferential surface of the opening. A locking projection is formed on the outer circumferential surface of the fitting cylinder, which is locked into the locking recess. Of the aforementioned opening, the inner circumferential surface of the upper end has a first stepped portion that is recessed radially outward from the inner circumferential surface of the portion located below the upper end and faces upward. The fitting cylinder is fitted into the upper end of the opening, The lower end opening edge of the fitting cylinder abuts against or is close to the first step portion. The locking recess extends radially through the upper end of the opening, The aforementioned plug member is formed in a top-shaped cylindrical form having a plug top wall and a plug circumferential wall, The inner plug's peripheral wall is fitted liquid-tightly into the portion of the opening located below the upper end. A dispensing container in which the communication hole is formed in the top wall of the inner stopper, and the outer peripheral edge of the top wall of the inner stopper is placed on the first step.

2. The dispensing container according to claim 1, wherein the stopper member is provided with a support wall portion that is inserted into the fitting cylinder and abuts against or is close to the inner circumferential surface of the fitting cylinder.

3. Of the outer circumferential surface of the support wall portion, the upper end abuts against the inner circumferential surface of the fitting cylinder, and the lower part located below the upper end approaches the inner circumferential surface of the fitting cylinder, moving radially inward. The dispensing container according to claim 2, wherein the locking projection is located below the upper end of the support wall.

4. The dispensing container according to any one of claims 1 to 3, wherein the dispensing cylinder member is provided with a covering wall portion that protrudes radially outward from the fitting cylinder, covers the upper opening edge of the mouth, and abuts against or is close to the upper opening edge of the mouth.

Images