UA74860C2 - Container - Google Patents

Abstract

A container for liquid contents, comprising a compartment (4) which is defined by flexible walls (2, 3) and whose volume depends on the relative position of the walls (2, 3), a flexible duct means (22), which forms a connection between said compartment (4) and the surroundings. The duct means is bringable to an open state and to a closed state. The compartment (4) has a bone region (21), in which the liquid contents are essentially collected as the container assumes an upright position. Said walls (2, 3) are, by being actuated by said contents when collected in said bone region (21), adapted to assume a relate position acting for an increase in volume of the compartment (4), which increase in volume is counteracted by a negative pressure generated in the compartment (4). The duct means (22) is adapted to be brought to said closed state in response to the negative pressure generated in the compartment (4), and is extended from the compartment at an angle to a longitudinal axis of the container.

Description

Description of the invention

The present invention relates to a container for liquid contents and, more specifically, to a container containing a chamber bounded by flexible walls, the volume of which depends on the relative position of the walls, as well as a passage means that forms a connection between said chamber and the surrounding environment .

A container of the type described in the introduction is known, for example, from M/O 9941155. The container described in this document is collapsible and contains three walls, that is, two opposite side walls and a bottom. The walls, made of plastic material, are flexible and connected to each other, forming a chamber, the volume of which depends 70 on the relative position of the walls. The container contains a passage means, which can consist of either a tubular element inserted between the side walls, or made integral with the side walls.

With such a container, there is often a problem of reliable resealability, that is, ensuring that it remains hermetically sealed for a sufficient period of time when stored, for example in a refrigerator. The container is opened, for example, by cutting the passage, after which the liquid 19 product stored in the container can be poured. However, it is desirable to be able to reliably reseal the passage medium, as otherwise the product will be exposed to ambient air. The possibility of reliable resealing is provided by means of a connecting means that closes and opens, such as a threaded cap, which is connected to the through means, or by means of a pinching means which is superimposed on the through means.

These methods of ensuring reliable resealing of the container are, however, complex. Thus, there is a need for a container that facilitates resealability.

Thus, the object of this invention is to create an improved container of the type described in the introduction.

Another challenge is to create a container that provides improved reliable resealability. with

According to the present invention, these tasks are solved with the help of a container that has the characteristics of clause 1 of the formula Ge) of the invention. Preferred variants of the container according to the invention are presented in clauses 2-13, dependent on clause 1.

More specifically, according to the invention, a container for liquid contents is proposed, containing a chamber bounded by flexible walls, the volume of which depends on the relative position of the walls, a flexible passage means forming a connection between said chamber and the environment, and the passage means can Ge) to be transferred to the open state and to the closed state, and the chamber contains a bottom region in which the liquid content is mainly collected in those cases when the container assumes a vertical position, and the indicated container is characterized by the fact that the indicated walls are made so that under the influence of the specified content collected in the "I bottom region, they take a relative position that increases the volume of the chamber, and this increase in volume is counteracted by the negative pressure arising in the chamber, and the specified passage means is made with the possibility of transition to the specified closed state in response to the negative pressure generated in the chamber, while the indicated passageway extends from the chamber at an angle to the long axis of the container.

This ensures a reliably self-sealing container. The container contains walls that, under the influence of the liquid content, can take different positions that affect the volume of the chamber. At the same time, it is guaranteed that the walls of C 70 will take a position that increases the volume of the chamber when the container takes a vertical position. Thus, a negative pressure will arise in the c chamber, and this negative pressure counteracts the increase in volume and, in addition,

"Iz" causes the closing of the transit facility. The placement of the passage means, departing from the chamber at an angle to the longitudinal axis of the container, prevents the spread of pressure on the passage means, which carries the contents to the side walls of the container.

When handling the container according to the invention, the passage means will thus be closed after the termination of the pouring operation, when the container again assumes a vertical position. This eliminates the need for mechanical sealing measures such as screw caps or clamps.

According to a preferred embodiment, the container according to the invention contains two opposite walls, because they are connected along a common connecting section, and which in the non-activated state tend to fit tightly

Gee! 20 to each other. Preferably, the passage means is made integral with the indicated side walls and is preferably formed of two protruding wall sections adjacent to each other, and the indicated wall sections are connected to each other along the edges.

According to another preferred embodiment of the invention, the passage means has interior surfaces that face each other and are designed to fit together in a sealing manner when the passage means is closed 29 in response to the negative pressure generated in the chamber. Such surfaces mainly have high flatness

GF) (smoothness), which contributes to the provision of airtight reliable sealing of the passage medium in response to the negative pressure that has arisen in the chamber.

The container is preferably made of a material containing a filler of mineral material and a binder of polyolefin material. The filler is mainly chalk (calcium carbonate). 60 According to another preferred variant of the invention, a means for transfer is located on the first side of the container. The means for transfer is preferably placed in the specified connecting section.

According to another preferred option, the passage means is placed in the outlet area located on the second side of the container and at a distance from the indicated bottom area. Said second side is preferably located opposite said first side. for According to another preferred option, the passage means extends perpendicularly to the longitudinal axis of the container.

The passage means is preferably sealed in the unopened state of the container and can be opened by cutting or a similar operation.

Below, preferred variants of the invention are described by way of example with reference to the accompanying drawings, in which:

Figures 15 and 15 are perspective views of the preferred embodiment of the container according to the invention in a filled and not yet opened state;

Fig. 2 is a cross-sectional view of the container of Figs and 15, with some details removed to show the 7/0 Construction of the container;

Figures 1a and 3b are perspective views of the container in Figures 1a and 16, in the filled and open state;

Fig. 4 - a cross-sectional view along AA in Fig. 3;

Fig. 5 is a perspective view of the container according to Fig. 3a and 3b, during the pouring operation,

Fig. 6 - a cross-sectional view along B-B in Fig. 5;

Figures 7a-7c are perspective views showing the handling of the container in Figures 3a and 30 when pouring the contents in the container;

Fig. 8 is a cross-sectional view of the second embodiment of the container according to the invention with a passage means extending from the camera at an acute angle to the longitudinal axis of the container.

Figures 1a and 15 show the preferred embodiment of the proposed container 1 in an unopened state, filled with liquid contents. Container 1 is particularly suitable for liquid foodstuffs such as milk, fruit juice, water or wine.

The container 1 is compressible, i.e. compressible or collapsible and for this purpose contains three flexible walls, two of which are located against each other and are the side walls 2, and one is the bottom wall 3.

Walls 2, 3 can be made of plastic material, preferably of material containing a bulk filler of mineral material and a binder of polyolefin material. The filler is mostly chalk. The walls 2, C are connected to each other, forming a chamber 4, the volume of which depends on the relative position i) of the walls 2, C and which is clearly visible in Fig.2. Two side walls 2 are connected by welding along the connecting section 5.

The flexible walls 2, C are made in this way and have such rigidity that in the non-activated state, or in the corresponding unfilled state of the container 1, they tend to fit tightly to each other. If the walls contain a filler on a mineral basis, such as chalk, the specified stiffness is mainly provided by the filler. When the proposed container 1 is filled with a liquid content, it affects the walls 2, C in so to such an extent that they adopt a relative position in which the chamber 4 limits the volume necessary to accommodate the contents. "

As mentioned above, the container 1 belongs to the compressible type, which means that the volume limited by the chamber 4 decreases as the container 1 is emptied.

The means for transfer 6 is located in the connecting section 5 on the first side of the container 1 and contains, in the version shown, an area of 8 holes with a first, essentially round hole 9 and a second, essentially elongated hole 10. As a result, the means for transfer b forms a handle 11 , which allows the user to lift the container 1 with the help of four fingers, while between the holes 9, 10, a load-absorbing part 12 is formed, which prevents bending or other deformation of the handle 11 during handling. container 1. The two holes 9, 10 of the handle 11 are located at an angle of about 252 to the vertical line that "" passes through the container 1. Experiments have shown that an angle of about 20-30 provides sufficient convenience for the user when handling container 1.

Figure 2 shows a cross-section of the container 1 according to Figures 1a and 15, with the near side wall 2 removed. In the drawing, the far side wall 2, the bottom wall C and the construction of the connecting section 5, along which the two side walls are connected, are visible inside 2. In the bottom region 13 of the container 1, the side walls 2 are connected to the bottom wall 3, on the one hand through the lower connecting part 14, along which each side wall 2 is connected to the bottom wall C and, on the other hand, through two side connecting sections 5, along which all 5r three walls 2, C are connected to each other by a common weld. Camera 4 is thus limited to the sides

Fo by the walls 2 and the bottom wall 3. The connecting section 5 forms the section lines 16 facing the chamber 4. The chamber 4 contains the above-mentioned bottom area 13, the central section 17, on which the section lines 16 of the connecting sections face the chamber 4 5 are parallel, and the upper arcuate section 18 in which the section lines 16 continue essentially arcuately to each other, but does not include the outlet section 19 on the other side of the container 1, which will be described in more detail below. This design allows you to place the container 1 stably, regardless of how full it is. and F) When the container 1 occupies the vertical position shown in Fig. 1, the liquid content is collected mainly in the lower region 21 of the container 1, and the indicated lower region 21 is formed by the bottom region 13 and the central section 17. The container 1 according to the invention also contains passage means 22 located in the specified outlet section 19 at a distance from the lower area 21. Thus, the passage means 22 is placed on the second side 20 of the container 1, opposite to the specified first side 7, on which the transfer means 6 is placed.

The passage means 22 is integral with the side walls 2. More specifically, the passage means 22 is formed from a wall section 23 of each side wall 2. Each wall section 23 is located at an angle of 65 to the longitudinal axis of the container, and thus forms a protrusion of each side wall, which continues in the lateral direction 2, while the wall sections 23 are connected to each other along their side edges, which are thus included in the specified connecting section 5. The wall sections 23 connected to each other will thus form the indicated passage means 22, which at the first end 24 is connected to the chamber 4 of the container 1, and at the second end 25 is sealed by the indicated connecting section 5. Since the indicated wall sections and thus also the passage means continue from the chamber 4 at an angle to the longitudinal axis of the container 1, this it is ensured that the pressure created by the liquid contents and acting on the walls of the container is not transmitted to the passage medium. In the variant shown in Fig. 2, the passage means is located essentially perpendicular to the indicated longitudinal axis. It should be noted that the passage means 22 consists of two wall sections 23, which are firmly connected at the edges and which are flexible, and each of them has an inner surface of 7/0.25, and these inner surfaces, in the absence of the influence of the specified content, tightly adhere to each other .

In order to open the container 1 according to the invention, the second end 25 of the passage means 22 is removed by cutting or a similar operation. It is clear that such a cut can be made to obtain a hole at an arbitrary angle. Opened in this way, the container 1 is shown in Fig. 3a and 3b.

When the container 1 according to the invention occupies the specified vertical position, the liquid content is collected in 7/5 mainly in the lower area 21 of the chamber 4, as shown in Fig. 4 in the section of the container 1 according to Fig. 3. It should be taken into account that part of the contents can be kept in the arc-shaped section 18 of the container 1 when the container 1 is not yet completely emptied. The content will affect the side walls 2 of the lower area 21 to such an extent that the side walls move away from each other and as a result take a relative position that increases the volume of the chamber.

The arcuate section 18 of the chamber 4 will not, however, contain any content - or, as mentioned above, will only contain part of the content - due to which the side walls 2 in this section tend to abut one another, which in turn leads to a decrease in the volume of the chamber 4. However, the increase in the volume at the bottom exceeds the decrease in the volume at the top, which leads to the occurrence of a negative pressure in the chamber 4, counteracting the increase in volume.

Figure 5 shows the container 1 according to the invention, during the pouring operation, and Figure b shows a cross-section of the container 1 according to Figure 5. When pouring, the container 1 is transferred from a vertical position to a position with a forward tilt, and Fig. b shows how part of the contents enters the arc-shaped section 18 (8) of the chamber 4, and the resulting increase in volume in this section 18 is compensated to some extent by reducing the volume in the lower region 21. The relative change in volume leads to the fact that the negative pressure prevailing in the chamber 4 is removed. Fig. 7a-7c shows the use of the described container 1 for pouring the liquid contents in the container 1, such as milk. co

Figure 7a shows an open container 1, which is in a vertical position on its base. co

The liquid content is collected in the lower region 21.

Fig. 7p shows the container 1 in the raised position for the pouring operation, when part of the contents in the container 1 moves from the lower region 21 to the arc-shaped section 18 and the outlet section 19 associated with it. The liquid content will pass to the passage means 22 and thus create a pressure that pushes the wall sections 23 of the passage means 22 and their inner surfaces 26 apart, allowing some of the contents to be poured into the glass 27. As some of the contents move from the lower region 21 to the arcuate section 18 and the outlet section 19, the pressure exerted by the specified content on the side walls 2 in the lower " region 21 will decrease, thus causing the side walls to move towards each other, which leads to a decrease in the volume of the chamber 4. This decrease of volume exceeds the increase in volume in the specified arcuate section. 18, which leads to the removal of negative pressure in chamber 4. y?" After the pouring operation is completed, the contents, of course, no longer exert pressure on the wall sections of the passage means, and the inner surfaces of the 26 wall sections are again in a state in which they fit tightly against each other. -I In Fig. 7c, container 1 is again placed in a vertical position. The content is collected again in the lower region 21, which means that the content again exerts pressure on the specified side walls 2, thus causing an increase in the volume of the chamber 4.

Go! This increase in volume means that in chamber 4 there is again a negative pressure counteracting the increase in volume. This negative pressure compresses the side walls 2 in that part of the chamber 4 in which there is no liquid content, and this part includes the arcuate section 18 of the container and may also include, depending on the filling of the container, a greater or lesser part of the lower region, thus ensuring that said side walls 2 in said portion of the chamber 4 are held in a position in which they fit snugly against each other.

The passage means 22 is made in such a way that it closes in response to the negative pressure generated in the chamber dv 4. In the shown embodiment, this means that the inner surfaces 26 of the wall sections 23 of the passage means 22 will be tightly pressed against each other, forming, thus , airtight sealing.

F) Positioning the passage means at an angle to the longitudinal axis of the container ensures that the pressure applied by the liquid contents to the walls of the container will not be transmitted to the passage means, which is not thus subjected to the opening effect of the pressure. As a result, a reliable sealing of the container 1 is achieved, which prevents ambient air from entering the chamber 4 of the container, which can have a negative effect on the contents.

The container 1 according to the invention is thus reliably self-sealing, which eliminates the need for mechanical sealing measures, such as closing with a lid or clamp.

To re-pour the contents, it is only necessary to lift the container 1 and perform the re-pouring operation, thus stopping the effect of negative pressure. The pressure that develops the content during the pouring, 65 causes, as described above, the separation of the wall sections 23 of the passage means 22, again allowing the content to be poured.

Experiments have shown that the ability of container 1 to reliably seal is essentially independent of how full the container is.

Thus, the present invention provides a reliably self-sealing container 1. More specifically, the container 1 contains a passage means 22 that can be opened, for example, by cutting. In addition, the container 1 has flexible walls, which, when handling the container 1, are affected by the liquid contents of the container 1 in such a way that the volume of the chamber 4, limited by the walls 2, 3, decreases during pouring and increases when the container 1 is moved to a vertical position. This increase in volume leads to the creation of a negative pressure in the chamber 4, counteracting the increase in volume and guaranteeing the sealing of the open passage means 22. That the 7/0 passage means 22 continues away from the container, that is, that the passage means continues under at an angle to the longitudinal axis of the container, ensures that the pressure exerted by the contents on the walls of the container does not spread to the passing means. As a result, a reliable seal is guaranteed, which prevents air from entering the chamber 4 of the container 1 through the passage means 22, which could have a negative effect on the contents.

In order to ensure airtight sealing of the passage means 22 under the influence of negative pressure arising in the chamber, the inner surfaces 26 of the passage means have high flatness (smoothness).

Figure 8 shows another embodiment of the container 1 according to the invention, with a passage means 22 extending from the chamber 4 at an angle less than 902 to the longitudinal axis of the container 1.

It is obvious that the present invention is not limited to the shown variants of the container 1 according to the invention, for example, the passage means can be integrated with the container 1, that is, it does not protrude from the container 1, but only from the chamber 4. Thus, there is the possibility of introducing a number of modifications and options included in the scope of the invention, which is determined by the attached claims.

Claims (13)

The formula of the invention 1. A container for liquid contents containing a chamber (4) bounded by flexible walls (2, 3), the volume of which depends on the relative position of the walls (2, 3) and a flexible passage means (22) forming a connection between said chamber (4) and the environment, and the passage means is capable of being brought into an open state and into a closed state, and the chamber (4) has a lower zone (21) in which the liquid content is mainly collected when the container assumes a vertical position , which differs in that the specified walls (2, C) under the influence of the specified contents collected in the specified lower zone (21) are able to take a relative position that contributes to the increase in the volume of the chamber (4), which is counteracted by the negative the pressure created in the chamber (U, and the specified passage means (22) is able to be brought to the specified closed state in response to a negative pressure created in the chamber (4), while the specified passage means (22) continues from the chamber at an angle to the longitudinal axis of the container. 2. The container according to claim 1, in which the specified walls (2, 3) contain two opposite side walls (2) connected along the common connecting area (5), and which, being in the non-activated state, tightly fit " 70 to each other one - about the village 3. The container according to claim 2, in which the passage means (22) is made integral with the specified side walls (2). 4. The container according to claim 3, in which the passage means (22) is formed from two adjacent protruding sections (23) of the side walls (2), and the specified wall sections (23) are connected to each other along the edges. 5. A container according to any preceding claim, in which the passage means (22) has internal surfaces (26) facing each other and designed to hermetically abut one another when the passage means (22) is closed in response to the negative pressure created in the chamber (4). 6. The container according to claim 5, in which the specified surfaces (26) preferably have high flatness. ve 7. The container according to any previous item, in which the container is preferably made of a material containing a filler of mineral material and a binder of polyolefin material. 8. Container according to claim 7, in which the mineral material is chalk (calcium carbonate). Me 9. A container according to any preceding clause, in which a means of carrying (b) is provided on the first side (7) of the container. 10. The container according to claim 8 with reference to any of claims 2-4, in which the transfer means (6) is placed in the specified connecting area (5). 11. The container according to any preceding claim, in which the passage means (22) is located in the discharge area (19) located on the second (20) side of the container, at a distance from said lower zone (21). (F) 12. The container according to claim 11, with reference to claim 9 or 10, in which the specified second side (20) is located opposite the specified first side (7). 13. A container according to any preceding claim, wherein the passage means (22) is sealed in the not-yet-open state of the container and can be opened by cutting or a similar operation. b5