JP6581872B2 - Double container for solid contents - Google Patents

Description

  The present invention relates to a double container.

Conventionally, as a container for solid contents such as powder, granules and tablets, a container main body for storing the contents, a discharge cap attached to the mouth of the container main body and formed with discharge holes for the contents, (See, for example, Patent Document 1).
The discharge cap has a top plate in which a discharge hole is formed, and an upright cylinder attached to the mouth portion so as to close the mouth portion of the container body, and an operation that is rotatably attached to the upright tube. And a member. The operation member includes a lid plate that closes the discharge hole from above, and a push portion that rotates the lid plate to open the discharge hole by being pushed forward.

JP 2004-331106 A

  However, in the above-described conventional dispensing container, the discharge hole is only blocked by using the cover plate of the operation member, so that the air in the container body cannot be discharged to the outside. Therefore, there has been a demand for a container that suppresses the contact of air with the contents in the container body and is suitable for storage and the like.

  The present invention has been made in view of such circumstances, and its purpose is to facilitate the discharge of air in the container body, and to suppress the contact of air with the contents, for storage. It is to provide a suitable double container.

(1) A double container according to the present invention includes a container main body including an inner container that accommodates contents and undergoes volume reduction deformation as the contents are reduced, and an outer container in which the inner container is installed; A discharge cap that is attached to the mouth of the container body and discharges the contents to the outside, and is formed to communicate with the inside of the inner container ; A lid that covers the outer container from above, and an outer air introduction hole is formed in the outer container for introducing outside air between the inner container and the outer container. An air hole that communicates with the inside of the inner container is formed, and the lid body allows the air to be discharged from the inside of the inner container through the air hole to the outside, and from the outside through the air hole to the inside of the inner container. Using a check valve that shuts off the inflow of air and exhausted air A blowing unit to sound, characterized in that is provided.

According to the double container of the present invention, the contents can be discharged from the container body to the outside through the discharge hole by releasing the lid from the discharge cap and opening the discharge hole.
When storing the contents, return the lid to its original state, close the discharge hole from above, deform the inner container, and forcibly discharge the air in the inner container to the outside through the air hole. Let At this time, since it has a check valve, it can only discharge air from the inner container to the outside while blocking the inflow of air into the inner container, so the air in the inner container is gradually reduced. Can be made. Moreover, since the negative pressure is generated between the inner container and the outer container due to the volume reduction deformation of the inner container, the outside air (air) can be introduced between the inner container and the outer container through the outside air introduction hole. As a result, the inner container can be kept in a reduced volume deformation state.

  Therefore, the volume of the inner container can be reduced and deformed as the contents are reduced, and the air remaining in the inner container can be suppressed by discharging the air in the inner container to the outside. In particular, since the sound blowing unit is provided, it is possible to notify the user by sounding when air is discharged from the inner container. Therefore, the user can easily grasp that the air in the inner container has been properly discharged, and can easily grasp that the air has been discharged from the inner container by making no sound.

As a result, the contents remaining in the container main body can be stored in a state in which contact with air is suppressed, and the contents can be stored for a long period of time by preventing oxidation of the contents.
In addition, since the inner container can be deformed and deformed, it is possible to hold the contents so as to be wrapped in the inner container before use or during storage. Therefore, even if the double container is moved in a state where the contents are held in the inner container, the contents can be prevented from moving in the inner container. It is possible to prevent chipping and the like from occurring. Therefore, the quality of the contents can be maintained, and it is not necessary to pay special attention to the contents, so it is easy to carry the double container. Such an effect can be particularly effectively achieved when the contents are tablets or the like.

(2) The air hole includes a first air hole for discharging the air in the inner container and a second air hole for discharging the air discharged from the first air hole to the outside, and the check The valve is disposed so as to allow the discharge of air through the first air hole and to block the inflow of air through the first air hole. May also be arranged on the outside.

  In this case, by reducing the volume of the inner container, the air in the inner container can be discharged to the outside through the second air hole after passing through the first air hole and the check valve. And since the blowing part is arrange | positioned rather than the 2nd air hole, it can sound clearly, without making the sound which generate | occur | produces with discharge | emission of air. Therefore, it becomes easy for the user to grasp the discharge of air from the inner container based on the presence or absence of sound.

(3) The lid body is pivotally connected to the discharge cap via a first hinge portion, and has a top cylindrical lid body that covers the discharge hole from above, and the lid body A lid cover that is pivotally connected via a second hinge portion and covers the top wall portion of the lid body from above, and the first air hole is formed in the top wall portion of the lid body. The second air hole may be formed in the lid cover.

  In this case, by rotating the lid body around the first hinge portion, the entire lid body can be quickly detached and attached to the discharge cap, so that the operability can be improved. Further, by rotating the lid cover around the second hinge portion, the top wall portion of the lid body can be exposed, so that, for example, a check valve can be easily attached or inspected.

  According to the double container of the present invention, the air in the container body can be easily discharged, and the contact of air with the contents can be suppressed. Therefore, it can be set as a container suitable for long-term storage of the contents.

It is a longitudinal cross-sectional view which shows embodiment of the double container which concerns on this invention. It is a bottom view of the double container shown in FIG. It is the longitudinal cross-sectional view which expanded the periphery of the opening | mouth part in the double container shown in FIG. It is a longitudinal cross-sectional view of the double container which shows the state which opened the cover body and opened the discharge hole from the state shown in FIG. It is a longitudinal cross-sectional view of the double container which shows the state which has discharged | emitted the air in an inner container outside from the state shown in FIG. It is a longitudinal cross-sectional view of the double container which shows the state which carried out volume reduction deformation of the inner container from the state shown in FIG.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In each drawing used in the following description, the scale is appropriately changed to make each member a recognizable size.

  As shown in FIG. 1, the double container 1 of the present embodiment includes a flexible inner container 2 that accommodates the contents W and undergoes volumetric deformation (squeezing deformation) as the contents W decrease, and A container main body 4 having an outer container 3 in which the inner container 2 is housed, a cylindrical discharge cap 6 that is detachably attached to the mouth 4a of the container main body 4 and has a discharge hole 5 for the contents W; And a cap-like cylindrical lid body 7 which is detachably attached to the discharge cap 6 and covers the discharge hole 5 from above.

The contents W are solid contents such as powders, granules, and tablets, and can be widely selected from various fields such as foods, pharmaceuticals, and industrial products. Specific examples include powdery foods such as powder seasonings and wheat flour. Moreover, granular pharmaceuticals, such as a capsule and a soft capsule, are mentioned. Furthermore, tablet products, such as a refreshing confectionery, a supplement, a chemical | medical agent, are mentioned. However, what was described here is an example of the contents W, and is not limited to these cases.
In FIGS. 1 and 6, the content W is schematically represented by dot pattern hatching, but the shape of the content W is not specified.

The inner container 2 and the outer container 3 are arranged in a state in which their central axes are located on a common axis. The discharge cap 6 and the lid body 7 are arranged coaxially with the common shaft.
In the present embodiment, this common axis is referred to as a container axis O, the lid 7 side along the container axis O is referred to as the upper side, and the opposite side is referred to as the lower side. Further, in a plan view viewed from the container axis O direction, a direction orthogonal 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.

The container body 4 is formed by, for example, blow molding, and is a laminated peelable container (Delami bottle) in which the inner container 2 is detachably laminated on the inner surface of the outer container 3.
As the blow molding, for example, a double (internal and external) laminated parison may be formed by extrusion molding or the like, and the container body 4 may be formed by blow molding this laminated parison (extrusion blow molding). Further, a preform for the outer container and a preform for the inner container are formed by injection molding or the like, and after these are combined in double (inner and outer), the container body 4 is formed by biaxial stretch blow molding. It doesn't matter.
The outer container preform is biaxially stretched and blow molded to form the outer container 3, the inner container preform is placed inside, and then the inner container preform is biaxially stretched and blow molded. By doing so, the container body 4 may be formed.

  The material of the inner container 2 and the outer container 3 is a resin material, and may be the same material or different materials as long as they are detachable combinations. Examples of the resin material include PET (polyethylene terephthalate), PP (polypropylene), PE (polyethylene), nylon (polyamide), EVOH (ethylene-vinyl alcohol copolymer), and the like. Out of these resin materials, the outer container 3 and the inner container 2 are formed in a combination that can be peeled (not compatible).

The container body 4 is formed in a bottomed cylindrical shape in which a mouth portion 4a, a shoulder portion 4b, a body portion 4c, and a bottom portion 4d are connected in order from the upper side. In the illustrated example, the shoulder portion 4b gradually increases in diameter from the upper side toward the lower side, and the body portion 4c is formed in a circular shape in cross section.
The outer container 3 constituting the container body 4 can be squeezed and deformed, and the inner container 2 is deformed and deformed as the outer container 3 is squeezed. Therefore, at least a portion of the outer container 3 positioned in the body 4c can be elastically deformed toward the radially inner side (inner side of the container).

The mouth 4a of the container body 4 is formed so as to extend upward from the upper end opening of the shoulder 4b, and the mouth 2a of the inner container 2 and the mouth 3a of the outer container 3 are laminated. ing.
As shown in FIGS. 1 and 2, the bottom portion 4d is connected to the body portion 4c and is located on the outer peripheral edge portion, and the depression is connected to the grounding portion 10 and raised to the inside of the container. And a recess 11.
In the illustrated example, the depressed recess 11 is formed in a cross shape extending in two directions orthogonal to each other in a plan view as viewed from the container axis O direction. However, the shape of the depressed recess 11 is not limited to this case.

In the depressed recess 11, outside air (air) is formed between the outer rib 3 and the inner vessel 2, and the holding rib 12 that is integrally held with a portion of the outer vessel 3 sandwiching a portion of the inner vessel 2. And an outside air introduction hole 13 for introducing the air.
The holding ribs 12 are formed so as to extend along the radial direction, and a pair of holding ribs 12 are provided so as to be arranged on the opposite side in the radial direction with the container axis O interposed therebetween. The holding rib 12 is formed so as to protrude downward from the depressed recess 11, and the height of the rib is set to be within the depressed recess 11. Thereby, the double container 1 can be stably placed via the grounding portion 10 without being obstructed by the holding rib 12.

For example, after the container body 4 is formed by blow molding, the holding rib 12 applies an external force from both sides in the radial direction in a state where a part of the bottom part of the inner container 2 is sandwiched by a part of the bottom part of the outer container 3. Formed by being adhered. For example, at the time of blow molding, a portion that becomes the holding rib 12 is sandwiched between pinch-off portions of a mold. In this case, the holding rib 12 is formed on the parting line of the mold.
When forming the holding ribs 12, it is preferable to form a plurality of horizontal hole-shaped recesses along the extending direction of the holding ribs 12 so that the opening directions thereof are alternately reversed. By doing in this way, the crimping | compression-bonding part 12a (refer FIG. 1) which crimped | bonded the outer container 3 and the inner container 2 can be arrange | positioned alternately along the holding rib 12, and the inner container 2 pinched | interposed inside It is possible to increase the reliability of retention for a part.

  The outside air introduction hole 13 is a slit formed along the extension line of the holding rib 12, and is formed so as to be positioned between the pair of holding ribs 12.

As shown in FIGS. 1 and 3, the discharge cap 6 protrudes inward in the radial direction from the outer cylinder part 20 screwed into the mouth part 4a of the container body 4 and the upper end part of the outer cylinder part 20, An annular flange portion 21 disposed on the opening edge of the mouth portion 4a of the container body 4 and a discharge cylinder portion 22 protruding upward from the inner edge portion of the flange portion 21 are provided. The discharge cylinder portion 22 communicates with the inside of the inner container 2, and the inside thereof serves as a discharge hole 5 for discharging the contents W.
The discharge cap 6 is not limited to the case where the discharge cap 6 is screwed to the mouth portion 4a of the container main body 4, and may be undercut fitted, for example.

  The lid body 7 is pivotally connected to the discharge cap 6 via the first hinge portion 32, and has a top-like cylindrical lid body 30 that covers the ejection hole 5 from above, and a lid body 30 with respect to the lid body 30. A lid cover 31 that is pivotably connected via a two-hinge portion 33 and further covers the top wall portion 36 of the lid body 30 from above.

The lid body 30 is formed in a cylindrical shape with a peripheral wall portion 35 and a top wall portion 36, and is detachably fitted to the upper end portion of the outer cylinder portion 20 in the discharge cap 6.
The peripheral wall portion 35 surrounds the discharge cylinder portion 22 from the outside in the radial direction, and protrudes upward from the discharge cylinder portion 22. The first hinge part 32 connects the lower end part of the peripheral wall part 35 and the upper end part of the outer cylinder part 20. Thereby, by rotating the lid body 30 around the first hinge portion 32, the entire lid body 7 can be detached from the ejection cap 6 and the ejection hole 5 can be opened (FIG. 4). reference).

The top wall portion 36 is formed with a seal cylinder portion 37 protruding downward. The seal cylinder part 37 is fitted to the discharge cylinder part 22 so as to be freely removable from above (for example, undercut fitting).
A through hole 38 is formed in the central portion of the top wall 36 so as to penetrate the top wall 36 up and down. In the illustrated example, the through hole 38 is formed in a circular shape in a plan view as viewed from the container axis O direction, and is disposed coaxially with the container axis O. In addition, a plurality of first air holes 39 penetrating the top wall part 36 in the vertical direction are formed in the top wall part 36 at intervals in the circumferential direction so as to surround the through hole 38. Thereby, the air in the inner container 2 is discharged from the inner container 2 through the first air holes 39 due to the squeeze deformation of the container body 4.

Furthermore, a stepped portion 40 that is slightly recessed in a circular shape in a plan view viewed from the container axis O direction is formed on the upper surface of the central portion of the top wall portion 36, and a check valve 41 is disposed in the stepped portion 40. Has been.
The check valve 41 includes a shaft portion 42 inserted into the through-hole 38 from above, a valve protruding from the upper end portion of the shaft portion 42 toward the outside in the radial direction, and an outer edge portion seated on the bottom surface of the step portion 40. And a main body 43.
A locking projection 44 is formed at the lower end portion of the shaft portion 42 so as to protrude outward in the radial direction and to lock the top wall portion 36 from below. Thereby, the check valve 41 is attached to the top wall portion 36 in a state in which the check valve 41 is prevented from coming off upward.

  The valve body 43 is formed in a circular shape in a plan view as viewed from the container axis O direction, and is seated in a state where the outer edge portion is in contact with or close to the inner side surface of the stepped portion 40 from the inside in the radial direction. The outer edge portion of the valve main body 43 can be elastically deformed upward. Therefore, the check valve 41 allows the discharge of air from the inside of the inner container 2 through the first air hole 39 to the outside, and the inflow of air from the outside through the first air hole 39 into the inner container 2. Is shut off.

  The first air hole 39 is not limited to be formed so as to surround the through hole 38, and may be disposed between the shaft portion 42 and the outer edge portion of the valve main body 43, for example. Further, the step portion 40 is not essential, and for example, the check valve 41 may be attached so that the outer edge portion of the valve body 43 is seated on the upper surface of the top wall portion 36.

  The lid cover 31 is formed in a dome shape that bulges upward in a convex curved shape, and is detachably fitted to the upper end portion of the peripheral wall portion 35 in the lid main body 30. The second hinge part 33 connects the outer edge part of the lid cover 31 and the upper end part of the peripheral wall part 35. Thereby, by rotating the lid cover 31 around the second hinge portion 33, the top wall portion 36 of the lid body 30 can be largely exposed.

  In the illustrated example, the second hinge portion 33 is disposed on the opposite side in the radial direction from the first hinge portion 32 with the container axis O interposed therebetween. However, the second hinge part 33 only needs to be formed at a position shifted in the circumferential direction with respect to the first hinge part 32, and is disposed on the opposite side of the first hinge part 32 across the container axis O. It is not limited to the case.

  An accommodation recess 45 that is recessed downward is formed in the central portion of the lid cover 31. In the illustrated example, the housing recess 45 is formed in a circular shape in a plan view as viewed from the container axis O direction. There is a slight gap between the lower surface of the housing recess 45 and the check valve 41.

A second air hole 46 is formed in the central portion of the housing recess 45 so as to penetrate the housing recess 45 in the vertical direction and exhaust the air discharged from the first air hole 39 to the outside. The second air hole 46 is formed in a circular shape in a plan view as viewed from the container axis O direction, and is arranged coaxially with the container axis O.
The first air holes 39 and the second air holes 46 function as air holes 47 that communicate the inside and outside of the inner container 2 in cooperation with each other.

Housed in the housing recess 45 is a sounding section 50 that makes a sound using the air discharged through the second air hole 46.
This sounding part 50 is formed in a top cylinder shape having a fitting cylinder part 51 fitted inside the accommodation recess 45 and a top wall part 52 substantially flush with the upper surface of the lid cover 31. 2 The air holes 46 are arranged on the outer side.

A space portion 53 into which the air discharged from the second air hole 46 flows is formed inside the blowing portion 50. A communication hole 54 is formed in the central portion of the top wall portion 52 so as to penetrate the top wall portion 52 in the vertical direction and communicate the space portion 53 with the outside.
In the illustrated example, the communication hole 54 is formed in a circular shape in a plan view when viewed from the container axis O direction, and is disposed coaxially with the container axis O. However, the position and shape of the communication hole 54 are not limited to this case.

  Since the blowing part 50 is arranged in this way, the air discharged from the second air hole 46 is disturbed by a part of the air coming into contact with the top wall part 52, and the air caused by the disturbance of the airflow. Vortices (so-called Karman vortices) are repeatedly generated in the space portion 53, and escape to the outside through the communication holes 54. At this time, pressure fluctuations due to repeated generation and disappearance of air vortices are generated in the space 53, and it is possible to generate sound using the pressure fluctuations as a sound source.

In addition, the upper end part of the arm piece 55 arrange | positioned so that it may overlap with the cover cover 31 from upper direction is connected to the fitting cylinder part 51 of the blowing part 50. FIG. The lower end portion of the arm piece 55 is connected to the outer edge portion of the lid cover 31 via the third hinge portion 56.
Accordingly, the sounding part 50 can be detached from the housing recess 45 by rotating the arm piece 55 around the third hinge part 56. However, the arm piece 55 is not essential and may not be provided.

(Operation of double container)
The case where the double container 1 configured in this way is used will be described.
When discharging the contents W, as shown in FIG. 4, the lid body 30 is rotated around the first hinge portion 32 to disengage the entire lid body 7 from the discharge cap 6, and the discharge hole 5 is released. Accordingly, for example, the contents W can be discharged to the outside through the discharge holes 5 by tilting or upside down the container body 4.

  Thereafter, when storing the contents W, the lid body 30 is rotated in the reverse direction around the first hinge portion 32, and the entire lid body 7 is attached to the discharge cap 6 as shown in FIG. . Then, after closing the discharge hole 5 from above, the outer container 3 of the container body 4 is squeezed (elastically deformed) radially inward. As a result, the inner container 2 is deformed and reduced in volume in the radial direction together with the outer container 3, so that the air in the inner container 2 is changed into the first air hole 39 and the second air hole as shown by arrows in FIG. 46 can be discharged to the outside.

  At this time, since the check valve 41 is provided, the flow of air from the inner container 2 through the first air hole 39 to the outside is blocked while blocking the inflow of air into the inner container 2 through the first air hole 39. Only air can be discharged. Therefore, the air in the inner container 2 can be gradually reduced by repeatedly performing squeeze deformation.

Further, by releasing the squeeze deformation of the container body 4, the outer container 3 starts to be restored and deformed, so that a negative pressure is generated between the outer container 3 and the inner container 2. As a result, outside air can be introduced between the outer container 3 and the inner container 2 through the outer air introduction hole 13, and even if the outer container 3 is restored and deformed, the inner container 2 remains in a reduced volume deformed state. can do.
Therefore, as shown in FIG. 6, the inner container 2 can be deformed and deformed as the contents W decrease, and the air in the inner container 2 is discharged to the outside, so that the air in the inner container 2 is discharged. Can be prevented from remaining.

  In particular, since the air blowing part 50 is provided, the air discharged from the second air hole 46 flows into the space part 53 of the air blowing part 50 as shown in FIG. The so-called Karman vortex) is repeatedly generated, and it is released to the outside through the communication hole 54. At this time, since pressure fluctuations due to repeated generation and disappearance of air vortices occur in the space 53, sound can be generated using the pressure fluctuations as a sound source. Thus, by providing the blowing part 50, when discharging | emitting air from the inner container 2, a sound can be sounded and it can alert | report to a user.

  Therefore, the user can easily grasp that the air in the inner container 2 has been properly discharged, and can easily grasp that the air has been discharged from the inner container 2 by making no sound. . As a result, it is possible to suppress the air from remaining in the container main body 4, and it is possible to preserve the contents W while suppressing the contents W remaining in the container main body 4 from coming into contact with the air.

  Therefore, the oxidation of the content W etc. can be prevented and the influence on the content W by the moisture in the air can be suppressed. More specifically, for example, solidification of the powder content and moisture absorption to the tablet content due to moisture (humidity) in the air can be suppressed. Therefore, according to the double container 1 of the present embodiment, a container suitable for long-term storage of the contents W can be obtained.

  In addition, since the blowing part 50 is housed in the housing recess 45 of the lid cover 31 and is disposed on the outer side of the second air hole 46, the sound generated with the discharge of air is not disturbed. Can sound clearly. Therefore, it is easy for the user to grasp the discharge state of air from the inner container 2 based on the presence or absence of sound.

  Further, since the volume of the inner container 2 can be reduced and deformed as the contents W decrease, the contents W can be held so as to be wrapped in the inner container 2 as shown in FIG. Therefore, even if the double container 1 is moved while the contents W are held by the inner container 2, the contents W can be prevented from moving in the inner container 2, for example, the contents W are in contact with each other. Thus, cracks and chips can be prevented from occurring. In addition, this effect can be especially effective especially when the shape of the content W is large and is dry (in the case of a tablet-like content or the like). Therefore, the quality of the contents W can be maintained, and since it is not necessary to pay special attention to the contents W, the double container 1 is easy to carry.

  Further, by rotating the lid body 30 around the first hinge portion 32, the entire lid body 7 can be quickly detached and attached to the discharge cap 6, so that the operability can be improved. Further, by rotating the lid cover 31 around the second hinge portion 33, the top wall portion 36 of the lid body 30 can be largely exposed, so that the check valve 41 can be easily attached and inspected. It can be carried out. Further, by rotating the arm piece 55 around the third hinge part 56, the sounding part 50 can be detached from the inside of the recess, so that the inspection work of the sounding part 50 and the second air hole 46 can be easily performed. Can do.

  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 embodiment, the inner container 2 is a laminated peelable container in which the inner container 2 is detachably laminated on the inner surface of the outer container 3, but the present invention is not limited to this. For example, the inner container 2 and the outer container 3 It may be a double container in which a gap is secured. However, it is preferable to use a laminate peelable container because versatility can be improved.

  In the above embodiment, the case where the outside air introduction hole 13 is provided in the bottom portion 4d of the container body 4 has been described as an example. However, the position of the outside air introduction hole 13 is not particularly limited. You may form in the opening | mouth part 4a.

In addition, the blowing unit 50 is disposed in the lid body 30 so that a sound is generated using the air discharged through the first air hole 39, and the discharge of air through the second air hole 46 is permitted. Further, the check valve 41 may be disposed on the lid cover 31 so as to restrict the inflow of air through the second air hole 46. Even in this case, the same effect can be achieved.
However, it is possible to make a sound clearly by disposing the blowing unit 50 on the lid cover 31 as in the above embodiment, and it is easy to notify the user.

  Furthermore, the blowing unit 50 is not limited to the configuration of the above-described embodiment, and any sound can be generated as long as the sound can be generated using the discharged air. For example, you may comprise a blowing part so that a sound may be sounded by vibrating a spherical body with the discharged air.

W ... Contents 1 ... Double container 2 ... Inner container 3 ... Outer container 4 ... Container body 4a ... Container body 5 ... Discharge hole 6 ... Discharge cap 7 ... Cover body 13 ... Outside air introduction hole 30 ... Cover body 31 ... cover cover 32 ... first hinge part 33 ... second hinge part 36 ... top wall part of the lid body 39 ... first air hole 41 ... check valve 46 ... second air hole 47 ... air hole 50 ... sounding part

Claims (3)

A container main body including an inner container that contains the contents and is reduced in volume as the contents are reduced, and an outer container in which the inner container is installed;
A discharge cap attached to the mouth of the container body and having a discharge hole for discharging the contents to the outside communicating with the inside of the inner container ;
A lid that is detachably attached to the discharge cap and covers the discharge hole from above so as to be openable,
In the outer container, an outside air introduction hole for introducing outside air between the inner container and the inner container is formed,
The lid is formed with an air hole that communicates the inside and outside of the inner container,
The lid is a check that allows air to be discharged from the inside of the inner container through the air hole to the outside, and blocks the inflow of air from the outside through the air hole into the inner container. A double container comprising: a valve; and a blowing unit that makes a sound using discharged air. The double container according to claim 1,
The air hole includes a first air hole for discharging the air in the inner container, and a second air hole for discharging the air discharged from the first air hole to the outside.
The check valve is disposed so as to allow discharge of air through the first air hole and to block inflow of air through the first air hole;
The double sound container is characterized in that the blowing part is disposed on the outer side than the second air hole. The double container according to claim 2,
The lid body is pivotally connected to the discharge cap via a first hinge portion, and has a top cylindrical cover body that covers the discharge hole from above, and a second hinge with respect to the lid body. A lid cover that is pivotally connected via a portion and covers the top wall portion of the lid body from above,
The first air hole is formed in the top wall portion of the lid body,
The double container, wherein the second air hole is formed in the lid cover.

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