FI90226C - Container of type or beaker type with associated lid - Google Patents

Description

1 90226

BUCKET AND DISHES WITH A LID

The present invention relates to a container fitted with a lid as set out in the preamble of claim 1. Such silos 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 with lids 10 fitted, 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 further processing. 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 såilio with a ring insert, which is jårjestetty kiinnittymåån with one or more of the annular rib, which ribs 25 extend såilion sisåpuolen ympåri. In order for the ring insert to be pushed in, the wall of the container '1 must be heated to such an extent that it is soft or flexible, or the cover can be installed immediately after the manufacturing process when 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 to the annular solid nature. To ensure acceptable tightness between the annular and the silo wall, the annular is equipped with a ren-35 gas rod with a flange located at the top of the edge of the silo.

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

This is achieved by preparing a silo with a lid fitted in accordance with the invention, as described in more detail and described in claim 1.

Due to its special shape, the ring gusset, which is also made of plastic by injection molding, has a very high stiffening effect on the opening of the container, so that the containers can be made very thin-walled and still retain their 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 stops pouring. Since the upper edge of the container does not have any 25 parts in the closure itself, the edge can be freely shaped so that it can, for example, be provided with a sharp pouring edge, thus reducing or completely eliminating the tendency of the contents to run along the outside of the container. The annular design according to claim 1 further allows to provide a snap effect between the annular bosses of the annular beam and the silicon wall, and the bumps can be arranged at a distance less than the distance between the annular parts so that the annular portions 35 are compressed. This adds both tightening and strength. The two annular thickenings need not be greater than that the 90226 can can be injected into the mold in the normal manner of the casting core, only by ensuring that the plastic material used is flexible enough to pull the canister out of the casting core. This has not added any problems in 5 uses.

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 sloping surface, which is depressed to the bottom of the silo, ensures a smooth transition to the wall and the annular thickening of the lower head and thus reduces the tendency of the liquid-like sisal to splash over, e.g.

By producing a container with a lid according to the invention as described in claim 2, a smooth and smooth transition between the annular and the inner walls of the container is provided so that the contents of the container 20 do not easily settle firmly in the transitions. At the same time, the insertion into the ring is made easier, because the thickenings can be formed by simply pressing the ring insert past the upper annular thickening, after which it is firmly compressed between the two thickenings.

By making 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. for paints and hazardous liquids. responsible.

By manufacturing the lid according to the invention as 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 4,902,26 from the edge of the lid. The skirt can be formed in such a way that it is prestressed inside the ring, 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 carried out by inserting the sealing areas of the lid into a snap connection with the sealing areas, and this is done in such a way that it can be ensured that the lid is properly closed.

By making a silo 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 silo. The result reached by the trough is that any possible pressure which compresses the lid, e.g. from each other due to the stacked silos, is kept on the wall of the silo so that the sealing function is not affected. In addition, the lid and the silo can be arranged so that the other side of the lid is exactly flush with the upper edge of the 25 silos.

By manufacturing the lid according to the invention as shown and described in claim 7, the lid can be provided with a button-proof arrangement, and thus it can always be ascertained whether the lid has been removed after the contents of the container have been filled. There is also a visible mark here where the opening tool should be placed to remove the cover. The lid can, of course, be removed by pushing a sharp or tapered tool between the lid and the edge of the container, but this does not leave any obvious marks.

In addition, according to the invention, a container with a 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 described in claim 8 and 5, an additional possibility is finally provided, after the container has been filled and the lid is placed on top, for welding or gluing the film on which the film guarantees absolute water content. and airtight sealing, 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 a top-15 part of a container with a lid according to a first embodiment, partly in side and partly in cross-section;

Figure 2 shows only the lid, 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 polysor 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, in which the container is a cylindrical container with a circular cross-section and a diameter of the top and bottom 30 as similar to the casting of the container as possible, 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.

Såilion wall 4 of the upper third is provided with at least yhdellå-tu, but preferably two sisåpuo- 6 90 226 Lisella annular bead 5 and 6 of the thick-twists are a limited height of the wall sisåpuolen ylåpuolella and because they are jårjestetty the upper third of the wall, såilion vatåmisesså 5 is not off valusydåmeltå no problem, as long as the extrudate is a little flexible. The thickeners 5 and 6 have inclined side edges 8 and 9 which face the bottom of the container and form 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 15 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, from which two annular parts formed thereby extend towards the edges of the silicon wall 4, namely the upper annular part 12 and the lower annular part 13, each having a rectilinear profile partially encircled. an annular recess 25, the diameter of said recess 25 increasing as it goes in the direction of the wall 4, see Fig. 4. The annular recess 3, both parts 12 and 13 facing the wall, have 30 annular profile edges corresponding to the cross-section of the thick lifts 5 and 6 so that the annular can be pressed down into the container and snapped into place as shown in the figure, after which the tire insert rests immovably and tightly against the wall 4 35. The outer diameter of the annular ring 3 is slightly oversized with respect to the inner diameter of the silo 4 so that under pressure the annular core settles firmly and forms a seal against the silicon wall 4.

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

The cover 2 comprises a flat annular part and 10 together with it an annular and concentric flange 16 having a smaller diameter than the annular part. The flange 16 is substantially at right angles to the flat part and furthest from said flat part, it has a flange 26 having a diameter at least 15 larger than the flange 16 itself, which is arranged to engage its 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 set 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 silo 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 silo 1 with a lid 2 as shown in Figures 1 and 4, i. in such a way and working edge 20 of the wall 4 is tasapin-direction with the cover 2 påålipuolen.

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 indiscriminate 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 toteutusesimerkisså, as shown in Figure 5, ring insert 3 is disposed in such a manner that the container 1 'at the top edge 20' is increased våhan cover 2 påålipuolen ylåpuolelle, thereby welding or bonding the potentially-15 VED film 22, preferably of surface-treated aluminum foil, a known in a way to the edge 20 ', in which way an airtight seal is ensured. The film 22 can protect the kåyttåå polykantta 23, a friction or interference fit outside of the tank-20 side may be 4 with its lid and the membrane kiinnittåå påålle.

Claims (8)

9 90226 PATENT CLAIMS A bucket or container-like container (1) and a lid (2) fitted thereto, arranged to be tightly attached to the inside of the container wall (4) by an opening in the container A container according to claim 1, characterized in that the upwardly directed annular interface (7) of the upper thickening (5) and the annular interface (9) of the downwardly directed lower thickening (6) form an angle ranging from 0 to 90 degrees, with the silicon wall (4) and are shaped to provide a smooth transition from the annular wall (3) to the inner wall (4). A container according to claim 1 or 2, having a lid, characterized in that the central opening of the annular core (3) is formed with two annular sealing surfaces (24, 15) arranged in a staggered manner relative to each other. A container with a lid according to claim 1, characterized in that the lid (2) comprises a substantially flat circular plate and a concentric flange (16) formed together therewith having a diameter smaller than the flat plate, and said the skirt is shaped so that it 5 can be brought into its tight snap connection at least at one point with the annular (3) central opening. A container with a lid according to claim 3 or 4, characterized in that the flange (16) is formed with an annular flange (26) 10 having a larger diameter than the flange itself, and said flange has a sealing surface (17). sealing against the annular (3) against the second sealing surface (15), and that between the flange (26) and the flange (16) there is an annular additional sealing surface (14) sealing against the second sealing surface (24). 5 in proximity such that an inner ring (3) is placed and supported on the inside of the upper collar of the silo, the outer edge or edges of which are in sealing contact with two parallel annular thickenings (5, 6) formed together with the inner walls of the silo 10, (3) the central opening has at least one sealing surface (24, 15) arranged to engage in a sealing and locking manner an annular flange (16) below the cover (2), characterized in that the annular flange (3) The -15 opening comprises a central portion, of which two annular annular portions (12, 13) extend towards the thickening portions (5, 6) of the silicon wall (4), thus defining an intermediate recess (25) having a diameter increasing in the silicon wall (4). towards such that the outer surfaces of the annular ring parts (12, 20 13) form an obtuse angle with respect to the plane of the wall of the silo. Container according to Claim 1 or 2, with a lid, characterized in that the upper thickening (5) of the silicon wall has an upwardly directed, annular interface (7) on which the edge (19) of the lid (2) rests, e.g. by means of a downwardly directed edge having an inclined annular interface (19) relative to the plane of the lid. A container according to any one of claims 1 to 6, having a lid, characterized in that a limited area (21) is arranged in the lid (2) in the annular region between the edge and the rim, which is thinned for this purpose. that it can be punctured. A container with a lid according to any one of claims 1 to 7, characterized in that the upper thickening (5) is arranged at such a distance from the edge (20 ') of the container that when the lid is correctly positioned (Fig. 5) the edge 35 the upper part is above the level of the cover (2), and said edge (20 ') is arranged to attach the film (22). and 90226