FI90226B - Container of type or beaker type with associated lid - Google Patents

Description

1 90226

BUCKET OR CONTAINER CONTAINER WITH LID FITTED

The present invention relates to a container fitted with a lid as set out in the preamble of claim 1. Such containers with lids are known in many different shapes and for many different applications. A common application is a sales container that can be resealed.

When manufacturing containers fitted with lids 10, attention must be paid to the quality of the products to be packaged in the container, the material from which the container is to be made and the way in which the packaged product is to be marketed, i.e. whether the product in question is sold directly to the consumer, 15 eg paint, or whether the product in question is intended for industrial use, eg chemicals sold for reprocessing. In addition, of course, attention must be paid to the price, appearance, durability, etc. of the container. Therefore, a large number of bucket-20 or container-like containers are known, especially those made of plastic or metal.

U.S. Pat. 4 619 373 is known a container with a ring insert which is arranged to engage with one or more of the annular rib, the ribs 25 which extend around the interior of the container. In order for the ring insert to be inserted, the wall of the container ‘1 must be heated enough to be soft or flexible, or the cover can be installed immediately after the manufacturing process while the temperature of the material is still high. This is partly due to the fact that the annular thickenings have a rectangular cross-section and partly due to the solid nature of the annular. To ensure acceptable tightness between the ring liner and the tank wall, the ring liner is provided with a ren-35 gas rod with a flange located at the upper end of the tank edge.

The object of the present invention is to provide 2 90226 cylindrical containers with a lid shaped so that it can be made of plastic by a fairly simple molding process, e.g. by injection molding, and whose parts are shaped so that they can be assembled at any time in a very large to provide a seal between the ring and the tank without the use of glue, welding, etc. In addition, it is desirable that the outside of the container (cylindrical part) be smooth and even without any deterioration in strength, rigidity and tightness relative to known containers with lids.

This is achieved by manufacturing a container with a lid fitted to it in accordance with the invention as described in more detail and described in claim 1.

Due to its special shape, the annular sieve, which is also made of plastic by injection molding, has a very high stiffening effect on the opening of the container, so that the container can be made very thin-walled and still retain its strength. In addition, the sloping edges of the ring give the tank good pouring properties so that the liquid easily flows back into the tank when the tank is stopped pouring. Since the upper edge of the container does not have any part 25 in the closure itself, the edge can be freely shaped so that it can be provided with, for example, a sharp pouring edge, thus reducing or completely eliminating the tendency of the contents to run outside the container. The annular design according to claim 1 30 further makes it possible to provide a snap effect between the annular and the annular thickenings of the container wall, and the thickenings can be arranged at a distance less than the distance between the annular parts so that these annular parts 35 are compressed between the annulars. This increases both tightness and strength. The two annular thickenings need not be greater than that the 90226 container can be injected into the mold over the mold core in the normal manner, only by ensuring that the plastic material used is flexible enough to pull the container away from the mold core. This has not practically added any problems.

The upper surface inclined to the ring also provides space for using the opening tool so that the lid can be easily lifted off, and is also a great help when the lid is put back as it guides the lid 10 into place in the container.

The annularly inclined surface facing the bottom of the container ensures a smooth transition to the wall and the lower annular thickening and thus reduces the tendency of the liquid content to splash over, e.g. when filling the container 15.

By manufacturing a container with a lid according to the invention as described in claim 2, a smooth and smooth transition is provided between the annular and the inner wall of the container so that the contents of the container 20 do not readily settle in the displacements. At the same time, the insertion into the ring is made easier because the thickenings can be formed in such a way that it is only necessary to press the ring insert past the upper annular thickening, after which it is firmly pressed between the two thickenings.

By manufacturing a container with a lid according to the invention as described in claim 3, the possibility of double sealing between the lid and the ring is provided, which is important if the container is to be used for products that need to be hermetically sealed, e.g. paints, hazardous liquids and the like.

By manufacturing the lid according to the invention in the manner shown and described in claim 4, it is possible that the upper side of the lid can be quite flat and flat, since the closing means are arranged on one side of the lid and at a distance of 4 90226 from the edge of the lid. The skirt can be formed in such a way that it is prestressed in the annular core, which provides a good seal, while the cover can still be easily removed by lifting with a suitable tool 5, after which the cover easily comes off.

If the lid is manufactured according to the invention as shown and described in claim 5, two annular sealing areas are provided, and yet the lid can still be easily snapped closed. The sealing is performed by introducing the sealing areas of the lid into a snap connection with the annular sealing areas, and this is done in such a way that it can be ensured that the lid is properly closed.

By making a container with a lid according to the invention, as shown and described in claim 6, it is provided that the edge of the lid is on or near the edge of the container. The result achieved by this is that any possible pressure that compresses the lid, e.g. one caused by stacked containers, is retained on the wall of the container so that the sealing function is not affected. The lid and the container can furthermore be arranged so that the upper side of the lid is completely flush with the upper edge of the container.

By manufacturing the lid according to the invention as shown and described in claim 7, the lid can be provided with a pinch proof arrangement, and thus it can always be ascertained whether the lid has been removed after the container has been filled with its contents. There is also a prominent mark where the opening tool should be placed to remove the cover. The lid can, of course, be removed by inserting a sharp or tapered tool between the lid and the edge of the container, but without leaving obvious marks.

In addition, according to the invention, the container with the lid is protected from access by children, because the lid is so tightly inside the ring that it is always necessary to use a tool to open the container.

By making a container with a lid according to the invention as claimed and described in claim 8, an additional possibility is finally provided, after the container has been filled and the lid is placed on, for welding or gluing a film which ensures absolute waterproof and airtight sealing of the contents, and said film 10 also provides an additional guarantee that the package is unopened.

The invention will now be described in more detail with reference to the drawing, which shows two embodiments of the invention, in which

Figure 1 shows the upper part 15 of a container with a lid according to a first embodiment, partly in side and partly in cross-section;

Figure 2 shows the lid only, seen from below and on a reduced scale;

Figure 3 shows a container 20 as in Figure 1 with a lid, but seen from above and on a reduced scale;

Figure 4 shows a cross-section similar to Figure 1, but on an enlarged scale; and

Fig. 5 shows a container with a lid, a film and a dust cover according to another embodiment, and a view in which the structure is disassembled.

Figures 1 and 2 show the upper part of a container 1 with a lid 2, where the container is a cylindrical container with a circular cross-section and a diameter 30 of the top and bottom as far as the casting of the container allows, if any. cast together with the base with a normal casting core.

The base is not shown in the drawing because it can be shaped in many different ways.

4 the upper third of the container wall is provided with at least one, but preferably two inside 6 90 226 Lisella annular rib 5 and 6. The protuberances have a limited height above the inner wall side and that they are arranged in the wall of the upper third of the container in pulling out of the mandrel 5 will not have any problems, provided only that the extrudate is slightly elastic. The thickeners 5 and 6 have inclined side edges 8 and 9 facing the bottom of the container and forming an angle of about 30 to 60 degrees with respect to the wall 4, which contributes to the easy removal of the casting core 10 or core after compression molding.

The upper thickening 5 also has an upwardly directed inclined interface 7 and the upper part of the thickening is substantially planar so that the upper thickening has a cross-section which is trapezoidal or possibly equilateral trapezoidal. The lower thickening 6 has an interface 11 which is substantially at right angles to the wall 4, and the upper part of this thickening has a planar surface 10 which is almost parallel to the wall 4.

The container 4 is supplemented by the installation of an annular core 3 with a central part, the two annular parts formed thereby extending towards the edges of the container wall 4, namely the upper annular part 12 and the lower annular part 13, each with a rectilinear profile partially surrounding the annular recess. 25, the diameter of said recess 25 increasing as it goes in the direction of the wall 4, see Fig. 4. In the annular ring 3 both parts 12 and 13 facing the wall have annular profile edges corresponding to the cross-section of the bosses 5 and 6 so that the annular insert can be pressed down into the container and snaps into place as shown in the figure, after which the ring insert rests motionlessly and tightly against the wall 4 35. The outer diameter of the annular ring 3 is slightly oversized relative to the inner odor of the container 4, so that under pressure the annular insert settles firmly and forms a seal against the container wall 4.

The annular core has a central opening formed so as to have two annular and substantially vertical cylindrical sealing surfaces 15 and 24, one of which is staggered to form two annular sealing surfaces, the upper surface 24 having a smaller diameter than the lower surface 15.

The cover 2 comprises a flat annular part and 10 together with it an annular and concentric skirt 16 having a smaller diameter than the annular part. The flange 16 is at a substantially right angle to the flat part and furthest from said flat part, it has a flange 26 having a slightly larger diameter than the flange 16 itself, which is arranged to engage the snap connection with the ring 3. The flange 16 has two annular sealing surfaces 14 and 17 so that when in place, the cover has a double seal against the ring insert 20, which, as described above, has a double seal against the wall 4. Between the two sealing areas 14, 24 and 15, 17 there is an annular recess 18 for smoothing the tolerances and thus allowing the flange and at the same time the cover to move slightly vertically with respect to the annular 25 without losing the sealing function.

The lid 2 rests on the upper thickening 5 of the container wall 4, whereby the annular inclined edge 19 of the lid rests on the inclined interface 7 30 of the thickening 5. In this way, it is made possible to form a container 1 with a lid 2 as shown in Figures 1 and 4, i. in such a way that the wall 20 has four edge tasapin-direction with the top side of the cover 2.

The lid is opened by lifting the edge of the lid with a suitable tool, eg a screwdriver. For this purpose, an area 21 is provided which is thinned and which can be punctured to open the lid. The thinning 21 is preferably made on the upper side of the lid, as shown in Figure 3. The thinned area 21 is formed outside the flange 16 of the cover and thus has no effect on the sealing function and can be formed 5 as shown in Fig. 4 so that the user receives immediate assistance and direction to use the opening tool correctly. Between the cover 2 and the upper part 12 of the annular ring 3 there is an annular space with a cross-section which is substantially triangular and thus offers plenty of space 10 for using the opening tool.

In another exemplary embodiment, as shown in Figure 5, ring insert 3 is disposed in such a manner that the container 1 'of the upper edge 20' is slightly raised above the lid 2 on the upper side and thereby possibly 15 by welding or gluing VED film 22, preferably of surface-treated aluminum foil, in a known way to the edge 20 ', in which way an airtight seal is ensured. The film 22 may be used to protect the dust cover 23, which is a friction or press fit the outer side of the container 20 with the lid 4 can be attached to and over the film.

Claims (8)

1. The container (1) of the container or vessel type and the lid (2), adapted thereto, is arranged to adhere tightly to the inner side of the container wall (4) in the proximity of the container opening in such a manner that on the inner side of the upper part of the container. a third is mounted and supported by a ring insert (3), the outer edge or edges of which are in sealing contact with two parallel annular beads 10 (5, 6), which are formed in one with the inner wall of the container, and the ring insert (3). ) central opening has at least one sealing surface (24, 15) which is arranged to engage sealing and reading with an annular skirt (16), which is on the lower side of the lid (2), characterized in that the ring insert (3) central aperture comprises a central portion, from which two annular rectangular portions (12, 13) extend towards the beads (5, 6) of the bc-retaining wall (4) and thus define an intermediate recess (25) whose intersection 20 grows in the direction against the container wall (4) on p in such a way that the outer surfaces of the ring portions (12, 13) of the ring insert form a blunt angle with the container wall's pia. 2. Container according to claim 1, characterized in that an upturned annular interface (7) on the upper bead (5) and a downturned annular interface (9) on the lower bead (6) form an angle , varying from 0 to 90 degrees, with the container wall (4), and they are designed to provide a smooth transition from the ring insert (3) to the inner wall 30 (4). Container with a lid according to claim 1 or 2, characterized in that the central opening of the ring insert (3) is formed with two annular sealing surfaces (24, 15) which are arranged in relation to each other in relation to one another. A container with a lid according to claim 1, characterized in that the lid (2) comprises a substantially flat circular disc and one in a concentric skirt (16) formed therewith having a diameter less than the flat skis. and said skirt is designed in such a way that it can be formed in tight snap engagement at least one location with the central opening of the ring insert (3). 5. A container with a lid according to claim 3 or 4, characterized in that the skirt (16) is formed with an annular flange (26) having a larger diameter than the skirt itself, and said flange has a sealing surface (17) for sealing against one of the sealing surface (15) of the ring insert (3), and that the skirt (16) between the flange (26) and the disc part has an annular extra sealing surface (14) for sealing against the other sealing surface (24) of the ring insert. A container with a lid according to claim 1 or 2, characterized in that the upper bead (5) of the container wall has an upturned annular interface (7), on which the edge (19) of the lid (2) is positioned. .ex. by means of a downwardly facing edge having an inclined annular interface (19) relative to the plane of the lid. A container with a lid as claimed in claims 1 to 6, characterized in that a defined area (21) is thinned in the lid (2) in an annular region between the edge and the skirt or at the edge. the purpose is that it can be broken through. 8. A container with a lid as claimed in claims 30 to 7, characterized in that the upper bead (5) is arranged at such a distance from the edge of the container (20 ') that when the lid is properly fitted (Fig. 5 ), the upper portion of the edge is above the plane of the lid (2), and said edge (20 ') is arranged for attaching a film (22).