JP2014069853A - Discharge container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a discharge container capable of preventing deformation of a discharge valve and an air valve due to heat produced when the container body is filled with high-temperature contents.SOLUTION: In a discharge cap 24, there are provided an air valve 12 switching between communication and blockage between a suction hole 7c and an outside air introduction hole 5d and a discharge valve 41 opening and closing a communication hole 9f. In the inside of the container body 4 relative to the discharge valve 41, an opening/closing valve 50 switching between communication and blockage between the inside of an inner container 2 and the communication hole 9f is arranged.

Description

  The present invention relates to a discharge container.

Conventionally, as this type of discharge container, for example, as shown in Patent Document 1 below, a container main body in which a flexible inner container is housed inside an outer container having a squeeze-deformable and recoverable body portion; A configuration is known that includes a discharge cap that is attached to a mouth portion of a container body and is formed with a discharge port that discharges the contents contained inside the inner container.
The outer container is formed with an intake hole through which the outside air is sucked between the inner container, and the discharge cap has an outside air introduction hole that communicates the outside and the intake hole, and communication between the intake hole and the outside air introduction hole. There are provided an air valve for switching the shutoff, a closing plate in which a communication hole that closes the mouth and communicates the discharge port and the inside of the inner container is formed, and a discharge valve that opens and closes the communication hole.

  In this discharge container, in order to discharge the contents stored in the inner container of the container main body, for example, the outer container of the container main body is squeezed (elastically deformed). Thereby, the inner container is deformed together with the outer container to reduce the volume. The discharge port communicates with the inside of the inner container, and the contents contained in the inner container are discharged from the discharge port.

Thereafter, the discharge port and the inside of the inner container are shut off by the discharge valve to seal the inner container, and when the above-described squeeze deformation is released, the outer container tends to be restored and deformed. At this time, the negative pressure generated between the outer container and the inner container acts on the air valve through the intake hole, whereby the air valve is activated to connect the intake hole and the outside air introduction hole. Thereby, outside air flows into the inside of the discharge cap from the outside air introduction hole, and is then sucked between the outer container and the inner container through the intake hole.
When the internal pressure between the outer container and the inner container rises to the atmospheric pressure due to the intake of the outside air, the air valve is restored and deformed to block between the intake hole and the outside air introduction hole. Thus, the volume reduction shape of the inner container is maintained by sucking the outside air between the outer container and the inner container.

From this state, when the outer container of the container body is squeezed again, the air valve is shut off, so the internal pressure between the outer container and the inner container becomes positive, and this positive pressure reduces the inner container. To be deformed. By reducing the volume of the inner container, the same action as described above is obtained, and the contents are discharged.
As described above, even when the squeezed deformed outer container is restored and deformed, the inner container is reduced in volume as the contents are reduced, and the outside air is prevented from flowing into the inner container. Thereby, deterioration of the content is prevented and the preservability is improved.

JP 2011-230843 A

  However, in the conventional discharge container mentioned above, there exists a possibility that a discharge valve and an air valve may deform | transform with the heat | fever when a high temperature content is filled in the container main body. When the discharge valve is deformed, for example, the discharge port and the inside of the inner container may communicate unexpectedly. Further, when the air valve is deformed, for example, there is a possibility that the intake hole and the outside air introduction hole communicate unexpectedly. Thereby, there exists a possibility that the function of a discharge valve and an air valve may be impaired.

  This invention is made | formed in view of such a situation, Comprising: The discharge container which can suppress that a discharge valve and an air valve deform | transform with the heat | fever when a high temperature content is filled in the container main body is provided. For the purpose.

  In order to solve the above-mentioned problems and achieve such an object, the discharge container of the present invention comprises a flexible inner container that accommodates the contents and deforms with deformation as the contents decrease, and A container main body including an outer container in which the inner container is installed; and a discharge cap that is attached to a mouth portion of the container main body and formed with a discharge port for discharging the contents. An intake hole through which the outside air is sucked is formed between the inner container, the discharge cap, an outside air introduction hole communicating the outside and the intake hole, and the discharge port and the inside of the inner container. A communication hole is formed, and an air valve that switches communication and blocking between the intake hole and the outside air introduction hole, and a discharge valve that opens and closes the communication hole are provided. Inside the container body, the inside of the inner container Communicating with the communication hole, and the on-off valve for switching the blocking is characterized in that it is arranged.

According to the discharge container according to the present invention, since the opening / closing valve for switching between communication between the inside of the inner container and the communication hole and the shutoff is disposed inside the container body from the discharge valve, It is possible to suppress the heat of the contents from being transmitted to the discharge valve and the air valve of the discharge cap. Thereby, it can suppress that a discharge valve and an air valve deform | transform with the heat | fever of the high temperature contents with which the container main body was filled.
Further, the opening / closing valve closes the opening on the mouth side of the inner container, so that, for example, when the discharge container is sterilized by overturning with the high-temperature contents filled in the container body, the contents are Direct contact with the discharge valve can be prevented. Thereby, also when performing such a sterilization process, it can suppress that the heat | fever of the content is transmitted to a discharge valve.

  The on-off valve has a slit formed in an elastically deformable closing body that closes the opening on the mouth side of the inner container, and the closing body elastically deforms as the internal pressure of the inner container increases. By doing so, the slit may be widened so that the inside of the inner container and the communication hole communicate with each other.

  In this case, since the on-off valve has a simple configuration in which a slit is formed in an elastically deformable closing body, a discharge container that exhibits the above-described effects can be formed at low cost.

  According to this invention, it can suppress that a discharge valve and an air valve deform | transform with the heat | fever when a high temperature content is filled in the container main body.

It is a longitudinal cross-sectional view of the discharge container of one Embodiment which concerns on this invention.

(Discharge container)
Hereinafter, an embodiment of a discharge container according to the present invention will be described with reference to FIG.
As shown in FIG. 1, the discharge container 1 of the present embodiment includes a flexible inner container 2 that accommodates contents and squeezes and deforms as the contents decrease, and an inner container 2. In addition, a container main body 4 having an outer container 3 that can be elastically deformed, a discharge cap 24 that is attached to the mouth portion 4a of the container main body 4 and has a discharge port 13 for discharging contents, and a removable cap 24 are detachable. And an overcap 6 disposed.

  Here, the container main body 4 is formed in a bottomed cylindrical shape, the overcap 6 is formed in a topped cylindrical shape, and the container main body 4 and the overcap 6 are arranged coaxially with the common axis in the covered state of the overcap 6. Has been. Hereinafter, this common axis is referred to as the container axis O, the overcap 6 side along the container axis O direction is referred to as the upper side, the bottom side of the container body 4 is referred to as the lower side, and the direction orthogonal to the container axis O is referred to as the radial direction. The direction that goes around the container axis O is called the circumferential direction.

  In the illustrated example, the container body 4 is a so-called Delami bottle in which the inner container 2 is detachably laminated on the inner surface of the outer container 3. The mouth part 4a of the container body 4 is formed in a two-stage cylinder shape including an upper cylinder part 7 positioned on the upper side and a lower cylinder part 8 positioned on the lower side and formed with a larger diameter than the upper cylinder part 7. Has been.

  A male screw portion 7b is formed on the outer peripheral surface of a portion (hereinafter referred to as an outer upper tube portion) 7a formed of the outer container 3 in the upper tube portion 7. Further, in the outer upper cylinder portion 7a, an intake hole 7c through which outside air is sucked into the inner container 2 is formed in a portion located below the male screw portion 7b. A groove 7e extending along the container axis O direction is formed in a portion of the male screw portion 7b located above the intake hole 7c.

The inner peripheral surface of the outer upper cylindrical portion 7a is a cylindrical surface, and a portion (hereinafter referred to as an inner upper cylindrical portion) 7d formed of the inner container 2 in the upper cylindrical portion 7 is laminated on the inner peripheral surface. Yes. Further, the upper end portion of the inner upper cylindrical portion 7d is folded back to the outer side in the radial direction and disposed on the upper end opening edge of the outer upper cylindrical portion 7a.
The container body 4 is formed, for example, by blow molding a co-extruded two-layer parison, the outer container 3 is made of, for example, polyethylene resin, and the inner container 2 is compatible with the polyethylene resin. For example, it is made of a polyamide-based synthetic resin.

The discharge cap 24 is attached to the mouth portion 4a and has the discharge cap body 5 formed therein. The discharge cap 24 is disposed in the discharge cap body 5 to close the mouth portion 4a. A closing plate 9 formed with a communication hole 9 f for communicating with the inside of the inner container 2 and a valve cylinder 17 disposed between the discharge cap body 5 and the closing plate 9 are provided.
The discharge cap main body 5 is formed in a top tube shape including a top wall portion 5a and a peripheral wall portion 5b. On the inner peripheral surface of the peripheral wall portion 5b of the discharge cap main body 5, a female screw portion 5c that is screwed to the male screw portion 7b of the mouth portion 4a of the container main body 4 is formed. Moreover, the lower cylinder part 8 of the opening part 4a is fitted in the airtight state in the lower end part of the surrounding wall part 5b. This prevents the intake hole 7 c from communicating with the outside of the discharge container 1 from the lower side of the peripheral wall portion 5 b of the discharge cap body 5.

The top wall 5a of the discharge cap body 5 includes an annular lower plate 31 extending radially inward from the upper end of the peripheral wall 5b, an upper plate 33 disposed above the lower plate 31, and a lower It is formed in the two-stage cylinder shape provided with the connection cylinder 32 which connects the inner periphery of the board part 31, and the outer periphery of the upper board part 33.
A discharge cylinder 11 is provided through the upper plate portion 33. An upper end opening of the discharge cylinder 11 is a discharge port 13. The upper plate portion 33 is formed with an annular air valve receiving cylinder 18 extending downward.

  The connection cylinder 32 is formed with an outside air introduction hole 5d that penetrates in the radial direction and allows the inside of the discharge cap body 5 to communicate with the outside. The outside air introduction hole 5d is formed over a predetermined angular range along the circumferential direction. A portion of the upper plate portion 33 that corresponds to the outside air introduction hole 5d in the circumferential direction constitutes an eaves wall 46 that covers the outside air introduction hole 5d from above. Accordingly, the outside air introduction hole 5d is open only on the side (radial direction) because the upper part is covered with the eaves wall 46.

  The closing plate 9 includes a bottom wall portion 9a that closes the mouth portion 4a, a top wall portion 9b that is disposed above the bottom wall portion 9a, and a cylindrical shape that connects the bottom wall portion 9a and the top wall portion 9b. The connecting cylinder 9c, the outer cylinder 9d extending upward from the outer peripheral edge of the bottom wall 9a, the inner cylinder 9e formed shorter than the outer cylinder 9d inside the outer cylinder 9d, and the outer of the bottom wall 9a A fitting cylinder 91 extending downward from between the cylinder 9d and the inner cylinder 9e.

The bottom wall portion 9a has an outer peripheral edge that is in contact with the upper end opening edge of the mouth portion 4a from above, and is formed in an annular shape.
The upper wall portion 9b is formed with a bulging portion 9h that bulges upward toward the entire portion except the outer peripheral portion thereof. A communication hole 9f penetrating along the container axis O direction is formed at the center of the upper wall portion 9b and the bulging portion 9h. The communication hole 9f opens toward the inside of the container body 4 so that the inside of the container body 4 and the discharge port 13 can communicate with each other.
The outer cylinder 9d is fitted in the peripheral wall portion 5b of the discharge cap body 5. Specifically, the upper end of the outer cylinder 9 d is in contact with the lower plate portion 31 of the top wall portion 5 a in the discharge cap body 5. In addition, at the lower end portion of the outer cylinder 9d (a boundary portion between the outer cylinder 9d and the bottom wall portion 9a), at least one outside air circulation hole 9g that penetrates in the radial direction and opens downward is formed. Yes. In the present embodiment, a plurality of outside air circulation holes 9g are formed at intervals in the circumferential direction.
The inner cylinder 9e is erected so as to surround the connecting cylinder 9c from the outside in the radial direction.
The fitting cylinder 91 is provided along the inner peripheral surface of the inner upper cylinder part 7d inside the upper end opening of the mouth part 4a. A concave portion 91a that is recessed outward in the radial direction is formed on the entire circumference of the inner peripheral surface of the fitting cylinder 91 in the container axis O direction.

  The valve cylinder 17 includes a communication cylinder 35 extending along the container axis O direction. The communication cylinder 35 is fitted between the connecting cylinder 9c and the inner cylinder 9e of the closing plate 9 at the lower end, and is in contact with the bottom wall portion 9a of the closing plate 9 from above. On the other hand, the upper end portion of the communication tube 35 is fitted into the above-described air valve receiving tube 18 and is in contact with the upper plate portion 33 from below. That is, the inside of the communication cylinder 35 constitutes a communication path 36 that allows communication between the discharge port 13 and the communication hole 9f.

An annular air valve 12 that protrudes outward in the radial direction and extends along the circumferential direction is formed at an intermediate portion of the communication cylinder 35 in the container axis O direction. The air valve 12 has a curved shape that protrudes downward in a longitudinal sectional view, and is disposed so as to cover the space between the air valve receiving cylinder 18 and the connecting cylinder 32 from below. The air valve 12 can be elastically deformed, and is configured to switch communication between the intake hole 7c and the outside air introduction hole 5d.
In addition, an annular protrusion 12 a that protrudes upward and extends in the circumferential direction is formed on the outer edge of the air valve 12. The projecting portion 12 a is in contact with the lower plate portion 31 from below, and can be separated downward by elastic deformation of the air valve 12.

A discharge valve 41 that can open and close the communication hole 9 f is formed inside the communication cylinder 35. The discharge valve 41 includes a plate body 42 that covers the communication hole 9f, and a connecting portion 44 that connects the plate body 42 and the communication tube 35.
The plate body 42 is formed in a disk shape having an outer diameter larger than that of the communication hole 9f, and its lower surface is in contact with the bulging portion 9h of the above-described upper wall portion 9b from above.

  The connecting portion 44 extends from the outer peripheral edge portion of the plate body 42 toward the outer side in the radial direction, and connects the outer edge portion of the plate body 42 and the inner peripheral surface of the communication tube 35. The connecting portion 44 is configured to be elastically deformable according to the internal pressure fluctuation of the inner container 2 or the pressure due to the discharged contents, and the plate body 42 is configured to be movable upward by the elastic deformation of the connecting portion 44. . The communication passage 36 (communication hole 9 f) is opened by the movement of the plate body 42, and the contents flow through the communication passage 36.

In the present embodiment, an opening / closing valve 50 that switches between communication between the inside of the inner container 2 and the communication hole 9f and shut-off is disposed inside the container body 4 relative to the discharge valve 41.
The on-off valve 50 is an elastically deformable closing body 51 that closes the opening on the mouth 4a side of the inner container 2, a cylindrical fitting portion 55 that extends downward from the outer peripheral edge of the closing body 51, and It has. The on-off valve 50 is formed of an elastically deformable material having excellent heat resistance such as silicone rubber.
The closing body 51 is formed in a curved surface shape that bulges downward. A slit 52 is formed in the central portion of the closing body 51. The slit 52 has, for example, an X shape when viewed from the top of the closing body 51. Except when discharging the contents, the slit 52 is closed, and the inside of the inner container 2 is sealed. On the other hand, when the contents are discharged, the slit 52 is expanded by the elastic deformation of the closing body 51 as the internal pressure of the inner container 2 increases, and the inside of the inner container 2 and the discharge port 13 is configured to communicate with each other.

The upper end portion of the fitting portion 55 is in contact with the bottom wall portion 9a of the closing plate 9 from below.
Further, the lower end portion of the fitting portion 55 is a flange portion 56 that projects outward in the radial direction over the entire circumference. The flange portion 56 is in contact with the lower end opening edge portion of the fitting cylinder 91 of the closing plate 9.
A convex portion 57 protruding outward in the radial direction over the entire circumference is formed at the intermediate portion of the fitting portion 55 in the container axis O direction. The convex portion 57 is fitted in a concave portion 91 a formed in the fitting cylinder 91 of the closing plate 9. Accordingly, the on-off valve 50 is disposed below the bottom wall portion 9 a of the closing plate 9 and inside the fitting tube 91 in the radial direction.

The overcap 6 is formed in a top cylinder shape having a top wall portion 6a and a peripheral wall portion 6b. The overcap 6 is a part in the circumferential direction at the opening edge of the peripheral wall portion 6 b and is connected to the peripheral wall portion 5 b of the discharge cap body 5 via a hinge 45.
As a result, the overcap 6 can rotate around the hinge 45 to open and close the discharge port 13. In addition, a plug cylinder 6 c is projected from the top wall 6 a, and when the plug cylinder 6 c is fitted into the discharge cylinder 11, the discharge port 13 is closed.

According to the discharge container 1 by this embodiment demonstrated above, there exist the following effects.
When the inner container 2 of the container body 4 is filled with high-temperature contents, the heat of the contents filled in the container body 4 is transmitted to the container body 4 and released upward from the mouth 4a of the container body 4 Then, it tries to transmit to the discharge cap 24 attached to the mouth portion 4 a of the container body 4. Here, in the discharge container 1 of the embodiment, the opening / closing valve 50 is disposed inside the container main body 4 relative to the discharge valve 41, so that the contents inside the container main body 4 are provided above the opening / closing valve 50. Heat transfer to the discharged discharge valve 41 and the air valve 12 is suppressed.

  Besides, when the contents are not discharged, the slit 52 is closed, and the inner container 2 is sealed by the on-off valve 50. Therefore, for example, when the discharge container 1 is overturned and sterilized by heating after the discharge container 1 is overturned after filling the inner container 2 with high-temperature contents, the high-temperature contents are stored in the on-off valve 50. There is no direct contact with the discharge valve 41 and the air valve 12 provided above. Therefore, even when the discharge container 1 is sterilized by overturning, heat transfer from the contents inside the container body 4 to the discharge valve 41 and the air valve 12 is suppressed.

  Further, when the contents stored in the inner container 2 of the container body 4 are discharged, in the discharge container 1 of the embodiment, the overcap 6 is opened and the discharge port 13 is in a discharge posture so as to face downward. For example, the outer container 3 of the container body 4 is squeezed (elastically deformed). Thereby, the inner container 2 is deformed together with the outer container 3 to reduce the volume. Then, the internal pressure of the inner container 2 rises along with this volume reduction deformation, and along with the rise of this internal pressure, the closure body 51 is elastically deformed, so that the slit 52 is expanded and the connecting portion 44 is elastically deformed. The body 42 is separated upward from the bulging portion 9h in the upper wall portion 9b of the closing plate 9, and the communication passage 36 is opened. As a result, the inside of the inner container 2 communicates with the discharge port 13, and the contents stored in the inner container 2 are discharged from the discharge port 13 through the communication path 36.

Thereafter, when the internal pressure of the inner container 2 decreases, the connecting portion 44 is restored and deformed by the elastic restoring force, the communication hole 9f is closed by the plate body 42, and the closing body 51 is restored and deformed by the elastic restoring force, so that the slit 52 is formed. The communication path 36 is closed and the inner container 2 is sealed. Further, when the above-described squeeze deformation is released, the outer container 3 tries to be restored and deformed. At this time, the negative pressure generated between the outer container 3 and the inner container 2 acts on the air valve 12 through the intake hole 7c, so that the air valve 12 opens toward the intake hole 7c and the intake hole 7c and The outside communicates, and outside air is sucked between the outer container 3 and the inner container 2 from the intake hole 7c through the outside air introduction hole 5d, the outside air circulation hole 9g, and the groove 7e.
When the internal pressure between the outer container 3 and the inner container 2 rises to the atmospheric pressure due to the intake of the outside air, the air valve 12 is restored and deformed to shut off the intake hole 7c and the outside. Thus, the volume reduction shape of the inner container 2 is maintained by sucking the outside air between the outer container 3 and the inner container 2.

From this state, when the outer container 3 of the container body 4 is squeezed again, the air valve 12 is shut off, so that the internal pressure between the outer container 3 and the inner container 2 rises, and this internal pressure rises. As a result, the volume of the inner container 2 is reduced. By reducing the volume of the inner container 2, the same action as described above is obtained, and the contents are discharged. As described above, even when the squeezed deformed outer container 3 is restored and deformed, the inner container 2 is reduced in volume as the contents are reduced, and the outside air is prevented from flowing into the inner container 2. . Thereby, deterioration of the content is prevented and the preservability is improved.
After discharging, the overcap 6 is closed and attached to the discharge cap 24.

As described above, according to the discharge container 1 of the present embodiment, the opening / closing valve 50 that switches between the communication between the inside of the inner container 2 and the communication hole 9f and the shutoff is disposed inside the container body 4 rather than the discharge valve 41. Therefore, the heat of the contents inside the inner container 2 can be prevented from being transmitted to the discharge valve 41 and the air valve 12 of the discharge cap 24. Thereby, it can suppress that the discharge valve 41 and the air valve 12 deform | transform with the heat | fever of the high temperature contents with which the container main body 4 was filled.
In addition, since the on-off valve 50 closes the opening on the mouth 4a side of the inner container 2, for example, when the discharge container 1 is sterilized by overturning with the high-temperature contents filled in the container body 4. In addition, the contents can be prevented from coming into direct contact with the discharge valve 41. Thereby, also when performing such a sterilization process, it can suppress that the heat | fever of the content is transmitted to the discharge valve 41. FIG.
Moreover, since the on-off valve 50 has a simple configuration in which the slit 52 is formed in the elastically deformable closing body 51, the discharge container 1 that exhibits the above-described effects can be formed at low cost.

  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 the above-described embodiment, the opening / closing valve 50 is opened / closed by the slit 52 formed in the closing body 51, but the opening / closing mechanism of the opening / closing valve 50 is not limited to the slit 52. Moreover, although the slit 52 of this embodiment made X shape by the top view of the obstruction body 51, the shape of the slit 52 is not limited to X shape. For example, the slit 52 may be formed in an I shape in a top view of the closing body 51.

  Further, in the discharge valve 41 of the present embodiment, the plate body 42 is in contact with the bulging portion 9 h in the upper wall portion 9 b of the closing plate 9 to close the communication hole 9 f. On the other hand, for example, a cylindrical valve body protruding downward is provided on the plate body 42, and this valve body is inserted into the communication hole 9f of the closing plate 9, so that the outer peripheral surface of the valve body and the inside of the communication hole 9f The communication hole 9f may be closed by contacting the peripheral surface over the entire circumference.

  Moreover, although the container main body 4 in the present embodiment is a so-called Delami bottle in which the inner container 2 is detachably laminated on the inner surface of the outer container 3, it is not limited to this. A double container formed separately from the outer container 3 may be used.

  Moreover, although the female screw part 5c of the discharge cap main body 5 of the discharge cap 24 is screwed to the male screw part 7b of the mouth part 4a of the container main body 4, it is not limited to this. That is, instead of using the female screw portion 5c and the male screw portion 7b, for example, by forming fitting protrusions on the mouth portion 4a of the container body 4 and the discharge cap body 5 and fitting them undercut, 24 may be attached to the mouth 4a.

  Further, the above-described overcap 6 is a hinge-type cap that rotates about the hinge 45 and is detachably disposed on the discharge cap 24. However, the present invention is not limited to this. For example, the overcap 6 May be a screw-type cap that is detachably attached to the discharge cap 24 by screwing, or a stopper-type cap that is detachably provided to the discharge cap 24 by a pushing operation.

  In the above-described embodiment, the discharge cap body 5 is integrally formed by a single member, but is divided into a main body portion having the discharge port 13 and a mounting portion attached to the mouth portion 4a. It doesn't matter.

  In addition, it is possible to appropriately replace the components in the above-described embodiments with known components without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Discharge container 2 Inner container 3 Outer container 4 Container main body 4a Opening part 5d Outside air introduction hole 7c Intake hole 9f Communication hole 12 Air valve 13 Discharge port 24 Discharge cap 41 Discharge valve 50 On-off valve 51 Closure body 52 Slit

Claims (2)

A container main body including a flexible inner container that accommodates contents and squeezes and deforms as the contents decrease, and an outer container in which the inner container is installed;
A discharge cap mounted on the mouth portion of the container body and formed with a discharge port for discharging the contents;
The outer container is formed with an intake hole through which the outside air is sucked between the inner container,
The discharge cap includes
An outside air introduction hole that communicates the outside and the intake hole, and a communication hole that communicates the discharge port and the inside of the inner container are formed,
An air valve for switching communication and blocking between the intake hole and the outside air introduction hole;
A discharge valve for opening and closing the communication hole;
Is provided,
A discharge container, wherein an opening / closing valve for switching between communication between the inside of the inner container and the communication hole and blocking is disposed inside the container main body with respect to the discharge valve. The discharge container according to claim 1,
The on-off valve has a slit formed in an elastically deformable closing body that closes the opening on the mouth side of the inner container,
As the internal pressure of the inner container increases, the closure body elastically deforms, so that the slit is expanded, and the inside of the inner container and the communication hole communicate with each other. Discharge container.

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