DE8208599U1 - Packaging container made of sheet metal sealed with a push-in lid - Google Patents

Description

Packaging container closed with a push-in lid

made of sheet metal

The innovation relates to one that is closed with a push-in lid Packaging container, preferably a bucket, hobbock or the like, made of sheet metal, the free end of the body of which has an outer border has and its push-in cover, starting from its in frictional engagement with the inner wall of said fuselage end located indentation flank, on the one hand over a fuselage border with the inclusion of a resilient sealing means practically concentrically comprehensive arc merges into a cover hook to the This is followed by an inwardly directed bead which, in the closed position of the lid, frictionally engages the outer border of the fuselage reaches under and ends in an outwardly protruding border and on the other hand with a horizontal bead a connecting wall merges into the cover surface, which is concave.

Containers of the aforementioned configuration have, for example As a packaging bucket, hobbocks or the like. With a volume of 6 to 33 liters. Well introduced in the context of practical use and proven. The reason for this was that the closure, in particular the tightness, behavior through this design of the lid on the container, in the event of unforeseen forces for example by impact, drop or the like. Reliable, safe and practically without objection from the outside. That functional interaction of the individual components such as Type and position of the indented flank of the lid, horizontal bead, the ability of the concave lid surface to jump over in a convex position and the like. Are here a prerequisite for the reliability of the container in terms of closure and tightness even in rough operation.

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In the course of ongoing monitoring of the functional behavior of the in The container in question as a packaging container was found to be in the area of the horizontal bead between the indented flank and mirror of the lid occasionally certain weak points occur. As is well known, the horizontal bead not only has its own functional task in connection with the jumping of the cover surface from its concave to the convex position Forces, as indicated above, but rather also in Connection with the column-forming stacking of filled and closed containers of the same type for storage and transport. In this case, the upper container in each case stands with its bottom fold connecting the container body with the bottom fold that connects the one drawn-in bottom on the bead base, the attached upper container being centered by the connecting wall.

The above-indicated monitoring of the functional behavior has now shown in connection with the columnar stacking of filled containers of the known type on top of one another that the horizontal bead of the previous design, in particular with a symmetrical cross-section, through occurring during transport and force components acting on the stacks intensify Is exposed to vibration stresses, which often leads to vibration cracks and breaks in said zone. Particularly The core base radius, i.e. the transition from the indentation edge to the bead base, is sensitive.

The task of the innovation is to remedy this. In particular should therefore by the innovation of the same packaging container filled for a columnar stacking as a receiving area horizontal beading area serving for the container placed on top can be improved in its design so that For example, force components occurring during transport or the like of such stacks no longer have a destructive effect on said beads can, for example, therefore, vibration cracks and breaks can be effectively prevented.

According to the present innovation, this object is achieved by that the horizontal bead of the cover has an asymmetrical cross-section, the transition areas from the indentation flank are formed in the bead base and from the bead base in the essentially vertical connecting wall by arches, the former of which is larger than the latter in terms of its radius. This configuration is a much improved one Resistance to vibration loads given, especially ** special insofar as the larger radius of the core base than that which makes the transition from the bead base to the essentially forms vertical connection wall, offers an improved possibility of absorbing or absorbing vibrations, wherein this arch acts, so to speak, as a resilient element and thus practically eliminates vibration cracks and breaks. According to the innovation The container thus guarantees the user of this packaging greater security in connection with the transport its filled container.

Practical experience has shown that the aforementioned structural Design is particularly advantageous and effective when, according to a further feature of the innovation, the transition arches have a radius ratio of 2: 1.

According to a further feature of the innovation, the transition from the vertical connecting wall to the cover surface is through a Arch formed, the radius of which corresponds to that of the arch between the bead base and the vertical connecting wall. Through this the cover profile is harmonized in an advantageous manner, the arc between the vertical connecting wall and the cover surface is not only unproblematic in terms of production, but also from the point of view of the forces acting on the outside Loads contributes in the sense that here a division of the force components together with the arch between the bead base and vertical connecting wall takes place.

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Another feature of the innovation is that the connection of the bead to the indentation flank via an inwardly directed Terrace jump and a flat, vertical wall section takes place, which runs practically parallel to the fuselage wall. This configuration fulfills two tasks: on the one hand, a radial evasive movement of the horizontal bead is made possible without that the fuselage wall is necessarily deformed when external forces act on the cover and the radial force component is particularly strong, for example when jumping around the concave cover surface into a convex position; on the other hand the terrace jump, the middle horizontal level of which, according to a further feature of the innovation, is the horizontal Level of the apex of the rim of the lid coincides, a stress-free stacking of the lids according to the innovation, without these jamming with each other. Finally, the terrace jump together with the flat vertical effect Wall section a secure "threading" of the lid into the fuselage mouth when closing and thus ensures a trouble-free lidding, especially with a machine.

About the stability when stacking several filled ones in a columnar manner and to improve closed containers of the same type in the context of storage and / or transport, according to Another feature of the innovation is the bead base, which has a flat ring surface.

Experience in connection with the behavior of the innovation Lid in its closed position in the event of unexpectedly occurring forces from the most varied and uncontrollable Directions have shown that the general proportion of the lid is optimal if according to another Characteristic of the innovation is the step in the terrace about half the height of the cover from the base of the bead to the apex of the cover arch lies between the indented flank and the lid hook.

The innovation is explained in more detail below using two exemplary embodiments that are shown in the drawing.

Show it:

Figure 1

the upper edge area of the with a push-in cover
sealed packaging container according to
Innovation in cut side view and strong
enlarged

Figure 2 shows the same view of a further embodiment

of the packaging container according to the innovation additionally with a lower part of a part of the stacking attached same container, both in cut side view

FIG. 3 shows the container design according to the invention according to FIG. 2 in the state of the action of external force

FIG. 4 shows a representation of the edge area of two push-in lids stacked on top of one another according to the innovation in FIG
cut

With 1 is the upper part in Figures 1 and 2 of the drawing
a cylindrical, conical or at least partially conical body of a bucket (or hobbock) at the bottom
Sheet metal, the free upper end of which in an outer border 2, in the present case circular cross-section,
expires.

The push-in cover 3, which is provided as a closure member, is essential Sealing surface has an indentation flank 4 which is in frictional engagement with the inner wall of the end of the fuselage 1. The impression flank 4 goes over to the outside via an arch 5 into a cover hook 6. The inner area of the arch 5 is elastic Sealing means 55 is provided which, as FIG. 4 shows,

is placed approximately crescent-shaped, so that in the closed position of the push-in cover 3 (see Figures 1 and 2) the sealant in the situation is shifted due to its elasticity around the outer area of the border and the inner wall section of the Lid hook 6 to lay snugly. As can be seen from Figures 1 and, the sheet 5 comprises in the closed position of the Lid 3 the fuselage border 2 practically concentric.

The cover hook 6 is followed by an inwardly directed bead 7 which, as can also be seen from FIGS. 1 and 2 is, the outboard 2 of the fuselage 1 frictionally reaches under and in an outwardly protruding border ends. The wall section 9 between the bead 7 and the Außenbord ierung 8 is formed as a flat roof-shaped protruding surface.

In the case of the present exemplary embodiment according to FIG horizontal bead 10, which, as the drawing clearly shows, has an asymmetrical cross-section and a flat bead base 11 owns. As FIGS. 1 and 2 of the drawing also show, the asymmetrical cross-section of the horizontal one results Bead 10 in that the transition areas from the indentation flank 4 into the bead base and from the bead base into the essentially vertical connecting wall 14 in by arches 12 and 13 are formed, the former, namely the arc 12, with respect to its radius is larger than the latter 13.

At said vertical connecting wall 14, a bend 15 connects, which finally in the concave cover surface 16 convicted.

As stated above, the asymmetrical design of the horizontal bead 11 results from the different Radius size of the arcs 12 and 13, the radius 12 of the arc 12, also referred to as the "core base radius", being twice as large as the arch 13.

Although the figures in the drawing may not be sufficient may show clearly, but provision is made for the arch 15r of the transition from the vertical connecting wall 14 forms in the cover surface 16, in the radius that of the arch 13 between the bead base 11 and the vertical connecting wall to design the same. This measure not only harmonizes the lid geometry per se, it is also related to the manufacturing process advantageous, but above all, from the point of view of the balance of forces, this arc works in the case of external loads with the sense of when a division of the acting force components occurs here together with the arch 13.

The embodiment according to FIG. 2 differs from that according to FIG. 1 in that the connection of the horizontal Bead 10 on the binding back flank 4 via an inwardly directed terrace jump 17 and a flat, vertical wall section 18 takes place, which runs practically parallel to the fuselage wall 1. The terrace jump 17 is about halfway the lid height from the bead base 11 to the apex of the lid arch 5 between the indentation flank 4 and the lid hook 6. This proportion has proven to be particularly advantageous in connection with the distribution of forces in the case of external forces.

The embodiment according to Figure 2 also shows that the horizontal plane E of the apex of the edge border 8 of the Lid 3 coincides with the middle level of the terrace jump 17. This feature has the great advantage that the lid this embodiment, that is to say those with a step 17 among one another exceptionally well, but above all can be stacked without jamming are, as can be seen from FIG. 4, without the need for further explanations here. It's just supposed to it should be noted that the sheet 5 of the lower cover here in two annular areas once on the flat wall 9, for other at the inner approach of the terrace jump 17 of the upper one

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Lid rests without jamming of the lids with one another when there is an axial load on the lid stack. A contribution the large radius of the arc 12 cannot be ruled out here either.

In the embodiment according to FIG. 2, a filled and closed container is used to reveal the column-like stackability of the type according to the innovation, the lower, possibly conical or offset, fuselage end shown with its Wall is also denoted by 1 and the bottom 19 connecting fold 20 on the bead base 11, the Connection wall 14 of the cover and at least part of the arch 15 correspond to one another in the centering sense. (The graphic representation does not correspond completely and exactly to the proportions; it is rather schematic.)

It is of course possible to use the above-indicated stacking also in the embodiment according to FIG shown).

Without being in connection with the figures of the present drawing Details in connection with the distribution of forces within the cover according to the innovation or the cover-Z-body combination in the locked state with forces occurring from outside in the form of force diagrams or entered in the drawing figures Forces components must be presented here, results from the representation per se that already due to the larger radius of the arch 12 compared to that of the arch 13 vibration cracks and breaks practically do not occur if the inevitably stacked, filled and columnar during transport closed container of the same type occurring vibrations act on the lower end of the fuselage on the horizontal bead 10. The said larger radius of the arc 12 acts as a spring to counteract these vibrations or catches them.

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But also in the case of a temporary change in shape of the push-in cover in question, for example when "jumping over" the per se concave cover mirror 16 in a convex position, proves the asymmetrical horizontal bead 10 with the claimed features as extremely favorable on the security of the lid in connection with the container. While at the Embodiment according to Figure 1, the large radius of the arc 12 with the greatest radial force at the moment of the horizontal position of the Lid mirror 16 will roll like a spring more in the downward direction on the inside of the upper end of the fuselage and less causes a change in shape in the radial direction outward, in the embodiment according to FIG. 2 in the area of the step in the terrace 17 a radial change in shape occurs in the region of the fuselage, as can be seen from FIG. 3, otherwise however, due to the distance between the vertical wall section 18 and the fuselage wall 1, there is sufficient space to evade the outer area the horizontal bead 10 be given.

In both cases there is practically no more cracks or breaks to be expected in these areas.

Claims (7)

the * 03/24/1982 protection claims 1. Packaging container closed with a push-in lid, preferably a bucket, made of sheet metal, the free end of the hull has an outer rim and its push-in lid, starting from its end of the fuselage which is in frictional engagement with the inner wall Impression flank, on the one hand, via a trunk border, including an elastic sealant practically concentrically comprehensive arc merges into a lid hook, one of which is inwardly Directional bead adjoins the outer rim of the fuselage in a non-positive manner in the closed position of the lid reaches under and ends in an outwardly protruding border and on the other hand a horizontal border The bead merges with a connecting wall into the cover surface, which is concave, characterized in that the horizontal bead (10) of the cover (3) is asymmetrical Has cross-section, the transition areas from the indentation flank (4) in the bead base (11) and from the bead base (11) in the essentially vertical connecting wall (14) are formed by arches (12, 13), the former (12) of which is larger in terms of its radius than the latter (13). 2. Packaging container according to claim l, characterized in that that the transition arcs (12, 13) have a radius ratio of 2: 1. 3. Packaging container according to claim 1, characterized in that that the transition from the vertical connecting wall (14) to the cover surface (16) is formed by an arch (15), the radius of which is that of the arch (13) between the bead base (11) and corresponds to vertical connecting wall (14). 4. Packaging container according to claim 1, characterized in that that the connection of the bead (10) to the impression flank (4) via an inwardly directed Terrace jump (17) and a flat, vertical wall section (18) takes place, which is practically parallel to the fuselage wall (1) runs. 5. Packaging container according to claim 1, characterized in that that the bead base (11) has a flat annular surface. 6. Packaging container according to one or more of the preceding claims 1 to 5, characterized in that that the terrace jump (17) about half the height of the cover from the bead base (11) to The apex of the cover arch (5) lies between the indentation flank (4) and the cover hook (6). 7. Packaging container according to claim!, Characterized in that that the horizontal plane (E) of the apex of the edge border (8) of the cover (3) with the middle horizontal level of the terrace jump (17) coincides.