Two liquid mixing container

Abstract

To provide a two liquid mixing container capable of discharging a mixture in a state of being made foamy while suppressing cost.SOLUTION: A two liquid mixing container 10 has: a container body 1 having a bottom part 1a, a barrel part 1b, and a mouth part 1c, having a first space S1 for storing a first liquid agent L1 inside, and also having a narrowed part 1d formed by denting the barrel part 1b inward, a mouth side barrel part 1f located between the narrowed part 1d and the mouth part 1c, and a squeezable bottom side barrel part 1e located between the bottom part 1a and the narrowed part 1d which are arranged in the barrel part 1b; an inner cylinder 2 extending inside the mouth part 1c and having a lower end 2c located inside the bottom side barrel part 1e; a plug 3 detachably attached to the lower end 2c and partitioning a second space S2 for storing a second liquid agent L2 together with the inner cylinder 2; and a cap 4 having a discharge port 4b communicating with the inside of the inner cylinder 2 and attached to the container body 1.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a two-liquid mixing container, and more particularly to a two-liquid mixing container capable of discharging a foam-like mixed liquid. [Background technology]

[0002] For example, some cosmetics and hair dyes produce a certain effect by mixing two types of liquids. When mixing such liquids, for example, two containers each containing two types of liquid are prepared, and the liquid is transferred from one container to the other container, and the two liquids are mixed in the transferred container.

[0003] When two such containers are used, there is a risk that the positions of the mouths of one container may become misaligned while the liquid is flowing from the mouth of the other container, causing the liquid to overflow.

[0004] On the other hand, Patent Document 1 shows a container in which a concave space for containing a second liquid agent is provided at the bottom of a first container for containing a first liquid agent, and the concave space can be broken by pressing to mix two types of liquid agents. This container also has a pump mechanism, and the mixed liquid can be discharged in the form of foam by pressing down on the operating head. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 4847725 Summary of the Invention [Problem to be solved by the invention]

[0006] On the other hand, when discharging a foamed mixed liquid, providing such a pump mechanism increases the number of parts, leading to increased costs. For this reason, there is a demand for a two-liquid mixing container that can discharge a foamed mixed liquid while keeping costs down.

[0007] In view of the above, an object of the present invention is to provide a two-liquid mixing container capable of discharging a mixed liquid in the form of foam while keeping costs down. [Means for solving the problem]

[0008] The present invention relates to a container body having a bottom, a body, and a mouth, and a first space inside which a first liquid agent is accommodated, the body being provided with a narrowed portion formed by inwardly recessing the body, a mouth-side body portion located between the narrowed portion and the mouth, and a squeezable bottom-side body portion located between the bottom and the narrowed portion; an inner tube extending inside the mouth portion and having a lower end located inside the bottom body portion; a plug that is detachably held at the lower end portion and that, together with the inner cylinder, defines a second space in which a second liquid agent is contained; The two-liquid mixing container has a discharge port that communicates with the inside of the inner cylinder, and a cap that is attached to the container body.

[0009] the discharge port is provided at a position eccentric to a central axis of the container body, It is preferable that the mouth side body portion bulges out towards the side where the discharge port is eccentric.

[0010] It is preferable that the cap has a hinge portion located on the opposite side to the side where the discharge port is eccentric, and a lid portion that covers the discharge port and is connected to the hinge portion.

[0011] the cap has a hinge portion and a lid portion that covers the discharge port and is connected to the hinge portion, It is preferable that the mouth side body portion bulges out toward the opposite side to the side on which the hinge portion is located.

[0012] It is preferable that the bottom side body portion is located to the side of the plug and has a pressing portion that contacts the plug when the bottom side body portion is pressed inward, thereby detaching the plug from the lower end portion. Effect of the Invention

[0013] According to the two-liquid mixing container of the present invention having the above-mentioned configuration, the plug is removed by various means to mix the first liquid agent and the second liquid agent, and then the container body is shaken to make a part of the mixed liquid foamy. Then, by displacing the container body into an inclined position, the foamy part of the mixed liquid having a low specific gravity moves to the periphery of the bottom-side body, and the liquid part of the mixed liquid having a high specific gravity moves to the periphery of the mouth-side body. Here, as described above, the lower end of the inner cylinder is located inside the bottom-side body. Therefore, when the bottom-side body is squeezed, the foamy part of the mixed liquid is introduced from the lower end of the inner cylinder into its inside, and further moves inside the inner cylinder and is discharged from the discharge port. That is, according to the two-liquid mixing container of the present invention, the mixed liquid can be foamed and discharged, and since a pump mechanism is not required, costs can be reduced. [Brief description of the drawings]

[0014] [Figure 1] 1 is a cross-sectional side view of one embodiment of a two-liquid mixing container according to the present invention. FIG. [Diagram 2] 2 is a cross-sectional view taken along line AA shown in FIG. [Diagram 3] 2 is a diagram showing a state in which a foam portion of the mixed liquid is discharged from the two-liquid mixing container shown in FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, a two-liquid mixing container 10, which is one embodiment of the two-liquid mixing container according to the present invention, will be described with reference to the drawings. In this specification and the like, the up-down direction is the direction along the illustrated central axis O (the central axis of the container body 1 described later). The radial direction is the direction perpendicular to the central axis O in a plane perpendicular to the central axis O, and the circumferential direction is the direction rotating around the central axis O in this plane.

[0016] The two-liquid mixing container 10 of this embodiment includes a container body 1, an inner cylinder 2, a plug 3, and a cap 4. All of the members constituting the two-liquid mixing container 10 are made of synthetic resin.

[0017] The container body 1 is plate-shaped in this embodiment, and includes a bottom 1a that is elliptical in plan view centered on a central axis O, a body 1b that is connected to the outer edge of the bottom 1a, and a cylindrical mouth 1c centered on the central axis O provided above the body 1b. A first space S1 is defined inside the container body 1. The first space S1 contains one type of liquid (the first liquid L1 in this embodiment) that is used as, for example, a cosmetic or hair dye and exerts a predetermined effect when two types of liquid (the first liquid L1 and the second liquid L2 in this embodiment) are mixed together. Note that the first liquid L1 and the second liquid L2 in this embodiment are mixed with air, so that at least a part of the mixed liquid becomes foamy.

[0018] A narrowed portion 1d is provided in the body 1b by recessing the body 1b radially inward, slightly above the vertical center. Here, the part of the body 1b located below the narrowed portion 1d is referred to as the bottom side body portion 1e, and the part of the body 1b located above the narrowed portion 1d is referred to as the mouth side body portion 1f.

[0019] In this embodiment, the bottom side body portion 1e is a portion that extends upward from the outer edge of the bottom 1a in the body portion 1b as shown in Fig. 1 (extending in an elliptical cylindrical shape with the same shape as the outer edge of the bottom 1a), and then extends while linearly reducing in diameter as it extends upward. The narrowed portion 1d is a portion that extends upward from the upper end of the bottom side body portion 1e (a portion that becomes cylindrical with the central axis O as the center). The mouth side body portion 1f is a portion that extends upward from the upper end of the narrowed portion 1d while linearly increasing in diameter, then extends upward, and then extends while linearly reducing in diameter as it extends upward to connect with the lower end of the mouth portion 1c.

[0020] The bottom side body portion 1e has a portion (pressing portion 1g) curved radially inward as shown in Fig. 2. The function of the pressing portion 1g will be described later. At least the bottom side body portion 1e of the body portion 1b is flexible, and can be squeezed when force is applied to the bottom side body portion 1e.

[0021] The mouth-side body portion 1f is basically formed in a cylindrical shape centered on the central axis O, but the side where the discharge port 4b described later is located (the left side of the central axis O in FIG. 1) bulges outward in the radial direction. Here, the imaginary lines in FIG. 1 show the basic shape of the mouth-side body portion 1f centered on the central axis O, and the solid lines show the actual shape of the mouth-side body portion 1f bulging on the side where the discharge port 4b is located. Hereinafter, the bulging portion of the mouth-side body portion 1f is referred to as the bulging portion 1h. The outer peripheral surface of the bulging portion 1h is aligned with the outer peripheral surface of the bottom-side body portion 1e (the outer diameter of the bulging portion 1h is approximately the same as the outer diameter of the bottom-side body portion 1e).

[0022] An engagement portion 1j having a male screw shape is provided on the outer peripheral surface of the mouth portion 1c in this embodiment. A holding portion 1k for holding the inner tube 2 is provided on the upper end portion of the mouth portion 1c. The holding portion 1k in this embodiment is shaped so that the top portion bulges outward in the radial direction.

[0023] The inner cylinder 2 includes a tubular portion 2a that extends cylindrically from the bottom to the top around the central axis O, and then extends upward while expanding in diameter. The upper end of the tubular portion 2a is provided with a held portion 2b that fits into and is held by the holding portion 1k. In this embodiment, the held portion 2b extends radially outward from the upper end of the tubular portion 2a, then extends downward, and is formed in such a shape that the lower end bulges radially inward. Here, the lower end of the inner cylinder 2 (the lower end of the tubular portion 2a) is referred to as the lower end 2c. A detailed description of the lower end 2c will be given later.

[0024] The plug 3 has a cylindrical plug outer wall 3a with a diameter larger than that of the inner cylinder 2. A disk-shaped partition wall 3b is provided inside the plug outer wall 3a. A cylindrical plug inner wall 3c that extends upward and has a diameter smaller than that of the plug outer wall 3a is provided on the upper surface of the partition wall 3b. The plug 3 is fitted to the lower end 2c by inserting the lower end 2c into the gap between the plug outer wall 3a and the plug inner wall 3c as shown in the figure, and is detachably held by the inner cylinder 2. In addition, when the plug 3 is held by the lower end 2c, the lower opening of the cylindrical part 2a is closed by the partition wall 3b. Here, the space partitioned by the cylindrical part 2a and the partition wall 3b is referred to as the second space S2. The second space S2 contains the above-mentioned second liquid agent L2.

[0025] The cap 4 has a disk-shaped top wall 4a centered on the central axis O. The top wall 4a has a discharge port 4b that is provided at a position eccentric to the central axis O as shown in FIG. 1 and penetrates the top wall 4a. A discharge tube 4c is provided on the upper surface of the top wall 4a, surrounding the discharge port 4b and extending upward. A cylindrical seal tube 4d is provided on the lower surface of the top wall 4a and extending downward. A cylindrical outer peripheral wall 4e is provided on the outer edge of the top wall 4a and extending downward, and an engaged portion 4f that is female-threaded in this embodiment is provided on the inner peripheral surface of the outer peripheral wall 4e.

[0026] The cap 4 also has a hinge portion 4g, one end of which is integrally connected to the outer circumferential wall 4e, on the side opposite the discharge port 4b, which is eccentric with respect to the central axis O. The cap 4 also has a lid portion 4h, which is cylindrical with a lid and covers the discharge port 4b. The other end of the hinge portion 4g is integrally connected to the lid portion 4h. The lid portion 4h has a lid portion seal tube 4j, which contacts the outer circumferential surface of the discharge tube 4c in the closed position covering the discharge port 4b, as shown in FIG. 1, and a finger hook portion 4k, which protrudes radially outward from the outer circumferential surface of the lid portion 4h on the side opposite to the side where the hinge portion 4g is located.

[0027] In assembling the two-liquid mixing container 10 composed of such members, the first liquid L1 is accommodated inside the container body 1, and the second liquid L2 is accommodated inside the inner tube 2 to which the stopper 3 is attached. Then, the inner tube 2 to which the stopper 3 is attached is inserted inside the mouth 1c, and the held part 2b is fitted into the holding part 1k. As a result, the cylindrical part 2a of the inner tube 2 is held by the container body 1 in a state in which it extends inside the mouth 1c. When the inner tube 2 is attached to the container body 1 in this way, the lower end 2c of the inner tube 2 described above is located inside the bottom side body part 1e as shown in the figure, and the lower end of the stopper outer peripheral wall 3a of the stopper 3 is located inside the pressing part 1g as shown in the figure. In addition, the narrowed part 1d is in a state of facing the cylindrical part 2a in the vicinity thereof, and the first space S1 is narrowed between the narrowed part 1d and the cylindrical part 2a. Then, after the cap 4 is placed on the mouth portion 1c, the cap 4 is rotated to screw the male threaded engaging portion 1j into the female threaded engaged portion 4f, thereby attaching the cap 4 to the mouth portion 1c. Also, by attaching the cap 4 to the mouth portion 1c, the outer peripheral surface of the seal tube 4d can be brought into tight contact with the inner peripheral surface of the tubular portion 2a.

[0028] Next, a method of using the two-liquid mixing container 10 will be described. First, as shown in FIG. 2, the pressing portion 1g is pressed toward the inside of the bottom-side body portion 1e. As described above, the lower end of the outer peripheral wall 3a of the stopper is located inside the pressing portion 1g, so when the pressing portion 1g is pressed, the stopper 3 is inclined with respect to the cylindrical portion 2a as shown by the imaginary line in FIG. 2, and is detached from the cylindrical portion 2a. As a result, the second liquid agent L2 contained in the second space S2 flows into the first space S1, and the first liquid agent L1 and the second liquid agent L2 can be mixed in the first space S1.

[0029] After that, the container body 1 is shaken (for example, the container body 1 is shaken vertically along the central axis O, or the container body 1 is shaken horizontally so as to be tilted with respect to the central axis O), and the mixture of the first liquid L1 and the second liquid L2 is mixed while incorporating air, so that at least a part of the mixture is foamed. Then, the lid 4h is opened by using the finger hook 4k, and the container body 1 is displaced to a tilted position as shown in FIG. 3. As a result, the foamy part of the mixture, which has a low specific gravity, moves mainly to the periphery of the bottom side body 1e, and the liquid part of the mixture, which has a high specific gravity, moves mainly to the periphery of the mouth side body 1f. Here, the lower end 2c of the inner cylinder 2 is located inside the bottom side body 1e. Therefore, when the bottom side body 1e is squeezed, the foamy part of the mixture is introduced from the lower end 2c into the inside of the inner cylinder 2, and further moves inside the inner cylinder 2 toward the discharge port 4b, and is discharged from the discharge cylinder 4c to the outside world.

[0030] In this embodiment, the pressing portion 1g is formed by curving the bottom side body portion 1e radially inward, so that the inner space of the bottom side body portion 1e is narrowed where the pressing portion 1g is located. Therefore, even if the container body 1 is tilted as shown in Fig. 3, the detached plug 3 is unlikely to move near the inner tube 2. In other words, the pressing portion 1g in this embodiment can prevent the plug 3 from blocking the inner tube 2 and preventing the foamy portion of the mixed liquid from being discharged.

[0031] As described above, the first space S1 is narrowed between the narrowed portion 1d and the cylindrical portion 2a. That is, the liquid portion of the mixed liquid that has moved to the periphery of the mouth-side body portion 1f is difficult to pass through this narrowed portion, so that the flow to the bottom-side body portion 1e is suppressed. Therefore, even if the attitude of the container body 1 is changed from the state shown in FIG. 3, only the foamy portion of the mixed liquid can be stably discharged. In particular, in this embodiment, the discharge port 4b is provided at a position eccentric to the central axis O, so that when the container body 1 is displaced to the tilted attitude as shown in FIG. 3, the user holds the container body 1 so that the discharge port 4b is oriented downward without being aware of it. Furthermore, in this embodiment, the hinge portion 4g is provided on the opposite side to the discharge port 4b, so that the lid portion 4h in the open attitude is also oriented on the opposite side to the discharge port 4b. That is, when discharging the foamy portion of the mixed liquid, the user naturally holds the container body 1 so that the lid portion 4h is oriented upward (in other words, the discharge port 4b is oriented downward) so that the lid portion 4h does not get in the way. When the container body 1 is tilted so that the discharge port 4b is positioned downward, the bulging portion 1h is positioned downward. That is, the height of the liquid surface of the liquid portion of the mixed liquid that has moved to the periphery of the mouth-side body portion 1f is lowered by the bulging portion 1h being positioned downward, so that the liquid portion of the mixed liquid is less likely to enter the inside of the cylindrical portion 2a. Therefore, only the foamy portion of the mixed liquid can be discharged more stably.

[0032] Although one embodiment of the present invention has been described above, the present invention is not limited to the specific embodiment, and various modifications and changes are possible within the scope of the spirit of the present invention described in the claims unless otherwise specifically limited in the above description. For example, the configuration of the above-mentioned embodiment can be appropriately added or deleted, and the configuration of one embodiment can be applied to another embodiment. Furthermore, the effects of the above-mentioned embodiment are merely examples of the effects resulting from the present invention, and do not mean that the effects of the present invention are limited to the above-mentioned effects.

[0033] For example, the lid portion 4h in this embodiment is integrally connected to the outer peripheral wall 4e via the hinge portion 4g, but the lid portion 4h may be separated from the outer peripheral wall 4e as a separate member, and the lid portion 4h may be held on the outer peripheral wall 4e using a screw mechanism or the like. In this embodiment, when removing the plug 3 from the inner cylinder 2, the pressing portion 1g is used, which curves the bottom side body portion 1e radially inward, but the shape of the pressing portion 1g is not limited to the one shown in the figure, and may be the same shape as other parts of the bottom side body portion 1e without being curved in this way. In this case, it is preferable to provide a mark or the like indicating that it is the pressing portion 1g on the bottom side body portion 1e. In addition, the means for removing the plug 3 from the inner cylinder 2 is not limited to the method of pushing the bottom side body portion 1e radially inward, and may be, for example, a method of inserting a rod-shaped tool or the like into the discharge port 4b to push down the plug 3. Furthermore, the bulging portion 1h may bulge toward the opposite side to the side where the hinge portion 4g is located, regardless of the position of the discharge outlet 4b (for example, in a two-liquid mixing container 10 having a cap 4 in which the discharge outlet 4b is provided at the position of the central axis O, the bulging portion 1h may bulge toward the opposite side to the side where the hinge portion 4g is located). [Explanation of symbols]

[0034] 1: Container body 1a: bottom 1b: Torso 1c: Mouth 1d: Stenosis 1e: Bottom side torso 1f: Mouth side torso 1g: Pressing part 1h: Bulge 1j: Engagement part 1k: Holding part 2: Inner cylinder 2a: Cylindrical part 2b: Part to be held 2c: Bottom end 3: Plug body 3a: Plug outer peripheral wall 3b: Partition wall 3c: Peripheral wall of plug body 4: Cap 4a:Ceiling wall 4b: Discharge port 4c: Discharge cylinder 4d: Seal cylinder 4e: Outer peripheral wall 4f: Engaged portion 4g: Hinge portion 4h: Lid portion 4j: Lid seal cylinder 4k: Finger hook portion 10: Two - liquid mixing container L1: First liquid agent L2: Second liquid agent O: Central axis S1: First space S2: Second space

Claims

1. a container body having a bottom, a body, and a mouth, and a first space inside which a first liquid agent is accommodated, the body being provided with a narrowed portion formed by inwardly recessing the body, a mouth-side body portion located between the narrowed portion and the mouth, and a squeezable bottom-side body portion located between the bottom and the narrowed portion; an inner tube extending inside the mouth portion and having a lower end located inside the bottom body portion; a plug that is detachably held at the lower end portion and that, together with the inner cylinder, defines a second space in which a second liquid agent is contained; A two-liquid mixing container comprising: a cap having a discharge port communicating with the inside of the inner cylinder and attached to the container body.

2. the discharge port is provided at a position eccentric to a central axis of the container body, 2. The two-liquid mixing container according to claim 1, wherein the mouth side body portion bulges out toward the side where the discharge port is eccentric.

3. 3. The two-liquid mixing container according to claim 2, wherein the cap has a hinge portion located on the opposite side to the side where the discharge port is eccentric, and a lid portion that covers the discharge port and is connected to the hinge portion.

4. the cap has a hinge portion and a lid portion that covers the discharge port and is connected to the hinge portion, 2. The two-liquid mixing container according to claim 1, wherein the mouth side body portion bulges out in a direction opposite to the side on which the hinge portion is located.

5. 2. The two-liquid mixing container according to claim 1, wherein the bottom side body portion is located to the side of the stopper body and has a pressing portion that contacts the stopper body and detaches the stopper body from the lower end portion when the bottom side body portion is pressed inward.

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