JPS6181965A - Vessel for pressure liquid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to containers for pressurized liquids, and in particular to containers suitable for carbonated beverages such as beer, sparkling wine, and soft drinks.

(Prior Art) So-called bag-in-box containers are already widely known for use in still table wines.

Such containers generally consist of a generally impermeable bag (usually metal-coated polyester) placed inside a paper or similar box into which the wine is placed.

The bag is also equipped with a stopper to allow easy pouring of wine. Since such containers are made of flexible materials, compared to traditional containers such as glass bottles, pouring a liquid causes the bag to collapse by a corresponding volume, thus preventing oxygen from entering and oxidizing the liquid. It has the advantage of being possible. As the beverage oxidizes, it loses its taste and eventually spoils. Therefore, the bag-in
Box-style packaging allows products to stay fresh for long periods of time.

Additionally, bag-in-box containers have the advantage of being lighter than most conventional containers, making them suitable for transporting and storing large quantities of liquids. Moreover, since bag-in-box containers are inexpensive, they can be sold as disposable containers. Also, since the stopper is integrally provided, it is convenient to pour out the liquid inside the container, and the consumer does not have difficulty opening the container as in the case of bottles and cans.

It would be desirable to extend the use of bag-in-box containers to pressurized liquids, particularly carbonated beverages such as beer, sparkling wine, soft drinks, etc., so that the advantages described above can also be obtained with these liquids. However, when such a liquid is placed in a flexible bag inside a box-like casing with low rigidity, the casing bulges outward due to the pressure exerted by the liquid's gas. As a result, the entire container becomes unstable and tends to fall over, resulting in a problem that it becomes impossible to stack the containers and store or transport them.

OBJECTS OF THE INVENTION The present invention provides a bag-in-box type container containing a flexible bag within an outer casing, which specifically bulges or bulges outward when filled with pressurized liquid. The object of the present invention is to provide a container containing a flexible bag within an outer casing that is sufficiently rigid to be flexible.

(Structure of the Invention) In order to achieve the above object, the present invention provides (2) a pressurized liquid that is provided with a box-shaped casing that covers a flexible bag for containing a liquid, and a stopper is provided in the bag so that the liquid can be poured out. The container is characterized in that the flexible bag is located within a sleeve or tube.

If the sleeve or tube is made of a rigid or inelastic material, a horizontal stand having flanges extending towards the ends of the casing for transmitting pressure from the sleeve or tube to the ends of the casing. are provided at each end of the sleeve or tube.

In order to accurately position the bag within the casing, the outlet member or the base of the plug for connecting the plug to the bag can be engaged in a slot provided in a transverse stand located at one end of the sleeve or tube. preferable. in this case,
The stopper itself is also securely held in the proper pouring position within the casing.

If the sleeve or tube is made of elastic material, a stand is not required if the ends of the sleeve or tube are sealed. (One end of the sleeve or tube must be sealed around the proximal end of the protruding stopper for pouring out the liquid). However, in most cases one platform is provided for positioning the stopper as described above.

Near the stopper, the case has a removable part surrounded by perforations so that the stopper cannot be touched before purchase, and after purchase, the above part can be removed to easily operate the stopper. It is convenient to leave it there.

The bag itself is preferably formed of at least two layers of materials: an inner layer of polyethylene and an outer covering of nylon/aluminum/polyolefin laminate. When the outer coating is formed of the above-mentioned material, it is possible to effectively prevent carbon dioxide gas from escaping from the carbonated beverage inside the bag and preventing oxygen from entering the bag.

If more than one pedestal is provided, the pedestal may also be provided with further flanges or side walls to increase strength and facilitate pressure transfer from the sleeve or tube to the bag.

Next, the present invention will be explained in more detail by way of examples based on the drawings.

Embodiment In the embodiment shown, the container comprises an outer casing formed by a box 10. The box 10 is made of printed cardboard, for example, and has a height of about 30 cttr.
, the vertical and horizontal dimensions of the outer surface are each 18c#I. box 1
0 is provided with an end flap 11 for overlapping and a portion 12 surrounded by perforations 13. Perforation 13 is box 10
straddles the edge between one of the side walls 14 and one of the flaps 11 . Two spaced apart holes (not shown) are provided in the wall opposite side wall 14. These holes are for attaching a handle 28 formed from a plastic strip, the flared end of which is placed inside the box 10.

A tube 15 is provided within the box 10. tube 15
is made of spirally wound paper, the diameter of which is 1 box.
It is approximately the same as the inner dimension of 0.

The tube 15 is supported within the box 10 between horizontal stands 16,17. The platform 16 is an inverted plastic article with an upright flange or rim 18 that projects toward the end of the box 10 and fits snugly against the proximal end of the box 10. The other platform 17 is also generally dish-shaped and made of plastic and has the same length and width as the box 10.

The stand 17 is fitted onto the top of the tube 15 and the box 10
It has an upright edge flange or rim 19 towards the top end. The top end of the box 10 is formed by overlapping and fixing the flaps 11 in place. Platform 17
It additionally includes a plurality of flanges or lateral walls 20 projecting towards the top of the box 10, which act as reinforcements and serve to facilitate the transmission of pressure from the tube 15 to the top of the box 10. Approximately halfway down one edge of platform 17 is a slot 21 extending partially across one flange 19. This slot 21 is provided adjacent to the perforated portion 12 of the box 10.

After R, I will explain the most important points. A bag 22 is provided within the tube 15. The bag 22 is formed by fixing two inner sheets and two outer sheets together at a portion 23 near the periphery. The inner sheet is made of low volume density polyethylene and the outer sheet is made of a laminate of nylon/aluminum and low volume density polyethylene.

The bag 22 is provided with a short cylindrical outlet member 24 having an annular ridge 25 and a plug 26. The plug 26 has an annular ridge 27 at its proximal end and fits into the outlet member 24. The annular ridge 25 allows the outlet member 24 to be attached to the upper platform 17.
The slot 21 is engaged with the slot 21 of the As a result, the stopper 26 becomes the box 10.
The bag 22 is precisely positioned within the tube 15.

As is clear from the drawing, when assembling the container, box 10
Put the stand 16 in and then the tube 15. The bag 22 is then filled with a suitable carbonated beverage, such as beer, and the securely closed stopper 26 is inserted into the outlet member 24. Next, the outlet member 24 is inserted into the platform 17. These are placed inside the box 10, the bag 22 is placed inside the tube 15, and the stand 1
7 is seated on top of tube 15. Next flap 1
Close 1. As mentioned above, the part 1 surrounded by the perforation 13
2 covers the stopper 26, and can reliably prevent the contents of the box 10 from being exposed to the outside before sale.

If the purchaser wishes to pour out the carbonated beverage, he only has to tear off the portion 12 to expose the stopper 26, which is an easy task.

Note that when pouring out a beverage, the stopper 26 is directed downward.

The above container has the great advantage that, by providing the tube 15 and the bases 16 and 17, the sides of the box 10 do not bulge or bulge outward even when subjected to the pressure of the liquid in the bag 22. . The tube 15 changes the direction of this outward pressure longitudinally, and the platform 16 , 17 moves to transmit it to the end of the box 10 . Such containers are
For items that can hold up to 4.5 liters of liquid, 1
10-20 bonds per square inch (68,96-13
It was confirmed that it could withstand a pressure of 7.90 kpa).

In theory, the above configuration is an example and does not limit the scope of the present invention, and various modifications are possible.

In particular, the tube 15 need not be rigid or self-retaining, and may be configured to be collapsible so that it can be stored flat prior to assembly. Additionally, the tube 15 can be formed from a sleeve of elastic material to make the bag collapsible and to keep head space within the bag to a minimum. That is, the tube 15 is only required to surround the bag and transmit the pressure of the liquid in the longitudinal direction of the container. The rigid horizontal support 16,17 can be omitted if the elastic sleeve is sealed at both ends. However, it is desirable to retain a slotted side platform that engages the outlet member of the bag to allow accurate positioning of the stopper and bag.

Thermal theory, materials and dimensions of each member and portion may be other than those of the above embodiments. For example, the number of flanges or side walls other than the periphery of the platform can be varied in order to improve its strength. The material of the bag can also be changed.

The nylon/aluminum/polyethylene laminate is effective in preventing carbon dioxide from escaping from the internal liquid.
Although particularly effective, other materials may also be used or may be more suitable for pressurized liquids.

Furthermore, instead of the bag outlet member, the proximal end of the stopper may be engaged with the upper platform. However, these are not essential conditions in any case.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a container according to an embodiment of the present invention, and FIG. 2 is an enlarged vertical sectional view of the container of FIG. 1 in an assembled state. 10...box, 15...tube, 22...bag, 26...stopper

Claims (6)

[Claims] (1) In a pressurized liquid container that is equipped with a box-shaped casing that covers a flexible bag for containing liquid, and that is equipped with a stopper on the bag so that the liquid can be poured out, the flexible bag is placed inside a sleeve or tube. A pressurized liquid container characterized by being located at. (2) The sleeve or tube is made of a rigid or inelastic material and has flanges extending toward both ends of the casing to transmit pressure from the sleeve or tube to both ends of the casing. 2. A container according to claim 1, wherein the container is provided at each end of the sleeve or tube. (3) The outlet member or the base of the stopper for connecting the stopper to the bag engages in a slot provided in a transverse stand disposed at one end of the sleeve or tube. Container according to item 2. (4) The container according to any one of claims 1 to 3, wherein the casing is provided with a removable part surrounded by perforations in the vicinity of the stopper. (5) The bag is formed of at least two layers of material, an inner layer of polyethylene and an outer covering of nylon/aluminum/polyolefin laminate. container. (6) A container according to any one of claims 2 to 5, wherein one or both of the bases is provided with another flange or side wall to facilitate pressure transmission from the sleeve or tube to the casing. .