JP5450264B2 - Dispensing container - Google Patents

Description

  The present invention relates to a dispensing container.

Conventionally, for example, as shown in Patent Document 1 below, a highly flexible inner container that accommodates contents and is deformed in accordance with a decrease in internal pressure, and the inner container is housed and elastically deformable. There is known a pouring container including a double container including an outer container, and a pouring body that is attached to the mouth of the double container and has a pouring outlet formed therein.
The outer container is formed with an intake hole through which the outside air is sucked between the inner container and the extraction body prevents the backflow of the contents into the inner container and the inflow of the outside air, while the inner pressure fluctuation of the inner container is prevented. A first check valve that switches between communication and disconnection between the spout and the inner container by actuating by means of, and a second check valve that opens and closes the intake hole without causing air to flow out of the intake hole. I have.
In this dispensing container, when the double container is pressed toward the inside in the radial direction to increase the internal pressure of the inner container, the first check valve is opened and the outlet and the inner container communicate with each other. The contents inside are poured out from the spout.
For example, when the pressing of the double container is stopped and the increase in the internal pressure of the inner container is stopped, the first check valve is closed, the communication between the spout and the inner container is shut off, and the inner container remains deformed and reduced in volume. The outer container is about to be restored and deformed. At this time, the second check valve is opened by the negative pressure generated between the inner container and the outer container, and the outside air is sucked between the inner container and the outer container through the intake hole.

JP 2004-59131 A

However, in the conventional pouring container, even when the outer container is pushed slightly inward in the radial direction, for example, by gripping the pouring container, the internal pressure of the inner container rises and the first check Since the valve opens, the contents may be unexpectedly poured out.
This problem may become particularly apparent when the double container is made lighter (thin) in consideration of environmental problems.

  The present invention has been made in view of the above-described circumstances, and the object thereof is to prevent the contents from being unexpectedly poured out when the outer container is slightly pushed inward in the radial direction. It is to provide a discharge container that can be used.

In order to solve the above problems, the present invention proposes the following means.
The dispensing container according to the present invention includes an inner container that contains the contents and has flexibility, and an elastically deformable outer container in which an intake hole for sucking outside air is formed between the inner container and the inner container. A double container, and a pouring body that is attached to the mouth of the double container and has a communication opening that communicates with the inside of the inner container and is capable of pouring the contents through the communication opening. The pouring body includes a pouring wall portion in which the communication opening is formed and a film covering the communication opening is disposed on an upper surface, the film surrounding the communication opening and at least in the circumferential direction. A portion of the film is fixed to the upper surface of the pouring wall portion through an adhering portion that is open, and an inner portion of the adhering portion of the film is in close contact with the upper surface of the pouring wall portion so as to be separable. The opening is sealed, and the outside and the intake hole Allow outside air to flow from the outside to the inner container and the outer container, and prevent outside air from flowing between the inner container and the outer container into the communicating outside air inflow path. The check valve is provided, and a pressure relief path is formed between the valve body of the check valve and the valve seat.

In the present invention, in a state before use, the film covering the communication opening is brought into close contact with the upper surface of the pouring wall portion, and the communication opening is sealed with the film, so that the sealing of the inner container is ensured.
In addition, when the outer container is pushed slightly inward in the radial direction, for example, by gripping the double container, the internal pressure of the space between the inner container and the outer container tends to increase. The internal pressure is released to the outside through the pressure relief path. Thereby, it can suppress that the internal pressure of an inner container raises.

  Moreover, when using this extraction | pouring container, for example, an outer container is largely pushed toward the inner side of radial direction, and a double container is pressed. As a result, the internal pressure of the space between the inner container and the outer container rises above the pressure that can be released through the pressure relief passage, and this internal pressure acts on the inner container, so that the internal pressure of the inner container rises. Become. Then, the film is pressed by the contents flowing out from the communication opening, and the inner portion of the fixed portion of the film swells away from the upper surface of the pouring wall portion into a dome shape that protrudes upward. Thus, a flow path communicating with the communication opening is formed between the film and the upper surface of the pouring wall portion, and a spout opening opened to the outside is formed at the opening portion of the fixing portion. As a result, the content flowing out from the communication opening is poured out from the spout through the flow path.

  When the internal pressure of the space between the inner container and the outer container increases, the valve body of the check valve is brought into pressure contact with the valve seat. This makes it possible to prevent the internal pressure from being released from the pressure relief path, effectively increasing the internal pressure of the space between the inner container and the outer container, and reliably increasing the internal pressure of the inner container. it can.

  After that, by stopping or releasing the pressing of the double container, when the outflow of the contents from the communication opening is stopped, the pressing force by the contents applied to the film is released, and the pouring wall portion The film separated from the upper surface of the film is restored to the original state and is brought into close contact with the upper surface of the pouring wall portion. As a result, the spout is closed and the communication opening is sealed by the film, so that the inner container is sealed again.

  Here, when the pressure of the double container is released in a state where the sealing property of the inner container is secured, the outer container tends to be restored and deformed while the inner container is reduced in volume. At this time, negative pressure is generated between the inner container and the outer container, and this negative pressure acts on the valve body of the check valve through the intake hole, so that the valve body is separated from the valve seat, and the outside air inflow path The outside and the intake hole are communicated with each other. Then, outside air flows into the outside air inflow path from the outside, and this outside air is sucked between the inner container and the outer container through the intake hole.

  In addition, when the contents inside the inner container flow out from the communication opening, instead of pressing the double container as described above, the double container is inclined with the opening portion of the fixing portion facing downward. By setting the pouring container to the pouring posture, it is possible to cause the contents to flow out of the communication opening by the weight of the contents. In this case, in order to stop the outflow of the contents from the communication opening, the pouring container may be returned to the original upright posture.

  As described above, the communication opening is sealed by the film, so that the sealing of the inner container is ensured. Therefore, the contents are unexpectedly poured out from the spout when the dispensing container is distributed or stored. Can be suppressed.

Furthermore, since the spout can be opened and closed with a simple configuration in which the film is fixed to the upper surface of the spout wall portion of the spout body, the manufacture of the spout container can be facilitated.
Also, the contents are discharged from the communication opening and the film is pressed by the contents to open the spout and the contents are poured out, and by stopping the outflow of the contents from the communication opening. Since the outlet is closed and the communication opening is sealed, the operation of pouring the contents can be easily performed. That is, it is only necessary to perform the operation of causing the contents to flow out of the communication opening, and it is not necessary to separately perform the operation of opening and closing the spout, and the operability can be improved.

  The pouring body includes the pouring wall portion and a movable portion that can move up and down, and switching between communication between the communication opening and the inside of the inner container and blocking of the movable portion as the movable portion moves up and down. An overcap that covers the movable portion is detachably attached to the extraction body, and the overcap engages with the movable portion to attach and detach the overcap. Along with this, an engaging portion that moves the movable portion up and down may be provided.

  In this case, in the state before use with the overcap attached to the pouring body, the film covering the communication opening is in close contact with the upper surface of the pouring wall portion, and the communication opening is sealed by the film. Since the communication between the inside of the inner container and the communication opening is blocked by the valve body, the inner container is further sealed.

Moreover, when using this pouring container, the overcap is detached from the pouring body. Then, the engagement part moves up the movable part in accordance with the detachment operation, so that the disconnection of the communication between the inside of the inner container and the communication opening by the dispensing valve body is released.
Then, after the use of the dispensing container is finished, the overcap is attached to the dispensing body. Then, the engagement part moves the movable part downward along with the mounting operation, and the communication between the inside of the inner container and the communication opening is blocked by the dispensing valve body.

As described above, since the communication between the inside of the inner container and the communication opening is blocked by the dispensing valve element, the hermeticity of the inner container is further secured. , The content can be further prevented from being unexpectedly poured out from the spout.
In addition, the communication between the inside of the inner container and the communication opening by the pouring valve body and the blocking thereof can be switched in accordance with the overcap attaching / detaching operation, so that the operation of the pouring operation can be performed while suppressing the leakage of the contents. The property can be improved.

  According to the dispensing container according to the present invention, when the outer container is pushed slightly inward in the radial direction, it is possible to suppress an increase in the internal pressure of the inner container, and the contents are unexpectedly poured out. Can be suppressed.

It is a longitudinal cross-sectional view of the principal part of the extraction container which concerns on 1st Embodiment of this invention. FIG. 2 is an enlarged longitudinal sectional view in the vicinity of a check valve of the dispensing container shown in FIG. It is a longitudinal cross-sectional view of the state which removed the overcap in the extraction container shown in FIG. It is a longitudinal cross-sectional view of the state which removed the overcap in the extraction container shown in FIG. It is a longitudinal cross-sectional view of the principal part of the extraction container which concerns on 2nd Embodiment of this invention. It is a longitudinal cross-sectional view of the state which removed the overcap in the extraction container shown in FIG.

(First embodiment)
Hereinafter, with reference to drawings, the pouring container concerning a 1st embodiment of the present invention is explained.
As shown in FIG. 1, the dispensing container 1 has a flexible inner container 2 that accommodates contents and an intake hole 61 that sucks outside air between the inner container 2 and the inner container 2. A double container 4 having an elastically deformable outer container 3, and a communication opening 71 that is attached to the mouth portion 4 a of the double container 4 and communicates with the inside of the inner container 2 is formed, and the contents are formed through the communication opening 71. And an overcap 6 that is detachably attached to the extraction body 5.

  In the present embodiment, the overcap 6 is connected to the pouring body 5 via the hinge portion 7, and the double container 4 and the overcap 6 are arranged with their central axes positioned on a common axis. It is installed. Hereinafter, this common axis is referred to as the container axis O, the direction along the container axis O is referred to as the vertical direction, the overcap 6 side along the vertical direction is referred to as the upper side, and the double container 4 side is referred to as the lower side. A direction perpendicular to the container axis O is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction. Furthermore, among the radial directions, a direction passing through the hinge portion 7 is referred to as a front-rear direction, a direction in which the hinge portion 7 is positioned with respect to the container axis O along the front-rear direction is referred to as a rear side, and the opposite side is referred to as a front side.

  As the double container 4, a known general configuration can be adopted, and in the illustrated example, a so-called Delami bottle is adopted. In this double container 4, an inner container (inner layer) 2 is detachably laminated on the inner surface of an outer container (outer layer) 3. The double container 4 is formed by, for example, blow molding a co-extruded two-layered parison, the outer container 3 is made of polyethylene resin, and the inner container 2 is compatible with the polyethylene resin. It is made of a polyamide-based synthetic resin without any other material.

  In addition, as the double container 4, for example, a configuration in which the individually deformable inner container 2 capable of volume reduction and the outer container 3 that can be elastically deformed are combined in a later process, or the inner container is included in the outer container 3. A configuration in which the inner container 2 is squeezed and deformed by introducing outside air between the outer container 3 and the inner container 2 as the contents are poured out can be employed. Further, the double container 4 may have a structure in which a space is formed between the inner container 2 and the outer container 3 before using the dispensing container 1.

The mouth 4a of the double container 4 has a structure in which the mouth 2a of the inner container 2 and the mouth 3a of the outer container 3 are laminated. The mouth portion 4a of the double container 4 has a two-stage cylindrical shape including an upper cylindrical portion 8 positioned on the upper side and a lower cylindrical portion 9 positioned on the lower side and formed with a larger diameter than the upper cylindrical portion 8. Is formed.
A portion of the upper cylinder portion 8 constituted by the mouth portion 3a of the outer container 3 has a first protrusion 8a protruding outward in the radial direction and the intake hole 61 from the upper side to the lower side. It is formed in order. The first protrusion 8a extends over the entire circumference in the circumferential direction, and a vertical groove 8b extending in the vertical direction is formed at a portion of the first protrusion 8a where the position of the intake hole 61 coincides with the circumferential direction.

  The pouring body 5 is mounted on the mouth portion 4a of the double container 4 and disposed on the mouth portion 4a, and is mounted on the mouth portion 4a of the double container 4 and the mouth portion 4a and the interior portion. 10 has an exterior portion 11 that surrounds 10 from the outside in the radial direction, and a pouring wall portion 13 in which the communication opening 71 is formed and a film 12 that covers the communication opening 71 is disposed on the upper surface, and is movable up and down. And a pouring valve body 15 that switches between communication between the communication opening 71 and the inside of the inner container 2 and blocking of the communication with the vertical movement of the movable portion 14.

  The interior part 10 includes a seal cylinder part 16 fitted in the mouth part 4a of the double container 4, an inner connection ring part 17a projecting radially inward from the seal cylinder part 16, and an inner connection ring part. An inner cylinder portion 18 extending upward from the inner peripheral edge of 17a and a radially outward projection from the upper end edge of the seal cylinder portion 16 are disposed on the mouth 4a of the double container 4 The outer connecting ring portion 17b and the outer cylinder portion 19 extending upward from the outer peripheral edge portion of the outer connecting ring portion 17b are provided. The seal cylinder part 16, the inner connection ring part 17 a, the outer connection ring part 17 b, the inner cylinder part 18 and the outer cylinder part 19 are arranged coaxially with the container shaft O.

The exterior portion 11 is formed in a cylindrical shape that opens in both the upper and lower directions. A second protrusion 11 a that is undercut fitted to the first protrusion 8 a of the mouth portion 4 a of the double container 4 is provided on the exterior portion 11 so as to protrude inward in the radial direction.
In addition, the lower end portion located below the second protrusion 11a in the exterior portion 11 is externally fitted in the lower cylindrical portion 9 of the mouth portion 4a of the double container 4 in an airtight state, and the lower side of the exterior portion 11 The communication between the intake hole 61 that has passed through and the outside of the dispensing container 1 is blocked. Between the exterior part 11 and the upper cylinder part 8 of the mouth part 4a of the double container 4, a gap space 62 in which an intake hole 61 is opened is disposed.
Further, the outer cylinder portion 19 of the interior portion 10 is fitted in the upper end portion of the exterior portion 11, and an opening portion 63 communicating with the gap space 62 is formed in the outer cylinder portion 19. .

The movable portion 14 includes a pouring member 20 having the pouring wall portion 13 and a mounting member 21 to which the pouring member 20 is attached. positioned.
The pouring member 20 extends downward from the pouring wall portion 13, the pouring wall portion 13, and communicates with the communicating cylinder portion 22 whose inside communicates with the communicating opening 71, and from the lower end of the communicating cylinder portion 22. A flange portion 23 projecting outward in the radial direction and a fitting tube portion 24 extending downward from the flange portion 23 are provided. The communication cylinder part 22, the flange part 23, and the fitting cylinder part 24 are arranged coaxially with the container axis O.

The extraction wall portion 13 is formed in a plate shape extending in the front-rear direction, and gradually inclines upward from the rear toward the front.
Moreover, the upper surface of the extraction | pouring wall part 13 is formed in the concave curved surface shape. That is, the pouring wall portion 13 gradually rises from the center toward the outside in the left-right direction orthogonal to the front-rear direction in the radial direction, and is curved in a longitudinal cross-sectional view as a whole.

Further, a lip portion 25 whose upper surface is inclined with respect to the upper surface of the pouring wall portion 13 protrudes forward from the front end edge of the pouring wall portion 13.
The lip portion 25 is formed in a shape that warps downward toward the front end, and the upper surface of the lip portion 25 is inclined downward with respect to the upper surface of the extraction wall portion 13.

  The film 12 can be elastically deformed, and the outer edge of the film 12 is located within the outer edge of the pouring wall portion 13. The film 12 is fixed to the upper surface of the pouring wall portion 13 via a fixing portion 26. The fixing portion 26 surrounds the communication opening 71 and is opened at the front end portion of the pouring wall portion 13. As a result, an opening portion 26a of the fixing portion 26 in which the fixing portion 26 is opened and the film 12 and the extraction wall portion 13 are not fixed is formed at the front end portion of the pouring wall portion 13, and this opening portion is formed. 26 a is a spout 27.

  Further, a non-fixed portion 26 b that is an inner portion of the fixed portion 26 in the film 12 is in close contact with the upper surface of the extraction wall portion 13. Thereby, the communication opening 71 is sealed by the film 12, and the airtightness of the inner container 2 is ensured. Further, the non-fixed portion 26 b of the film 12 can be separated from the upper surface of the extraction wall portion 13 by elastically bulging (reverse deformation) in a direction away from the upper surface of the extraction wall portion 13.

In addition, as a fixing method with respect to the upper surface of the extraction wall part 13 of the film 12, the adhesion | attachment using an adhesive agent etc. other than welding, such as heat welding, may be sufficient.
Moreover, although it is preferable to use the film which has a stretching property as the film 12, when the upper surface of the extraction | pouring wall part 13 is formed in the concave curved surface shape like this embodiment, it has a stretching property. A general film which does not have can also be used suitably.

  The flange portion 23 is located on the inner side in the radial direction of the outer tube portion 19 of the interior portion 10 and above the inner tube portion 18, and the fitting tube portion 24 includes the outer tube portion 19 and the inner tube. It is inserted between the part 18.

  The mounting member 21 is fitted in the fitting cylinder part 24 and surrounds the inner cylinder part 18 of the interior part 10 from the outside in the radial direction, and from the upper end of the surrounding cylinder part 28 to the inside in the radial direction. An inner flange portion 29 protruding toward the upper side of the inner cylinder portion 18 and a guide cylinder extending downward from the inner flange portion 29 and fitted in the inner cylinder portion 18 so as to be slidable in the vertical direction. Part 30, a valve seat cylinder part 31 extending downward from the inner peripheral edge of the inner flange part 29 and positioned inside the guide cylinder part 30, and radially outward from the lower end of the surrounding cylinder part 28. An outer flange portion 32 that extends and is positioned below the fitting cylinder portion 24, and protrudes upward from the outer peripheral edge of the outer flange portion 32, and surrounds the fitting cylinder portion 24 from the outside in the radial direction. Mounting cylinder part 33 to be attached, and a pouring member extending upward from the outer peripheral surface of the mounting cylinder part 33 0 of the flange portion 23 and the connecting tubular portion 34 which surrounds the outside in the radial direction, and a.

  Between the mounting cylinder part 33 and the fitting cylinder part 24 of the extraction member 20, the 1st clearance gap 64 extended in an up-down direction is provided. Further, a second gap 65 that opens upward is provided between the connecting cylinder portion 34 and the flange portion 23 of the extraction member 20.

The pouring member 20 and the mounting member 21 are provided with positioning portions 35b and 35a, respectively, which engage with each other to determine the circumferential position.
The first positioning portion 35a of the mounting member 21 is formed in a vertical rib shape extending in the vertical direction on the inner peripheral surface of the mounting cylinder portion 33 and arranged in a plurality at intervals in the circumferential direction. The lower end edge is connected to the upper surface of the outer flange portion 32. The second positioning portion 35 b of the dispensing member 20 is formed in a vertical rib shape extending in the vertical direction on the outer peripheral surface of the fitting cylinder portion 24, and the upper end edge of the second positioning portion 35 b is connected to the lower surface of the flange portion 23. Yes. The second positioning portion 35b is located between the first positioning portions 35a adjacent in the circumferential direction, and the first positioning portion 35a and the second positioning portion 35b are engaged in the circumferential direction.

The movable portion 14 is connected to the entire periphery via the exterior portion 11 and the elastic connecting portion 36. In the illustrated example, the elastic connecting portion 36 is formed in an annular shape, and the inner peripheral edge of the elastic connecting portion 36 is connected to the upper end edge of the connecting cylinder portion 34 of the movable portion 14, and the elastic connecting portion 36 The outer peripheral edge is connected to the upper end edge of the exterior part 11. Moreover, the elastic connection part 36 is gradually going downward as it goes inside from the outer side in the radial direction.
As a result, the annular space defined by the inner cylinder part 18, the inner connection ring part 17 a, the seal cylinder part 16, the outer connection ring part 17 b and the outer cylinder part 19 of the interior part 10 becomes the elastic connection part 36 and the movable part 14. Is closed from above by the mounting member 21 to form an internal space 66 of the extraction body 5.

  The pouring valve body 15 is formed in a cylindrical shape arranged coaxially with the container axis O, and a plurality of lower ends of the pouring valve body 15 extend in the radial direction and are spaced apart in the circumferential direction. It is connected to the inner peripheral edge of the inner connecting ring portion 17a through the bridge portion 37. Moreover, the upper end part of the extraction | pouring valve body 15 is fitted in the lower end part of the said valve seat cylinder part 31 of the movable part 14 so that attachment or detachment is possible liquid-tightly. Thereby, the communication between the inside of the inner container 2 and the communication opening 71 and the blocking thereof are switched.

  In the illustrated example, the inside of the inner container 2 and the communication opening 71 are the inside of the seal tube portion 16 of the interior portion 10, the inside of the inner connecting ring portion 17 a, the inside of the inner tube portion 18, and the guide tube of the movable portion 14. The inside of the portion 30, the inside of the valve seat tube portion 31, and the inside of the communication tube portion 22 are communicated. Below, the connection path 70 is connected to the inside of the seal cylinder part 16, the inside of the inner connecting ring part 17 a, the inside of the inner cylinder part 18, the inside of the guide cylinder part 30, the inside of the valve seat cylinder part 31, and the inside of the communication cylinder part 22. That's it.

Here, a communication hole 67 that connects the internal space 66 and the first gap 64 is formed in the outer flange portion 32 of the movable portion 14. Further, in the illustrated example, a communication groove 68 that connects the first gap 64 and the second gap 65 is formed on the lower surface of the flange portion 23 of the movable portion 14.
Thereby, in a state where the overcap 6 is detached from the pouring body 5, the intake hole 61 of the mouth portion 4 a of the double container 4 has the gap space 62, the opening 63, the internal space 66, the communication hole 67, The outside air communication path 60 including the first gap 64, the communication groove 68, and the second gap 65 communicates with the outside.

  In the internal space 66, a cylindrical portion 41 that is fitted on the mounting cylinder portion 33 of the movable portion 14 and has a lower end portion projecting downward from the mounting cylinder portion 33, and a lower end portion of the cylindrical portion 41. A valve member (valve element) 40 provided with a valve main body 39 projecting annularly toward the inside in the radial direction and having an inner peripheral edge abutting the lower end edge (valve seat) 42 of the surrounding cylinder part 28 over the entire circumference. Is provided.

In the present embodiment, the valve main body 39 is elastically deformed, and the inner peripheral edge 39 a of the valve main body 39 abuts on and separates from the lower end edge 42 of the surrounding cylinder portion 28, so that the valve main body 39 can freely open and close the communication hole 67. Is blocked. That is, the valve member 40 and the lower end edge 42 of the surrounding cylinder portion 28 allow the outside air to flow into the space between the inner container 2 and the outer container 3 from the outside, and from between the inner container 2 and the outer container 3 to the outside. The check valve 38 is configured to prevent the outside air from flowing into the air.
As shown in FIG. 2, the lower end edge 42 of the surrounding tube portion 28 is a smooth surface extending in the radial direction and facing downward, and the inner peripheral edge 39a of the valve body 39 is convex upward. It is curved.

  In the present embodiment, a pressure relief passage 43 is formed between the valve member 40 and the lower end edge 42 of the surrounding tube portion 28. In the illustrated example, the pressure relief passage 43 is formed in a lateral groove shape extending in the radial direction at the lower end edge 42 of the surrounding tube portion 28, and the internal space 66 and the outside communicate with each other through the pressure relief passage 43. 67 is communicated.

  As shown in FIG. 1, the overcap 6 is attached to the pouring body 5 so as to cover the movable portion 14 of the pouring body 5. In the illustrated example, the overcap 6 is placed in the lower end portion of the overcap 6. The upper end part of the exterior part 11 is fitted. In the illustrated example, a knob 44 protrudes forward from the front portion of the overcap 6, and the knob 44 has a weakened portion 45 a that can be broken through the weakened portion 45 a. A turn portion 45 connected to the front portion is engaged. Thereby, the overcap 6 is restricted from turning upward around the hinge portion 7.

The overcap 6 is provided with an engaging portion 46 that engages with the movable portion 14. A pair of engaging portions 46 are disposed so as to sandwich the extraction wall portion 13 in the left-right direction. The engaging portions 46 include a main body plate 47 extending downward from the overcap 6, and an engaging protrusion 48 protruding from the main body plate 47 and detachably engaged with the movable portion 14 from below. It is equipped with.
In the illustrated example, the front and back surfaces of the main body plate 47 extend in the front-rear direction, and the engagement protrusions 48 are a pair of engaged members projecting from the communication tube portion 22 of the movable portion 14 on both sides in the left-right direction. The joint portion 49 is engaged from below.

Next, the effect | action of the extraction container 1 comprised as mentioned above is demonstrated.
First, in the state before use in which the overcap 6 is attached to the extraction body 5, the communication between the inside of the inner container 2 and the communication opening 71 is blocked by the extraction valve body 15 and the communication opening 71 is covered. The film 12 is brought into close contact with the upper surface of the pouring wall portion 13 and the communication opening 71 is sealed by the film 12, so that the inner container 2 is sealed.

Further, when using the pouring container 1, first, after turning the turning portion 45, the overcap 6 is rotated around the hinge portion 7 to be detached from the pouring body 5. Then, as shown in FIG. 3, the engaging portion 46 moves upward while the engaging protrusion 48 engages with the engaged portion 49 of the movable portion 14 in accordance with the disengagement operation. The movable portion 14 moves upward while the portion 36 is reversely deformed. Thereby, the valve seat cylinder part 31 of the movable part 14 is separated upward from the extraction valve body 15, and the inside of the inner container 2 and the communication opening 71 communicate with each other. In this process, the engaging projection 48 of the engaging portion 46 climbs over the engaged portion 49 of the movable portion 14 from below to release the engagement between the movable portion 14 and the engaging portion 46.
When the movable part 14 moves up as described above, the guide cylinder part 30 of the movable part 14 and the inner cylinder part 18 of the interior part 10 are in sliding contact with each other, and the inner cylinder part 18 guides the upward movement of the movable part 14. As a result, the movable portion 14 stably moves upward.

  After detaching the overcap 6 in this manner, the double container 4 is pushed inward in the radial direction to press the double container 4 to increase the internal pressure of the inner container 2. Then, after the contents in the inner container 2 circulates through the connection path 70, the film 12 is pressed by the contents flowing out from the communication opening 71 and flowing out from the communication opening 71, and the non-adhered portion 26b of the film 12 is It swells away from the upper surface of the extraction wall portion 13 and bulges into a dome shape that protrudes upward (see the broken line shown in FIG. 3). As a result, the flow path 50 communicating with the communication opening 71 is formed between the film 12 and the upper surface of the pouring wall portion 13, and the pouring opened to the outside at the opening portion 26 a of the fixing portion 26. An outlet 27 is formed. As a result, the content flowing out from the communication opening 71 is poured out from the spout 27 through the flow path 50. The contents flowing through the spout 27 flow along the upper surface of the lip portion 25 disposed in front of the spout 27 and are poured out from the front end of the lip portion 25. At this time, since the upper surface of the lip portion 25 is inclined with respect to the upper surface of the pouring wall portion 13, the liquid of the contents is good.

  Thereafter, the pressing of the double container 4 is stopped or released, and the outflow of contents from the communication opening 71 is stopped. Then, the pressing force by the contents applied to the film 12 is released, and the film 12 separated from the upper surface of the pouring wall portion 13 is restored to the original state and is brought into close contact with the upper surface of the pouring wall portion 13. As a result, the spout 27 is closed and the communication opening 71 is sealed by the film 12, and the sealing of the inner container 2 is ensured again.

  Here, when the pressing of the double container 4 is released in a state in which the sealing performance of the inner container 2 is ensured, the outer container 3 tends to be restored and deformed while the inner container 2 is deformed and deformed. At this time, as shown in FIG. 4, a negative pressure is generated between the inner container 2 and the outer container 3, and this negative pressure acts on the valve body 39 of the check valve 38 through the intake hole 61. The inner peripheral edge 39a of the valve body 39 is separated from the lower end edge 42 of the surrounding cylinder portion 28, and the outside and the intake hole 61 are communicated with each other through the outside air inflow path 60 (see the broken line shown in FIG. 4). Then, outside air flows into the outside air inflow path 60 from the outside, and this outside air is sucked between the inner container 2 and the outer container 3 through the intake hole 61. Therefore, after the contents are poured out from the dispensing container 1, an intermediate space 51 is formed between the inner container 2 and the outer container 3.

After the use of the dispensing container 1 is finished, the overcap 6 is rotated around the hinge portion 7 to attach the overcap 6 to the dispensing body 5. Then, in accordance with this mounting operation, the engaging portion 46 moves downward while the engaging protrusion 48 of the engaging portion 46 contacts the engaged portion 49 of the movable portion 14 from above, so that the elastic connecting portion 36 is moved. The movable portion 14 moves downward while being restored and deformed. Thereby, the valve seat cylinder part 31 of the movable part 14 approaches the lower side toward the extraction valve body 15, and the extraction valve body 15 is fitted into the valve seat cylinder part 31. 15, the communication between the inside of the inner container 2 and the communication opening 71 is blocked. In this process, the engaging protrusion 48 of the engaging portion 46 climbs over the engaged portion 49 of the movable portion 14 from above, and the engaging protrusion 48 is positioned below the engaged portion 49. Become.
When the movable part 14 moves downward, the inner cylinder part 18 of the interior part 10 and the guide cylinder part 30 of the movable part 14 are in sliding contact with each other, and the inner cylinder part 18 guides the downward movement of the movable part 14. As a result, the movable portion 14 stably moves downward.

  Here, in a state where the intermediate space 51 is formed between the inner container 2 and the outer container 3, the outer container 3 is slightly pushed inward in the radial direction, for example, by gripping the double container 4 or the like. In this case, although the internal pressure of the intermediate space 51 tends to rise, the internal pressure is released to the outside through the pressure relief passage 43. Thereby, it becomes possible to suppress that the internal pressure of the inner container 2 raises, and it can suppress that the content of the inner container 2 flows out from the communication opening 71. FIG.

  On the other hand, when the double container 4 is pressed to pour the contents from the pouring container 1 and the outer container 3 is pushed inwardly in the radial direction, the pressure that can be released through the pressure relief passage 43 As described above, the internal pressure of the intermediate space 51 increases, and this internal pressure acts on the inner container 2, so that the internal pressure of the inner container 2 increases. Thereby, the content of the inner container 2 flows out from the communication opening 71, and the content can be poured out from the spout 27.

As described above, according to the dispensing container 1 according to the present embodiment, when the outer container 3 is pushed slightly inward in the radial direction, for example, by gripping the dispensing container 1, the inner container 2. It is possible to suppress an increase in the internal pressure, and it is possible to prevent the contents from being unexpectedly poured out.
Further, since the communication opening 71 is sealed by the film 12, the hermeticity of the inner container 2 is ensured. Therefore, the contents are unexpectedly discharged when the dispensing container 1 is distributed or stored. Can be suppressed from being poured out from
Furthermore, since the communication between the inside of the inner container 2 and the communication opening 71 is blocked by the pouring valve body 15, the hermeticity of the inner container 2 is further secured. It is possible to further prevent the contents from being unexpectedly poured out from the spout 27 during storage.

Furthermore, since the spout 27 can be opened and closed with a simple configuration in which the film 12 is fixed to the upper surface of the spout wall 13 of the spout 5, the manufacture of the spout container 1 is facilitated. Can do.
Further, the contents are discharged from the communication opening 71 and the film 12 is pressed by the contents, whereby the spout 27 is opened and the contents are poured out, and the outflow of the contents from the communication opening 71 is stopped. By doing so, the spout 27 is closed and the communication opening 71 is sealed, so that the operation of pouring the contents can be easily performed. That is, it is only necessary to perform the operation of causing the contents to flow out of the communication opening 71, and it is not necessary to separately perform the operation of opening and closing the spout 27, and the operability can be improved.
In addition, since the communication between the inside of the inner container 2 and the communication opening 71 by the pouring valve body 15 and the blocking thereof can be switched in accordance with the attaching / detaching operation of the overcap 6, the leakage of the contents can be suppressed. The operability of the ejection operation can be improved.

Moreover, since the adhering portion 26 is opened at the front end portion of the pouring wall portion 13 and the spout 27 is formed at the front end, the position of the spout 27 is away from the mouth 4a of the double container 4. Formed. Thereby, it becomes easy to pour out the contents and the operability can be improved.
Furthermore, since the upper surface of the pouring wall portion 13 is formed in a concave curved surface shape, when the film 12 is pressed by the content flowing out from the communication opening 71, the non-fixed portion 26b of the film 12 becomes the pouring wall portion. Inverted and deformed in a direction away from the upper surface of 13. For this reason, the flow path 50 formed between the film 12 and the upper surface of the extraction wall part 13 can be ensured largely.
Further, since the contents flowing through the spout 27 flow along the inclined upper surface of the lip portion 25 and are poured out, the contents can be drained well, and the dripping of the contents after pouring can be suppressed. it can.

(Second Embodiment)
Next, a dispensing container according to the second embodiment of the present invention will be described.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different points will be described.

  As shown in FIGS. 5 and 6, in the pouring container 80 of the present embodiment, the movable portion 14 is configured by the pouring member 20, and the pouring member 20 includes the pouring wall portion 13, The communication cylinder part 22, the flange part 23, the valve seat cylinder part 31, the guide cylinder part 30, the surrounding cylinder part 28, and the mounting cylinder part 33 are provided.

  The valve seat tube portion 31 extends downward from the peripheral edge of the communication opening 71 in the extraction wall portion 13. The guide tube portion 30 extends downward from the lower end edge of the communication tube portion 22. The surrounding cylinder portion 28 extends downward from the flange portion 23. The mounting cylinder portion 33 extends downward from the outer peripheral edge portion of the flange portion 23.

An inner peripheral edge of the elastic connecting portion 36 is connected to an upper end edge of the flange portion 23.
A through hole 69 that opens toward the internal space 66 is formed in a portion of the flange portion 23 that is located between the surrounding tube portion 28 and the mounting tube portion 33.
Accordingly, in the present embodiment, the outside air inflow passage 60 is configured by the through hole 69, the internal space 66, the opening 63, and the gap space 62. In addition, the connection path 70 includes an inner side of the seal cylinder part 16 of the interior part 10, an inner side of the inner connecting ring part 17 a, an inner side of the inner cylinder part 18, an inner side of the guide cylinder part 30 of the movable part 14, and the valve seat cylinder part 31. It is constituted by the inside.

  As described above, according to the dispensing container 80 according to the present embodiment, the same effects as the dispensing container 1 of the first embodiment can be achieved.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in each of the above embodiments, when the contents are poured out from the dispensing containers 1 and 80, the double container 4 is pressed to cause the contents to flow out from the communication opening 71. However, the present invention is not limited to this. It is also possible to tilt the pouring containers 1 and 80 forward and to make the pouring posture with the pouring outlet 27 facing downward, and to let the contents flow out of the communication opening 71 by the weight of the contents. In this case, in order to stop the outflow of the contents from the communication opening 71, the dispensing containers 1 and 80 may be returned to the original upright posture.
Further, the contents may be poured out by pressing the double container 4 while the pouring containers 1 and 80 are in the pouring posture.

  In each said embodiment, although the overcap 6 shall be connected with the extraction body 5 via the hinge part 7, it is not restricted to this, Undercut fitting so that attachment or detachment to the extraction body 5 is possible A combined configuration can also be employed. Further, the overcap 6 may be omitted.

  Further, in each of the embodiments, the pressure relief path 43 is formed with the pressure relief path 43 at the lower end edge 42 of the surrounding cylinder portion 28, but is not limited thereto. For example, the pressure relief passage 43 may be formed in the inner peripheral edge 39 a of the valve main body 39, or may be formed in both the lower end edge 42 of the surrounding cylinder portion 28 and the inner peripheral edge 39 a of the valve main body 39. .

  Further, the check valve 38 is not limited to the structure shown in each of the above embodiments, and allows the outside air to flow between the inner container 2 and the outer container 3 from the outside, and between the inner container 2 and the outer container 3. Any structure that prevents the outside air from flowing out from the outside may be used. For example, in each of the above embodiments, the valve member 40 is disposed in the internal space 66 and the check valve 38 is provided in the internal space 66. A valve 38 may be provided. In this case, the check valve member provided with the valve body and valve seat of the check valve may be configured to be attached to the mouth portion 4a of the double container 4 or the exterior portion 11 of the extraction body 5. The structure by which the valve body and the valve seat were integrally formed in the opening | mouth part 4a and the exterior part 11 of the double container 4 may be sufficient.

  Further, in each of the above embodiments, the rear end portion of the lip portion 25 has the same width as the front end portion of the pouring wall portion 13, and the lip portion 25 is bent downward toward the front end. However, it is not limited to this. Further, the lip portion 25 may be omitted.

Moreover, in each said embodiment, although the opening part 26a of the adhering part 26 is only one place, as for this invention, the adhering part 26 may be opened in several places. For example, the fixing portion 26 may be opened rearward, and the opening portion may be used as an air opening for air replacement. This air opening can be opened and closed simultaneously with the spout 27 as the film 12 bulges and deforms.
Further, two or more opening portions 26 a of the fixing portion 26 may be formed to have two or more spouts 27.

  Moreover, in the said each embodiment, although the upper surface of the extraction | pouring wall part 13 is formed in the concave curved surface shape, it is also possible to make the upper surface of the extraction | pouring wall part 13 into a flat surface or a convex curve shape. In this case, it is preferable that the film 12 has a stretchable structure.

  Moreover, in each said embodiment, the 2nd protrusion 11a formed in the exterior part 11 of the extraction body 5 carries out undercut fitting to the 1st protrusion 8a formed in the opening | mouth part 4a of the double container 4. FIG. Although the extraction | pouring body 5 shall be mounted | worn with the opening part 4a, it is not restricted to this. For example, a male screw part is formed in the mouth part 4a of the double container 4, and a female screw part is formed in the exterior part 11 of the pouring body 5, and the pouring body 5 is screwed to the mouth part 4a of the double container 4. May be.

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

DESCRIPTION OF SYMBOLS 1, 80 Outlet container 2 Inner container 3 Outer container 4 Double container 4a Mouth part 5 Outlet body 6 Overcap 12 Film 13 Outlet wall part 14 Movable part 15 Outlet valve body 26 Adhering part 26a Opening part 26b Non-adhering Part (inner part of fixed part)
38 Check Valve 40 Valve Member (Valve)
42 Bottom edge (valve seat)
43 Pressure Relief Path 46 Engagement Section 60 Outside Air Inflow Path 61 Intake Hole 71 Communication Opening

Claims (2)

A double container having a flexible inner container in which contents are accommodated and an elastically deformable outer container in which an intake hole for sucking outside air is formed between the inner container and the inner container;
A pouring body attached to the mouth of the double container and having a communication opening communicating with the inside of the inner container and capable of pouring the contents through the communication opening;
The pouring body includes a pouring wall portion in which the communication opening is formed and a film covering the communication opening is disposed on an upper surface.
The film is fixed to the upper surface of the extraction wall portion through a fixing portion that surrounds the communication opening and at least a part of the circumferential direction is open,
The communication opening is sealed by being in close contact with the upper surface of the pouring wall portion so that the inner portion of the fixing portion of the film can be separated,
In the outside air inflow passage that communicates the outside and the intake hole, the outside air is allowed to flow from the outside between the inner container and the outer container, and between the inner container and the outer container. A check valve is provided to prevent the outside air from flowing into the
A dispensing container, wherein a pressure relief passage is formed between a valve body and a valve seat of the check valve. A dispensing container according to claim 1,
The extrudate is
A movable part having the pouring wall part and movable up and down;
An extraction valve body that switches communication between the communication opening and the inside of the inner container and shuts off thereof in accordance with the vertical movement of the movable part, and
An overcap covering the movable part is detachably attached to the extraction body,
The dispensing container, wherein the overcap is provided with an engaging portion that engages with the movable portion and moves the movable portion up and down as the overcap is attached and detached.

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