JPH0585416B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a two-liquid storage container, and more particularly to a two-liquid storage container in which the inner container housed in the container body can be removed from the container body together with the top lid. .

BACKGROUND ART Storing two types of liquids in a container in a state where they are separated from each other and mixing the two liquids during use is widely used in various industrial fields such as photographic developers and two-component adhesives. Particularly in the food industry, as palatability has diversified in recent years, they are often used to maintain aroma and flavor.

[Conventional technology]

The present applicants previously proposed the structure of a new two-liquid storage container in Utility Application No. 127790/1983. As schematically shown in FIG. 8, this container has an inner container 102 containing a second liquid B placed in an upper end opening 123 of a container body 101 containing a first liquid A, and a bead 101a.
It is supported and stored by caulking around the periphery, and a top cover 108 is further mounted on top of it. When drinking the contents of this container, the upper lid 108 is first pushed down and the protrusion 109 attached to the center breaks through the bottom wall 103a of the inner container 102, and the B liquid is mixed into the A liquid. , lift the tab 106, remove the inner container 102 along with the upper lid 108 from the container body 101, and drink the A/B mixture from the container body 101.

[Problem that the invention seeks to solve]

The container according to this application not only can be removed from the container body 101 together with the upper lid 108 and the inner container 102, but also the inner container 102 can be removed from the container body 102.
Since it can be removed without leaving any of the mixed liquid inside the container body 101, there is an advantage that it is possible to drink all of the mixed liquid without leaving it inside the container body 101.

However, once the container is opened, it is difficult to reseal it, and the liquid inside the container spills out when the container is tipped over, which is inconvenient when carrying the container while traveling.

The present invention aims to eliminate the drawbacks of the above-mentioned containers and provide a two-liquid storage container that can be resealed even after opening.

[Means and actions for solving problems]

An object of the present invention is to provide a bottomed container body which has an opening at the upper end and a screw thread on the upper peripheral wall, and which contains a first liquid and a bottomed container body which contains a second liquid. an inner container comprising: a flange portion extending outward from the entire circumference of the upper end of the storage portion; and a skirt portion extending downward from the entire circumference of the outer edge of the flange portion;
It consists of a top part, a skirt part extending downward from the entire outer edge of the top part longer than the skirt part of the inner container, and an upper lid having a protrusion part projecting inward at the lower end part of the skirt part, and The accommodating part of the inner container is inserted into the opening of the container body, the flange part of the inner container is placed on the upper end of the container body, and the protrusion of the upper lid skirt part and the thread of the container body are connected. A two-liquid storage container in which the container body and the inner container are sealed by screwing together, the lower end edge of the skirt portion of the inner container being separated from the outer peripheral wall of the container body and the upper lid This is achieved by a container characterized in that it has an outer diameter larger than the diameter of an imaginary circle formed by the inner end of the protrusion of the skirt part, and is located above the upper end of the protrusion of the upper lid skirt part. Ru.

The present invention will be explained in more detail below with reference to the drawings.

In the container of the present invention shown in FIG. 1, reference numeral 1 denotes a bottomed cylindrical container body made of glass, synthetic resin, etc., which has a beaded edge 1a at an opening 23, and contains a first liquid A.
(e.g. mineral water, youth, etc.). 2 is a bottomed inner container made of a thin metal plate made of aluminum alloy, tinplate, stain-free steel, etc., synthetic resin, or a laminated material thereof, and contains the second liquid B (e.g., whiskey, brandy, shochu, etc.) A cup-shaped liquid storage portion 3 that tapers downwardly, a flange portion 4 extending diametrically outward from the entire periphery of the upper end of the storage portion 3, and a flange portion 4 extending from the periphery of the flange portion 4. It consists of a skirt portion 5 extending downward. The accommodating part 3 is inserted into the opening 23 of the container body 1, the flange part 4 is placed on the upper end 24 of the container body 1, and the middle part of the skirt part 5 is crimped along the lower surface of the bead 1a with a crimper or the like. By bending inward (the skirt portion may be formed in this shape in advance), the container body 1 is sealed between the accommodating portion 3 and the flange portion 4. In order to improve sealing performance, it is desirable that a suitable sealing material 7 be installed between the flange portion 4 of the inner container and the upper end surface of the container body 1.

Note that instead of the sealing material 7, it is also possible to use an adhesive that does not adversely affect the aroma of the contents and can be easily unsealed (peeled off) when the container body 1 is opened.

As shown in FIG. 2, the skirt portion 5 has a plurality of slits 18 extending upward from the lower end of the skirt.
is preferably provided.

As shown in FIGS. 1 and 4, this skirt portion 5 has a lower end edge 5a that is separated from the outer circumferential wall of the container body 1 and protrudes outward, but since it is provided with the slit 18, external forces , it can easily be elastically deformed in the direction of arrow X (FIG. 4).

The opening of the inner container 2 is connected to the flange portion 4 of the inner container 2 by an annular sealing material 21 provided on the inner surface of the top 25 of the upper lid 8, which has excellent flexibility and is made of a thin metal plate such as aluminum alloy, tinplate, or stain-free steel. It is sealed by bringing it into close contact with the

A protrusion 9 extending downward is provided at the center of the upper lid 8, and its tip reaches near the bottom wall 3a of the accommodating portion 3.

The protrusion 9 is preferably made of synthetic resin material,
It needs to be approximately conical and have high structural rigidity.

The upper cover 8 is provided with a wave-shaped ring so that it can be largely deformed when a pressing force is applied to move the protrusion 9 downward.

As shown in FIG. 3, the bottom wall 3a is provided with a planned opening portion 12 surrounded by a score line 11 so that the bottom wall 3a is easily broken and an opening is formed when the protruding portion 9 is pressed down. be. This score line 11 is a notch, that is, a thin portion that does not pass through.

Reference numeral 13 denotes a recess provided inside the planned opening portion 12, which securely receives the tip of the pushed-down protrusion 9, prevents lateral displacement, and effectively breaks the score line.

As shown in FIG. 4, the upper lid 8 has a top portion 25
It has a skirt portion 8a whose outer peripheral edge extends beyond the flange portion 4 of the inner container 2, extends downward from the outer peripheral edge, and forms a side wall that covers the upper outer peripheral wall 1b of the container body 1. As shown in FIG.
A suitable number of protrusions 8 are bent deeply inward.
It forms b.

As shown in FIG. 4, a container body 1 and an inner container 2
The diameter d ₁ of the virtual circle formed by the inner ends of the protrusions 8b, 8b, 8b when sealed must be smaller than the outer diameter d ₂ of the lower edge 5a of the skirt portion of the inner container, Furthermore, the length h ₁ from the upper end of the skirt portion 8a to the protrusion 8b needs to be longer than the length h ₂ of the skirt portion 5 of the inner container 2 (strictly speaking, the lower end edge 5a It must be located above the upper end of the protrusion 8b).

As shown in FIG. 6, the upper outer peripheral wall 1 of the container body
b is provided with a spiral thread 20.
The threads 20 are a plurality of threads arranged discontinuously, and the distance between the starting ends of the adjacent threads 20, 20 is equal to the distance between the centers of the adjacent protrusions 8b, 8b of the skirt portion 8a of the upper lid. corresponds to the interval.
The height position at which this screw thread 20 is installed is such that when the upper lid 8 is mounted on the container body 1 from above the inner container 2 inserted and placed on the container body 1 and rotated, the protruding portion 8b is arranged to engage the lower surface of the thread 20 to produce a threaded effect.

In addition, the container main body 1 may be made of ceramic or metal in addition to those made of the exemplified materials. Further, it is preferable that a protective coating is applied to the inner surface of the metal container main body 1, the inner and outer surfaces of the inner metal container 2, and the inner surface of the metal top lid 8.

An example of assembling this two-liquid inner container will be described below.

First, the first liquid A (for example, mineral water) is hot-filled into the container body 1, and then the accommodating part 3 of the inner container is inserted into the opening 23 of the container body, and the flange part 4 is inserted onto the upper end 24. After being placed on the container body 1, the skirt portion 5 is bent inward using a crimper along the lower surface of the bead 1a to seal the opening 23 of the container body 1. Thereafter, the container body 1 is turned over, the outer surface of the inner container 2 is sterilized by the heat of the first liquid A, and after cooling, the container body 1 is stood upright and the second liquid is placed inside the liquid storage part 3 of the inner container. Next, the upper lid 8 is placed over the opening 23 of the container body from above the inner container 2 with the tip side of the protrusion 9 facing down, and as seen from above, By rotating the top lid 8 in the same direction as the clock hands, the protrusion 8b of the skirt portion and the thread 20 of the container body are screwed together, and finally the annular sealing material 21 on the inner surface of the top 25 of the top lid and the contents are screwed together. The inner container 2 is sealed by bringing the upper surface of the flange portion 4 of the container into pressure contact.

When mounting the upper lid 8, the protrusion 8b of the upper lid 8 is
It comes into contact with the lower edge 5a of the skirt portion 5 of the inner container 2 having a larger diameter than this, elastically deforms it in the direction of the arrow X in FIG. If , the inner container 2
Even if it is manufactured from a thin metal plate, its deformation can be easily performed. Next, the upper cover 8 is rotated a little as necessary to allow the protrusion 8b to pass downward between the screw threads 20.

Furthermore, when the upper lid 8 is rotated as described above, the projection 8b of the upper lid 8 continues to descend while contacting the lower surface of the thread 20, but the annular sealing material 21 provided on the inner surface of the top 25 of the upper lid 8 and the inner container The lowering stops when the upper surface of the flange portion 4 of the inner container 2 comes into pressure contact with the upper surface of the flange portion 4 of the inner container 2, and at this time, a seal is obtained between the inner container 2 and the upper lid 8.

The two-liquid storage container is now assembled.

In this example, the first liquid A was filled by the hot filling method, but the container body and the inner container were sterilized in advance, and after sterilization, the cooled liquid was filled and sealed in a sterile atmosphere. When using aseptic filling method,
In the case of post-sterilization and as the first liquid A, substances that do not require sterilization (for example, whisky, brandy,
gin, etc.), a cold filling method can be used.

Also, although not shown, it prevents consumers from pushing the top lid of the two-liquid storage container downward on the store display shelf and breaking the bottom wall of the inner container (mischief prevention).
Therefore, it is desirable to take appropriate measures such as covering the entire top lid with a shrink film or covering the top lid with a cover plate that covers at least the center portion of the top lid before shipping.

When drinking the liquid content, if the upper lid 8 is covered with a shrink film opening, first remove it, and then push down the center of the upper lid 8 with your finger or the like to move the protrusion 9 downward. The inner container 2 is moved to break the bottom wall 3a.

By this operation, the second liquid B contained in the inner container 2 flows down into the container body 1 and mixes with the first liquid A contained therein.

If you rotate the top cover in the opposite direction to the above-mentioned direction,
The threaded engagement between the protrusion 8b of the upper lid and the thread 20 of the container body is released, and when the upper lid 8 is then pulled up, the protrusion 8b catches on the lower end edge 5a of the skirt portion of the inner container, and the fourth Since the elastic deformation is performed in the direction opposite to the arrow
removed along with the

You drink the mixed liquid directly from the container body 1, but if you want to store it again without drinking it all or change the drinking location, you can remove the upper lid 8 while holding the inner container 2 so that the accommodating part 3 of the inner container is It is placed over the container body 1 so as to be inserted into the opening 23 of the container body, and rotated in the same direction as the clock hands to screw the protrusion 8b and the thread 20 together to reseal the container.

As a result, close engagement is formed and maintained between the lower surface of the flange portion 4 of the inner container and the upper end 24 of the container body, and between the lower surface of the top portion 25 of the upper lid and the upper surface of the flange portion 4. The inner container will not leak even if it is knocked over or turned upside down. Furthermore, when resealing the package, the same operation as when opening the package is required.

Furthermore, when the top lid 8 is removed from the container body 1, the entire inner container 2 is also removed from the container body 1, which not only makes it easy to drink the inner container directly from the container body 1, but also allows the liquid content to be absorbed into the container body 1. You can drink it all without leaving any residue.

For example, liquid A is mineral water,
If liquid B is whisky, you can easily make shochu mixed with lemon water, and if liquid A is lemon water and liquid B is shochu, you can easily make shochu mixed with lemon water, and the container itself can be used as a pot and can be re-stored. It is extremely convenient for portable use.

In addition, in the two-liquid storage container of the type shown in FIG. 8, the flange portion 4 of the inner container 102 and the upper lid 1 are
08, it is necessary to bond with a strong adhesive 130 whose adhesive strength does not deteriorate over time, and when such an adhesive is used,
The delicate aroma of the liquid may be lost due to the volatile components of the solvent contained therein (especially when liquid B is whiskey or brandy, and the adhesive is subjected to heat treatment). However, in the two-component storage container of the present invention, it is possible to completely seal the inner container and the top lid without using adhesive, so it is effective for retaining the scent of the inner container. It is valid.

In the above description, the bottom wall 3a of the inner container was provided with the planned opening portion 12 surrounded by the score line 11. However, if the bottom wall 3a is made of a thin and breakable material, , the score line 11 may be omitted.

In addition, the upper cover 8 excluding the protrusion 9 is not only molded from an integral thin metal plate, but also has a disk-shaped central portion 26 made of synthetic resin or a thin metal plate, as shown in FIG. The annular peripheral portion 28 consisting of an annular top portion 27 in contact with the outer peripheral portion 26a of the central portion 26 and a skirt portion 8a extending downward from the annular top portion 27 is molded from a metal plate or hard synthetic resin. It may be composed of two parts.

Furthermore, the central portion 26 and the annular peripheral portion 28 may be integrally molded from synthetic resin. When at least the central portion is molded from synthetic resin, it may be integrally molded with the protrusion.

In addition, the inner container 2 is molded from a single material of synthetic resin such as polyester, polyethylene, polypropylene, a multilayer structure including a synthetic resin layer with excellent gas barrier properties, or a multilayer structure of a metal foil layer and a synthetic resin layer. In this case, if the bottom wall 3a is thin, the protrusion 9 of the top lid 8 may be omitted since the bottom wall 3a can be broken with the tip of a needle or knife.

Furthermore, in the container body 1 described above, the bead 1a is used to maintain the seal with the inner container 2 by mechanical engagement between the skirt portion 5 of the inner container 2 and the upper outer circumferential wall of the container body 1. However, since it is sufficient to maintain this engagement until the top lid 8 is screwed onto the container body, an adhesive that maintains strong adhesive force for only a short period of time can be applied to the container without adversely affecting the aroma of the liquid inside. By interposing it between the upper end 24 of the main body and the lower surface of the flange portion 4 of the inner container, it is possible to use a container main body 1 without a beaded edge 1a, and there is no need to caulk the skirt portion 5 of the inner container.

〔Example〕

Example 1 As shown in FIG. 6, the container body 1 is a bottomed cylindrical container made of glass and has a thread 20 on the upper outer peripheral wall.

The inner container 2 is made of aluminum alloy thin plate, and the second
As shown in the figures and FIG. 3, a cup-shaped housing part 3, a flange part 4 extending outward from the outer periphery of its upper end, and a flange part 4 that hangs down a short distance from the entire outer periphery of the flange part 3 and then diagonally outward. The skirt portion 5 is provided with a number of slits 18 extending upward from the lower end, and the bottom wall 3
In a, a planned opening portion 12 surrounded by a score line 11 is shown.
and a recess 13 is provided inside thereof.

The inner container 2 is coated with a vinyl organosol paint on both its inner and outer surfaces, and a polyester resin sealant 7 is coated on the lower surface of the flange portion 4.

The top lid 8 is made of tin plate, and as shown in FIGS. 1 and 5, a circular top portion 25 having a wave-shaped ring and a base portion of a protruding portion 9 made of polyester resin that is separately injection molded are fitted into the top lid 8. The fitting part 29, which extends downward from the entire outer edge of the top part 25 and has a longer length than the skirt part 5 of the inner container, and the lower end thereof are inwardly The inner surface is coated with a vinyl organosol paint and the outer surface is coated with a vinyl chloride-vinyl acetate copolymer paint. A polyester resin sealing material 21 is applied in an annular manner.

After filling this container body with mineral water heated to approximately 95°C, the accommodating portion 3 of the inner container described above is inserted into the opening 23 of the container body, and the flange portion 4 is placed on the upper end 24 of the container body. In this manner, the opening 23 of the container body was sealed, and the skirt portion 5 was bent inward using a crimper along the lower surface of the beaded edge 1a of the container body, thereby sealing the opening 23 of the container body.

Next, the container body 1 is inverted, held for about 1 minute, and then cooled with cold water to lower the liquid temperature to 30 to 40°C. After the container body 1 is stood upright, the storage part 3 of the inner container is filled with whiskey.

Then, when the above-mentioned upper lid 8 is placed over the container body 1 and the inner container 2 with the tip side of the protrusion 9 facing down and rotated in the direction of rotation of the clock hands, the upper lid protrusion 8b and the container body are rotated. The threads 20 begin to screw together, and finally the top 25 of the upper lid and the flange 4 of the inner container
were brought into pressure contact through the sealing material 21, and the inner container 2 was sealed.

In this example, since a wave-shaped ring is provided on the top part 25 of the upper lid, the protruding part 9 can be pushed down even with a relatively small force, and the bottom wall 3a of the inner container facing the tip of the protruding part 9 can be pushed down. Since the opening portion 12 is formed by providing the recess 13 and the score line 11 surrounding the recess 13, the bottom wall 3a can be easily and reliably broken.

Furthermore, by simply rotating and lifting the upper lid 8 in the opposite direction to that used when sealing, the lower edge 5 of the skirt portion of the inner container can be opened.
a indicates three protrusions 8b and 8 on the skirt portion of the upper lid.
b, 8b, the inner container 2 can also be removed from the container body 1 together with the upper lid 8.

Therefore, you can drink whiskey with water directly from the container body 1, and if there is any leftover drink, place the top lid 8 holding the inner container 2 over the opening 23 of the container body and then rotate it. The protrusion 8b and the thread 20 will be screwed together just by
Can be easily resealed.

Moreover, since the inner container 2 is completely removed from the container body 1, the inner container does not get in the way when drinking, and moreover, the liquid inside the container body 1 can be drunk without leaving any residue.

Example 2 In this example, the container body 1 and the inner container 2 used in Example 1 were used, and only the upper lid 8 had a shape as shown in FIG. 7.

That is, a disk-shaped center portion 26 having a fitting portion 29 at the center is pressure-molded from a polyester resin sheet, and a protruding portion made of polyester resin is separately injection-molded into the cavity of the fitting portion 29 in the center portion. 9 is inserted and locked, and on the other hand, from a tin plate coated with vinyl chloride-vinyl acetate copolymer paint on both the inside and outside, there is an annular top part 27, a skirt part 8a extending downward from it, and a number of its lower end parts. An annular peripheral portion 28 is formed by bending the portion inward and protruding inwardly, and an annular top portion 27 thereof is formed.
and the outer circumferential portion 26a of the central portion were joined using a polyester resin adhesive to complete the upper lid 8.

Then, in the same procedure as in Example 1, the container body 1 is hot filled with mineral water, and the opening 2 is filled with mineral water.
3 is sealed in the inner container 2, the container body 1 is inverted, the inner container 2 is sterilized and cooled with water, and then the container body 1 is stood upright, the inner container 2 is filled with whiskey, and then the inner container 2 is filled with whiskey. As shown in FIG. 7, the assembled top lid 8 is placed over the inner container 2 and the container body 1, and the top lid 8 is rotated in the same direction as the clock hands to screw the protrusion 8b and the thread 20 together. The inner container 3 was sealed by holding the outer circumferential portion 26a of the central portion 26 between the annular top portion 27 of the annular peripheral portion 28 and the flange portion 4 of the inner container 2.

In this example, since the center portion 26 of the upper lid 8 is molded from a polyester resin with excellent flexibility, less force is required to push down the protrusion 9, and therefore the inner container is more compact than in the first embodiment. The bottom wall 3a of No. 2 was easily broken.

On the other hand, since the annular peripheral portion 28 of the top lid 8 is formed of a metal plate, the protrusion 8b and the thread 2 of the container body 1
0 can be firmly screwed into the container, and therefore, as in the embodiment, the sealing performance of the container can be maintained reliably, and opening (including resealing) and resealing are also easy.

〔Effect of the invention〕

As described in detail above, according to the two-component storage container of the present invention, the inner surface of the upper lid, which is a sealing surface, is connected to the inner surface of the upper lid by the threaded engagement between the protrusion provided on the upper lid and the thread provided on the container body. Close contact can be made between the upper surface of the flange of the inner container and between the lower surface of the flange of the inner container and the upper end surface of the container body, ensuring that the sealing performance of the entire container is maintained. Since it can be resealed easily and reliably after use, it is possible to reliably preserve the liquid content, making it particularly convenient to carry when traveling.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the container of the present invention. 2 is a perspective view of the cup of FIG. 1; FIG. FIG. 3 is a plan view of the cup. FIG. 4 is an enlarged view of the engaging portion of the container of FIG. 1. FIG. 5 is a perspective view of the top cover of FIG. 1. FIG. 6 is a perspective view of the container body of FIG. 1. FIG. 7 is an enlarged sectional view of a main part of another embodiment of the present invention. FIG. 8 is a side sectional view of a container according to the prior art. 1,101...Container body, 2,102...Inner container,
3... Accommodation part, 4, 104... Flange part, 5... Skirt part of inner container, 5a... Lower edge of skirt part of inner container, 8, 108... Upper lid, 8a... Skirt part of upper lid, 8b... Projection part, 18 ... slit, 20... thread, 23,123... opening, 24... upper end of container body, 25... top, 26... central portion, 26a... outer peripheral portion of central portion, 27... annular top, 28... annular peripheral edge.

Claims (1)

[Claims] 1. A bottomed container body having an opening at the upper end and a screw thread on the upper outer peripheral wall and containing a first liquid; and a bottomed container body containing a second liquid. an inner container comprising a storage portion, a flange portion extending outward from the entire circumference of the upper end of the storage portion, and a skirt portion extending downward from the entire circumference of the outer edge of the flange portion; It consists of a skirt portion extending downward from the periphery for a longer length than the skirt portion of the inner container, and an upper lid having a protrusion projecting inward at the lower end portion of the skirt portion, and the upper lid is provided with a projection portion projecting inwardly from the lower end portion of the skirt portion, and the housing portion of the inner container is By inserting the inner container into the opening of the container body, placing the flange portion of the inner container on the upper end of the container body, and screwing together the protrusion of the upper lid skirt portion and the thread of the container body. A two-liquid storage container in which the container body and the inner container are sealed, wherein a lower edge of the skirt portion of the inner container is separated from an outer circumferential wall of the container body, and an inner end of the protrusion of the upper lid skirt portion. 1. A container having an outer diameter larger than the diameter of an imaginary circle formed by the container, and being located above the upper end of the protrusion of the upper lid skirt. 2. The container according to claim 1, wherein the skirt portion of the inner container includes a slit extending vertically. 3. The container according to claims 1 and 2, wherein both the inner container and the upper lid are made of metal. 4. The upper lid includes a disc-shaped central portion having a diameter larger than the inner diameter of the flange portion of the inner container, an annular top portion, a skirt portion, and a protrusion portion of a size that can be placed on the outer peripheral portion of the central portion. 3. A container according to claims 1 to 2, comprising an annular peripheral edge. 5. The container according to claim 4, wherein the center portion of the top lid is made of synthetic resin, and the annular peripheral portion of the top lid is made of metal.