JP6427410B2 - Squeeze container with slit valve - Google Patents

Description

  The present invention relates to a squeeze container.

  DESCRIPTION OF RELATED ART Conventionally, the spray container which sprays the liquid mixture which mixed the liquid and air is known. For example, the spray container described in Patent Document 1 below is mounted with a squeeze deformable container main body in which a liquid such as a disinfectant liquid is contained, a top cylindrical mounting cap attached to the mouth of the container main body, A protrusion for spraying formed so as to expand upward from the top wall of the cap, the inside being a gas-liquid mixing chamber, and a spray hole formed for the spraying protrusion and communicating the gas-liquid mixing chamber with the outside; A pipe that is detachably connected to the top wall of the mounting cap and allows the gas-liquid mixing chamber to communicate with the inside of the container body, a main communication hole and a sub communication hole that cause the gas-liquid mixing chamber to communicate with the inside of the container body, and the container body And a ball for closing the main communication hole when the posture is inverted.

In the spray container configured as described above, when the container body is squeezed in the upright posture, the liquid is introduced into the gas-liquid mixing chamber through the pipe by the increase of the internal pressure, and the air in the container body is the main communication hole and the sub communication hole. It is introduced into the gas-liquid mixing chamber through the communication hole. Thus, the liquid and air can be mixed in the gas-liquid mixing chamber, and the mixed solution can be sprayed to the outside through the spray holes.
On the other hand, when the container main body is in the inverted posture, the ball closes the main communication hole, so when the container main body is squeeze deformed, the liquid is introduced into the gas-liquid mixing chamber through the sub communication hole by the internal pressure rise. Air is introduced into the gas-liquid mixing chamber through a pipe. Accordingly, also in this case, the liquid and the air can be mixed in the gas-liquid mixing chamber, and the mixed solution can be sprayed to the outside through the spray holes.

JP-A-54-10417

  However, in the above-described conventional container, since the gas-liquid mixing chamber and the outside are always in communication with each other through the spray hole, for example, a problem that liquid and air are sprayed without being sufficiently mixed in the gas-liquid mixing chamber There was a problem that only the ink was discharged in advance. Therefore, the quality of the mixed liquid is likely to be varied, and the ejection failure is easily caused.

  The present invention has been made in view of such circumstances, and an object thereof is to be able to obtain a mixed liquid of uniform quality by reliably mixing the contents liquid and air and to obtain the mixed liquid. It is providing a squeeze container which can be discharged stably and vigorously.

In order to achieve the above object, the present invention provides the following means.
(1) In the squeeze container according to the present invention, the content liquid is contained and the volume is reduced and deformed as the content liquid decreases, and the internal space between the inner container and the flexible inner container is externally A squeeze deformable container body including an outer container in which an air introducing hole for introducing air is formed, and a discharge cap attached to an opening of the container body, the discharge cap being provided in the inner container From the internal space through the liquid communication hole communicating, the air introducing passage communicating with the internal space through the air introducing hole, the content liquid introduced from the inside of the inner container through the liquid communicating hole, and the internal space through the air introducing passage The gas-liquid mixing chamber for mixing the introduced air, the communication between the gas-liquid mixing chamber and the liquid communication hole is shut off, and the gas-liquid mixing chamber is elastically deformed when the internal pressure of the inner container rises. Previous The liquid discharge valve communicating with the liquid communication hole, and the communication between the gas-liquid mixing chamber and the outside are shut off, and the gas-liquid mixing chamber and the outside are deformed by elastic deformation when the internal pressure of the gas-liquid mixing chamber rises. And a slit valve for communicating the mixture and discharging the mixed liquid mixed in the gas-liquid mixing chamber to the outside, the liquid discharge valve and the slit valve are integrated, and the air introduction passage is the liquid discharge valve. The gas-liquid mixing chamber is communicated regardless of its movement, and the gas-liquid mixing chamber and the slit valve communicate with the outside .

  According to the squeeze container of the present invention, the internal pressure of the inner container can be increased by squeeze deformation of the container body. Thus, the liquid discharge valve can be elastically deformed to communicate the gas-liquid mixing chamber with the liquid communication hole, and the content liquid in the inner container can be introduced into the gas-liquid mixing chamber through the liquid communication hole. At the same time, air in the internal space can be introduced into the gas-liquid mixing chamber through the air introduction passage by the squeeze deformation of the container body. Accordingly, the content liquid and air can be mixed in the gas-liquid mixing chamber to form a mixed liquid. Further, when the content liquid and air are introduced into the gas-liquid mixing chamber, the internal pressure of the gas-liquid mixing chamber rises, so that the slit valve is elastically deformed to connect the gas-liquid mixing chamber with the outside. Thereby, the mixed liquid can be discharged (sprayed) in the form of mist through the slit valve.

  In particular, the internal pressure of the gas-liquid mixing chamber gradually increases with the introduction of the content liquid and air into the gas-liquid mixing chamber, so that the mixing of the content liquid and the air begins to elastically deform the slit valve. A time can be secured between the two, and the contents liquid and air can be reliably mixed in the meantime. Therefore, it is possible to discharge in the form of a mist a mixed liquid of uniform quality in which the contents liquid and air are sufficiently mixed. In addition, the internal pressure of the gas-liquid mixing chamber can be increased more easily than the external pressure, so the mixed liquid can be discharged stably and vigorously, and the discharge performance can be improved.

In addition, when the squeeze deformation of the container body is released, the outer container starts to be restored and deformed, and a negative pressure is generated between the outer container and the inner container. Air can be introduced. As a result, even if the outer container is restored and deformed, the inner container can be kept in a state of reduced volume deformation (deformed deformation), and the air introduced into the inner space can be used for the next discharge.
In addition, since the air in the internal space can be used, it is possible to prevent the liquid contained in the inner container from contacting the air. Therefore, for example, the present invention can be applied even to a content liquid in which the contact with air is not preferable, and the selectivity of the content liquid can be expanded.
Furthermore, since the liquid discharge valve and the slit valve are integrated, it is not necessary to accurately align the both at the time of assembly, and efficient assembly can be performed.

(2) The discharge cap may be provided with a foam member which is disposed on the outside of the container with respect to the slit valve and which causes the mixed liquid discharged from the slit valve to pass therethrough.

  In this case, since the mist-like mixed liquid discharged from the slit valve can be made to be foamy by passing the foam member, the discharge state can be further changed, and the convenience is improved. In particular, since the mixed liquid of uniform quality is formed into a foam, it can be discharged, for example, in the form of a fine foam without unevenness.

  According to the present invention, the content liquid and the air can be reliably mixed to obtain a mixed liquid of uniform quality, and the mixed liquid can be stably and vigorously discharged in the form of a mist.

It is a figure which shows 1st Embodiment of the squeeze container which concerns on this invention, Comprising: It is a side view of the squeeze container in the state which carried out the sectional view of the discharge cap periphery. It is sectional drawing of the discharge cap periphery shown in FIG. It is sectional drawing of the discharge cap periphery which shows the state which is discharging the mixed liquid in a mist form in the state which turned the opening part of the container main body downward, after opening a cover body from the state shown in FIG. It is a figure which shows 2nd Embodiment of the squeeze container which concerns on this invention, Comprising: It is sectional drawing of a discharge cap periphery. From the state shown in FIG. 4, after opening the lid, the mixed liquid is discharged in the form of mist once with the mouth of the container body facing downward, and then discharged in the form of foam. It is sectional drawing of a cap periphery.

First Embodiment
Hereinafter, a first embodiment of a squeeze container according to the present invention will be described with reference to the drawings.
As shown in FIG. 1 and FIG. 2, the squeeze container 1 of the present embodiment is a flexible inner container 2 in which the content fluid W1 is contained and the volume reduction deformation (deflection deformation) is caused as the content fluid W1 decreases. And a squeeze deformable container main body 4 having an outer container 3 in which the inner container 2 is embedded, and a top cylindrical discharge cap 5 mounted on the mouth 4 a of the container main body 4.

  In addition, the inner container 2 and the outer container 3 are arrange | positioned in the state by which each central axis was located on the common axis. The discharge cap 5 is disposed coaxially with the common axis. In this embodiment, this common axis is referred to as the container axis O, the side of the discharge cap 5 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 seen from the container axis O direction, a direction orthogonal to the container axis O is referred to as a radial direction, and a direction circling around the container axis O is referred to as a circumferential direction.

(Container body)
The container body 4 is formed, for example, by blow molding, and is a delaminated bottle (laminated peelable container) in which the inner container 2 is peelably stacked on the inner surface of the outer container 3.
As the blow molding, for example, the laminated parison combined in a double (inner and outer) by extrusion molding or the like may be formed, and the container body 4 may be formed by direct blow molding of the laminated parison. 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 duplicate (inside and outside), the container body 4 is formed by biaxial stretch blow molding I don't care.
Furthermore, after the preform for the outer container is first biaxially stretch blow molded to form the outer container 3, the preform for the inner container is disposed inside, and then the preform for the inner container is biaxially stretch blow molded The container body 4 may be formed by carrying out.

  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 it is a combination that can be peeled off. For example, the inner container 2 and the outer container 3 may be made of polyester resin such as polyethylene terephthalate resin or polyethylene naphthalate resin, or polyolefin resin such as polyethylene resin or polypropylene resin, polyamide resin such as nylon, ethylene vinyl alcohol double synthetic resin In use, the outer container 3 and the inner container 2 are formed in a combination that allows peeling (no compatibility).

The container main body 4 is formed in a bottomed cylindrical shape in which the opening 4a, the shoulder 4b, the body 4c, and the bottom 4d are sequentially provided from the upper side. The shoulders 4b gradually expand in diameter from the upper side to the lower side. The body 4 c is formed, for example, in a circular shape in a cross sectional view.
Note that at least a portion of the outer container 3 located on the trunk 4c is elastically deformable (squeezable) toward the inside of the container. The inner container 2 is reduced in volume as the outer container 3 squeezes.

The mouth 4 a is configured such that the mouth 2 a of the inner container 2 and the mouth 3 a of the outer container 3 are stacked. An annular folded portion 2b protruding radially outward is formed at the upper end of the mouth 2a of the inner container 2, and the open end of the mouth 3a of the outer container 3 is closed from above using the folded portion 2b It is. Therefore, the mouth 3 a of the outer container 3 is closed by the inner container 2.
An air introducing hole 10 for introducing air from the outside into the internal space R between the outer container 3 and the inner container 2 is formed in the opening 3 a of the outer container 3. Further, on the outer peripheral surface of the opening 3 a of the outer container 3, a male screw portion 11 is formed, and a vertical groove 12 extending along the upper and lower sides is formed.
The longitudinal groove 12 is formed in the outer peripheral surface of the opening 3 a of the outer container 3 in a portion from the air introduction hole 10 to the upper end edge of the opening 3 a.

(Discharge cap)
The discharge cap 5 includes an inner plug portion 20, a cap body 30, and a lid (over cap) 40.
The inside plug portion 20 is disposed on the upper end opening edge of the opening 4 a of the container body 4, and the base portion 21 which closes the opening 4 a of the container body 4 and protrudes downward from the base portion 21. For example, a seal cylinder 22 fluid-tightly fitted inside the opening 4a, an inner cylinder 23 projecting upward from a central portion of the base 21, and an upper cylinder projecting from the base 21 And an outer cylindrical portion 24 surrounding the radial direction 23 from the outer side.

  A plurality of air holes 21a penetrating the base portion 21 vertically are formed at intervals in the circumferential direction at an outer peripheral edge portion of the base portion 21. The outer cylindrical portion 24 protrudes above the inner cylindrical portion 23 and supports the cap main body 30 from below. At the lower end portion of the inner cylindrical portion 23, an inner through hole 23a which penetrates the inner cylindrical portion 23 in the radial direction is formed. Similarly, at the lower end portion of the outer cylindrical portion 24, an outer through hole 24a penetrating the outer cylindrical portion 24 in the radial direction is formed to face the inner through hole 23a in the radial direction.

The base portion 21 extends radially between the inner cylindrical portion 23 and the outer cylindrical portion 24 so as to integrally connect the inner cylindrical portion 23 and the outer cylindrical portion 24, and the inner through hole 23 a and the outer through hole A tunnel-like communicating wall 25 communicating with the hole 24a is formed. Thus, the inside of the inner cylindrical portion 23 communicates with the air introducing hole 10 through the inner through hole 23 a, the inside of the communication wall 25, the outer through hole 24 a, the air hole 21 a and the vertical groove 12, and It communicates with the internal space R between the outer container 3 and the inner container 2.
The air introduction passage 26 is in communication with the inner space R through the air introduction hole 10, the inside of the inner cylindrical portion 23, the inside through hole 23a, the inside of the communication wall 25, the outside through hole 24a, the air hole 21a and the vertical groove 12. Act as.

Furthermore, a liquid communication hole 21b is formed in the base portion 21 at a portion located between the inner cylindrical portion 23 and the outer cylindrical portion 24 so as to communicate with the inside of the inner container 2 through the base portion 21 vertically. There is. The liquid communication hole 21 b is disposed at a position shifted from the communication wall 25 in the circumferential direction. In the illustrated example, the liquid communication hole 21 b is formed in a portion located on the opposite side in the radial direction to the communication wall 25 with the container axis O interposed therebetween.
Inside the outer cylindrical portion 24, a plurality of support ribs 27 for supporting a valve unit 50, which will be described later, are formed at intervals in the circumferential direction.

The cap main body 30 includes a mounting cylinder 31 mounted to the mouth 4 a of the container main body 4 and a top wall 32 continuously connected to the upper end of the mounting cylinder 31 and covering the inside plug 20 from above. It is formed in a top cylindrical shape.
On the inner circumferential surface of the mounting cylinder 31, a female screw 33 screwed to the male screw 11 is formed. The discharge cap 5 is attached to the opening 4 a of the container main body 4 by screwing the attachment tube 31. In addition, the mounting cylinder 31 is not limited to when it is screwed with respect to the opening 4a of the container main body 4, For example, the undercut fitting may be carried out. Further, the lower end portion of the mounting cylinder 31 is in airtight contact with the opening 4 a of the container body 4, and seals between the opening 4 a of the container body 4 and the opening 4 a.

The top wall portion 32 is formed with a level difference (two steps in the illustrated example) such that the central portion 32 a is positioned above the outer portion connected to the mounting cylinder 31. At this time, the central portion 32 a of the top wall portion 32 is in contact with the upper end opening edge of the outer cylindrical portion 24 in the inner plug portion 20. Thus, the cap body 30 is mounted to the mouth 4 a of the container body 4 in a state of being positioned vertically.
An opening 34 for exposing a valve unit 50 to be described later is formed in a central portion 32a of the top wall 32, and an outer holding cylinder 35 and an inner holding cylinder 36 protruding downward, and upward are formed. A protruding discharge cylinder 37 is formed.

  The outer holding cylinder 35 protrudes downward from a portion of the inner plug portion 20 located radially outward of the outer cylindrical portion 24, and is fitted to the outer peripheral surface of the outer cylindrical portion 24. The inner holding cylinder 36 projects downward from a portion positioned radially inward of the outer cylinder portion 24 and is fitted to the inner circumferential surface of the outer cylinder portion 24. Thus, the outer cylindrical portion 24 is held between the outer holding cylinder 35 and the inner holding cylinder 36. Therefore, the inside plug 20 and the cap body 30 are combined with high accuracy. The discharge cylinder 37 is formed in a cylindrical shape along the opening peripheral edge of the opening 34.

A valve unit 50 having a gas-liquid mixing chamber 51 is disposed between the above-described inside plug 20 and the top wall 32 of the cap body 30.
The valve unit 50 is formed of an elastic material such as rubber or elastomer, and is a unit in which the liquid discharge valve 52 and the slit valve 53 are integrated. In the illustrated example, the liquid discharge valve 52 and the slit valve 53 are integrally formed as a valve unit 50. However, the present invention is not limited to the integral formation, and the liquid discharge valve 52 and the slit valve 53 may be formed separately, and may be treated as one unit by combining both into one body in advance.

The liquid discharge valve 52 includes a cylindrical body 55, and an elastically deformable valve body 56 which protrudes radially inward from the inner circumferential surface of the cylindrical body 55 and whose inner end is a free end. Is equipped.
The lower end portion of the cylindrical portion 55 is fitted inside the support rib 27 of the inside plug portion 20, and the outer portion of the upper end portion is in contact with the central portion 32a of the top wall portion 32 from below. Thus, the entire valve unit 50 is accurately combined in a state of being accurately positioned between the inside plug 20 and the top wall 32.

  The slit valve 53 is disposed inside the discharge cylinder 37, and a lower end portion of the cylindrical portion 57 integrally formed on an inner portion of the upper end portion of the cylindrical portion 55, and the cylindrical portion 57 is closed from above. A slit body 59 integrally formed at the upper end of the cylindrical portion 57, and a slit 59 formed at the center of the cylinder body 58 and through which the contents liquid W1 and the liquid mixture W2 (see FIG. 3) can pass; Is equipped.

  Then, the space surrounded by the liquid discharge valve 52 and the slit valve 53 configured as described above includes the content liquid W 1 introduced from the inner container 2 through the liquid communication hole 21 b and the air introduced through the air introduction passage 26. And the above-described gas-liquid mixing chamber 51.

The valve body 56 of the liquid discharge valve 52 has its inner end abut on the upper end opening edge of the inner cylindrical portion 23 of the inner plug portion 20 over the entire circumference so as to be separated from the upper side. The communication with the liquid mixing chamber 51 is shut off.
Therefore, the valve body 56 allows the inflow of the content liquid W1 from the inner container 2 through the liquid communication hole 21b to the gas-liquid mixing chamber 51, and from the gas-liquid mixing chamber 51 to the inner container 2 through the liquid communication hole 21b. Functions as a check valve for regulating the outflow of the liquid W1. The valve body 56 is elastically deformed upward when the internal pressure of the inner container 2 rises, and the gas-liquid mixing chamber 51 and the liquid communication hole 21b are communicated. The inside of the inner cylindrical portion 23 communicates with the gas-liquid mixing chamber 51 regardless of the valve body 56.

The cylindrical body 58 of the slit valve 53 has a slit 59 formed at its central portion, so that it can be elastically deformed up and down from the connecting portion with the upper end of the cylindrical portion 57 as a starting point. In the illustrated example, the cylinder main body 58 is formed in a curved shape that bulges downward from the upper end of the cylinder 57 toward the inside in the radial direction. However, the present invention is not limited to this case, and the cylinder main body 58 may be formed flat.
When the cylinder main body 58 is formed in a curved shape, a larger pressure is required to open the slit 59 as compared with the case where the cylinder main body 58 is formed flat. Therefore, the shape of the cylinder main body 58 may be appropriately designed according to the target spray state (pressure).

The slit valve 53 blocks the communication between the gas-liquid mixing chamber 51 and the outside (closes the valve) by bringing the opening edges of the slit 59 into close contact with each other (closing the valve). By elastically deforming, the opening edges of the slit 59 are separated from each other, and the valve open state in which the passage of the content liquid W1 is permitted. Thus, the gas-liquid mixing chamber 51 can communicate with the outside, and the mixed liquid W2 mixed in the gas-liquid mixing chamber 51 can be discharged to the outside.
In the illustrated example, the slit 59 is formed in a cross shape. However, the slit 59 need not be in the shape of a cross, and may be a single linear slit.

The lid 40 is formed in a top cylindrical shape with the peripheral wall portion 41 and the top wall portion 42, and is detachably fitted to the upper end portion of the mounting cylinder 31 in the cap main body 30.
The central portion 32 a of the top wall portion 42 is formed with a bulging portion 43 that bulges downward so as to correspond to the shape of the slit valve 53. The bulging portion 43 is in contact with the cylinder main body 58 of the slit valve 53 from above, and spreads the slit 59 of the cylinder main body 58 to prevent adhesion of the slit valve 53. Further, on the top wall portion 42, an engagement cylinder 44 which protrudes downward and is engaged with the discharge cylinder 37 undercut is formed. Thereby, the regulation of the elastic deformation of the slit valve 53 by the bulging portion 43 is ensured.

The peripheral wall portion 41 is connected to the mounting cylinder 31 via the hinge portion 45. Thereby, the whole of the lid 40 can be rotated around the hinge 45, and the slit valve 53 can be exposed in accordance with the rotation.
An operation projecting piece 46 is formed on the peripheral wall portion 41 so as to project radially outward from a portion located on the opposite side to the hinge portion 45 with the container axis O interposed therebetween. As a result, the lid 40 can be easily rotated by using the operation projection 46.

(Function of squeeze container)
The case where the squeeze container 1 configured in this way is used will be described.
When the content liquid W1 is to be discharged, the lid 40 of the discharge cap 5 is rotated about the hinge 45 to expose the slit valve 53, and then, as shown in FIG. The outer container 3 is squeeze deformed (elastically deformed) to the inside of the container while tilting the container body 4 so that 4a is directed downward. As a result, the inner container 2 and the outer container 3 are deformed to the inside of the container and the volume is reduced, so the internal pressure of the inner container 2 is increased.

When the internal pressure of the inner container 2 rises to a certain value, the valve body 56 of the liquid discharge valve 52 is elastically deformed and the inner end of the valve body 56 separates from the upper end opening edge of the inner cylindrical portion 23. The chamber 51 and the liquid communication hole 21b can be communicated with each other. Thereby, as shown by the arrow A, the content liquid W1 accommodated in the inner container 2 can be introduced into the gas-liquid mixing chamber 51 through the liquid communication hole 21b.
At the same time, the air in the internal space R can be introduced into the gas-liquid mixing chamber 51 through the air introduction passage 26 as shown by the arrow B by the squeeze deformation of the container body 4. As a result, the content liquid W1 and air can be mixed in the gas-liquid mixing chamber 51 to form the mixed liquid W2.

  Further, when the content liquid W1 and air are introduced into the gas-liquid mixing chamber 51, the internal pressure of the gas-liquid mixing chamber 51 is increased, so that the cylinder body 58 of the slit valve 53 is elastically deformed. Communicate with the outside. Thus, the mixed solution W2 can be discharged (sprayed) in the form of mist toward the outside through the slit 59.

  In particular, the internal pressure of the gas-liquid mixing chamber 51 gradually rises with the introduction of the content liquid W1 and the air into the gas-liquid mixing chamber 51, so that the mixing of the content liquid W1 with the air starts. A time can be secured before the valve 53 opens. Therefore, the content liquid W1 and the air can be reliably mixed during this time, and the mixed liquid W2 of a fixed quality in which the content liquid W1 and the air are sufficiently mixed can be discharged in the form of a mist. In addition, since the internal pressure of the gas-liquid mixing chamber 51 can be easily made higher than the external pressure, the mixed liquid W2 can be discharged stably and vigorously, and the discharge performance can be improved.

Thereafter, by stopping or releasing the squeeze deformation of the container main body 4, when the increase in internal pressure of the inner container 2 is stopped or decreased, the internal pressure of the gas-liquid mixing chamber 51 is decreased. As a result, since the cylinder body 58 of the slit valve 53 is restored and deformed, the slit 59 is closed and the valve is promptly closed. Accordingly, the discharge of the mixed liquid W2 can be stopped. At this time, since the opening edges of the slit 59 are in close contact with each other, the discharge of the liquid mixture W2 can be stopped with a good liquid breakage.
In addition to the closing of the slit valve 53, the valve body 56 of the liquid discharge valve 52 is also returned to the original state by the restoring deformation, and the inner end of the valve body 56 is seated on the upper end opening edge of the inner cylindrical portion 23. Do. Thus, the communication between the gas-liquid mixing chamber 51 and the liquid communication hole 21b can be shut off, and the introduction of the content liquid W1 into the gas-liquid mixing chamber 51 can be prevented.

Furthermore, by stopping or releasing the squeeze deformation of the container main body 4, the outer container 3 starts to be restored and deformed, and a negative pressure is generated between the outer container 3 and the inner container 2. Thus, until the slit valve 53 closes. In the meantime, air can be introduced into the gas-liquid mixing chamber 51 from the outside through the slit 59. Then, the air continuously flows into the inner space R through the air introduction passage 26 and the air introduction hole 10 by the negative pressure.
As a result, even if the outer container 3 is restored and deformed, the inner container 2 can be separated from the inner surface of the outer container 3 and can be kept in a state of reduced volume deformation. Can be used for the discharge of

As described above, according to the squeeze container 1 of the present embodiment, the content liquid W1 and air can be reliably mixed to obtain the mixed liquid W2 of uniform quality, and the mixed liquid W2 is stable and stable. It can be discharged vigorously in the form of mist.
Further, since the air introduced into the internal space R can be used, it is possible to prevent the contents liquid W1 contained in the contents liquid W1 from contacting the air. Therefore, for example, even the content liquid W1 in which the contact with air is not preferable can be applied, and the content liquid W1 can be freely selected. Furthermore, since the valve unit 50 in which the liquid discharge valve 52 and the slit valve 53 are integrated is used, it is not necessary to accurately align the both at the time of assembly, and the squeeze container 1 can be assembled efficiently.

  In the above embodiment, when discharging the mixed liquid W2, the case where the container main body 4 is tilted so that the opening 4a of the container main body 4 faces downward is described as an example, but the slit valve 53 is used Since the container body 4 is at any angle (posture), discharge can be properly performed.

Second Embodiment
Next, a second embodiment of the squeeze container according to the present invention will be described. In the second embodiment, the same parts as those in the first embodiment are indicated by the same reference numerals and the description thereof is omitted.

As shown in FIG. 4, the squeeze container 60 of the present embodiment includes the foam member 61 in which the discharge cap 5 foams the mixed liquid W2.
The foam member 61 is disposed above the slit valve 53 and mounted inside the discharge cylinder 37. The discharge cylinder 37 of the present embodiment protrudes further upward than the first embodiment. A portion of the discharge cylinder 37 located above the slit valve 53 is an enlarged diameter portion 37 a whose inner diameter is larger than that of the other portion of the discharge cylinder 37.

The foam member 61 includes a cylindrical frame 62 fitted inside the enlarged diameter portion 37a, and a mesh member 63 stretched at the upper open end of the frame 62 and having a predetermined mesh formed thereon. ing. The foam member 61 is mounted on the discharge cylinder 37 in a state of being positioned vertically by fitting the frame 62 inside the enlarged diameter portion 37a.
The mesh member 63 has substantially the same height as the upper end opening edge of the discharge cylinder 37. Therefore, in the present embodiment, the bulging portion 43 need not be provided on the top wall portion 42 of the lid 40, and the top wall portion 42 is formed flat.

  In the case of the squeeze container 60 configured in this manner, as shown in FIG. 5, the mixed liquid W2 in the form of mist discharged from the slit valve 53 passes through the mesh member 63 of the foam member 61 to form a foam. Become. Therefore, the foamy content liquid W1 can be discharged to the outside. In particular, since the mixed liquid W2 of uniform quality is stably and vigorously discharged in the form of mist and then formed into a foam, it is possible to form a non-uniform, for example fine-grained foam.

In the present embodiment, the mesh member 63 is provided at the upper opening end of the frame 62. However, the mesh member 63 may be provided at the lower opening end, and both the upper opening end and the lower opening end of the frame 62 may be provided. Alternatively, the mesh member 63 may be provided.
Furthermore, the two foam members 61 are arranged in two layers up and down, and the foam member 61 located on the lower side is disposed so that the mesh member 63 faces the lower side, and the foam member 61 located on the upper side May be arranged such that the mesh member 63 faces upward.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

  For example, in the above embodiment, the inner container 2 is a delaminated bottle that is peelably stacked on the inner surface of the outer container 3 as the container body 4, but is not limited thereto. For example, the inner container 2 and the outer container 3 It does not matter as a double container which was formed separately. However, when it is set as a delamination bottle, since versatility can be improved, it is preferable.

  Further, although the lid 40 is provided in the above embodiment, the lid 40 may not be provided. Furthermore, when the lid 40 is provided, it does not have to be configured to be connected to the cap main body 30 via the hinge portion 45. However, when the lid 40 is connected to the cap main body 30 via the hinge portion 45, the lid 40 can be opened and closed with one touch, for example, which is preferable because it can be used easily and the lid 40 can be prevented from being lost.

R: internal space W1: content liquid 1, 60: squeeze container 2: inner container 3: outer container 4: container main body 4a: opening of container main body 5: discharge cap 10: air introduction hole 21b: liquid communication hole 26: air Introduction passage 51 ... gas-liquid mixing chamber 52 ... liquid discharge valve 53 ... slit valve 61 ... foam member

Claims (2)

A flexible inner container containing a liquid content and reduced in volume as the liquid content is reduced, and an air introducing hole for introducing air from the outside into the inner space between the inner container and the inner container are formed. A squeeze deformable container body comprising an outer container,
And a discharge cap attached to the mouth of the container body,
The discharge cap is
A liquid communication hole communicating with the inside of the inner container;
An air introduction passage communicating with the internal space through the air introduction hole;
A gas-liquid mixing chamber for mixing the content liquid introduced from the inside of the inner container through the liquid communication hole and the air introduced from the inner space through the air introduction passage;
A liquid discharge valve for blocking communication between the gas-liquid mixing chamber and the liquid communication hole, and elastically deforming when the internal pressure of the inner container rises, thereby causing the gas-liquid mixing chamber to communicate with the liquid communication hole;
The communication between the gas-liquid mixing chamber and the outside is shut off, and elastic deformation occurs when the internal pressure of the gas-liquid mixing chamber rises, whereby the gas-liquid mixing chamber and the outside are communicated and mixed in the gas-liquid mixing chamber A slit valve for discharging the liquid mixture to the outside;
The liquid discharge valve and the slit valve are integrated .
The squeeze container is characterized in that the air introduction passage is in communication with the gas-liquid mixing chamber regardless of the movement of the liquid discharge valve, and is in communication with the outside through the gas-liquid mixing chamber and the slit valve. . In the squeeze container according to claim 1,
The squeeze container is characterized in that the discharge cap is disposed on the outer side of the container with respect to the slit valve, and further includes a foam member by passing the mixed solution discharged from the slit valve further. .

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