FI90406C - Container - Google Patents

Abstract

A container particularly suited for the storage of granular plastic raw material. The container has an octagonal or cylindrical shell section (1) that advantageously surrounds a plastic bag (9). The shell section (1) consists of liners and fluting carbdoard layers placed between them. The top edge of the shell section (1) is provided with a flexible brimming edge (8) made of one of the liners, the said brimming edge making it possible to fill the container to the brim, but when the container is closed and pressures act upon the lid (7) of the container following the compacting of the granular material in the plastic bag (9), the brimming edge (8) crumples.

Description

90406

Container

The invention relates to a container, in particular a container suitable for storing granular plastic raw material, which preferably has a jacket part forming a polygonal prism surrounding the plastic bag. The jacket part consists of liners and a layer of corrugated board (fluting) arranged between them. The container also includes a separate bottom and lid part.

10

When containers are used to store granular plastic raw material, a plastic bag is placed inside them, into which the raw material is filled mechanically. because the plastic raw material contains pentane gas, which is intended to be prevented from entering the environment during storage. When the granular plastic raw material is put into circulation after filling, e.g. when installing the lid or moving the filled container, the plastic raw material condenses in the container. In this case, the lid of the container should be able to be pushed down to the corresponding amount, so that the lid rests at all times on the plastic raw material in the container and not on the edge of the container shell. In transport and storage, the filled containers are placed on top of each other, whereby the lid of the lower container is subjected to the weight of the upper 25 containers. The edge of the container shell part cannot withstand such a weight nor the container lid part which remains inside the edges of the container, but the weight from the container lid should be applied to the granules of the plastic raw material and further to the largest possible area of the container shell.

Achieving the above-mentioned goals requires that the container jacket has some structure with which the jacket can be raised in the height direction to fill the hut so that the container can be filled on the hill and shrink in height upwards after the lid is installed according to the plastic raw material depression.

2 90406

The above-mentioned problem has been solved in known containers, for example, by using a separate cuff to be mounted on the top of the container part in addition to the actual shell part of the container. Small hooks are formed in the casing part, on which the cuff 5 rests so that the upper edge of the cuff divides the container above the upper edge of the casing part and forms a pile edge for the time of filling. When the container is filled and a lid is placed on it, to which a force acting from the top is applied, the hooks holding the cuff give up and the cuff slides down along the jacket to the required amount.

Such known solutions use either two separate cuffs, one located at the top of the jacket and acting as said elastic part and the other located at the bottom of the jacket and acting closest to the jacket reinforcement. A cuff of the same height as the diaper has also been worn. When cuffs are used, the strength of the sheath is dimensioned so that it, together with the cuffs, withstands the international drop test. An international drop test is performed in such a way that a full-blue container is dropped from a height of 0.8 m, in which case the shell structures of the container may be damaged, but the contents of the container shall not be spread out of the container.

25

A problem with such known solutions is the need for a separate cuff, which naturally complicates the use of the container as well as the manufacture of the container.

Instead, the container according to the invention is easy to manufacture and use. It has a flexible pile edge formed from one liner at the top of the jacket part. This hump edge allows the plastic bag receiving the plastic raw material inside the container to be filled onto the hill above the actual height of the jacket. This, in turn, is necessary so that the top surface of the plastic raw material in granular form in the container does not fall below the level of the top of the casing after settling, so that the weight of the next container placed on the top of the container does not apply to the bottom of the bottom. Such a container is, of course, suitable for storing any granular material.

In the container according to the invention, the liner forming the outer surface of the casing part is preferably reinforced with a plastic mesh in order to withstand the above-mentioned international drop-10 test. The plastic mesh reinforcement can, of course, be in any liner or even in several liners, if the application so requires.

The casing of the container according to the invention is manufactured from a substantially rectangular part by parallel grooves divided into sections of equal size and from the fastening overhang. The blank preferably has an inner liner and an outer liner, and between them two layers of corrugated board separated by a central liner. The outer liner of the blank 20, which forms the inner liner of the blanket in the finished container shell, is wider than the other layers of the blank, the portion of the wider liner extending over the other layers of the blank forming a flexible pile edge of the container shell. Cardboard and cardboard in particular are suitable as blank materials, but other similar materials may also be considered. There may also be more layers and corrugated layers than those mentioned above, if the need so requires.

The invention will now be described with reference to a preferred embodiment shown in the accompanying drawing, in which FIG. 1 shows a known container 35 with two cuffs, FIG. 2 shows a known container with one cuff, 440406. Fig. 3 shows a container according to the invention and Figs. 4 shows a blank of a container according to the invention.

The known container of Figure 1 has two cuffs 2, 3 outside the octagonal sheath 1, of which the upper cuff 2 is shown in the position in which it rests on the protrusions 4, 5 in the sheath 1 of the container. Figure 1 also shows the octagonal bottom part 6 of the container, which is located inside the casing 1 of the container. The octagonal lid part 7 of the container is located outside the upper cuff 2. When the lid 7 is mounted on top of the container and pressed down 15, it also presses down on the upper cuff 2, since the projections 4, 5 are made in such a way that they give up. The plastic bag in the container is marked with reference number 9.

The known container of Fig. 2 corresponds to the container of Fig. 1, except that only one cuff 2 of substantially the height of the jacket 1 is used in the container of Fig. 2.

The container according to the invention in Fig. 3 has a flexible pile edge 8 formed on the upper edge of the container casing 1, which 25 replaces the use of cuffs. In addition, in the container according to the invention, the liner remaining outer in the finished container is reinforced with a plastic net so that the container passes the international drop test. The octagonal bottom and 6 of the container also settle on the inside of the container shell 1 and the octagonal lid 7 is guided into the container shell part 1. Since the hump edge 8 consists of a simple Laine, its rigidity is sufficient to support it placed on top of the container, the pile edge 8 easily wrinkles under the lid 7.

The container according to the invention is preferably formed by the I!

Claims (6)

A container, in particular a container suitable for storing granular plastic raw material, preferably having a polygonal prism-forming jacket part (1) surrounding the plastic jacket (9), consisting of liners and corrugated board layers (flutin-gs) arranged between them, as well as a bottom part (6) and a lid part (7) arranged in the jacket part, characterized in that a flexible mound edge (8) formed of at least one liner is arranged at the top edge of the jacket part (1). . Container according to Claim 1, characterized in that the pile edge (8) is formed by a liner forming the inner surface of the container casing (1). 6 90406 Container according to Claim 1, characterized in that at least one of the liners of the jacket part (1) is reinforced with a plastic net. Container according to Claim 3, characterized in that the liner forming the outer surface of the container casing part (1) is reinforced with a plastic mesh. A blank for making a container casing according to claim 1, consisting of a substantially rectangular portion divided into parallel sub-fields (10) by parallel grooves and a fastening joint (11), the blank preferably having an inner surface liner and an outer surface forming liner. liner and between them there are two layers of corrugated board separated by a central liner, characterized in that at least one liner is wider than the other board layers of the blank by at least one pile edge (8). 5 90406, wherein at this stage the liner as an outer liner is wider than other liners. In a collapsed container jacket, the outer liner, which is wider than this, becomes a liner inside the jacket 5, which forms a flexible pile edge 8 of the container. The connection is preferably made with glue and ni-10 tom hooks. The container jacket can thus be kept flat during transport and storage to save space. In this case, the casing is only opened into an octagonal shape during the filling phase, while the base 6 and the plastic bag 9 are installed on it. Preform according to Claim 5, characterized in that the liner forming the outer surface of the preform is wider than the other cardboard layers of the preform (8). 25 Patenkrav: