KR840001322B1 - Container made of thin pliable synthetic material - Google Patents

Abstract

This manufactured container is made of thin, pliable, synthetic material. It has a base made of a thin sheet of pliable synthetic material and two side walls. Along the container's base, there is a folded edge. Between the base and two side walls, there is a common vacancy, which can be filled by liquid and pressed gas. Once filled the container can becom a closed pocket. The pocket. can expand and contract to a certain size and distribution, and is distributed by a continuous attached line to two adjacent edges.

Description

Containers made of thin, flexible synthetics

1, 4, 7, 8, 9, 11 and 13 are schematic front views illustrating various forms of a first preferred type container according to the present invention.

2, 5, 10, 12 and 14 respectively show line II-II in FIG. 1, line VV in FIG. 4, line XX in FIG. 9, line XII-XII in FIG. 11 and line XIV-XIV in FIG. Shown according to the section.

3 and 6 illustrate, without waste, the use of strips of thin, flexible synthetic material folded around their longitudinal axis to form two overlapping portions in the continuous manufacture of the containers of FIGS. 1 and 4, respectively. One drawing.

FIG. 15 is a perspective view schematically showing another embodiment of a second preferred form of a container according to the present invention made of thin, flexible composite material containing mineral water;

FIG. 16 is a perspective view schematically showing one embodiment of a second preferred form of a container according to the present invention made from thin, flexible composite material containing mineral water;

17 is a front view of another embodiment of a container according to the present invention.

18, 19, 20, 21 and 22 are cross-sectional views taken along line A-A of FIG. 17 of various embodiments of a solid member for securing the handle.

23A and 23B illustrate a method of making the handle of FIG. 22;

The present invention relates to a container made of thin, flexible synthetic material.

Containers made of thin, flexible composites have already been produced, especially for holding liquids, and generally known as sealed containers containing a certain amount of liquid (shampoo, javelin, etc.), which are generally thin and long in shape. (sachet) ”.

Made from thin, flexible composites, these containers are typically used to contain a certain amount of liquid intended to be used only once. Therefore, its capacity rarely exceeds tens of cm 3, so this kind of sachet can be quickly emptied quickly, for example, through a hole made by drilling the wall, and handling is not difficult.

However, this is not the case for containers having a capacity of 1/2 liter or more, the contents of which are mineral water that needs to be used several times in succession, for example. In this case, the container, once made of a partially open flexible material, is not strong enough to be supported by its base until the next use. Containers of this type of high-capacity, flexible material are deformed as they are emptied, making it very difficult to even empty them at once, and even if you hold the container with both hands, it is very difficult to pour it correctly into another container with a solid wall, such as one or more glasses. it's difficult.

According to the present invention, a container made of a thin and flexible composite material having a relatively large capacity, such as a capacity of 1/2 L or more, but having sufficient residual rigidity during the emptying process, can be eliminated.

The present invention provides a container made of a thin, flexible composite, consisting of a main cavity and at least one closed pocket that is not in communication with the main cavity, the pocket being somewhat rigid, especially when the main cavity is empty. To show the size and position.

The pocket contains liquid or pressurized gas. If it is a liquid, the liquid does not have to be the same or the same as that contained in the main cavity. The advantage of using pressurized gas rather than liquid in the pocket is that it has been found that users are reluctant to use the liquid contained in the handle of the container because they are not convinced that it is the same beverage liquid contained in the main cavity.

The main cavity of the container may be open but preferably closed. Thus, this type of closed container according to the invention with a capacity of 1/2 l or even 1 l is particularly convenient for containing mineral water in an economical way.

The thin, flexible composite that forms the base and wall of the container of the present invention may be formed as a uniform single layer of a suitable synthetic material, or as several layers of the same flexible composite or several very thin layers of several different flexible composites and these different The layers are adhered to each other, and by the last described form a complete hermetic container can be made to ensure complete conditions for the preservation of the liquid contained in the container.

In one preferred form of the structure of the container of the present invention, the sealed pocket is adapted to form a kind of handle that facilitates handling of the container.

In one preferred form of the structure of the container according to the invention the container consists of a sidewall and a base formed of a thin sheet of one or more flexible synthetic materials bonded along the overlapping edges, the sealed pocket being two overlapping of the sidewalls. It is separated from the main cavity by a continuous line of glue that interconnects the sites.

This configuration of the container is particularly convenient because it is possible to use a manufacturing method which is particularly simple, quick, economical and easily automated for producing a container containing a similar liquid in a main cavity and a pocket in which both are sealed. Thus, a container of this type is made by gluing an open bag of thin, flexible synthetic material approximately the same size as the container to be manufactured, filling the bag with a predetermined amount of liquid, and then gluing the bag. And forming a separating line between the main cavity of the container and the sealing pocket.

A container made of a thin, flexible composite according to the present invention, each containing a similar liquid in a closed main cavity and pocket, has a bag open at the end of a thin strip of flexible composite that is folded into two overlapping portions along the longitudinal axis. After making, and then filling the bag, it can be manufactured in a continuous and particularly automated manner, creating a seal and separation line that separates the filled and sealed bag from the rest of the strip.

Another preferred form of the structure of the container according to the invention consists of at least two side walls and a bottom made up of at least one thin flexible composite material in which only the surfaces appearing inside the container can be heat bonded and the overlapping edges glued together and The side walls are also bonded to each other along a line arranged to divide the interior of the container into a main cavity containing liquid and a smaller capacity sealed pocket filled with pressurized gas to reinforce the container, the bottom over the entire length It is formed of two V-shaped pleats extending parallel to the side wall and the ends of the pleats are closed by adhesion.

Thus, this second preferred form may not, for example, fill a closed pocket which acts as a handle with the same liquid as being filled in the main cavity.

In a preferred embodiment of the second aspect of the present invention, the material of the bottom and two sidewalls of the container uses a composite composite which is heat-adhesive only on the surfaces appearing inside the container. It is known that there is a complex composite of this kind which is quite durable against the penetration of atmospheric gases, which is quite useful for the preservation of beverages.

This second type of containers is particularly advantageous in that it is easy to manufacture a large number of identical containers in rows quickly and fully automatically.

According to another embodiment of the present invention, the container can be supported in a more stable manner if the two V-shaped corrugations are reinforced by adhesion extending along the entire length of the corresponding corrugation.

As in the first embodiment of the present invention, this second embodiment can also be produced in the form of rows of identical containers interconnected as described above.

According to yet another embodiment of the invention, the rows of containers are connected together along the bonded edges of the sidewalls of the containers by narrow joints of cuttable composite material, wherein at least one of the rows of containers is a rigid end It is similarly connected to the handle.

Each row contains the same liquid and is provided with handles only at the row end for two or three vessel rows and at each end for a large number of vessel rows, for example 2-10 closed vessels. Is particularly convenient for the sale of beverages such as mineral water. Especially in the case of the sale of beverages, each row contains 1 liter of mineral water and each row has handles at both ends, which can be transported with one hand. It is particularly convenient to manufacture with.

In a preferred form of the row of containers, each end handle consists of at least one rigid plate or one or more closed pockets of flexible composite material containing pressurized gas, such as slightly compressed air. All the vessels and the end handle (s) W in the row are made of strips of flexible synthetic material that are folded in a shape, which strips are glued and, if necessary, cut to desired lengths. This arrangement allows a large number of rows of vessels to be produced continuously and automatically and quickly.

Another improvement of the present invention is that the reinforcing means is provided, which becomes a solid member. The solid member used may be, for example, cardboard, wood, hard synthetic material or any other equivalent.

According to a preferred embodiment of the present invention, the solid member is composed of an expandable synthetic material which is injected into the second cavity in liquid form, cooled by the ambient temperature and solidified.

It is desirable to select a material whose expansion temperature is much lower than the degradation temperature of the thin film constituting the vessel.

Thus, a light, hard and undeformed handle can be obtained that absorbs the punching impact without fear of leakage after cooling at ambient temperature.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings.

The bases 1 and 2, each of which are schematically shown in Figs. 1 and 2 and 4 and 5, respectively, are folded in two and formed from a thin sheet of the same flexible synthetic material which is bonded along overlapping edges 3a and 3b. It has side walls 2a and 2b.

The two overlapping portions of the side walls 2a and 2b of the container are connected by a continuous bond line 4 positioned to divide the interior of the container into a main cavity A and a sealed pocket B which are not in communication with each other. The overlapping edges of the top of the folded sheet necessarily adhere to each other at site 5B (first and fourth degrees) to completely close the pocket B containing the fully filled liquid.

In one embodiment, the overlapping edges of the top of the folded sheet are not welded at the site 5A so that the main cavity A of the container is opened to fill with some liquid. When the liquid reaches a high level at the bottom of the main cavity A, the stiffness sufficient for the container to be supported at the bottom of the container on a horizontal plane without significantly deforming the container with the liquid contained in the sealed pocket B. To give. When the main cavity (A) is generally fully filled, the liquid can be dispensed partly in succession, and during such operations the rigidity and stability of the container is mainly in the form of a closure pocket (B), especially in the form of the structure shown in FIG. It is secured by the stiffness imparted by the liquid contained in it. In the embodiment described above, the sealed pocket, which is always filled with liquid, can be used as a kind of handle for carrying the container or following the shape from the container in the structures shown in FIGS.

In another preferred embodiment, as indicated by the containers shown in FIGS. 1 and 4, the main cavity A is likewise sealed pocket B because the upper overlapping edges of the folded sheet are also bonded at the site 5A. It is filled with a liquid similar to the liquid contained in it and sealed. For example, the upper left corner of the container may be cut along the dashed line (C) and then the container may be poured from the part (B) to pour the liquid contained in the main cavity (A), the liquid being used several times in succession without excessive deformation of the container. This is because there is a pocket B in which the liquid is contained, which gives the container rigidity.

The dashed lines Da and Db in Figs. 1 and 4 also show that the two edges of the bottom of the container may be cut, and the watertightness of the container is maintained by the adhesive line at that part.

3 and 6 are containers as shown in FIGS. 1 and 4 by cutting thin, flexible composites folded along the longitudinal axis 9 without actually wasting the strip 8 to form two overlapping portions. Illustrate that it can be prepared.

The structural form of the container shown in FIGS. 7 and 8 is the shape and size of the sealed pocket B and the adhesive line separating the pocket from the main cavity A of the container as shown in FIGS. 4) Only different. The shape in the horizontal section is consistent with that shown in FIG.

In the form of the structure shown in Figs. 9 and 10, the dividing line 4 separates the triangular sealed pocket B in a V-shape to form a handle which makes the container particularly easy to hold. In another form of construction, not shown, the elongated shaped closure pocket is separated from the main cavity eastern portion of the container by an opening large enough to enter the hand to form a handle partially separated from the container.

The vessels shown schematically in FIGS. 11 and 12 are made mainly by one sheet of thin, flexible composite material which is folded into a cylindrical shape shown in cross section in FIG. 12, the bond lines 4a, 4b and 5 described above. It forms in one cylindrical shape the main cavity A and two side pockets Ba and Bb which are not in communication with the main cavity A. Both ends of the cylindrical container are closed by sheets of two different thin flexible polymers 1a and 1b, each of which edges are bonded to the corresponding edges of the sheets 2a-2b-2c. The main cavity A is preferably filled with a liquid of the same kind as the two closed pockets Ba and Bb. This container has excellent stability due to its shape.

The container shown schematically in FIGS. 13 and 14 differs from that shown in FIGS. 1 and 2 only in that its upper edges 5A, 5B are arranged in an inclined plane with respect to its bottom 1.

Until now, it has been assumed that the sealed pocket B is filled with the same type of liquid as the main cavity A, but the pocket B of the container of the above-described type may be filled with a pressurized gas such as air, for example. However, when the sealed pocket B is filled with pressurized gas, it is preferable to use different types of containers as shown in FIG. 15, for example.

In FIG. 15, the container consists of a main cavity A and a sealed pocket B filled with fluid and not in communication with the main cavity. The pocket B and the fluid contained therein are selected to impart some strength to the container, especially when emptying the main cavity A, which is done after making the cut along the dashed line C, for example, via an injection tube. The main cavity A is filled with mineral water, while the sealed pocket B is filled with a pressurized gas such as air, for example slightly compressed.

The container has a bottom 1 and two side walls 2a and 2c, which are preferably made of a thin sheet of one flexible synthetic material which is bonded along the overlapping edges 3a and 3b. The sealing pocket B is separated from the main cavity A by a continuous bond line 4 interconnecting the two overlapping portions of the side walls 2a and 2b. The bottom 1 and the two side walls 2a and 2b are made of a composite composite of known type which can be heat-bonded only to the surface appearing inside the container and the bottom 1 consists of two side walls 2a and 2b) having two V-shaped corrugations 1a and 1b extending in parallel, one of each end of each of these two V-shaped corrugations by a junction 19 and the other by an adhesive 20 It is sealed. However, at the bottom 1 the two V-shaped corrugations 1a and 1b are separated from each other and their ends are cut and glued obliquely as clearly shown by reference numeral 19 in FIG. Finally, the lower edges of each of the two V-shaped pleats 1a and 1b of the bottom 1 are tightened by an adhesive 21 extending over the entire length of the pleats 1a and 1b.

The weight of the liquid contained in the main cavity A has the effect of flattening the inner surface of the two V-shaped pleats 1a and 1b of the bottom 1 except near the bonded end of the pleats, but nevertheless The bottom 1 is a support surface large enough to provide good stability of the vessel lying on the horizontal plane. The sealed pocket B forms a handle to facilitate handling of the container, and may also take any of the various forms described above, or may be in a separate shape to form a bow-shaped handle. have.

The structure of the container made of the thin flexible composite shown in FIG. 16 is such that the bottom 1 two V-shaped pleats 1a and 1b are connected to each other with an adhesive at their corresponding bonded ends 3c and 3d. It differs from the structure shown in FIG. 15 and the structure mentioned above mainly in that it exists.

The vessel (FIG. 16) likewise has its bottom flattened by the weight of the mineral water contained in the main cavity A, in which the flat part of the bottom 1 is surrounded by all the shafts by the adhesive beads 21. This further increases its stability on flat surfaces. The beads form a kind of rigid frame that supports the container on a flat surface.

In addition, a container made of a thin and flexible synthetic material according to the present invention may be of a different form than the one described above, the different form including other operations such as expansion and vacuum forming, in addition to the bonding operation and the cutting operation as necessary. It can be obtained by a manufacturing method. In addition, the bonding operation can be replaced by the bonding operation using a suitable adhesive. Moreover, the vessel shown schematically in FIG. 25 is composed of a main cavity 101 and a second cavity 102. These main cavities are separated by a bond line 103, and the third cavity is defined by three other bond lines 104, 105 and 106.

In the embodiment of Figure 18, it has a hollow or hollow filled cylindrical cross section and is inserted into a solid member 107 cavity made of wood, cardboard or synthetic material. This can be inserted through the side of the handle, in which case the adhesion takes place later (eg 105).

In FIG. 19, the solid member 107a is the same shape as that shown in FIG. 18 but is flat.

FIG. 20 illustrates a variation in which a solid U-shaped solid member 108 surrounds the cavity 102, which may be replaced with a single film 109.

In the example of FIG. 21, the cavity is filled with particles of synthetic material 110 through a filling orifice (not shown).

However, the most interesting embodiment is shown in FIG. 22 and how to obtain it in FIGS. 23A and 23B. In this case, the cavity is filled with material 111 which solidifies by expansion. This charging operation is performed as follows, for example.

a) Insert a needle 112 for supplying an expandable liquid composite into the second cavity 102.

b) inject liquid material;

c) Remove the needle and, as a variant, immediately block the orifice for needle passage by adhering a film forming sachets or curing the sprayed material to block the orifice itself. A basic feature of the principles of the present invention on which all presented embodiments are based includes providing a means for hardening the handle. Thus, for example, it would not be beyond the scope of the present invention to present a complete or partial adhesion of the two walls to form a handle with some strength due to this double film thickness.

In this case, a hole for holding a container may be provided as well as a ring hole for store display.

Finally, the double thickness of the handle can also be obtained by using the pieces obtained by cutting when producing the heat of the container.

Claims (1)

In a container consisting of at least one bottom (1) and two side walls (2a, 2b) formed of one or more sheets bonded along overlapping edges (3a, 3b), the main cavity (A), liquid, solid It consists of a sealed pocket B which contains a reinforcing means such as a member or pressurized gas and which is not in communication with the main cavity, the pocket being of a size and arrangement which imparts some rigidity to the container, especially during the discharge of the contents of the main cavity, Said pocket is made from a thin, flexible composite, characterized in that it is distributed by a continuous bond line (4) joining two adjacent edges of the container from the main cavity.

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