DE2108796A1 - Container with lid - Google Patents

Description

Albert Obrist & Co. , Reinach, Basel

Dalplast production

Container with a lid

This invention relates to a container with

Lid, which has a side wall that falls outside over the edge of the container with a circumferential weakening line that has the cover into a rest cover that can be used as a re-closure and one that can be torn off Divided end section, the latter gripping under a shoulder on the container outer wall.

Such containers are known, for example, from Swiss patent specification 538 * 369. The disadvantage of such containers lies in the lack of tightness of the closure.

The invention has for its object to be a one Guarantee device having, to create only two-part container with lid, without tools by hand is easy to open and has improved sealing properties, This means that the previously customary sealing film attached underneath the lid can be dispensed with. The sealing effect should be of the lid are retained in full after the end section serving as a guarantee device has been torn off.

02/16/71 ■ - * ■ ■ _/: - ^ ^ _m - 1 to 22,716 a

109840/1087

The stated aim thereby becomes the device of the invention achieves that the shoulder on the outer wall of the container forms the lower limit of a circumferential projection, which after at the top at a distance from the upper end of the container wall expires in a wedge shape and that the lid as a plug-in lid with a deepened Bottom is formed and the inner, protruding into the container side wall of the lid at least approximately in height of the projection has circumferential bulge that rests against the inner wall of the container, -wherein the lid with its The container wall is gripped by clamping on both side walls and the edge region of the container wall lying above the projection is held in the base of the recess of the circumferential, inverted U-shaped edge part of the lid.

In the following an embodiment of the Invention is described in more detail with reference to the drawings. Show it:

Fig. 1 is the front view of a container with aufgesetzem Lid, partially cut open,

Fig. 2 the same container in plan view,

3 shows, on a larger scale, a detail from FIG. 1, and

FIG. 4 shows, on a larger scale, another detail from FIG. 1.

The B4ia3 ter 1 shown in FIGS essentially has the shape of a parallelepiped shell stretched in the vertical direction, which is open at the "upper end and at the lower end." End is provided with a base plate. It is made of plastic. Its side walls are inclined downwards slightly inwards, so that its cross-sectional area below is slightly smaller than is up.

As FIG. 1 shows, a circumferential stacking rib 2 protrudes outward from its base plate in the vertical direction.

- 2 109840/1087

As FIG. 3 shows, the container 1 protrudes from the side wall at a distance from the upper, open end a projection 3 extending over the entire circumference to the outside. This one has that Profile of an almost right-angled, not isosceles triangle, which with its tip, which has an angle of about 15, follows above points. The upper, open end of the container 1 is closed by an insert cover 5, which is also made of plastic is.

As shown in FIGS. 1 and 4, the cover 5 has a recessed, flat base 7 and one that extends over its entire circumference extending, upstanding edge part 9, which essentially has the profile of an upside-down letter U with a circumferential recess 22 has. The lid 5 is therefore as a plug-in lid with a falling over the upper edge of the container 1, circumferential apron.

The inner U-leg has an outer end section 10 which is bent by about 30 ° in the direction of the middle of the lid and the end of which is connected to the lid base 7.

The inner U-leg is close to the end section 10 due to its wall thickness being reinforced in places towards the U-interior too fully booked. The apex of this convex bulge 11 is approximately at the level of the projection 3 of the container 1. The outer one U-legs 13, 14 are adapted on the inside to the shape of the projection 3 of the container 1. Below that ledge 3, a circumferential projection 18 protrudes inwards from the inside of the U-leg 1314, which serves as a backstop.

On the outside of the outer U-leg 13 »14 there is a circumferential notch 12 at the level of the projection 3, which is a circumferential weakening point 16 forms. The notch 12 divides the outer U-leg 13 »14 into a non-separable section 14 and a separable end section 13. As in FIGS

109840/1087

2, there is a pull tab at one point on the circumference of the latter 15 is provided, which cooperates with the notch 12.

From the U-base of the edge part S of the cover 5 one protrudes the entire circumference extending stacking rib 20 upwards, which also serves to stiffen the U-base. On two of each other Opposite sides of the cover cross-section also protrudes inwardly from the U-base, which is shown in FIG. 2 and U show. The thickness of this grip tab, which is essentially trapezoidal cross-section, tapers towards its outer end. The mode of action is as follows:

After the filling material has been filled, the one-piece cover 5 is snapped onto the open end of the container 1 without tilting.

First, the upper edge of the container 1 and then especially its projection 3 presses the projection 18 of the separable end section 13 of the edge part 9 to the outside. The end section 13 is hardly deformed, but only pivoted outwards; this swing out is due to the inherent elasticity of the material as well made possible by the shape of the weakening point 16, which acts like a spring-loaded hinge.

Shortly before the upper edge of the container 1 comes into contact with the U-base of the edge part 9, the projection 3 of the container engages 1 in its seat on the non-separable section 14. Direct thereafter, the outwardly pivoted separable section 13 of the second U-leg 13, IH of the cover 5 springs as a result of the elasticity of the material back to its original position. The projection 18 comes to lie under the projection 3 and thus locks the cover 5 against backflow and the pack against unauthorized opening. To remove the cover, the separable end section 13 torn off and what remains is a residual cover that can be removed. The rest of the lid can be reused as often as required.

When the rest of the cover is opened, the grip tab 21 acts with the inner U-leg together like an angle lever; at the upward

109840/108?

sr

pivoting of the grip tab 21 is the press fit caused by the bulge 11 of the inner U-leg in the relevant area loosened so that the container can more easily leave its seat at this point.

There is an advantage of the container with lid described in that the lid 5 is also in engagement with the outside 4 of the container 1, whereby the use of separate sealing means, such as sealing foils, becomes superfluous. In this way, the Cover and with relatively large manufacturing tolerances achieve such a strong clamping and pressing effect that the seal can be adapted to all practical requirements. This is particularly the case with rough mechanical stress, e.g. with Transport and handling of goods in self-service shops to Weight. A good seal is also in the case of specifically heavy, unhealthy, stain-forming and / or in the presence of air Perishable filling goods are of increased importance, especially if a larger supply pack is always only small Quantities can be withdrawn. Thanks to the fact that the edge region of the container wall lying above the projection in the The base of the recess 22 of the inverted U-shaped edge part is held, the tightness of the can in conjunction with the rest Containers aspiring features also cuboid containers with rectangular lids are kept perfectly tight.

Another advantage is the high reliability with which the projections 3, 18 lock the pack against unauthorized opening. It is practically impossible to release the locking engagement non-destructively and to open the pack closed by the bottler without actuating the tear-off tongue 15. Even rough actuation of the grip tab 21 only loosens the press fit in places, but has no influence on the locking effect of the projection 18.

- 5 -109840/1087

Claims (6)

Patent claims flj Container with lid, which has a side wall falling over the edge of the container with a circumferential weakening line which divides the lid into a residual lid that can be used as a post-closure and a tear-off end section, the latter engaging under a shoulder on the outer wall of the container, characterized in that the shoulder on the The outer wall of the container forms the lower limit of a circumferential projection (3) which tapers upwards at a distance from the upper end of the container wall and that the lid (5) is designed as a plug-in lid with a recessed bottom (7) and the inner, into the container (l ) protruding side wall (10) of the lid (5) has a circumferential bulge (11) which is at least approximately at the level of the projection (3 ) and rests against the container inner wall (4), the lid (6) with its two side walls the The container wall is clamped and the edge area of the container located above the projection (3) terwandung in the base of the recess (22) of the circumferential, inverted U-shaped edge part (9) of the lid is held. 2. Container according to claim 1, characterized in that the outer side wall of the cover (5) on its inside a recess substantially corresponding to the projection (3) having. 3. Container according to claim 1, characterized in that the container is essentially cuboid, wherein the lid is substantially rectangular. 109840/1087 4. Container according to claim 1, characterized in that the projection (3) at an angle of about 15 to the vertical runs out to the top. 5. Container according to claim 1, characterized in that from the U-base of the lid (5) at least one grip tab (21) protrudes inwards. 6. Container according to claim 1, characterized in that the container body and the lid are made of plastic. _ 7 A Π M Π 8 7