JPS5929856Y2 - packaging container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a packaging container of the type arranged to be formed from a preformed sheet material, the sheet material having four side walls facing each other in pairs; several folded into cylindrical container bodies having one bottom and a top designed as an opening intended to be closed when the contents are packed into the packaging container, and divided by folds , i.e. two substantially rectangular sections connected directly perpendicularly to the first pair of opposite side walls and having a width corresponding to the width of this side wall and a height corresponding to half the width of this side wall. two substantially isosceles triangular partition surfaces connected directly perpendicularly to the other pair of opposing side walls and having a base length corresponding to the width of the side walls; four section screens that are folded in reverse to connect the equilateral side edges of the triangular section screen to the side edges of the rectangular section screen, and the upper edges of the section screens that are folded in reverse and the upper edges of the rectangular section screen are connected to each other; connected to four rectangular sealed section screens, said sealed section screens having a width corresponding to the width of said side walls, said rectangular section screens being folded into each other and at the same time said triangular section screens and a section that folds back. The screen is arranged to form a sealing fin when the container is closed by folding the screen under the rectangular section screen.

In the field of foodstuffs packaging and packaging materials have taken on ever increasing importance.

One of the reasons for this is that we are now trying to avoid repackaging goods while transporting them from manufacturer to consumer, which means that food products are becoming smaller and larger for consumers. This means that the container must already be packaged by the manufacturer, and that it must also be durable and capable of regular packing into a larger outer container for sale to the consumer.

The above applies in particular to the delivery of liquid foodstuffs such as milk;
Milk is now packaged in containers for direct consumption at milk shops.

These are often of such a shape that they can be packed into larger transport containers dedicated to this purpose, such as so-called roller racks with wheels and walls of wire or wire mesh, without too much loss of space. After filling the container for each individual consumer, the liquid is placed directly into the container, and the filled roller-scraping table is rolled out onto a waiting vehicle and transported to the point of sale.

Once these are reached, the roller spatula is rolled out and placed directly in the store at the consumer location where the containers will be displayed and sold.

This method of delivery completely eliminates time-consuming and costly repackaging, and virtually eliminates the personnel requirements, which are significant in view of labor's major share in total costs.

In order to maximize the advantages of the above-mentioned delivery method, this consumer container must be devised in such a way that it can be safely stacked in layers on top of each other.

This stackability depends not only on the durability of the containers but also on their shape, which to date has been the source of some problems.

This is because consumer requirements for containers require some type of container opening device or spout that is not always easy to combine with a container top design that is suitable for stacking.

A known type of container is the so-called gable-top container, which consists of a square cross-section, a flat bottom and a cone-shaped top of the roof.

The container has a built-in spout that is easy to open and automatically snaps open when the container is opened.

However, due to the presence of the sealing fin on the top, the containers cannot be easily stacked on top of each other.

In particular, we have tried to solve this problem by creating a kind of insert which, when placed on top of one layer of the container, forms a small top surface, on which the next layer of the container can be placed. I've been tried.

The insert is made of cardboard and has a flat top surface and a bottom surface that is recessed to accommodate the sealing fin of the underlying container and the crest of the roof.

Such inserts allow containers to be stacked in several layers on top of each other, but are unlikely to be able to automatically handle individual containers when placed in a larger transport container, such as a roller fin platform. Not suitable.

Although it is certainly possible to automatically place each layer of a consumer container into a larger transport container, the necessary inserts between each layer must be placed manually.

Another way to solve the stacking problem is for consumers to provide containers with flat tops, thus eliminating the need for inserts and allowing the containers to be stacked directly on top of each other.

Such containers are known.

Although this container is principally designed as a gable-top container, it has a flat top in the closed position apart from a sealing fin that projects vertically upwards.

For stacking several containers on top of each other, it is believed that the weight of the containers placed on top will compress the sealing fins and result in a horizontal position so that they do not interfere with the stacking.

But it doesn't work that well.

Because this seal contains four layers of material, it is stiff and difficult to break.

Also, if the sealing fin is not large enough to be satisfactorily affixed to the flat top of the container, the height of the sealing fin may be made larger for the purpose of increasing the surface available for gluing. If used, this would mean an increased consumption of materials, which is undesirable, especially in view of the current rapid increase in material costs.

If the seal is tightly glued, it must be very difficult to open the container and pour out the contents.

One object of the present invention is to overcome the above-mentioned problems and provide containers that are easy to open, yet stackable and safely sealed.

Another object of the invention is to obtain a container of the above-mentioned type in which the material is utilized efficiently and the amount of waste material is thereby reduced.

These and other objects have been achieved by the present invention, in which a packaging container of the type mentioned at the outset is provided with the following features:

That is, the sealing fin has one or more ears which are used to hold the sealing fin in the folded position after the sealing fin has been folded to meet the top of the container in the closed position. It is arranged to be attached to one or more side walls.

Preferred embodiments of the packaging container according to the invention are given the features that emerge from the appended claims.

The invention will be explained in detail below with reference to the schematic drawings in the appendix.

The packaging container shown in FIGS. 1 and 2 includes four pair-opposed side walls 1, 2 and a flat bottom, not shown.

The side walls are rectangular and turn directly into the top 3 at their upper ends.

The container is shown in the unclosed state in FIG. After filling, the container is closed, and the top 3 then assumes the outline shown in FIG.

The top part 3 has a number of partition surfaces separated by folds.

The two opposite side walls 1 of this packaging container each transform at their top end into a respective rectangular section surface 4, which surface is separated from the side wall 1 of the container by a horizontal fold 5.

The rectangular partition screen 4 has a width equivalent to the width of the container side and a height equivalent to half the width of the container side, and has two side walls 1 and 2.
It is bounded laterally by fold 12 which is a continuation of the vertical fold between 0 and at the top by fold 9.

Although the two opposing side walls 2 of the packaging container each transform at their tops into compartments corresponding in size and shape to the compartments 4, each of them is divided into three triangles by folds.

One of these triangular sections is designated by the reference numeral 6 and is substantially isosceles.

This triangular section ends at the bottom by a horizontal fold 7, which forms the upper limit of the side wall 2 and at the same time the base of said triangle.

In this way, the triangle 6 has a width corresponding to the width of the side wall 2 and the partition surface 4.
It has a height corresponding to the height of .

The isosceles of the triangular section screen 6 is formed by a fold 8, and this fold extends from each intersection of the folds 5 and 7 onto a fold 10 located at the same height as the upper limit fold 9 of the rectangular section screen 4. It extends to the midpoint where it is located.

Between the triangular section 6 and the rectangular section 4 there is located a triangular section 11 which is folded in reverse, each of which is delimited by folds 8, 12 and half of the fold 10.

Thus, above the above-mentioned annular part including two rectangular sections 4, two isosceles triangular sections 6 and four inverted fold sections 11, there are several sealing sections forming a sealed area. There are screens and they form a sealing fin in the closed state of the container.

The sealing area forms the upper limit of the packaging container and includes two opposing sealing sections 13 located above the rectangular section 4;
This dividing screen 13 has a width corresponding to the dividing screen 4, and the fold 9
separated from them by.

The height of the sealed area screen 13 corresponds to the width.

Between the two partitions 13 extends a partition 14 located above the reverse fold partition 11, which has a width corresponding to the width of the side wall 2 and a height substantially half of the partition 13. have

Both sections 14 are divided into two sections by a vertical fold 15, and this fold extends from the contact point of the fold 8 to the sections 14.
It extends to the upper edge of the.

According to the invention, one sealed section surface 13 has a laterally extending ear 16 at each end thereof, which is separated from the section surface 13 by a vertical fold that is a continuation of the vertical fold between the side walls 1, 2. has been done.

The ears 16 are connected to the free parts of the lateral edges of the sealing compartment screen 13 and are located between the upper edge of the sealing compartment screen 13 and the upper edge of the compartment screen 14.

The length of the ears 16 is preferably about ↓ the width of the sidewalls.

When the container is closed, the triangular compartments 6 are folded in the direction toward the center of the container at the same time as the rectangular compartments 4 are folded toward each other, creating a reverse fold connecting the compartments 4 and 6. A rotational motion is given to the screen 11.

In the fully closed position (FIG. 2), the compartment 4 lies horizontally and covers the compartments 11, 6, which are also horizontal.

After gluing the section screens 13, the seal formed by them and the section screen 14 folded between them is closed, so that the sealed section screen 13 with ears 16 becomes the opposite section screen without ears. 13 is folded into one of the horizontal rectangular sections 4.

After closing the packaging container and folding in the fins, the ears 16 are folded over the rim 7 of the container and are there quickly glued to the side walls 2 of the container.

Meanwhile, the sealing fins are kept in a folded horizontal position to maintain a flat top surface of the packaging container.

Figures 3-6 schematically show the upper part of sheet material for forming different embodiments of the packaging container described above, with mutually corresponding sectioning surfaces and folds being given the same reference numerals in all figures. ing.

Depending on the packaging container shown in Figures 1 and 2, and how the vertical seam is placed,
It can be made from a sheet stock according to FIG. 3 or from a sheet stock according to FIG.

From FIG. 3, for example, the dimensions and mutual positions of the different section planes mentioned with respect to FIG. 1 can be clearly seen.

It is further evident from the contour of the top edge that the anchoring ears 16 projecting laterally from the sealing area screen 13 extend into the recesses created by the entry and exit of the top edge.

In this way, the ear 16 detects the seal area screen 1 when inspecting the packaging container.
3. The upper parts of 3 are marked with a section from the material that must have been cut to allow for the necessary gluing to each other.

FIG. 3 also shows that there is no outward extension of the upper edge of the partition surface 13, which is important in reducing waste during the production of sheet stock from a roll of woven material.

The vertical partition planes, designated 17, are utilized to form longitudinal seams when forming the sheet into a cylindrical container body.

After folding, the sheet material according to FIG. 4 forms a container similar to the sheet material according to FIG. 3, apart from the position of the longitudinal joints.

The sheet material according to FIG.
Unlike the two sheet materials described above, this single ear is sufficient to force the sealing fin into a horizontal position in some cases.

The sheet material according to FIG. 6 has a sealing section 18 whose height corresponds to the height of the rectangular section and is therefore twice as high as the sealing section 13.

The two ears 19 adhering to the sealing area screen 18 are correspondingly higher than the previously mentioned sticking ears 16.

When this packaging sheet is folded into the packaging container according to the invention, a sealing fin is formed which is much larger than the previous sealing fin.

This sealing fin (or more precisely, the sealing compartment screen 18 which is inserted into the sealing fin) has such a size that, after being folded down onto the compartment screen 4, it completely covers it and extends to the very edge 5 of the packaging container. .

After closing the packaging container as in the previous embodiment, the ear 19
is glued to the folded down side wall 2.

In order to facilitate opening the container and tearing off the relatively wide sticking ears 19, it is appropriate to provide them with tear indicators 20.

Although this sheet stock design does involve greater waste during its manufacture, it results in a packaging that is particularly easy to open and very durable.

In all the containers or sheet materials mentioned above, the size of the compartments concerned may vary to a small extent or the shape of the folds may vary, irrespective of the function.

Such size variations will be based on, among other things, the width of the folds and the thickness of the material.

Thanks to the invention, a packaging container with a flat top surface is created, which container is well suited for overlapping or omitting protruding ears or the like which may be a nuisance.

The packaging container according to the present invention is easy for consumers to open and is unlikely to be accidentally opened during handling, even if consumers are reluctant to handle it.

[Brief explanation of drawings]

FIG. 1 is a view of the packaging container according to the present invention before closing, FIG. 2 is a view of the packaging container according to the present invention in a closed state, and FIGS. 3 to 6 are views showing preferred embodiments of the packaging container according to the present invention. Figure 3 shows a view of the upper portion of the unfolded sheet material for forming. Reference numerals in the attached figures are appended to corresponding parts described in the claims of the utility model registration.

Claims (1)

[Scope of utility model registration request] The packaging container is made of a single sheet material, and the material has four side walls 1 and 2 facing each other in pairs, a bottom, and when the contents are packed into the packaging container. The material is folded into a cylindrical container body with a top 3 designed as an opening intended to be closed, and the material is divided into several compartments divided by folds, i.e. a first pair of opposite side walls. 1 and having a width corresponding to the width of the side wall 1 and a height corresponding to half the width of the side wall 1; Two substantially isosceles triangular partitions 6 that are directly perpendicular to the pair 2 and have a base length corresponding to the width of the side wall 2, and equilateral side edges of the triangular partitions 6 that are arranged between them. 8 to the side edges 12 of the rectangular partition screen 4, and four partition screens 11 that fold in reverse, and the partition screen 1 that folds into the rectangular partition screen 4 and the railway.
The upper edges 10 and 9 of 1 are respectively connected to the lower edges of a pair of first sealed compartment screens 13 and a pair of second sealed compartment screens 14, and the first sealed compartment screens 13 and the second sealed compartment screens Ward screen 1
4 are mutually continuous, and the first sealed area screen 13
has a width corresponding to the width of the side walls 1 of the first pair, the second sealing section screen 14 has a width corresponding to the width of the side walls 2 of the other pair, and the rectangular section screens are mutually connected. The triangular partition screen 6 and the partition screen 1 that can be folded in the opposite direction at the same time
1 under the rectangular compartment screen 4 to form a sealing fin when the container is closed, the upper edge of the second sealing compartment screen 14 is above the first sealing compartment surface. 13, and from the left and right of the first sealing section screen 13, along the upper edge of the second sealing section screen 14, two ears 16 are integrally formed with the first sealing section screen 13. protrudes, and the glockenspiel 16 is inserted into the glockenspiel 16 for the purpose of holding the sealing fin in the folded position after the sealing fin is folded in so as to match the top in the closed position of the present packaging container.
6 is arranged so as to be glued to the other pair of side walls 2.