Two-liquid mixing container

Abstract

To provide a two-liquid mixing container capable of vigorously jetting a second liquid into an interior of a container body at a predetermined pressure and mixing the second liquid with a first liquid.SOLUTION: A two-liquid mixing container 1 has a container body 10 and a cap 20, the cap 20 includes: a cylindrical body part 21 including a fixed part 21a and a cylinder part 21b; a storage cylinder part 22 whose inside becomes a second storage chamber R2; a nozzle part 23 with an injection hole 23a; a closing member 24 equipped with a rupture valve 24b partitioned by a thin skin line part 24a; a rotary operation part 25 screwed to the outside of the cylindrical body part 21; and a piston part 26 that defines and forms a cylinder chamber R3 filled with air inside the cylinder part 21b.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a two-liquid mixing container that stores a first liquid and a second liquid separately and allows the first liquid and the second liquid to be easily mixed when in use. [Background technology]

[0002] Two-liquid mixing containers are used, for example, to mix a liquid extract having a flavor with a beverage contained in the container body to produce a final beverage.

[0003] A known example of such a two-liquid mixing container is one that includes a container body that stores the first liquid, an inner tube with a partition that opens by sliding at the bottom end, a base fixed to the mouth, an intermediate tube that fits inside the inner tube and, together with the inner tube, defines a storage chamber for the second liquid, and a cap that is attached to the base by a screw connection; when the cap is rotated in the tightening direction relative to the base and moved downward, the lid is pushed by the intermediate tube and opens, and the second liquid stored in the storage chamber flows into the container body and mixes with the first liquid (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-52786 Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned conventional two-liquid mixing container, when the cap moves downward relative to the base and the lid body is opened, the second liquid flows under its own weight into the inside of the container body through the opening created by the opening of the lid body.

[0006] However, when the second liquid is a liquid extract, there is a demand for the second liquid to be forcefully sprayed into the container body at a predetermined pressure to mix with the first liquid, and in this respect, there was room for improvement in conventional two-liquid mixing containers.

[0007] The present invention was developed to solve these problems, and its purpose is to provide a two-liquid mixing container that can spray the second liquid forcefully into the inside of the container body at a predetermined pressure to mix it with the first liquid. [Means for solving the problem]

[0008] The two-liquid mixing container of the present invention is a two-liquid mixing container having a container body with a cylindrical mouth portion and a first storage chamber for storing a first liquid, and a cap attached to the mouth portion, which is equipped with a second storage chamber for storing a second liquid to be mixed with the first liquid, wherein the cap comprises a cylindrical tubular portion having a fixing portion fixed to the mouth portion and a cylinder portion, a tubular storage portion connected to the lower end of the cylinder portion and having an interior which becomes the second storage chamber, a nozzle portion connected to the lower end of the tubular storage portion and having an injection hole opening toward the interior of the container body, a closing member having a rupture valve partitioned by a thin-walled line portion and provided between the second storage chamber and the injection hole to close a passage between the second storage chamber and the injection hole, a rotation operation portion attached to the outside of the tubular portion by a screw connection and movable downward relative to the tubular portion by rotating relative to the tubular portion, and a valve connected to the rotation operation portion and disposed inside the cylinder portion, which closes the interior of the cylinder portion with air. and is connected to the second storage chamber A piston portion that defines a cylinder chamber. When the rotation operation part moves downward relative to the cylindrical part, the piston part moves downward together with the rotation operation part, the air inside the cylinder chamber is pressurized, and the second liquid inside the second storage chamber is pressurized by the air. The device further includes a pressing part that is provided in connection with the piston part and faces above the break valve with a predetermined gap therebetween, and is configured to press the break valve to break the thin-walled line part when the rotation operation part moves downward a predetermined distance relative to the cylindrical part. A protrusion that protrudes upward is provided at a part of the circumferential direction along the thin-walled line part of the break valve, and a thick-walled part that is thicker than the thin-walled line part is provided at a diagonal part of the part of the thin-walled line part where the protrusion is provided. It is characterized by:

[0011] In the two-liquid mixing container of the present invention, in the above configuration, it is preferable that a ratchet mechanism be provided between the outer surface of the cylindrical portion and the inner surface of the rotation operating portion, which operates to allow rotation of the rotation operating portion in the tightening direction relative to the cylindrical portion and to prevent rotation of the rotation operating portion in the loosening direction relative to the cylindrical portion.

[0012] In the two-liquid mixing container of the present invention having the above-mentioned configuration, it is preferable that the cylindrical body portion, the cylindrical storage portion, and the nozzle portion are integral with each other.

[0013] In the two-liquid mixing container of the present invention, in the above configuration, it is preferable that a pressurized cylindrical portion is provided below the piston portion and is placed inside the second storage chamber when the rotation operating portion moves downward a predetermined distance relative to the cylindrical portion. [Effects of the Invention]

[0014] According to the present invention, it is possible to provide a two-liquid mixing container that can spray the second liquid forcefully into the inside of the container body at a predetermined pressure to mix it with the first liquid. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a half cross-sectional view of a two-liquid mixing container according to one embodiment of the present invention. [Figure 2] 2 is an enlarged cross-sectional view of a cap portion of the two-liquid mixing container shown in FIG. 1. FIG. [Figure 3] FIG. 3 is a plan view of the closing member shown in FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Figure 5] FIG. 2 is a plan view of the cap shown in FIG. [Figure 6] FIG. 3 is a cross-sectional view taken along line BB in FIG. [Figure 7] 2 is a cross-sectional view showing the two-component mixing container shown in FIG. 1 in a state where the rotation operating part has moved downward relative to the cylindrical part to a position where the pressing part abuts against the protrusion of the rupture valve. FIG. [Figure 8] 2 is a cross-sectional view of the two-liquid mixing container shown in FIG. 1, showing a state in which the break valve is open and the second liquid is being sprayed toward the inside of the container body. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] A two-liquid mixing container 1 according to one embodiment of the present invention will be described in detail below with reference to the drawings.

[0017] In this 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 Figure 1, the radial direction means the direction along a line that passes through the axis O of the two-liquid mixing container 1 and is perpendicular to the axis O, and the circumferential direction means the direction around the axis O.

[0018] The two-liquid mixing container 1 shown in Figure 1 has a container body 10 and a cap 20 attached to the mouth 11 of the container body 10, and can store a first liquid L1 in a first storage chamber R1 inside the container body 10, and a second liquid L2 to be mixed with the first liquid L1 in a second storage chamber R2 provided in the cap 20, and can easily mix the first liquid L1 and the second liquid L2 inside the container body 10 when in use.

[0019] The first liquid L1 and the second liquid L2 are different types of liquids. In this embodiment, the first liquid L1 stored in the first storage chamber R1 of the container body 10 is a beverage, and the second liquid L2 stored in the second storage chamber R2 of the cap 20 is a liquid extract having a flavor.

[0020] The first liquid L1 and the second liquid L2 are not limited to the above-mentioned beverages and extracts, but may also be, for example, liquid medicines or liquid cosmetics, etc., which, when mixed, produce a liquid that exhibits a predetermined effect, but which loses its effect relatively quickly after mixing.

[0021] The container body 10 is bottle-shaped, having a mouth 11 and a cylindrical body 13 with a bottom that is connected to the lower end of the mouth 11 via a shoulder 12. The mouth 11 is cylindrical, centered on an axis O, and has a male thread 11a integrally formed on its outer periphery. The interior of the body 13 forms a first storage chamber R1 that stores a first liquid L1.

[0022] The container body 10 can be made of synthetic resin, for example, polyethylene terephthalate, low-density polyethylene, high-density polyethylene, or other synthetic resin material, formed by blow molding or injection molding, but can also be made of other materials, for example, glass, metal, or the like.

[0023] The container body 10 is not limited to the above-mentioned shape, and its shape can be variously modified as long as it has a cylindrical opening 11 and a first storage chamber R1.

[0024] As shown in FIG. 2, the cap 20 has a fixed member 20A and a movable member 20B.

[0025] The fixing member 20A has a cylindrical body portion 21, a storage cylindrical portion 22, a nozzle portion 23, and a blocking member 24. In this embodiment, the fixing member 20A has a configuration in which the cylindrical body portion 21, the storage cylindrical portion 22, and the nozzle portion 23 are integrally formed by, for example, injection molding of a synthetic resin material.

[0026] The tubular body portion 21 has a cylindrical shape and includes a fixed portion 21a that is fixed to the mouth portion 11 and a cylinder portion 21b. In this embodiment, the tubular body portion 21 has a larger diameter than the mouth portion 11 and is cylindrical and coaxial with the mouth portion 11.

[0027] The fixing portion 21a is disposed on the outside of the mouth portion 11, and is fixed to the mouth portion 11 by threading a female thread 21c provided on its inner peripheral surface into the male thread 11a. A skirt portion 21d that spreads outward in the radial direction is integrally formed and connected to the lower end of the fixing portion 21a. The cylinder portion 21b is integrally formed and connected to the upper end of the fixing portion 21a, and is disposed above the upper end of the mouth portion 11.

[0028] The cylindrical storage portion 22 is provided so as to be continuous with the lower end of the cylinder portion 21b. In this embodiment, the cylindrical storage portion 22 is generally cylindrical and has a smaller diameter than the cylindrical portion 21, and is provided so as to be integrally connected to the lower end of the cylinder portion 21b via a flange-shaped portion 22a. The cylindrical storage portion 22 is disposed inside the mouth portion 11 coaxially with the mouth portion 11, and its interior forms a second storage chamber R2 that stores the second liquid L2.

[0029] The nozzle portion 23 has an injection hole 23a that opens toward the inside of the container body 10, and is provided continuous to the lower end of the cylindrical storage portion 22. In this embodiment, the nozzle portion 23 is a cylindrical shape with a bottom that is smaller in diameter than the cylindrical storage portion 22, and is provided continuous to the lower end of the cylindrical storage portion 22 via a stepped portion 23b. The bottom portion of the cylindrical storage portion 22 has a tapered shape, and the injection hole 23a is provided in the center of the lower end along the axis O. The inner diameter of the injection hole 23a is sufficiently smaller than the inner diameter of the cylindrical storage portion 22.

[0030] The blocking member 24 includes a breakable valve 24b defined by a thin-walled line portion 24a. The breakable valve 24b is disposed between the second storage chamber R2 and the injection hole 23a and blocks the passage between the second storage chamber R2 and the injection hole 23a. As shown in FIGS. 3 and 4, in this embodiment, the blocking member 24 includes a cylindrical support portion 24d having an annular flange portion 24c integrally connected to its upper end. The breakable valve 24b is integrally disposed inside the support portion 24d via the thin-walled line portion 24a. The thin-walled line portion 24a has a circular annular shape centered on an axis O extending along the inner circumferential surface of the support portion 24d. The breakable valve 24b is defined by the thin-walled line portion 24a and has a generally circular plate shape in plan view that is curved upward and convex. The thin-walled line portion 24a is thinner than the breakable valve 24b and is configured to break more easily than the breakable valve 24b.

[0031] 2, the closing member 24 is fixed to the nozzle portion 23 by fitting the flange-shaped portion 24c into the stepped portion 23b and the support portion 24d into the inside of the nozzle portion 23. Because the support portion 24d is fitted into the inside of the nozzle portion 23, the inside of the support portion 24d forms a passage between the second storage chamber R2 and the injection hole 23a, and this passage is closed by the rupture valve 24b that is integrally connected to the inside of the support portion 24d via the thin-walled line portion 24a.

[0032] In this embodiment, a protrusion 24e that protrudes upward is provided in a portion of the circumferential direction along the thin-walled line portion 24a of the breakable valve 24b, and a thick-walled portion 24f is provided in a diagonal portion (the portion opposite the axis O) of the thin-walled line portion 24a to the portion where the protrusion 24e is provided. In this embodiment, the protrusion 24e is in the shape of a block extending a predetermined circumferential width on one side of the axis O of the breakable valve 24b, and protrudes upward further than the other portions of the breakable valve 24b. The thick-walled portion 24f is provided in a diagonal portion of the thin-walled line portion 24a to the portion where the protrusion 24e is provided, extending a predetermined circumferential width along the thin-walled line portion 24a, thereby increasing the thickness of the thin-walled line portion 24a in that portion. As a result, the thin-walled line portion 24a is less likely to break at the diagonal portion where the protrusion 24e is provided than at other portions, and if the other portion breaks, the break valve 24b will rotate and open using the thick portion 24f as a fulcrum.

[0033] The movable member 20B has a rotation operation portion 25, a piston portion 26, a pressure cylinder portion 27, and a pressing portion .

[0034] The rotation operation unit 25 is attached to the outside of the cylindrical body portion 21 by screw connection, and is movable downward relative to the cylindrical body portion 21 by rotating relative to the cylindrical body portion 21. In this embodiment, the rotation operation unit 25 is cylindrical with a larger diameter than the cylindrical body portion 21, and is arranged coaxially on the outside of the cylindrical body portion 21. A male thread 21e is integrally formed on the outer circumferential surface of the cylindrical body portion 21, and the rotation operation unit 25 is attached to the outside of the cylindrical body portion 21 by screwing a female thread 25a, which is integrally formed on the inner circumferential surface of the cylindrical body portion 21, into the male thread 21e. Therefore, the rotation operation unit 25 can move downward by a predetermined distance relative to the cylindrical body portion 21 by rotating in the tightening direction relative to the cylindrical body portion 21.

[0035] In an initial state, the rotation operation unit 25 is disposed at a predetermined vertical position relative to the cylindrical body 21 so that a predetermined distance is maintained between the lower end of the rotation operation unit 25 and the upper end of the skirt portion 21d of the cylindrical body 21. When attaching the rotation operation unit 25 to the cylindrical body 21, a jig 30 is placed to define the dimension between the lower end of the rotation operation unit 25 and the upper end of the skirt portion 21d, so that the rotation operation unit 25 is disposed at a predetermined vertical position relative to the cylindrical body 21.

[0036] As shown in Fig. 5, the rotary operation unit 25 may have a configuration in which a plurality of vertically aligned ribs 25b are provided at equal intervals around the circumference on its outer circumferential surface to prevent slipping when a user manually rotates the rotary operation unit 25. For convenience, only one rib 25b is labeled in Fig. 5.

[0037] As shown in FIG. 2, the piston portion 26 is connected to the rotary operating unit 25 and disposed inside the cylinder portion 21b to define a cylinder chamber R3 filled with air within the cylinder portion 21b. In this embodiment, the piston portion 26 includes a support portion 26a integrally connected to the inner peripheral edge of the annular top wall 25c of the rotary operating unit 25, and an annular seal body 26b fitted and fixed to the outer peripheral surface of the lower end portion of the support portion 26a and supported by the support portion 26a. The support portion 26a is cylindrical and has a smaller diameter than the cylinder portion 21b and is disposed inside the cylinder portion 21b. The seal body 26b is formed of an elastic material such as synthetic rubber and is in airtight contact with the inner peripheral surface of the cylinder portion 21b along its entire circumference. Within the cylinder portion 21b, the piston portion 26 defines a cylinder chamber R3 below the piston portion 26. The cylinder chamber R3 communicates with a second storage chamber R2 provided inside the storage cylindrical portion 22.

[0038] When the rotation operating part 25 rotates in the tightening direction relative to the cylindrical part 21 and moves downward relative to the cylindrical part 21 by a predetermined distance, the piston part 26 moves downward along the cylinder part 21b together with the rotation operating part 25, narrowing the volume of the cylinder chamber R3 and pressurizing the air inside the cylinder chamber R3.

[0039] When the piston portion 26 is disposed inside the cylinder portion 21b, in order to prevent the interior of the cylinder chamber R3 from being excessively pressurized, a plurality of ventilation grooves 26c may be provided on the inner surface of the cylinder portion 21b, extending upward from above the lower end of the sealing body 26b.

[0040] The pressurizing cylinder portion 27 has a cylindrical shape with a smaller diameter than the storage cylinder portion 22, and is provided below the piston portion 26 and integrally connected to the lower end of the support portion 26a. In an initial state, the pressurizing cylinder portion 27 is disposed inside the cylinder chamber R3, and when the rotation operating part 25 rotates in the tightening direction with respect to the cylindrical body portion 21 and moves downward a predetermined distance relative to the cylindrical body portion 21, the pressurizing cylinder portion 27 moves downward together with the rotation operating part 25 and the piston portion 26 and is disposed inside the second storage chamber R2. By disposing the pressurizing cylinder portion 27 inside the second storage chamber R2, the volume of the second storage chamber R2 is narrowed, thereby raising the liquid level of the second liquid L2 inside the second storage chamber R2 and further pressurizing the air inside the cylinder chamber R3 that has been pressurized by the descent of the piston portion 26.

[0041] The pressing portion 28 is connected to the piston portion 26 via the pressurizing cylindrical portion 27 and faces the break valve 24b above with a predetermined gap therebetween. The pressing portion 28 is configured to press the break valve 24b and break the thin-walled wire portion 24a when the rotation operating portion 25 moves downward a predetermined distance relative to the cylindrical portion 21. In this embodiment, the pressing portion 28 has a cylindrical shape with a smaller diameter than the nozzle portion 23 and is integrally connected to the lower end of the pressurizing cylindrical portion 27 via a flange-shaped portion 28a so as to be coaxial with the pressurizing cylindrical portion 27. The vertical distance between the lower end of the pressing portion 28 and the break valve 24b is smaller than the predetermined distance that the rotation operating portion 25 moves downward relative to the cylindrical portion 21 when it rotates in the tightening direction relative to the cylindrical portion 21. Therefore, when the rotation operating part 25 rotates in the tightening direction relative to the tubular part 21 and moves downward relative to the tubular part 21 by a predetermined distance, the pressing part 28 moves downward together with the rotation operating part 25, the piston part 26 and the pressurizing tubular part 27, pushing the rupture valve 24b downward and causing the thin-walled wire part 24a to rupture.

[0042] At this time, in the two-liquid mixing container 1 of this embodiment, a protrusion 24e that protrudes upward is provided at a portion of the circumferential direction along the thin-walled line portion 24a of the breakable valve 24b, so that the pressing portion 28 first abuts against the protrusion 24e and can break the thin-walled line portion 24a in order, starting from the portion where the protrusion 24e is provided. As a result, when the breakable valve 24b is pressed by the pressing portion 28, the thin-walled line portion 24a can be easily broken with a small force, and the breakable valve 24b can be reliably opened.

[0043] The two-liquid mixing container 1 of this embodiment can also be configured so that a ratchet mechanism 40 is provided between the outer peripheral surface of the cylindrical portion 21 and the inner peripheral surface of the rotation operation part 25. The ratchet mechanism 40 operates to allow rotation of the rotation operation part 25 in a direction to tighten the cylindrical portion 21, but to prevent rotation of the rotation operation part 25 in a direction to loosen the cylindrical portion 21. In this embodiment, the ratchet mechanism 40 is provided between the outer peripheral surface of an upper end portion 41 of the cylindrical portion 21 within a predetermined range from the upper end, including the cylinder portion 21b, and the inner peripheral surface of the rotation operation part 25.

[0044] More specifically, the ratchet mechanism 40 includes a plurality of locking pawls 42 integrally arranged at equal intervals in the circumferential direction on the outer peripheral surface of the upper end portion 41 of the tubular body 21, and a plurality of locking projections 43 integrally arranged at equal intervals in the circumferential direction on the inner peripheral surface of the rotation operation part 25. The locking pawls 42 extend toward one circumferential direction centered on the axis O and are elastically deformable radially inward, while the locking projections 43 are wedge-shaped and gradually protrude radially inward toward the other circumferential direction centered on the axis O. The ratchet mechanism 40 operates such that when the rotation operation part 25 rotates in the tightening direction relative to the tubular body 21, the locking projections 43 overcome the locking pawls 42 to allow the rotation. On the other hand, the ratchet mechanism 40 operates such that when the rotation operation part 25 rotates in the loosening direction relative to the tubular body 21, the locking projections 43 engage with the locking pawls 42 to prevent the rotation. 6, only a quarter of the circumferential range of the ratchet mechanism 40 is shown, and only one locking pawl 42 and locking projection 43 are labeled with a reference numeral.

[0045] Next, a method of using the two-liquid mixing container 1 having the above-described structure will be described.

[0046] As shown in Figures 1 and 2, the first storage chamber R1 of the container body 10 is filled with the first liquid L1, the second storage chamber R2 of the cap 20 is filled with the second liquid L2, and the cap 20 is attached to the mouth portion 11. At this time, the rotation operation part 25 of the cap 20 is in an initial position relative to the cylindrical part 21. In this state, the first liquid L1 and the second liquid L2 are stored separately in the two-liquid mixing container 1, so that deterioration of the flavor or properties of the first liquid L1 or the second liquid L2 can be suppressed.

[0047] 1 and 2, the rotation operation part 25 is rotated in the tightening direction relative to the cylindrical part 21 to move the rotation operation part 25 downward relative to the cylindrical part 21. This causes the movable member 20B to move downward relative to the fixed member 20A.

[0048] 7, when the rotation operating part 25 moves downward a predetermined distance relative to the cylindrical part 21, the lower end of the pressing part 28 comes into contact with the protrusion 24e provided on the break valve 24b. At this time, the piston part 26 moves downward together with the rotation operating part 25, thereby narrowing the volume of the cylinder chamber R3 and pressurizing the air inside the cylinder chamber R3. Furthermore, when the rotation operating part 25 moves downward a predetermined distance relative to the cylindrical part 21, the pressurizing cylindrical part 27 enters the second storage chamber R2, narrowing the volume of the second storage chamber R2, causing the liquid level of the second liquid L2 to rise toward the cylinder chamber R3 and further pressurizing the air inside the cylinder chamber R3.

[0049] 7, when the rotation operating part 25 is further rotated in the tightening direction relative to the cylindrical part 21, the rotation operating part 25 moves further downward relative to the cylindrical part 21, as shown in Fig. 8. As a result, the pressing part 28 presses the protrusion 24e, causing the thin-walled line part 24a to break and the break valve 24b to open.

[0050] When the break valve 24b is opened, the second liquid L2 stored in the second storage chamber R2 is sprayed from the spray hole 23a of the nozzle portion 23 toward the inside of the container body 10, i.e., the first storage chamber R1, and mixed with the first liquid L1 inside the first storage chamber R1. At this time, the air inside the cylinder chamber R3 is pressurized, so the second liquid L2 is forcefully sprayed from the spray hole 23a in a state pressurized by the air. Therefore, the second liquid L2 is efficiently mixed with the first liquid L1 so that its properties and effects are appropriately exerted.

[0051] Thus, with the two-liquid mixing container 1 of this embodiment, by simply rotating the rotation operating part 25 relative to the cylindrical part 21, the second liquid L2 can be forcefully sprayed from the spray hole 23a toward the inside of the container body 10 and mixed with the first liquid L1.

[0052] Furthermore, according to the two-liquid mixing container 1 of this embodiment, the air pressure inside the cylinder chamber R3 when the rupture valve 24b is opened can be set to a predetermined value by the downward movement stroke of the rotary operating part 25, the volume of the cylinder chamber R3, and the amount of the second liquid L2 filled in. Therefore, the second liquid L2 can always be sprayed from the spray hole 23a toward the inside of the container body 10 at the desired pressure, regardless of whether the user operates the rotary operating part 25 properly or not.

[0053] Furthermore, according to the two-liquid mixing container 1 of this embodiment, a ratchet mechanism 40 is provided between the outer peripheral surface of the tubular portion 21 and the inner peripheral surface of the rotation operating part 25, which operates to allow rotation of the rotation operating part 25 in the tightening direction relative to the tubular portion 21, but to prevent rotation of the rotation operating part 25 in the loosening direction relative to the tubular portion 21.Therefore, when rotating the rotation operating part 25 in the tightening direction relative to the tubular portion 21 to mix the second liquid L2 with the first liquid L1, the rotation operating part 25 is prevented from rotating in the loosening direction relative to the tubular portion 21, thereby improving the operability of the rotation operating part 25.

[0054] Furthermore, according to the two-liquid mixing container 1 of this embodiment, a protrusion 24e that protrudes upward is provided in a portion of the circumference along the thin-walled line portion 24a of the break valve 24b, and a thick portion 24f is provided in the diagonal portion of the thin-walled line portion 24a where the protrusion 24e is provided.Therefore, the pressing portion 28 abuts against the protrusion 24e first, and the thin-walled line portion 24a breaks sequentially from the portion where the protrusion 24e is provided, thereby ensuring that the break valve 24b can be opened reliably.

[0055] Furthermore, according to the two-liquid mixing container 1 of this embodiment, the cylindrical portion 21, the storage cylindrical portion 22, and the nozzle portion 23 are formed as a single unit, which makes it possible to easily mold the cylindrical portion 21, the storage cylindrical portion 22, and the nozzle portion 23 by injection molding of synthetic resin material, thereby reducing the cost of this two-liquid mixing container 1.

[0056] Furthermore, according to the two-liquid mixing container 1 of this embodiment, a pressurized cylinder section 27 is provided between the piston section 26 and the pressing section 28, which is positioned inside the second storage chamber R2 when the rotation operating section 25 moves downward a predetermined distance relative to the cylindrical section 21.This means that when the rotation operating section 25 moves downward a predetermined distance relative to the cylindrical section 21, the air inside the cylinder chamber R3 is further pressurized, and the second liquid L2 can be sprayed from the spray hole 23a at the desired pressure while reducing the downward movement stroke of the rotation operating section 25 relative to the cylindrical section 21.

[0057] The present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit and scope of the present invention.

[0058] For example, in the above embodiment, a pressing portion 28 is provided adjacent to the piston portion 16 and faces the break valve 24b with a predetermined gap therebetween, and when the rotation operating portion 25 moves downward a predetermined distance relative to the cylindrical portion 21, the pressing portion 28 presses the break valve 24b to break the thin-walled line portion 24a. However, the present invention is not limited to this, and a configuration may be adopted in which the pressing portion 28 is not provided, and when the rotation operating portion 25 moves downward a predetermined distance relative to the cylindrical portion 21 and the air inside the cylinder chamber R3 is increased to a predetermined pressure, the thin-walled line portion 24a is broken by the pressure, and the break valve 24b is opened.

[0059] Furthermore, in the above embodiment, the ratchet mechanism 40 is provided between the outer peripheral surface of the cylindrical portion 21 and the inner peripheral surface of the rotation operation portion 25, but the ratchet mechanism 40 may not be provided.

[0060] Furthermore, in the above embodiment, a protrusion 24e protruding upward is provided in a portion of the circumference along the thin-walled line portion 24a of the rupture valve 24b, and a thick-walled portion 24f is provided at the diagonal portion of the thin-walled line portion 24a where the protrusion 24e is provided, but it is also possible to configure the rupture valve 24b so that the protrusion 24e and the thick-walled portion 24f are not provided.

[0061] Furthermore, in the above embodiment, the cylindrical body portion 21, the cylindrical storage portion 22, and the nozzle portion 23 are configured to be integrally formed, but these may also be configured as an assembly type.

[0062] Furthermore, in the above embodiment, the pressurizing cylinder portion 27 is provided between the piston portion 26 and the pressing portion 28, and is placed inside the second storage chamber R2 when the rotation operation portion 25 moves downward a predetermined distance relative to the cylindrical portion 21. However, the pressurizing cylinder portion 27 may not be provided. In this case, the pressing portion 28 may be provided directly adjacent to the lower end of the piston portion 26. [Explanation of symbols]

[0063] 1 Two-component mixing container 10 Container body 11 Mouth 11a male thread 12 Shoulder 13 Torso 20 Caps 20A Fixing member 20B Movable member 21 Cylinder part 21a Fixed part 21b Cylinder section 21c female thread 21d Skirt section 21e Male thread 22 Storage cylinder 22a Flange-like part 23 Nozzle section 23a injection hole 23b Stepped part 24 Closure element 24a Thin line part 24b Break valve 24c flange-like part 24d Support part 24e protrusion 24f thick part 25 Rotation control unit 25a female thread 25b Rib 25c ceiling wall 26 Piston section 26a Support part 26b Seal body 26c Ventilation groove 27 Pressurized cylinder 28 Pressing part 28a Flange-like part 30 Jig 40 Ratchet mechanism 41 Upper end part 42 Locking claw 43 Locking protrusion O axis center R1 Storage Room 1 L1 1st liquid R2 Second storage room L2 2nd liquid R3 Cylinder chamber

Claims

1. a container body having a cylindrical mouth and a first storage chamber for storing a first liquid; A two-liquid mixing container including a second storage chamber for storing a second liquid to be mixed with the first liquid, and a cap attached to the opening, The cap is a cylindrical body portion including a fixing portion fixed to the mouth portion and a cylinder portion; a cylindrical storage portion provided adjacent to a lower end of the cylinder portion, the interior of which constitutes the second storage chamber; a nozzle portion provided in communication with a lower end of the cylindrical storage portion and including an injection hole that opens toward the inside of the container body; a blocking member provided between the second storage chamber and the injection hole, the blocking member including a rupture valve defined by a thin-walled line portion, and blocking a passage between the second storage chamber and the injection hole; a rotation operation unit that is attached to the outside of the cylindrical body portion by a screw connection and that is movable downward relative to the cylindrical body portion by rotating relative to the cylindrical body portion; a piston portion that is connected to the rotary operation portion, that is disposed inside the cylinder portion, that is filled with air inside the cylinder portion, and that defines a cylinder chamber that is connected to the second storage chamber, when the rotation operation part moves downward relative to the cylindrical part, the piston part moves downward together with the rotation operation part, so that the air inside the cylinder chamber is pressurized and the second liquid inside the second storage chamber is pressurized by the air, a pressing portion provided in series with the piston portion and facing the break valve above with a predetermined gap therebetween, the pressing portion being configured to press the break valve to break the thin-walled line portion when the rotation operating portion moves downward by a predetermined distance relative to the cylindrical portion, a protrusion that protrudes upward is provided at a portion of the rupture valve in a circumferential direction along the thin-walled line portion, A two-liquid mixing container, characterized in that a thick portion having a thickness greater than that of the thin line portion is provided at a diagonal corner of the portion where the protrusion is provided on the thin line portion.

2. 2. The two-liquid mixing container according to claim 1, wherein a ratchet mechanism is provided between the outer peripheral surface of the cylindrical portion and the inner peripheral surface of the rotation operating portion, the ratchet mechanism operating to allow rotation of the rotation operating portion in a tightening direction relative to the cylindrical portion and to prevent rotation of the rotation operating portion in a loosening direction relative to the cylindrical portion.

3. 2. The two-liquid mixing container according to claim 1, wherein the cylindrical body portion, the cylindrical storage portion, and the nozzle portion are integral with each other.

4. 2. The two-liquid mixing container according to claim 1, wherein a pressurizing cylindrical portion is provided below the piston portion and is disposed inside the second storage chamber when the rotation operating portion moves downward a predetermined distance relative to the cylindrical portion.

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