DE2300759A1 - CONTAINER WITH LID - Google Patents

Description

Koninklijke Emballage Industrie Van Leer B.V. Amstelveen, Netherlands

Container with a lid

The invention relates to a container with a lid, both of which are made of plastic, the lid with a a narrow recess-forming lid edge engages over the upper edge of the container open at the top and the outer part of the lid rim is held on the outer wall of the container.

Containers of this type are well known. They often have a cup-shaped shape so that they can be easily plugged into one another to be able to 'when they are empty. The lids are held on the containers in a number of ways. For example there is a strap that can be tightened to hold a lid on a container. Another known one Lid attachment a metal ring is used, which engages the outer part of the lid rim. The inside edge the metal ring is provided with lip-like sections,

309829/0457 OR ₁ QINAL ₁ NSPEOTEb

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which can be bent inwards. The aforementioned tightening strap can easily be lost and is no guarantee of any unauthorized removal of the contents of the container. On the other hand, special tools are not only used to close the aforementioned metal, ring, but also required to open it.

In the case of the containers of the type mentioned, the closure construction must deformable, e.g. if the container falls, bulges or is crushed. Here you have the Container as with the closure only the sealing function of the sealing ring or the sealing material between the lid and attention paid to the upper edge of the container.

However, experience with such containers has shown that the tightness of the closures during normal transport and storage conditions cannot be ensured.

The object of the invention is therefore to provide a container of the type mentioned at the outset, on which a lid in a simple manner can be attached tightly, the disadvantages of the known container closures are avoided.

The object is solved by the invention ₃ that the outer part of the lid rim having at the periphery orifices which engage over substantially radially outwardly extending projections on the upper container edge and the outer part in the radial direction durch.eine amplification or the like on each projection, and in axial direction is held by the projections themselves.

In this way, a closure is obtained that all normal stresses on a container of the aforementioned Art has grown and which can be easily implemented in various designs.

The container closure according to the invention is also liquid-tight, because it is necessary to place the lid on the associated

309829/0457

rigen container is necessary to exert pressure on the lid in the axial direction so that the openings in the lid edge can reach over the corresponding protrusions on the container. Here, the seal between the cover and the upper edge of the container is pressed together, thereby ensuring a leak-free closure Metal ring is no longer needed. In contrast, various tools can be used to the invention Open container. For example, the head parts of the projections cut off the lid on the container to hold the plague with a hot knife. Furthermore, the lid according to an embodiment of the invention, a tear tape or the like, which is immediately above the openings or at a distance from them in the outer part the edge of the lid runs. There is also the option of cutting free the lid with a cutting tool that can be cut into the further registration with the title

"Container with plastic lid and tool to open the container",

registered (registered by the person registering the registration in question on the same day as this) and described in more detail is.

As a result, the cover can be completely removed in a simple manner or only partially removed from the container. If only part of the content is required, the lid can be used again to seal the container. In addition, the container remains connected to the edge of the lid remains, reinforced by the edge of the lid. When the free ends of the tear tape are between two adjacent projections or between projections with one or a few projections between them on the container downwards over the Cover edge extend out and the cover edge has been torn open with the tear tape, a part of the cover edge remains in communication with the container to form a hinge-like connection.

309829/0457 - "-".

The projections on the container can each contain reinforced parts from the outset. The e.g. punched out openings in the outer part of the container edge are reinforced when the lid is placed on the container Parts of the protrusions crouched. The openings are designed in such a way that they overlie the reinforced parts the elastic properties of the lid material snap, so that the lid edge between the outer wall of the container and the reinforced parts is retained by the projections. This push-button attachment between the cover and Container can advantageously be made when the thermoplastic material is relatively cold to thereby to be able to achieve a particularly secure lid holder.

The reinforced part of the projections can each along the Top and protrude flange-like along the two adjoining sides of the projections. Such training the protrusion favors the snap fastener and allows the container to be manufactured in a shape from which he himself is released.

According to the invention it is also possible to use the reinforced parts to get the projections on the container by the action of heat and pressure after the outer edge of the lid over the The container edge has been turned over and the projections protrude through the openings in the container edge. When using Heat and pressure can easily push the ends of the projections apart like a rivet head, with the lid edge is firmly clamped between the head parts and the outer container wall.

The invention is based on preferred exemplary embodiments explained in more detail with reference to drawings.

In the drawings shows:

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Fig. 1 is a side view of the upper part of an inventive Container, partially cut;

Fig. 2 is a plan view of the container of Fig. 1;

3 shows a section in the axial direction through the upper one Edge of the unsealed container on an enlarged scale;

Fig. 4 is a plan view of a protrusion on the top Container rim;

FIG. 5 shows an end view of the projection according to FIG. 4;

6 shows a side view of a modified embodiment according to the invention without a cover;

Fig. 7 is a partial plan view of the container rim according to Fig. 6;

8 shows a section in the axial direction through the upper edge of the container according to FIGS. 6 and 7 with a Lid in an unsecured position;

9 shows a section corresponding to FIG. 8 with the cover in the closed position, which is against radial open is not yet secured;

10 shows a section corresponding to FIG. 9 * in the Cover is secured against radial opening;

11 shows a section through the upper edge of the lid the lines XI-XI in Figure 12, one end of the tear tape being visible;

Fig. 12 is a view of part of the upper edge of the container, where the two ends of the tear tape are located.

309829/0457 ° ~ ^INSPECTH> - 6 -

The one in Pig. The container 1 according to the invention shown in FIGS. 1 and 2 has a large number along its upper edge of the container by specially trained. Projections 2 on. The cover 3 has a narrow recess (slot) forming lid edge provided, the over-the upper edge of the container engages. The outer part of the lid edge is provided with a large number of openings. The number and the distance the openings correspond to the number of projections. The openings are of such a size that the free Ends of the projections can be pushed through the openings. In the embodiment according to the Pig. I to the projections are advantageously designed in such a way that the openings in the outer part of the lid are snap-activated get over the front ends of the projections when the outer part of the lid edge with the openings against the jump is pressed.

In Fig. 3, the upper edge of the container of the container 1 is shown on an enlarged scale in section. It is clear from FIGS. 3, 3 and 5 that the projections have a flange or reinforced sections at their front ends, which in each case extend only along the upper and the subsequent lateral edges of the projections. The reinforced sections are denoted by 5. The openings in the outer part of the lid edge are designed like a tunnel and each fit over the neck 6 of the projections, which have the same cross section. The projections are beveled at their lower edges at 7. The strength of the outer part of the lid edge corresponds to the length of the neck 6, which extends between the outer container wall and the inner edge of the flange or reinforced part 5.

In addition, the end of each protrusion is beveled Edges 8 provided that the orientation of the openings opposite make the protrusions and slide onto the protrusions easier .

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In Pig. 2 it becomes clear that with the large number of projections a particularly strong connection between the cover and the container can be obtained. In the exemplary embodiment shown, the container is sealed in a known manner, namely a sealing body is located between the top edge of the container and the bottom of the narrow recess in the lid rim.

The container 10 in Figs. 6 and 7 has a cup or bucket-shaped shape and contains a at its upper edge Number of projections spaced below the outermost container edge line. The projections 12 have the same distance from each other and are located on the circumference of the upper edge of the container.

8 shows the upper container edge 13 of the container 10 with a protrusion 12 on an enlarged scale. In addition, the lid edge 14 of the lid 15 is shown. Of the Lid edge I ^ has an outer part 16 with openings 17 is provided, the number of which corresponds to the number of projections 12. The outer cover part 16 is located in Fig. 8 in an unsecured position in which he is lightly on the top of the container together with the Sealing element 18 can be brought without the projections 12 acting on the edge.

The tight lid closure is by inwardly pressing the outer part 16 in the position of FIG. 9 and then by Applying heat and pressure to the ends of the projections 12 is achieved, these ends becoming wider Head obtained, as shown in Fig. 10. The outer part of the lid edge pushed onto the projections is with. a tear strip 20 is provided, which by melting in the thermoplastic material of which the lid is made, is embedded. In Figs. 11 and 12 it is shown that the ends of the tear strip are located between two adjacent projections

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ORIGINAL INSPECTED

vertically downwards over the outer edge of the outer lid edge part 16 extend beyond.

When the tear tape is pulled, the lid is above the protrusions with the exception of the section between the two adjacent before jumps in Fig. ' 12 cut through.

Expectations

- 9 309829/0457

Claims (4)

A η s ρ r ü before: Containers with a lid, both of which are made of plastic, with the lid forming a narrow recess Lid edge grips over the upper container edge of the container open at the top and the outer part of the lid edge is held on the outer wall of the container, characterized in that the outer part (4, 16) of the lid edge has openings (17) on the circumference, which are essentially radially outward extending projections (2, 12) grip the upper edge of the container and the outer part in the radial direction held by a reinforcement or the like on each protrusion and in the axial direction by the protrusions themselves is" 2. Container according to claim 1, characterized in that the reinforcement on each projection (2) as a flange-like elevation (5) is formed, each at the top and the two adjoining side edges of a Projection is located. 3. Container according to claim 1, characterized in that the reinforcement on each projection (12) is one by the action of heat rivet-like formed after the outer lid edge part (16) has been slipped over the projections (12) Represents head part (19). 4. Container according to one or more of the preceding claims, characterized in that the cover (15) contains a tear-open tape (20) or the like which essentially above the openings (17) in the outer lid edge part (16) runs. - 10 30982 9/0457 5 * Container according to claim 4, characterized in that the free ends of the tear tape (20) are between two adjacent projections or between two projections with one or a few protrusions between them downwards over the outer lid edge part (16) extend beyond. 309 829/04 57 OBIQWAL inspect »