Packaging container and a blank for him

 

(57) Abstract:

The invention relates to a packaging container for liquids and the workpiece for him, made of layered material. The side walls of the container is formed by alternating primary and secondary vertical panels, each secondary panel is limited by a pair of vertical bend lines, the ends of which are pairwise connected by a pair of diagonal bend lines, converging at the top and bottom of the container. Provides a greater volume of the container in relation to the area of a consumable material, the increased strength of the container and the convenience in handling it. 2 C. and 18 h.p. f-crystals, 9 Il.

The present invention relates to a packaging container formed from a laminated packaging material in which you have line of bend or fold lines, to facilitate the transformation of the packaging material into individual filled and sealed packaging containers and blanks of packaging material from which such containers are formed.

Consumer packaging disposable type for drinks and other consumer products are usually made from laminated packaging material containing layer is Estim, it has the fold lines or creases to facilitate folding of the material into individual filled and sealed packaging containers. Required impervious to liquid seams are usually performed by thermal sealing, and in this case, thermoplastic layers of the packaging material used as an adhesive or binder. Packing containers of the prior art of this type are usually either a box (Tetra Brik), or it occurs with the so-called pliers riding (Tetra Rex), and is described in EP 19324 and EP 356831 respectively. As packaging containers of the box, and packaging containers with pliers riding in most cases mainly include four vertical panels of the walls or the side walls with the top and bottom panels. Usually packaging type box has two opposite side walls of a small width and the other two side walls, a substantially wider than the previous side walls. Containers with pliers riding usually have side walls essentially equal width.

Packaging containers in the form of a parallelepiped or with pliers riding with four mutually perpend is tanerau, commonly used for packaging, such as milk, juice, or other liquid consumer products. One important reason for this circumstance is that the symmetric packing containers, which are essentially rectangular configuration, are well suited for dealing with them not only for consumers, but also in robotics or mechanical operations in connection with the production and different types of grouping or placement in cardboard boxes. Consumer containers, for example, are usually placed in groups by 18 (36) containers, pallets or in cartons, which are then provided with a lid or wrap with shrink film. By adjusting the size of the pallet to the position of the group will be obtained a stable and easy-to-use unit, as in the form of a separate container panel side walls of the individual packaging containers are closely adjacent one another and serve the common support.

Thus, although the usually prevailing configuration containers provide great practical advantages, they do not provide the optimum design from the point of view of consumption of packaging material in relation to the volume of the container. In precise what about for practical reasons the ball as the form of the packaging container is certainly less convenient. Attempts were made to reduce the flow of material into the volume of the container, providing a container having a first essentially the shape of a parallelepiped, more or less convex to the outside panels of the walls, which, however, was performed by placing tapering to both ends of the secondary panel walls between the primary panels of the walls, as described in patent EP 277633. It is proved that this process reduces material consumption, however, the packaging container with curved outside walls will be functionally the worst quality configuration, which will lead to difficulties in handling and placing the containers in group a cardboard box for transportation and storage.

Further, in the above-mentioned packaging containers according to the prior art, having the configuration of a parallelepiped, laid flat angular wings, which are created in connection with the bending and forming, must be folded down and secured on the outside of the packaging container so that they do not tribalise during careless handling of the packaging container. Reliable fixation of the angular wings requires that they are the b flat laid the corner of the wing. The surface in the form of arches, curved or angular, hamper reliable sealing angular wings in the flat position. Speakers or poorly compacted angular wings quickly ukreplyayutsya when handling the packing container and present special problems when stacking containers in the group of the packaging in the form of a box or pallet, when, for example, it should be necessary to push the containers or shove them in a relatively narrow space.

Similar containers with pliers uppers usually are manufactured so that they had a volume defined by the supplier-customer and choose from standard volumes, which are considered to be accepted by the market of consumers of the product (i.e., pint, quart, half-gallon, gallon, pint, liter, etc). The surface area of the container and particularly the area of the four side walls, a large part of the surface area, are largely fixed for a given volume of the container. The decrease in surface area for a container with pliers riding will reduce the amount of material used for the formation of containers, thereby reducing the cost of containers, while ensuring that the container had the required amount.

One of the objectives of the invention is, thus, giving without expensive technical intervention and rework, packaging containers of the prior art in the form of a parallelepiped or with pliers riding a larger volume relative to the surface of a consumable material, while packaging bags, despite the different shape from the point of view of appearance, retain their convenient form from the point of view of handling and packaging, with a predominance of flat panels of the walls and a good or even increased strength in dealing with them.

An additional object of the invention is the creation of a packing container, as described above, mainly the type of a parallelepiped, in which the panels of the walls form an essentially flat surface to which is attached flat laid Plover the aforementioned type, basically the type of a parallelepiped, in which the angular wings laid flat condition connected with the outer side of the packaging container, in which the recess so that the wings do not protrude beyond the outer contour of the packaging container, and as a result there is a risk of weakening or disclosure when dealing with the packaging container.

In addition, another object of the invention is the creation of a workpiece for the production of the above-described packaging container.

The above and other problems are solved by the invention by means of a packing container described in the introduction of the type by the fact that the secondary panel walls in the corners of the side walls defined by two essentially straight vertical bend lines, the upper and lower ends of the panels respectively connected in coaxial converging diagonal fold lines that meet at one point. This is achieved by reducing the amount of packaging material required for the production of a container of the same volume.

Procurement described in the introduction of the type is in accordance with the invention murine panel, which for the most part their Doliny case, with the upper section, middle section and lower section, each section separated from the other by one or more generally horizontal weakened lines. The upper section of the rectangular housing contains a few weak lines of the cuts used to delineate the bent upper section of the receiving container, while the lower section of the rectangular housing contains a few weak lines to delineate the bent lower section of the receiving container. The middle section of the rectangular housing contains a few weak lines to delineate the beveled side walls at the corners of the resulting container. Weakened line at each corner includes a diagonal weakened lines intersecting at one point. Diagonal weakened lines are made adjacent the upper section and the adjacent lower section.

The preferred structural embodiment of the packaging container and blanks according to the invention is described with detailed reference to the drawings, in which:

Fig. 1 - preparation for the first variant implementation of the packaging container according to the invention;

Fig. 2 is a perspective view of the first variant implementation of the packaging container according to the invention, a top view under threat is through the projection of a packing container in accordance with Fig. 2 and 3;

Fig. 5 is a end view of the vertical projection of the packaging container according to Fig. 2 and 3;

Fig. 6 is a top view of the packaging container according to Fig. 2 and 5;

Fig. 7 - preparation for the second variant of the packaging container according to the invention;

Fig. 8 is a perspective view of the second variant of the packaging container according to the invention, a top view angle;

Fig. 9 is a perspective view of the packaging container according to Fig. 8, bottom view angle.

Like the known packaging containers and blanks similar type of packaging container and a blank for him in accordance with the invention are typically used for packaging liquid food products, such as, for example, milk and juice. In this case, you typically use the packing materials that contain many layers, such as paper, plastic and aluminum foil. Typical laminated packaging material has a Central relatively thick layer of fibrous material or paper, both sides coated with layers of thermoplastic material, e.g. polyethylene. In order to improve gas-tight properties of the packaging material, it may also contain additional layer of insulating type, for example of aluminum foil is Lena. This layer later forms the internal surface of the packaging container, which is in contact with the contents. As the outer side of the laminated packaging material, and its inner side, thus, covered with a thermoplastic material, which is used to make possible TermoSanitari layered packaging material during the conversion of the blank into the finished filled packing container. Device for TermoSanitari used in this case, it is well known in this technical field as regards the material and methods and devices that are used for making traditional packaging containers such types. For further information in this respect one can refer, for example, in EP 19324.

The workpiece 1 to the packaging container shown in Fig. 1 as part of the sheet of packaging material 2. The workpiece 1 to the packaging container is intended for transformation into the packaging container 4 of the type shown in Fig. 2-6. The packaging container 4 is formed by bending and TermoSanitari flat first packaging material. The workpiece 1 is supplied in the form of a continuous sheet, and must be offormula is bigcity the operation of forming the bend, procurement for packaging package 1 provided with a pattern of fold lines.

To facilitate molding of the container by bending the blank into a desired shape each blank 1 of the packing container provided with a pattern of weakened lines, which typically may consist of folds or cut lines, i.e., linear depressions in the material, but may also consist of perforations or other types of linear attenuation of the material. For short segments of the fold lines may also be spontaneous. They are the folds that occur as a direct result of bending along the adjacent parts, such as pre-made folds. Each blank 1 is divided by two horizontal bend lines 6, 7 on essentially the Central section 8, the upper end section 9 and the lower end section 10. Horizontal fold lines 6 and 7 are essentially straight and continue in parallel throughout the greater part of the width of the workpiece 1, i.e. in principle transversely between the longitudinal edges 11 of the sheet of packaging material 2 (Fig. 1). The Central section 8, located between the two horizontal bend lines 6 and 7, is divided by a vertical fold line 14 and diagonal whether four of each type. In laid flat, not bent workpiece packing package one of the primary panel 16 is divided into two parts, which are not connected with one another during the formation of the blanks 1 finished packaging containers, and in this case, both of the longitudinal edges 11 of the sheet of packaging material sealed impermeable to liquids, one to another by longitudinal sealing panel 18. In a constructive implementation of Fig. 1-6, the container formed from the blank 1 has a rectangular top and bottom located opposite narrow sides and opposite each other over a wide parties.

In the first embodiment, the packaging container 4 and the workpiece 1 secondary fold lines 19 (Fig. 4) continue in pairs and cross each secondary panel 17 and divide it into an elongated rectangular portion with a triangular parts attached to the short sides. Each secondary panel 17, therefore, is limited to two mutually parallel vertical fold line 14, which extend in the greater part of the height of the workpiece 1. Preferably the vertical fold lines 14 have a length that is greater than half the distance between the lines with the ranks of the fold lines 19 and diagonal fold lines 15, which are connected in coaxial lines and meet at the point 20, which in a constructive implementation in accordance with Fig. 1-6 is located on the upper and lower horizontal bend lines 6, 7, respectively.

The upper and lower end sections 9 and 10 contain the number of panels of the end walls that allow for flexing and sealing the upper and lower end parts 22, 23, respectively, of the packaging container. Each end section 9, 10 contains a number of essentially rectangular end panels 24, a number of essentially triangular corner panels 25 and related essentially triangular otgibami panels 26. Each end section 9 and 10 ends at the transverse edges with notches 12, 13 of the workpiece through an elongated transverse sealing panels 27, 28, which extend across the entire width of the workpiece 1 of the packaging container.

Conversion of flat blanks of the packaging container 1 in the finished, filled and sealed packaging containers 4 begins with the elongate sheet of packaging material 2, which form blanks for packages shown in Fig. 1. The first stage of the process consists in bending the sheet material in tubular form, the education impermeable to liquid seal or seam. Thus formed pipe material then is filled with the intended contents, after which the transverse flat pressing and sealing the upper and lower transverse sealing of the panels 27 and 28 respectively, the pipe is divided into a continuous chain pincushion semi-finished products. In this case, you may, probably, be certain processing tube formation in order to start the curl essentially along the longitudinal vertical and horizontal bend lines 14, 15.

Pincushion packing containers are then separated from each other by transverse cuts in the transverse sealing panels 27, 28 into sealing ribs 29, 30. Separated so completely filled containers are then subjected to a final forming process using profiled wings or plates, which surround the container so that, using the contents enclosed in the same package as the buffer container is compressed so that it takes the desired final form by the final bend by bend lines. This creates a surplus of material for purely geometric reasons, and this excess is collected in four corner, krilis chateaude to the outer end of the packaging container, as shown in Fig. 2 and 3.

In Fig. 2-6 shows how the blank of Fig. 1 by folding and sealing converted into finished packaging container 4. From these drawings it is clear how the various panels 24-28, forming a corresponding each end section 9 and 10, are used for forming essentially flat end parts 22, 23. The sealing panels 27, 28 form a sealing ribs 29, 30, continuing over the end parts 22, 23, while the end panel 24 together form the main part of the flat surfaces of the end parts 22, 23. Triangular corner panels 25 form together with tribemate panels 26 triangular flat pressed angular wings 31 which hang along the short sides of the rectangular top and which thibaudia down towards the outside of the container and sealed thereto in a known manner. More precisely, angular wings 31 on the upper end portion 22 of the container are bent down and prepective to two shorter primary panel 16 of the container, while the angular wings 31 on the lower end of the container are bent back along the short sides of the rectangular bottom and prepective to the bottom of the container. One of these is raised vertically on top of the container and separates one primary panel 16 into two parts, and lasts up to two sealing edges 29, 30 of the container.

In the second embodiment, the container according to the invention (Fig. 7-9), the container made from the blank 3 has a square upper and lower sides of essentially equal length. The workpiece 3 has two horizontal fold lines 6, 7, which divide the blank on the Central section 8, the upper end section 9 and the lower end section 10. The workpiece 3 has a longitudinal edges 11 and continuing across their edges 12 and 13. The Central section 8 is divided by a vertical fold line 14 and diagonal bend lines 15 on four primary panels 16 and four secondary panel 17. The placement of the bend lines in the second embodiment (Fig. 7-9) is essentially similar to the placement of the bend lines in the first embodiment (Fig. 1-6), except that the secondary fold lines 19 in the second embodiment is excluded because the secondary panels are narrower than in the first embodiment, and therefore, they are easier to mould. Another difference is that the point 20 (Fig. 8) separated by intervals of a horizontal bend lines 6, 7, and diagonal fold lines 15 intersect at point 20. Vertical corner fold lines 21 continues between the point 20 A execution container (Fig. 7-9) shows the upper part in the form of pliers top 22. In this execution, the workpiece 3 is usually separated from the sheet material before they are formed into containers, and molding is carried out for each of the blanks separately. As mentioned in the first type of preform molding operation begins with the fact that the workpiece 3 is converted into tubular form by using the fact that both its longitudinal edges 11 sealed to each other in the area of the seam 18. As shown in Fig. 9, when forming the lower part, for which various panels, which form the lower end section 10, bend using showing bend lines in a flat impermeable to liquid end part 23 or the bottom. As in the embodiment of Fig. 1-6, the resulting excess material forms an angular wings, which, however, in this embodiment, fold under each end panel 24, and the result is not visible in Fig. 9. The lower transverse sealing bar 28 is used for forming the sealing ribs 30, which should join the bottom of the container. In this molding process, the workpiece 3 is converted into an open top container. A container of this type is then filled with the intended contents, before the e pliers top is closed and sealed. This is done in a way appropriate to that used in the molding process of the bottom, i.e., both end panels 24 plushevaya towards one another in the continuation of the simultaneous reflection of the inside corner panels 25 and bending the panels 26 under the side panel 24. The upper transverse sealing panel 27 is then used for impermeable to fluid sealing panels 24, 25, 26 one to another to create protruding to the outside of the sealing edge 29. Thus, the packaging container is completed, and no additional forming operations are usually not taken as a packing container of the secondary panels 17 have a substantially smaller width and will automatically create a desired shape and configuration in connection with the conversion of a flat workpiece 3 in tubular form. If, however, it will be necessary, can also be produced by processing the molding from the outside through having an appropriate shape of the valves or other instruments, and, of course, the secondary fold lines can also be performed in this embodiment in order to facilitate the molding operation.

The body of the container in the embodiment as in Fig. 1, and Fig. 7 posledstviya panel 17, this can result in the container is given throughout the greater part of its height octagonal configuration, the cross-sectional area which is greater than the cross-sectional area of the upper and lower end parts 22, 23 of both embodiments of the container, respectively. This difference is particularly evident from Fig. 6. Vertical mutually parallel fold lines 14 provide to the primary panel 16 and the secondary panel 17 have the same width on the larger part of their length, which entails that the Central part of the panel consists of mutually parallel flat parts. In the implementation according to Fig. 1-6 secondary panels 17 have a width which is essentially equal to the width of the primary panels 16 narrow side walls of the container 4. This creates maximum volume and gives the container the appropriate proportions, which facilitate the capture of the container when it is opened and emptied.

Using diagonal bend lines 15 and converging on a cone in the form of isosceles triangles end parts of the secondary panels 17 essentially octagonal Central portion of the container is gradually transformed into a part with a rectangular cross-sectional configuration that corresponds to configure out against continuing in the vertical direction of the rectangular part of the secondary panels 17, this bending is facilitated by the secondary bend lines 19 (where applicable). Accordingly, the upper and lower parts of the primary panels 16 slightly tilted inward with respect to the outer contour of the container defined by the Central part of the aforementioned panels. To facilitate this, it is also possible to provide the primary panel transverse bend lines corresponding to the secondary fold line 19, in which the two upper parts of the narrow primary panels 16 (Fig. 2) used for mounting flat laid the corner of the wings 31, the height (length vertical) essentially corresponds to or is slightly less than the height of the triangular parts of the secondary panels 17. In this case, angular wings 31, when they are bent down towards the front of the container and sealed to the upper parts of the above-mentioned primary panels 16, do not increase the width of the container, but instead are located within an imaginary vertical continuation of the Central part of the above-mentioned primary panel 16. Thus, the angular wings 31 will be protected during transportation and handling of the container, for example, in connection with the placement of multiple containers close ranks in group transportsector of mutually parallel flat parts, does the prospective placement of containers in the so-called group of transport packets, i.e. pallets of paper or plastic with a relatively low walls of the sections. The reason for this is that in the containers according to the invention when they are laying in this pallet is flat parallel side walls 16 of the containers are adjacent to each other on the greater part of the height of the container that creates a mutual support group for the packaging and reduces the risk that the individual containers will tip over or move in relation to one another. Since the flat part of the wall continued at a relatively large distance down towards the lower ends of the containers, can be used to group shipping containers in the form of pallets with relatively low walls of the sections. In principle it is enough to part of the wall continued up somewhat above the lower ends of the flat parts of the walls.

In known containers, in which corresponding parts of the walls are characterized by the same curvature over the entire height of the wall, thereby lost the function of support and stabilization, and as a result of this group shipping container shall be fitted with sankampaeng containers, they carry. Even when using this design and the structure stability of the filled pallet, however, decreases as the absence of a plane adjacent to each other sections of the walls creates the possibility that the containers will be able to move or slip, so they will be inclined position in group transport packaging in case of shocks or jolts during transportation or handling, etc. In the end, the container according to the invention may also be provided with openable node 33 is not necessarily any known type.

As is evident from Fig. 7-9, the secondary panel 17, which includes a diagonal fold line 15, bounding the front-end part of the secondary panels 17, not continue to horizontal bend lines 6 and 7, but intersect at the point 20, which is separated by intervals of from two corresponding horizontal bend lines 6 and 7. Continuing in the vertical direction angular fold line 21 connects the point 20 and the corners at the top and bottom respectively. Thus, the secondary panel 17 this type of container is somewhat shorter than in the above-mentioned previous embodiment, and as secondary panel 17 also lockie parallel parts of the walls is also included in this embodiment, however, the sloping side walls which connect the Central part of the housing container (octagonal cross-section with a rectangular end parts 22, 23, slightly curved or concave. This type of container also provides a small benefit compared to conventional containers, equipped with four flat side walls, from the point of view of the relationship of volume to the area of the used packaging material. In addition, the container has a different profile, which allows to distinguish it more easily and be used as a means of identifying a particular type of product.

Giving the billet and the container appearance in accordance with the present invention, it is possible, using the production methods of the prior art, to convert or transform a flat workpiece provided with a pattern of lines bend in the packing container, which by comparison with the known containers of the identical type can hold more content relative to the surface area consumed packing material. The container has an octagonal cross-section in its Central part, and its walls are essentially vertical and flat. As a result, the container has a well-defined path, which unih packages cardboard boxes.

In the design and molding in accordance with the present invention as blanks for packaging containers and the corresponding containers, thus, be achieved a number of advantages. Increased savings, which is expressed in rational ratio between the amount of packaging and size of a consumable material, in practice provides a significant saving in the number of material used for the formation of a container of a given size. In accordance with the invention, the containers having a volume of, for example, 1000 ml, made of a material that is 8% smaller than was previously required for the manufacture of a container of the same volume. Also significantly noted that the packing container takes on a new characteristic appearance, and the consumer is easier to grab it and easier to use. In the molding exclusively direct (but angled to each other) vertical and diagonal bend lines are implemented relatively large flat and parallel to the surface of the walls, which retain a high capacity stacking of containers at the packing group of the packaging, while handling semispontaneous basically the same methods and equipment as previously known similar types of packaging containers, the transition to this type of containers can be carried out without significant and expensive redesign and reconstruction or refurbishment of used machines.

The present invention may be further modified without departing from the essence and scope of the invention defined by the claims.

1. Packaging container for liquid products containing multiple panels side walls, top and bottom, and the panel side walls continue between the upper part and lower part and contain a secondary panel, and each of the secondary panel of the side wall is limited by a pair of vertical bend lines, the ends of which are spaced respectively from the top and the bottom, and a pair of diagonal fold line that extends from the ends of the vertical bend lines and converging toward the upper part and lower part, respectively, and these upper and lower portions form a sealed fluid seams, including at least one of the upper and lower parts having a transverse sealing edge.

2. Packaging container according to p. 1 different is it part of the container.

3. Packaging container under item 1, characterized in that the said diagonal fold lines intersect at a point which is separated by spaces from the top and bottom of the container.

4. Packaging container under item 1, characterized in that the vertical fold line essentially parallel.

5. Packaging container according to p. 4, characterized in that the upper part and lower part are rectangular, with a pair of narrow panels side walls and a pair of wide panels of the side walls, the width of the secondary panels essentially equal to the width of the narrow primary panels.

6. Packaging container under item 5, wherein the upper portion includes a bent downward angle wings on each end of the rectangular top, partially covering the narrow primary panel of the side wall.

7. Packaging container according to p. 4, characterized in that each secondary panel wall includes an elongated, rectangular portion, formed between the respective pairs of vertical lines bend, with a triangular parts attached to its short sides.

8. Packaging container according to p. 7, characterized in that the triangular sections have essentially the same height, citiba, continuing across between the vertical lines bend secondary panels.

10. Packaging container according to p. 4, characterized in that the upper part and lower part are squares, and the upper part is made in the form of pliers top.

11. Packaging container under item 8, characterized in that the rectangular portion of the secondary panel of the side wall is essentially flat.

12. A blank for a packaging container for liquids containing layered packaging material having upper and lower horizontal fold lines corresponding to the top and bottom of the container, the primary panel side walls, as well as several secondary panels of the side walls, and secondary panels of the side walls is limited to pairs of parallel vertical bend lines, the ends of which are separated by gaps from the upper and lower horizontal fold line, and the secondary panel side walls inserted between the primary panels of the side walls, with the blank completed with the formation of a sealed liquid container containing the transverse sealing edge.

13. Procurement under item 12, characterized in that the secondary panel include a triangular face and the bend lines, which intersect at the point with the specified point is separated by intervals of a horizontal bend lines.

15. Procurement p. 13, characterized in that the triangular end section is limited to diagonal bend lines that intersect at a point which is located on the upper and lower horizontal fold line.

16. Procurement p. 13, characterized in that each secondary panel wall is divided into a Central essentially rectangular portion and a triangular end portion by a transverse bend lines connecting between a vertical bend line of the secondary panels of the side walls.

17. Procurement under item 12, characterized in that the mutual distance between the four adjacent parallel vertical bend lines are essentially the same.

18. Procurement under item 12, characterized in that the distance between the secondary panels of the side walls are essentially the same.

19. Procurement under item 12, characterized in that the length of the specified parallel vertical lines bend is more than half the distance between the upper and lower horizontal fold line.

20. Procurement under item 12, characterized in that the fold line is formed SC

 

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