JP7262907B2 - 2 liquid mixing container - Google Patents

Description

The present invention relates to a two-liquid mixing container.

Conventionally, as a container for containing a content liquid, a first liquid and a second liquid different from the first liquid can be divided and stored in separate storage chambers inside the container. A two-liquid mixing container is known which is configured so that a liquid and a second liquid can be easily mixed inside the container.

For example, Patent Document 1 discloses a container body having a mouth portion and a cylindrical body portion with an open lower end, and a first movable bottom mounted inside the body portion so as to be liquid-tight and movable upward. a second movable bottom mounted liquid-tightly and upwardly movable inside the body above the first movable bottom; The first liquid is stored in a first liquid storage chamber defined between the first movable bottom and the second movable bottom, and the first liquid is stored in the first liquid storage chamber, and the first liquid is stored in the first liquid storage chamber more than the second movable bottom of the container body. The second liquid can be stored in the second liquid storage chamber defined in the upper portion, and when the first movable bottom is pushed upward by a push-up member or the like during use, the first liquid can be stored. When the storage chamber is pressurized, the second movable bottom is also pushed upward, and when the second movable bottom reaches the recess, the first liquid storage chamber communicates with the second liquid storage chamber through the recess. A two-liquid mixing container is described in which a first liquid and a second liquid are mixed with each other.

JP 2010-155639 A

However, in the conventional two-liquid mixing container, after the second movable bottom is assembled inside the body, the inside of the container body is filled with the second liquid, and then the container partitioned by the second movable bottom After filling the inside of the body with the first liquid, it is necessary to assemble the first movable bottom on the inside of the body, and the problem is that the work of filling the container with the liquid content and the work of assembling the movable bottom are complicated. was there.

In addition, in the conventional two-liquid mixing container described above, if the first movable bottom is pushed upward by a push-up member or the like during use, the total volume of the first storage chamber and the second storage chamber decreases. There is also a problem that the inside of the container is pressurized in a state in which the mixed liquid of the first liquid and the second liquid is stored, and the content liquid may be unexpectedly ejected from the dispenser or the like during use.

The present invention was developed to solve such problems, and its object is to facilitate mixing of the first liquid and the second liquid, and to provide a filling operation of the content liquid and a movable container. To provide a two-liquid mixing container which facilitates assembly work of the bottom and can suppress unexpected ejection of the contents during use.

The two-liquid mixing container of the present invention comprises a first container body having a mouth portion and a cylindrical body portion with an open bottom end, and is attached to the bottom end of the body portion to close the opening and close the first container body. a second container body defining a first storage chamber for storing the first liquid inside the container body, wherein the second container body is positioned inside the body portion downwardly with respect to the body portion; a movably provided tubular body; an annular bottom wall portion provided at the upper end of the tubular body, the outer peripheral surface of which is in sliding contact with the inner peripheral surface of the body; A first movable bottom mounted movably upward and a second storage chamber for containing a second liquid are partitioned between the first movable bottom mounted in a liquid-tight manner inside the annular bottom wall portion. In addition, a gap is formed between the second storage chamber and the annular bottom wall portion so that the second storage chamber communicates with the first storage chamber, and the second storage chamber can move upward to a communicating position where it is engaged with the annular bottom wall portion. a second movable bottom, which is rotatably mounted on the trunk and rotates relative to the trunk to move the first movable bottom upward and to move the cylindrical body downward; and an operation portion, wherein when the tubular body moves downward, the annular bottom wall portion and the second movable bottom move downward together with the tubular body with respect to the body portion to move the first storage chamber. characterized in that the volume of

In the two-liquid mixing container of the present invention having the above structure, it is preferable that the total volume of the first storage chamber and the second storage chamber is equal before and after the downward movement of the cylindrical body.

The two-liquid mixing container of the present invention has the above configuration, wherein the rotating operation portion is in sliding contact with the outer peripheral surface of the trunk portion; and an inner cylindrical portion disposed on the inner peripheral surface of the operating cylindrical portion, wherein the first pin portion provided on the first movable bottom is a first spiral groove provided on the inner peripheral surface of the inner cylindrical portion. , the rotation of the rotation operation portion is converted into upward movement of the first movable bottom, and the second pin portion provided on the tubular body is engaged with the inner tubular portion. By engaging with a second spiral groove that is provided on the inner peripheral surface of the and inclined in the opposite direction to the first spiral groove, the rotation of the rotation operation portion causes the downward movement of the cylindrical body. Preferably, it is arranged to be transformed.

In the two-liquid mixing container of the present invention having the above structure, it is preferable that a pump-type dispenser is attached to the mouth portion.

According to the present invention, it is possible to easily mix the first liquid and the second liquid, and it is possible to easily perform the filling operation of the content liquid and the work of assembling the movable bottom, and the content liquid at the time of use. It is possible to provide a two-liquid mixing container capable of suppressing the unexpected ejection of the liquid.

1 is a half cross-sectional view of a two-liquid mixing container that is an embodiment of the present invention; FIG. 2 is a half cross-sectional view showing an enlarged portion of a second container body of the two-liquid mixing container shown in FIG. 1. FIG. It is a half cross-sectional view of the second container shown in FIG. 1 alone. 3 is a half cross-sectional view of the second container body shown in FIG. 2 in a state in which the first liquid and the second liquid are mixed; FIG.

Hereinafter, a two-liquid mixing container 1 according to one embodiment of the present invention will be illustrated in detail with reference to the drawings.

In the present specification and claims, the vertical direction means the vertical direction when the two-liquid mixing container 1 is in an upright position as shown in FIG. A direction along a straight line that passes through the axis O of the mixing container 1 and is perpendicular to the axis O, and a circumferential direction means a direction around the axis O.

A two-liquid mixing container 1, which is an embodiment of the present invention shown in FIG. It can be stored separately in a storage chamber R1 or a second storage chamber R2 separate from the first storage chamber R1, and the first liquid L1 and the second liquid L2 can be easily mixed inside the container during use. is possible.

The first liquid L1 and the second liquid L2 contained in the two-liquid mixing container 1 are, for example, liquid cosmetics that exert a predetermined effect when mixed, and the effect is exhibited relatively early after mixing. Anything that disappears can be adopted.

The two-liquid mixing container 1 has a first container body 10 and a second container body 20 .

The first container body 10 has a mouth portion 11 and a body portion 13 integrally connected to the lower end of the mouth portion 11 via a shoulder portion 12 . The mouth portion 11 has a cylindrical shape centered on the axis O, and a male thread 11a is integrally provided on the outer peripheral surface thereof. The body portion 13 has a cylindrical shape coaxial with the mouth portion 11 and has an open bottom end. The first container body 10 can be formed by injection molding a synthetic resin material such as polyethylene terephthalate, for example. can be

The first container body 10 is not limited to the above as long as it has a mouth portion 11 and a cylindrical body portion 13 with an open lower end, and its shape can be changed in various ways, such as not including the shoulder portion 12, for example. be.

The second container body 20 is attached to the lower end of the body portion 13 of the first container body 10 , and closes the opening of the body portion 13 to store the first liquid L1 inside the first container body 10 . R1 is partitioned.

As shown in FIG. 2 , the second container body 20 has a tubular body 21 . The tubular body 21 has a cylindrical shape centered on the axis O, and the inner diameter thereof is smaller than the inner diameter of the trunk portion 13 . The cylindrical body 21 is arranged inside the trunk portion 13 and is movable downward from the position shown in FIG. 2 with respect to the trunk portion 13 .

An annular bottom wall portion 22 is integrally provided at the upper end of the tubular body 21 . The annular bottom wall portion 22 has an annular plate shape with an opening at the center. An annular sealing member 23 is attached to the outer peripheral edge of the annular bottom wall portion 22 . The annular bottom wall portion 22 is in liquid-tight sliding contact with the inner peripheral surface of the trunk portion 13 on the outer peripheral surface provided with the seal member 23 and is movable downward together with the cylindrical body 21 with respect to the trunk portion 13 . there is

A cylindrical fixing tube portion 24 coaxial with the tubular body 21 is arranged outside the tubular body 21 . The fixed cylindrical portion 24 is engaged with the lower end of the body portion 13 at a flange portion 24a integrally provided at the upper end of the fixed cylinder portion 24 so as to be prevented from rotating in the circumferential direction with respect to the body portion 13 and positioned in the vertical direction. .

A slit 24b extending parallel to the axis O is provided in the fixed cylindrical portion 24 . On the other hand, a second pin portion 21c protruding radially outward is provided on the outer peripheral surface of the cylindrical body 21 on the lower end side. The second pin portion 21 c engages with the slit 24 b , thereby preventing rotation of the cylindrical body 21 with respect to the trunk portion 13 via the fixed cylindrical portion 24 . In addition, although only one slit 24b and one second pin portion 21c are shown in FIG. ing.

A first movable bottom 25 is mounted inside the cylindrical body 21 . The first movable bottom 25 integrally has a main body portion 25a having a convex portion that protrudes upward in the central portion, and a side wall portion 25b that extends downward from the outer peripheral edge of the main body portion 25a. The side wall portion 25b has a cylindrical shape that is coaxial with the tubular body 21, and its outer peripheral surface is in sliding contact with the inner peripheral surface of the tubular body 21. As shown in FIG. An annular sealing member 26 is attached to the outer peripheral surface of the side wall portion 25b, and the side wall portion 25b is in liquid-tight sliding contact with the inner peripheral surface of the cylindrical body 21 on the outer peripheral surface provided with the sealing member 26. , so that it can move upward with respect to the cylindrical body 21 .

A first pin portion 25c protruding radially outward is provided on the outer peripheral surface of the lower end side of the side wall portion 25b. The first pin portion 25c is engaged with the slit 24b below the second pin portion 21c, thereby preventing the first movable bottom 25 from rotating with respect to the trunk portion 13 via the fixed cylindrical portion 24. ing. In addition, although only one first pin portion 25c is shown in FIG. are engaged in corresponding slits 24b.

A second movable bottom 27 is mounted inside the annular bottom wall portion 22 . The second movable bottom 27 has a truncated cylindrical shape coaxial with the tubular body 21, and is an annular seal projection provided on the inner peripheral surface of the annular bottom wall portion 22 above the first movable bottom 25. By liquid-tightly contacting 22a, a second storage chamber R2 for storing the second liquid L2 is defined in a portion between the inside of the tubular body 21 and the first movable bottom 25. As shown in FIG. The second movable bottom 27 has a size that allows it to cover the outside of the convex portion of the body portion 25 a of the first movable bottom 25 .

A locking flange 27 a extending radially outward is integrally provided at the lower end of the second movable bottom 27 . A through hole 27b is provided in the peripheral wall portion of the second movable bottom 27 so as to pass through the peripheral wall portion. Although only one through-hole 27b is shown in FIG. 2, a plurality of through-holes 27b are provided in the peripheral wall portion of the second movable bottom 27 at intervals in the circumferential direction. As long as at least one through-hole 27b is provided, the number of through-holes 27b can be varied.

The peripheral wall portion of the second movable bottom 27 slides against the seal projection 22 a on the inner peripheral surface of the annular bottom wall portion 22 , and the outer peripheral end of the locking flange 27 a slides against the inner peripheral surface of the tubular body 21 . By moving, it is possible to move upward with respect to the cylindrical body 21 from the position shown in FIG.

The second movable bottom 27 moves upward with respect to the tubular body 21 from the position shown in FIG. When the second movable bottom 27 and the annular bottom wall portion 22 are reached, a clearance is formed by the through hole 27b, and the second storage chamber R2 communicates with the first storage chamber R1 through the clearance. When the second movable bottom 27 moves to the communicating position, the locking flange 27a abuts against the lower surface of the annular bottom wall portion 22 to lock the second movable bottom 27 to the annular bottom wall portion 22. Movement above the communication position of 27 is restricted.

The inner peripheral surface of the cylindrical body 21 is provided with an upper projection 21a and a lower projection 21b below the upper projection 21a. In the state shown in FIG. 2, the second movable bottom 27 is held at the initial position shown in FIG. When the bottom 27 reaches the communicating position, the locking flange 27a is held between the lower surface of the annular bottom wall portion 22 and the upper protrusion 21a, thereby maintaining the communicating position.

The second container body 20 has a rotary operation part 30 rotatably mounted on the body part 13 . The rotating operation portion 30 is operated by the user to rotate about the axis O with respect to the body portion 13 , thereby moving the first movable bottom 25 upward with respect to the cylindrical body 21 . The cylindrical body 21 is moved downward.

The rotary operation portion 30 includes an operation cylinder portion 31 formed in a cylindrical shape coaxial with the body portion 13 and slidingly contacting the outer peripheral surface of the body portion 13 , and a bottom wall portion 32 integrally connected to the lower end of the operation cylinder portion 31 . It has a cylindrical outer shape with a bottom. An annular groove 13a extending in the circumferential direction is provided on the outer peripheral surface of the body portion 13, and a projection 31a provided on the inner peripheral surface of the operation cylinder portion 31 is undercut-engaged with the annular groove 13a. As a result, the rotary operation portion 30 is retained in a state that it can be rotated with respect to the body portion 13 .

An inner cylinder portion 33 is arranged on the inner peripheral surface of the operation cylinder portion 31 . The inner cylinder portion 33 has a cylindrical shape coaxial with the operation cylinder portion 31 , and is fitted and fixed to the inner peripheral surface of the operation cylinder portion 31 with its lower end in contact with the bottom wall portion 32 . The inner cylindrical portion 33 is prevented from rotating in the circumferential direction with respect to the operating cylindrical portion 31 by, for example, means such as bonding, spline fitting, or the like, so that the inner cylindrical portion 33 rotates integrally with the operating cylindrical portion 31 . there is

A first spiral groove 33 a spirally extending around the axis O is provided on the inner peripheral surface of the inner tubular portion 33 . The first spiral groove 33a extends obliquely such that the other side in the circumferential direction is positioned higher than the one side. In addition, a second spiral groove 33b extending obliquely in the opposite direction to the first spiral groove 33a around the axis O is provided on the inner peripheral surface of the inner cylindrical portion 33 above the first spiral groove 33a. It is That is, the second spiral groove 33b extends at an angle such that the other side in the circumferential direction is positioned lower than the one side.

A first pin portion 25c protruding from a side wall portion 25b of the first movable bottom 25 is slidably engaged with the first spiral groove 33a. A second pin portion 21c protruding from the cylindrical body 21 is slidably engaged with the second spiral groove 33b.

With such a configuration, when the rotating operation portion 30 rotates with respect to the body portion 13, the first pin portion 25c, which is prevented from rotating with respect to the body portion 13 by the slit 24b of the fixed cylindrical portion 24, is moved to the first spiral. By moving along the groove 33 a , the rotation is converted into upward movement of the first movable bottom 25 . Therefore, by rotating the rotating operation portion 30 with respect to the trunk portion 13, the first movable bottom 25 can be moved upward from the position shown in FIG.

Further, when the rotating operation portion 30 rotates with respect to the body portion 13, the second pin portion 21c, which is prevented from rotating with respect to the body portion 13 by the slit 24b of the fixed cylindrical portion 24, moves along the second spiral groove 33b. The rotation is converted into a downward movement of the cylindrical body 21 by moving the cylindrical body 21 by the downward movement. Therefore, by rotating the rotating operation portion 30 with respect to the body portion 13, the cylindrical body 21 can be moved downward from the position shown in FIG. When the cylindrical body 21 moves downward from the position shown in FIG. 2, the annular bottom wall portion 22 provided integrally with the cylindrical body 21 also moves downward.

As shown in FIG. 1 , the two-liquid mixing container 1 may have a configuration in which a pump-type dispenser 40 is attached to the mouth portion 11 .

The dispenser 40 has a mounting cap 41 screwed onto the male thread 11a and mounted on the mouth portion 11. A pump 42 and a suction pipe 43 are suspended inside the first container body 10 and held. When the push-down head 44 is pushed down, the pump 42 is activated, and the liquid sucked into the pump 42 from the lower end of the suction pipe 43 is discharged outside from the nozzle 45 provided in the push-down head 44 . be.

An overcap 46 covering the push-down head 44 may be detachably attached to the attachment cap 41 .

In the two-liquid mixing container 1 having the above configuration, as shown in FIG. 3, the second container body 20 accommodates the second liquid L2 in a sealed state from the outside, even when it is removed from the first container body 10 alone. configured as a possible container. Therefore, with the first movable bottom 25 removed from the cylindrical body 21, the second container body 20 is turned upside down, and after the second storage chamber R2 is filled with the second liquid L2, the first movable bottom 25 is removed. is attached to the cylindrical body 21 to seal the second storage chamber R2, the work of filling the second container body 20 with the second liquid L2 can be easily performed.

In addition, since the work of assembling the second movable bottom 27 to the cylindrical body 21 can be performed before filling the second liquid L2, the work of assembling is also easy.

Further, the second container body 20 filled with the second liquid L2 is returned to the upright position and attached to the lower end of the trunk portion 13 of the first container body 10, thereby allowing the first storage inside the first container body 10. A chamber R1 can be defined. Therefore, after the second container body 20 filled with the second liquid L2 is attached to the lower end of the body section 13 and the first storage chamber R1 is filled with the first liquid L1 through the mouth section 11, the dispenser 40 is inserted into the mouth section 11. , the filling operation of the first liquid L1 can be easily performed.

Thus, in the two-liquid mixing container 1 of the present embodiment, the work of filling the first liquid L1 and the second liquid L2 and the work of assembling the first movable bottom 25 and the second movable bottom 27 to the cylindrical body 21 are carried out. can be easily done.

Further, in the two-liquid mixing container 1 having the above configuration, as shown in FIG. 1, the first liquid L1 and the second liquid L2 are stored separately in the first storage chamber R1 and the second storage chamber R2. can be done. That is, the first liquid L1 and the second liquid L2 can be stored so as to be maintained in a separated state without being mixed with each other during distribution before use. Therefore, for example, as the first liquid L1 and the second liquid L2, a liquid cosmetic that exhibits a predetermined effect when mixed is used, but the effect disappears relatively quickly after mixing. In some cases, the first liquid L1 and the second liquid L2 can be stored while being maintained in good condition without losing the efficacy.

On the other hand, during use, the first liquid L1 and the second liquid L2 can be mixed by a simple operation of rotating the rotating operation portion 30 with respect to the body portion 13 . Specifically, as shown in FIG. 4, when the rotating operation portion 30 is rotated about the axis O with respect to the body portion 13 of the first container body 10, the slit 24b of the fixed cylindrical portion 24 rotates the body. As the first pin portion 25c, which is prevented from rotating with respect to the portion 13, moves along the first spiral groove 33a of the inner cylindrical portion 33, the rotation is converted into upward movement of the first movable bottom 25. As a result, the first movable bottom 25 moves upward from the position shown in FIG. 2 to the position shown in FIG. When the portion 21 c moves along the second spiral groove 33 b of the inner cylindrical portion 33 , the rotation is converted into downward movement of the cylindrical body 21 , and the cylindrical body 21 moves along with the annular bottom wall portion 22 . It moves downward from the position shown in FIG. 2 to the position shown in FIG.

When the first movable bottom 25 moves upward, the inside of the second storage chamber R2 is pressurized, and the pressure pushes the second movable bottom 27 from the position shown in FIG. 2 to the communicating position shown in FIG. It moves upward with respect to the body 21 . As shown in FIG. 4, when the second movable bottom 27 moves to the communicating position with respect to the cylindrical body 21, a part of the through hole 27b opens above the seal projection 22a, thereby A gap is formed by the through hole 27b between 27 and the annular bottom wall portion 22, and the second storage room R2 communicates with the first storage room R1 through the gap. In this state, the first movable bottom 25 moves upward with respect to the second movable bottom 27 to narrow the volume of the second storage chamber R2, thereby increasing the second liquid L2 stored in the second storage chamber R2. is pushed out and flows into the first storage chamber R1 through the gap, and the first liquid L1 and the second liquid L2 are mixed in the first storage chamber R1.

As described above, in the two-liquid mixing container 1 of the present embodiment, the first liquid L1 and the second liquid L2 can be stored separately without being mixed with each other during circulation before use. The first liquid L1 and the second liquid L2 can be mixed by a simple operation of rotating the rotating operation part 30 with respect to the body part 13 .

In addition, in the two-liquid mixing container 1 of the present embodiment, the second movable bottom 27 is in the communicating position, and the second liquid L2 stored in the second storage chamber R2 is pushed through the gap into the first storage chamber R1. While the second movable body 21 and the annular bottom wall portion 22 move downward with respect to the trunk portion 13 and are locked to the annular bottom wall portion 22 at the locking flanges 27a, The bottom 27 also moves downward together with the tubular body 21 and the annular bottom wall portion 22 . Then, when the cylindrical body 21 reaches the lower stroke end, the first movable bottom 25 also reaches the upper stroke end, and the body portion 25a of the first movable bottom 25 is fitted inside the second movable bottom 27. The volume of the second storage chamber R2 is minimized, and the operation of pushing out the second liquid L2 from the second storage chamber R2 to the first storage chamber R1 is completed.

By pushing out the second liquid L2 from the second storage chamber R2 to the first storage chamber R1, the volume of the second storage chamber R2 gradually decreases. And the second movable bottom 27 together with the cylindrical body 21 moves downward from the initial position shown in FIG. Therefore, even if the second liquid L2 is pushed out from the second storage chamber R2 into the first storage chamber R1 and the first liquid L1 and the second liquid L2 are mixed in the first storage chamber R1, the first liquid L1 and the second liquid L2 are mixed. In the state in which the liquid mixed with the second liquid L2 is stored, the first storage chamber R1 is suppressed from being pressurized, and the content liquid is prevented from unexpectedly ejecting from the nozzle 45 of the dispenser 40 during use. can do.

In particular, in the present embodiment, before (the state shown in FIG. 2) and after (the state shown in FIG. 4) the downward movement of the cylindrical body 21, the first storage chamber R1 and the second storage chamber R1 The total volume of R2 is made equal. This prevents the first storage chamber R1 from being pressurized in a state in which the mixed liquid of the first liquid L1 and the second liquid L2 is stored. Unexpected ejection can be prevented more reliably.

Further, in the two-liquid mixing container 1 of the present embodiment, as shown in FIG. A bottom wall portion 32 that continues to the lower end, and an inner cylinder portion 33 that is arranged on the inner peripheral surface of the operation cylinder portion 31 . By engaging with the first spiral groove 33a provided on the inner peripheral surface of the , the rotation of the rotation operation portion 30 is converted into upward movement of the first movable bottom 25, and the cylindrical body 21 The provided second pin portion 21c engages with the second spiral groove 33b provided on the inner peripheral surface of the inner cylinder portion 33 and inclined in the opposite direction to the first spiral groove 33a, thereby rotating the rotation operating portion. 30 is converted into downward movement of the tubular body 21, the rotation of the rotary operation portion 30 is translated into upward movement of the first movable bottom 25 and downward movement of the tubular body 21. It is possible to simplify the structure of the mechanism that converts the movement of the

After the first liquid L1 and the second liquid L2 are mixed, the overcap 46 is removed and the push-down head 44 is pushed down to mix the first liquid L1 and the second liquid L2. A predetermined amount of liquid can be discharged from the nozzle 45 at a time.

It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

For example, in the above-described embodiment, the two-liquid mixing container 1 has a configuration in which the dispenser 40 with a pump is attached to the mouth portion 11. A configuration in which a cap is attached to the mouth portion 11 may be employed, or a configuration in which a cap for simply closing the mouth portion 11 is attached to the mouth portion 11 may be employed.

1 Two-liquid mixing container 10 First container body 11 Mouth portion 11a External thread 12 Shoulder portion 13 Body portion 13a Annular groove 20 Second container body 21 Cylindrical body 21a Upper projection 21b Lower projection 21c Second pin portion 22 Annular bottom wall portion 22a seal protrusion 23 seal member 24 fixed cylindrical portion 24a flange portion 24b slit 25 first movable bottom 25a body portion 25b side wall portion 25c first pin portion 26 seal member 27 second movable bottom 27a lock flange 27b through hole 30 rotation operation Part 31 Operation cylinder part 31a Projection 32 Bottom wall part 33 Inner cylinder part 33a First spiral groove 33b Second spiral groove 40 Dispenser 41 Mounting cap 42 Pump 43 Suction pipe 44 Push-down head 45 Nozzle 46 Overcap O Axis L1 First liquid L2 Second liquid R1 First storage chamber R2 Second storage chamber

Claims (4)

a first container body having a mouth and a cylindrical body with an open lower end;
a second container body that is attached to the lower end of the body and that closes the opening to partition and form a first storage chamber for storing the first liquid inside the first container body;
The second container body is
a tubular body provided inside the trunk portion so as to be movable downward with respect to the trunk portion;
an annular bottom wall portion provided at the upper end of the tubular body, the outer peripheral surface of which is in sliding contact with the inner peripheral surface of the body;
a first movable bottom liquid-tightly mounted inside the tubular body so as to be movable upward;
A second storage chamber, which is liquid-tightly mounted inside the annular bottom wall portion and which stores a second liquid between the first movable bottom portion and the first movable bottom portion, is partitioned and formed between the annular bottom wall portion and the second movable bottom portion. a second movable bottom that forms a gap that communicates two storage chambers with the first storage chamber and that can move upward to a communication position that is engaged with the annular bottom wall portion;
a rotation operation part that is rotatably mounted on the body and moves the first movable bottom upward and the tubular body downward by rotating with respect to the body. ,
When the cylindrical body moves downward, the annular bottom wall portion and the second movable bottom move downward together with the cylindrical body with respect to the body portion, thereby expanding the volume of the first storage chamber. A two-liquid mixing container. 2. The two-liquid mixing container according to claim 1, wherein the total volume of said first storage chamber and said second storage chamber is the same before and after said cylindrical body moves downward. The rotating operation part includes an operation cylinder part that slides on the outer peripheral surface of the body part, a bottom wall part that continues to the lower end of the operation cylinder part, and an inner side arranged on the inner peripheral surface of the operation cylinder part. and a barrel,
A first pin portion provided on the first movable bottom is engaged with a first spiral groove provided on the inner peripheral surface of the inner cylindrical portion, thereby rotating the rotating operation portion to the first position. The second pin portion provided on the cylindrical body is provided on the inner peripheral surface of the inner cylindrical portion and inclined in the opposite direction to the first spiral groove. 2. The second helical groove according to claim 1 or 2, wherein the rotation of the rotation operation portion is converted into downward movement of the cylindrical body by engaging with the second spiral groove that Liquid mixing container. The two-liquid mixing container according to any one of claims 1 to 3, wherein a pump-type dispenser is attached to the mouth.

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