JPH021266Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a liquid storage container, and in particular, the invention relates to a liquid storage container, and in particular, the top opening of a cup-shaped container made of a thin metal plate for storing liquid is sealed by a flexible wall. , a rigid protrusion extending downward is provided at approximately the center of the wall, and by pushing the wall downward, the protrusion aligns the bottom wall of the container with the score line previously provided on the bottom wall. The present invention relates to a liquid storage container that is broken to open a portion surrounded by the score line.

A preferred embodiment of this type of container is a two-liquid storage container, in which case the container has the opening of the second container containing the second liquid sealed when not in use, and the bottom of the container as described above. By breaking the wall, both liquids are allowed to mix. Preferably, the container is a beverage storage container.

(Prior Art) A two-liquid storage container in which a score line is provided on the bottom wall of a metal container and the bottom wall is penetrated along the score is disclosed in Japanese Utility Model Application No. 55-7788. In this case, a partition plate with a score line is provided at one end of the can, and a push blade that breaks through the partition plate is integrally provided with the outer lid that closes the one end, but the shape of the score line etc. There is no description, and the document only states that the other end of the can can be opened using a normal method for opening the can. Furthermore, in this type of container, the score lines cannot be carved too deeply because the score lines are likely to break during transportation or the like if the score lines are carved too deeply. If the score line is too shallow, opening operation becomes difficult. Furthermore, when pushing down the pusher blade, if the pushing force is not applied in the correct direction, the force of the pusher blade will not work effectively on the score line, making it difficult to break.

In addition to the above-mentioned publications, various types of two-liquid storage containers have been proposed, but most of them are designed to pierce through a thin film of synthetic resin or metal.

(Problems to be Solved by the Invention) The conventional techniques described above require an extremely large force to break through the bottom wall, and it is desired to reduce this force.

(Means for Solving the Problems) According to the present invention, in the liquid storage container of the above-mentioned type, when the wall is pushed down, the tip portion of the protruding portion surrounded by the score line A liquid storage container is provided, which has a recess large enough to accommodate the tip of the protrusion at the contact point.

(Function) By providing such a recess, even if the direction in which the protrusion is pushed down is slightly downward, the tip of the protrusion is accommodated in the recess, so the inclination of the protrusion is corrected, and the inclination of the protrusion is corrected. Since the tip presses the concave portion correctly downward without slipping, the pressing force is concentrated on this portion, and therefore initial breakage along the score line is significantly likely to occur, and the pressing force can be reduced.

(Example) Fig. 1 is a front longitudinal cross-sectional view of an embodiment of the two-liquid storage container of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front longitudinal cross-sectional view of a cup-shaped cap before crimping, FIG. 4 is a plan view thereof, FIG. 5 is a partial vertical cross-sectional view showing the state when the intended opening portion is opened, and FIG. 6 is a vertical cross-sectional view showing the state in which the pot-shaped cap is removed.

In the embodiment of the present invention shown in FIGS. 1 to 6, 1
For example, the container body is made of glass and has a cup shape.
The opening has a beaded edge 1a, and the first liquid A
(For example, store mineral water, juice, etc.) 2 is a cap-shaped cap made of a thin metal plate such as an aluminum alloy, and a second liquid B is contained inside.
(For example, whisky, brandy, shochu, etc.) A cup-shaped part 3 that has a diameter that becomes smaller toward the bottom; a flange part 4 that extends diametrically outward from the upper edge of the cup-shaped part 3; It is integrally formed with a skirt part 5 hanging down from the periphery of the flange part 4 and a ring-shaped tab 6 extending from the lower end of the skirt part 5, and the tab-shaped part 3 is connected to the container body 1.
is inserted into the opening of the container body 1, and the lower end portion of the skirt portion 5 is bent (crimped) diametrically inward along the lower side of the beaded edge 1a using a crimper, thereby sealing the container body 1 with the tip-shaped cap 2. do.

In addition, in order to improve the sealing performance, the cap-shaped cap 2
A sealing material 7 is applied to the inner surfaces of the flange portion 4 and skirt portion 5.

The skirt portion 5 has two or more pairs of slits and/or score lines (not shown) extending upward from the lower end of the skirt so that the cap-shaped cap 2 can be easily removed from the container body 1 by pulling up the ring-shaped tab 6. ) has been applied.

This slit and/or score line is located near the center line of the cap which is perpendicular to the straight line connecting both sides of the extending portion of the ring tab 6 and the center of the ring tab 6 and the center of the cap. The number of slits and/or score lines may be three or more pairs in order to facilitate the removal of the cap-shaped cap 2.

The opening of the cap-shaped cap 2 is made of polyester,
The periphery of the top lid 8 has excellent flexibility and has a multi-layer structure including one or more layers of polyethylene or other resin or synthetic resin (preferably including a layer with excellent gas barrier properties), and the cap-shaped cap 2. The flange portion 4 and the like are sealed by known means such as heat sealing or adhesive bonding.

A protrusion 9 extending downward is provided in the center of the upper lid 8, and its tip is connected to the bottom wall 3a of the cup-like part 3.
It has reached the vicinity.

The protrusion 9 has a substantially truncated conical shape and has high structural rigidity.

In this example, it is molded integrally with the top lid, but it may be molded separately from the top lid and fitted or welded to the top lid, and the shape may also be other than a truncated cone shape.

The upper lid 4 is provided with a corrugated portion 4a so that it can be largely deformed when a pressing force is applied to move the protruding portion 9 downward.

As shown in FIG. 4, the bottom wall 3a is provided with an opening portion 12 partially 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. There is.

This score line 11 is a notch, that is, a thin portion that does not pass through.

13 is a planned opening portion 12 near the score line 11;
It is a recessed part with a depressed protrusion 9.
It has the role of receiving the tip of the protrusion 9 to prevent the protrusion 9 from shifting laterally, and effectively applying the downward force of the protrusion 9 for the initial breakage (first breakage) and subsequent breakage of the score line 11.

The shape and depth of the score line 11 can be determined as appropriate, but as shown in FIG. Preferably, also
The shape of the score line 11 may be such that it completely surrounds the planned opening portion 12, but in this case,
In order to prevent the planned opening portion 12 from falling into the container body 1, it is preferable to remove the portion that the protruding portion 9 touches from the center of the planned opening portion.

To assemble the two-component storage container, first, the container body 1
is filled with first liquid A.

In addition, when the first liquid A is mineral water, youth, etc., it is desirable to employ a hot filling method from the viewpoint of preventing deterioration of the liquid content and workability.

Next, insert the cap 3 of the cap 2 into the opening of the container body 1, and use a crimper to swipe the lower end of the skirt 5 diametrically inward along the lower side of the bead 1a. Fold the container body 1
to be sealed.

After that, the cap-shaped portion 3 of the cap-shaped cap 2
is filled with the second liquid B, and the upper lid 8 is placed over it with the protrusion 9 side facing down, and the peripheral edge of the upper lid 8 and the flange portion 4 of the cap-shaped cap 2 and/or the upper end of the cap-shaped portion 3 are The tip-shaped portion 3 is joined by heat sealing or adhesive bonding.
to be sealed.

In addition to the above-mentioned method, first, after filling the second liquid B into the cup-shaped part 3 of the cup-shaped cap 2, the cup-shaped part 3 is sealed with the upper lid 8, and then the container body 1
After filling the container with the first liquid A, inserting the cap 3 of the cap 2 into the opening of the container body 1, use a crimper to attach the lower end of the skirt 5 to the lower side of the bead 1a. It can also be manufactured by bending the container body 1 along the same line and sealing the container body 1 with a cup-shaped cap 2.

Although not shown, it is preferable to cover the top lid 8 with a cover plate on which the type of liquid content, opening method, trademark, etc. are printed, and to join it to the periphery of the top lid 8 at its periphery. . In particular, it is preferable to leave a space between the center portion of the top lid 8 and the cover plate from the viewpoint of preventing the score line 11 of the bottom portion 3a from breaking unexpectedly or due to mischief.

When using or drinking the liquid content, first remove the cover plate if there is one, and then move the protrusion 9 downward by pressing down on the center part of the top cover 8 with your finger, etc. A pressing force is applied to the recess 13 in the opening planned portion 12 provided at 3a. Then, the score line 11 near the concave portion 13 first breaks (initial break), and when the pressing operation is continued,
The vicinity of the initial rupture part is displaced downward, creating an inclined surface in this part, but since the tip of the protrusion 9 remains in the recess 13, the rupture part is displaced downward without slipping. A shearing force acts on the score line 11 portion, and it easily breaks.

When the planned opening part 12 opens, the second liquid B stored in the cup-like part 3 easily flows down from this opening and mixes with the first liquid A stored in the container body 1. .

After that, when the ring-shaped tab 6 is pulled toward you and then pulled upward, the score lines provided on both sides of the ring-shaped tab 6 first begin to break, and the break extends beyond the skirt portion 5 to the flange portion. 4 (at this time, if there is negative pressure inside the container body 1, air enters from outside and the negative pressure is released).
Then, the force that pulls the ring-shaped tab 6 upward acts in the direction of pulling the cap-shaped cap 2 upward from the container body 1, and the lower end of the skirt portion 5 that is tightly engaged is a part near the tab 6 in the circumferential direction. It moves upward and diametrically outward while following the lower side of the bead 1a, and at this time, the width of the slit is widened and the tight engagement between the skirt portion 5 and the bead 1a of the container body 1 is released. . In this example, the diameter of the cap-shaped portion decreases toward the bottom, and there is a gap between it and the inner wall of the main body 1 that allows for easy removal, so the cap-shaped cap 2 can be easily and completely removed from the container body 1 together with the top lid 8. .

Therefore, not only can the mixed liquid of liquid A and liquid B be poured into another container easily and completely, but also the contents can be directly drunk by attaching the mouth to the container body 1.

For example, if liquid A is mineral water and liquid B is whisky, it is very easy to mix whiskey with water, but if liquid A is lemon water and liquid B is shochu, it is extremely easy to mix shochu with lemon water and it is easy to open. Since this can be done easily and completely without using any special equipment, the container body 1 can be used as it is as a cup, and you can enjoy diluting whiskey with water or the like anywhere.

An example of preferred specific dimensions of the two-liquid storage container of the present invention is as follows.

The inner diameter of the glass container body is approximately 51.8 mm, outer diameter 60 mm,
Thickness of aluminum gold alloy cap
0.20mm, tip height approx. 27.6mm, outer diameter of the bottom of the tip approx. 43mm, diameter of the large diameter part of the planned opening 16
mm, the diameter of the small diameter part of the planned opening part is 6mm, the diameter of the recessed part in the planned opening part is 4.8mm, the depth of the recessed part is 1.7mm, the height from the top surface of the center part of the top cover to the top surface of the peripheral part (flange part) is 3.0mm, protrusion The length of the part is approximately 22.2 mm, the diameter of the lower end of the protruding part is 3.0 mm, and the distance between the lower end of the protruding part and the top surface of the recess in the planned opening part is 3.4 mm.

In the illustrated embodiment, the tap-shaped part 3 has a smaller diameter in a tapered shape toward the bottom, but if it has a removable gap between it and the inner wall of the container body 1, it can have a curved shape.
It may have a stepped shape or other appropriate shape.

(Effect of the invention) According to the invention, the tip of the rigid protrusion 9 provided in the opening portion 12 surrounded by the score line 11 and on the upper cover 8, that is, the wall when the wall is pushed down. Since the recess 13 for accommodating the tip of the protrusion 9 is provided at the point where the parts touch, there is no relative displacement and the pressing force is applied to the planned opening part 1.
2, the initial fracture along the score line 11 is extremely likely to occur, and the planned opening portion 12 opens sufficiently large. Therefore, only a small pressing force is required, and both liquids are sufficiently mixed.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view showing an embodiment of the two-liquid storage container according to the present invention, Fig. 2 is a top view, Fig. 3 is a sectional view of the cap-like cap, Fig. 4 is a bottom view, and Fig. 5 is a cap-shaped cap. FIG. 6 is a schematic diagram showing the breaking operation of the cap-shaped cap, and FIG. 6 is a schematic diagram showing the removal operation of the cap-shaped cap. 1: Container body, 2: Cap-shaped cap, 3: Cap-shaped part, 4: Flange part, 5: Skirt part,
6: Ring-shaped tab, 7: Sealing material, 8: Top lid (flexible wall), 9: Projection, 11: Score line, 12:
Scheduled opening portion, 13: recessed portion, A: first liquid, B:
Second liquid.

Claims (1)

[Claim for Utility Model Registration] The top opening of a pot-shaped container made of a thin metal plate for storing liquid is sealed by a flexible wall, and a rigid protrusion extending downward is provided approximately at the center of the wall. By pressing the wall downward, the protrusion breaks the score line previously provided on the bottom wall of the container and opens the area surrounded by the score line. In the liquid storage container, a size that can accommodate the tip of the protrusion in the area surrounded by the score line and in contact with the tip of the protrusion when pushing down the wall. A liquid storage container characterized by having a recessed portion.