AT500066A1 - Foodstuff plastics packaging tub, with a beaker body and a removable lid, has a lid coupling structure at the upper rim of the beaker body and around the lid to give a sealed fit when the lid is replaced - Google Patents

Abstract

The plastics tub (1), especially for packaging foodstuffs, has a body in the shape of a beaker with a coupling structure (8) at the upper rim of the beaker mantle (2) for a sealing lid (13) to be fitted and removed. The coupling has shapes (9,10) giving a force and a positive fit with complementary shapes (16,17) at the lid.

Description

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The invention relates to a cup-shaped packaging container made of at least one plastic material, with a coupling device for releasably releasable connection with a closure cover, wherein the packaging container has a circumferential thin-walled jacket with spaced apart end-side end portions extending in a plane approximately perpendicular to the longitudinal axis Mantellängsachse, wherein one of the end portions is closed or closed by a closure lid and the other end region by a closure lid or a bottom and in the end portion designed to receive a closure cover a coupling device of non-positive and positive coupling elements for cooperation with opposing coupling elements of a closure lid is arranged, a closure lid for a cup-shaped packaging container , in particular for a packaging container according to claim 1, made of at least one plastic ffmaterial, with a central part and a coupling device for connection to the packaging container, which has arranged in a peripheral edge region positive and positive coupling elements for connection to a cup-shaped packaging container, a packaging unit comprising a cup-shaped packaging container and a closure lid, which consist of at least one plastic and are connected with two, if necessary, releasable coupling devices, and a method for closing this packaging unit.

For packaging foodstuffs, for example milk products, yoghurts or other pasty contents, it is often desired that, in addition to the film closure, which has been used for a long time, for example with an aluminum foil which is heat-sealed on the packaging container in order to package the contents in a hygienic manner, the requirement additionally exists, after removing only parts of the contents, reseal the packaging container both in terms of hygiene and against unintentional emptying of the contents.

Such packaging containers are known from the prior art. In this case, usually deep-drawn lid are end face on a peripheral flange of a e.g. sealed conical container. Inside the cup are holding elements or projections, which should hold the lid after opening the first time again on the cup. These games are geometrically not clearly defined, since they act on the one hand not form-fitting, but rather non-positively, on the other hand, the problem of varying shrinkage behavior of the plastic is given, whereby a reliable holding the lid on the container is not guaranteed. The occurring deformations during the opening of the packaging container, however, do not allow a subsequent tight resealing due to the following lack of flatness of the sealing edges.

The invention is therefore based on the object to provide a packaging container or a closure lid, which is sealable and easy to re-seal in a simple and secure manner.

The object of the invention is achieved by a packaging container mentioned above, in which the frictional coupling element of the packaging container, the jacket in a direction away from the longitudinal axis of the jacket superior, circumferential, flange-like holding element, which is provided on the side facing away from the jacket top as a sealing surface and in which the form-fitting coupling element, for cooperation with the closure lid, is formed by at least one latching element acting in the direction of the longitudinal axis of the jacket, which projects beyond the flange-like holding element in the radial direction and is distanced therefrom, or by a closure cover mentioned in the introduction the non-positive coupling element is formed by a flange-like holding element enclosing the central part which serves as a sealing surface on a top side facing a packaging container and to which, in the radial direction, an outward direction ßen form-fitting, connect in the direction perpendicular to the central part effective coupling elements which project beyond the non-positive coupling element in the radial direction and then have in the direction of the longitudinal axis of the mantle locking elements and a packaging unit formed therefrom, and by a method for closing a packaging unit. It is advantageous that • the fact that the inventive design of the packaging container or the closure lid, a first-time opening of the seal without deformation, such as the closure lid, is possible and after the partial removal of the contents a safe and dense reclosure by the positive coupling device is possible , This is achieved above all by the special arrangement of the two coupling elements, that is to say of the positive and non-positive coupling element. The arrangement of an externally arranged on the cup, rotating coupling element or latching element, both the closure lid as well as the packaging container itself is given a high mechanical stability, whereby a deformation during removal of the closure lid from the packaging container is effectively counteracted. At the same time, however, a bias against the Verpackungsbehälteröffiiung is applied by this externally annular coupling element acting, whereby high sealing or sealing forces act and thus the reseal of the packaging container is given the desired tightness. Another advantage is that a bulge of the jacket of the packaging container during filling or in the filled state does not lead to any deterioration of the tightness of the packaging container, as is the case, for example, with internally mounted coupling elements between the closure lid and packaging container. It is also advantageous that the formation of a distanced from the sail surface in the radial direction locking element no permanent deformation of the coupling elements due to excessive deformation during initial opening of the packaging container with simultaneous release of the seal occurs. In known from the prior art packaging container with also acting on the outer circumference form-fitting coupling elements, this is not possible by the direct action of the force applied by the user opening force and a resulting bending stress or deformation. In the embodiment of the coupling device according to the invention, no deformation of the closure lid and thus the tightness is not impaired. As a further advantage arises due to the geometric arrangement of the coupling elements according to the invention, that when opened for the first time the sealing seam is opened in terms of time after the positive coupling element and thus effectively counteracts unintentional opening of the tamper-evident closure. The fact that the lid engages around the outer packaging container by means of coupling elements, the additional advantage of a drip catch, which in the NSOQ3 / 07 (S80

Edge area remain after drinking remaining after sealing inside the packaging container and thus no contamination of the outside of the cup takes place.

According to one embodiment variant, it is provided that the latching element has the shape of a polygonal pull in a plane running through the longitudinal axis of the cup, whereby an additional mechanical stiffening can be achieved by the formed edges in the traverse.

Characterized in that the latching element in a plane passing through the longitudinal axis of the mantle of the cup has the shape of a concave with respect to the outer surface of the shell curvature is achieved in an advantageous manner that a pleasant for the user in the lip contact drinking rim is formed and through this Rounding the risk of cuts is reduced, since the simultaneous occurring mechanical reinforcing effect otherwise occurring during sealing uncontrolled deformation of the cup is avoided.

Due to the refinements, according to which the curvature of the locking element corresponds at least in partial areas to a circular shape or parts of an elliptical curvature, the advantage is achieved that the locking element itself receives the highest possible mechanical stability and the risk of deformation is minimized.

Characterized in that the sealing surface in the radial direction has a width between 0.5 mm and 5 mm, preferably between 1 mm and 3.5 mm, the advantage is achieved that the width of the sealing surface and thus the directly related adhesive force of the seal can be optimally adapted to the respective application.

It is further advantageous if the locking element in the radial direction has a width between 1 mm and 4 mm, preferably between 1.5 mm and 3.5 mm and in the direction of the longitudinal axis of the shell a height between 2 mm and 5 mm, preferably between 2.5 mm and 4 mm, as a spatial distancing of the application of force of the user to non-positive coupling element takes place and thus on the one hand deformation of the areas around the sealing surface is prevented and on the other hand, the sealing surface between the packaging container and closure cap is increased. ΐιΗΟΠΤιίίΓΓΤηΟ wi u.uujj v t uw

The fact that the shape of the packaging container is substantially rotationally symmetrical, the advantage is achieved that this shape is adapted to the commercial drinking or Joghurtbe-holdem and thus good handling is ensured.

According to one embodiment, it is possible that the shape of the container is substantially rectangular and the advantage is achieved that a high stack density is achieved, and thus transport costs and storage costs can be kept low.

Another advantage is when the material for forming the packaging container from the group of polypropylene (PP), polystyrene (PS) or polyester, in particular polyethylene terephthalate (PET), is selected, since on the one hand food authenticity is given, on the other With good mechanical properties, such as strength, stress cracking resistance or flex life, the manufacturing or raw material costs can be kept low.

In a further development of the closure cap is provided that the positive coupling element in a plane passing through the central part level has the shape of a polygonal pull, whereby the advantage is achieved that lends the lid a high mechanical stability and the tightness is increased by the formed edges in the polygonal pull ,

Another advantage is that the positive coupling element in a plane passing through the central part of the plane of a, with respect to a packaging container surface facing concave curvature, which on the one hand sharp edges can be avoided and thus reduces the risk of injury or cutting risk of the user On the other hand, the closure lid is additionally given a higher stability by this constriction. It is further possible that the sealing surface in the radial direction has a width between 0.5 mm and 5 mm, preferably between 1 mm and 3.5 mm, whereby the adhesiveness of the seal can be set individually to the particular application.

Characterized in that the positive coupling element in the radial direction has a width between 1 mm and 5 mm, preferably between 1.5 mm and 4 mm, and in the direction normal to a plane passing through the central part level a height between 2 mm and 7 mm, preferably between 2.5 mm and 6.5 mm, the advantage is achieved that this separation from the non-positive coupling element deformation of the closure cap can be avoided by the not directly acting opening force and further thereby the sealing surface between the packaging container and closure cap is increased.

In a further development of the invention, it is provided that a radially outwardly extending, circumferential guide region adjoins the restoring detent element, as a result of which placement of the closure lid on the packaging container is substantially facilitated and jamming of the coupling elements is effectively avoided.

Characterized in that the guide region in the direction normal to a plane passing through the central part level has a height between 1.5 mm and 5 mm, preferably between 2 mm and 4 mm, the height of the guide portion can be individually adapted to the respective cup size.

Furthermore, it is advantageous if at least over partial regions of the circumference of the guide region, at least one radially outwardly extending tear tab adjoins, since a simple and easy opening of the closure lid is possible by the attack surface formed thereby.

The fact that the shape of the lid is substantially rotationally symmetrical or rectangular, the advantage of easy handling when used as a drinking cup and the advantage of a high stack density is achieved.

It is advantageous if the material for forming the cover from the group of polypropylene (PP), polystyrene (PS) or polyester, in particular polyethylene terephthalate (PET), is selected, since on the one hand food authenticity is given, on the other hand with good mechanical Properties the manufacturing or raw material costs can be kept low.

Furthermore, it is advantageous if the packaging container (1) and the closure lid (13) are formed from the same material, since a pure sort and thus simple and cost-effective recycling is possible. .N2000i ^ 00fr

According to the development of the method, whereby the sealing is carried out by means of a hot-melt adhesive or by means of thermo-lacquer, the seal can be carried out inexpensively and food-safe.

The invention will be explained in more detail below with reference to the embodiments illustrated in the drawings.

Show it:

1 shows a first embodiment of a packaging container according to the invention;

2 shows a first embodiment variant of a closure lid according to the invention;

3 shows a packaging unit according to the invention, comprising a cup-shaped packaging container and a closure lid;

4 shows a plan view of the closure lid according to the invention in a circular configuration;

5 shows a further embodiment variant of the packaging unit according to the invention;

6 is a plan view of the closure lid according to the invention in an elliptical configuration;

7 shows a further embodiment of the closure lid in a rectangular configuration;

8 shows a further embodiment variant of the coupling devices of the packaging container or of the closure lid;

9 schematically in a closure station held packaging container or

Closure cap according to an embodiment of the method;

Fig. 10 radii or height ratios of the packaging container according to the invention and the closure lid.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component designations. The disclosures contained in the entire description can be analogously applied to the same parts with the same reference numerals or the same component designations. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position. Furthermore, individual features or combinations of features from the various exemplary embodiments shown and described can also represent separate, inventive or inventive solutions.

FIG. 1 shows a first embodiment of a packaging container 1 according to the invention.

Shown is a packaging container 1 with a jacket 2 formed by a hollow truncated cone, which is closed by a bottom 4 in the region of a first end region 3. In the opposite second end region 5, the packaging container 1 has an opening 6. The packaging container 1 is formed rotationally symmetrical to its longitudinal axis 7.

In the region of the second end region 5, a coupling device 8 is arranged, which is formed by a positive coupling element 9 and a frictional coupling element 10.

The form-fitting coupling element 9 is formed by a circumferential over the circumference of the packaging container 1 locking element 11 and the non-positive coupling element 10 by a circumferential, flange-like retaining element 12th

The holding element 12 can be provided on the side facing away from the casing 2 top of the packaging container 1 as a sealing surface or sealing flange. The width of the sealing surface in the radial direction may be between 0.5 mm and 5 mm, preferably between 1 mm and 3.5 mm.

Due to the design of the retaining element 12 as a sealing flange, it is possible to provide the packaging container 1 with a seal seal as originality mark. In addition, the contents of the packaging container are protected by this closure. JC003 / 07800

According to the invention, the plane of the holding element 12 does not have to run normal to the direction of the longitudinal axis of the jacket 7 and, if it is advantageous or desired in terms of production, both in a deviating from the planar shape form, in particular curved, as well as in a direction of the normal Mantellängsachse 7 at an angle deviating direction.

The holding element 12 is used according to the invention as a sealing surface for Aufiiahme an adhesive. Particularly advantageous is a heat-sealable adhesive layer of a plastic material, in particular a hot melt adhesive, or a thermoresist as this food safety is guaranteed.

Following the non-positive coupling element 10, the positive coupling element 9 is arranged radially outwardly, which forms a latching element 11.

This results, contrary to the known from the prior art solutions with arranged on the inside of the cup locking elements the advantage that effectively counteracted by these measures during the manufacture of the packaging unit, for example by deep drawing, small dimensional tolerances and despite these tolerances achieved a secure closing becomes.

This circumferential detent element 11 may, as shown in Fig. 1, in a plane passing through the longitudinal axis 2 of the packaging container 1 level, have the shape of a concave with respect to the outer surface of the shell 2 curvature. According to the invention, the special shape of the curvature can be composed of regions that are slightly curved on the outer edge and regions of greater curvature or straight regions in the region of the retaining element 12. It is also possible, as shown in Fig. 4, that the locking element 11 is formed approximately semi-circular.

However, the latching element 11 may also have the shape of an elliptical curvature, in particular in the outwardly tapering region.

In order to obtain an optimal shape for the particular application, the locking element 11 may of course also composed of several partial curvatures such that curvatures of different radii of curvature or shapes connect to each other. • · · · · · · · · · · · · · · ••••••••••••••••••••••••••••

An additional advantage results from the fact that can be supported by the formation of the holding member 12 of the coupling device 8, an envelope of the packaging container 1, for example, a cardboard or plastic sleeve.

FIG. 2 shows a first embodiment variant of a closure lid 13 according to the invention.

At a central part 14, a coupling device 15 connects in the direction radially outward. In this case, the coupling device 15 is formed by the non-positive coupling element 16 arranged in a peripheral edge region and a form-locking coupling element 17 adjoining it radially outwards.

The non-positive coupling element 16 is formed by a flange-like holding element 18 enclosing the central part 14. The flange-like holding element 18 of the closure cap 13 acts as a counterpart to the flange-like holding element 12 of the packaging container 1 (see FIG. 1).

By gluing or sealing these two holding elements creates a tight seal between the packaging container 1 and the closure lid 13, on the one hand protects the contents from air access, and thus from spoiling and on the other hand serves as a tamper-evident closure.

In the radial direction to the outside, the frictional coupling element 16 is followed by a positive coupling element 17.

The coupling element 17 may according to the invention have a width between 1 mm and 5 mm, preferably between 1.5 mm and 4 mm. The positive coupling element 17 has one or more rearward locking elements 19 in the end region in the direction of the longitudinal axis of the shell. These locking elements 19 make when pressing the closure lid 13 on the packaging container 1 a secure positive connection of the two parts.

When pressing the area of the positive coupling element 17 is elastically expanded and snaps over the positive coupling element 9 of the packaging container 1 a. The distance of the coupling device 15 of the closure cap 13 from the longitudinal axis of the shell 7, according to the invention, may be slightly smaller than the \ AΙΛAaίΑΜΠΛΛ ri 2 2 2 2 2 2 2 2 2 2 2 ri ri ri ri ri ri ri ri ri ri ri ri ri ri ri ri ri. ·· ♦ · ♦♦ ·· «*« «··

This results in the advantage that with eingeschnapptem cap 13 has a certain bias between the closure lid 13 and the packaging container 1 acts, so that a secure and as close as possible detachable connection between these two parts.

A seal against leakage of liquid or pasty contents takes place over the surfaces of the packaging container 1 facing side of the positive coupling element 17th

3 shows a packaging unit according to the invention, comprising a cup-shaped packaging container 1 and a closure lid 13.

It should be noted at this point that parts with the same reference numerals can be adopted by other figures and will not be described separately here.

Shown is a packaging unit according to the invention, comprising the cup-shaped packaging container 1 and the closure lid 13.

The form-fitting coupling element 9 of the packaging container 1 is formed approximately in the form of a semicircle in this embodiment. The equivalent positive coupling element 17 of the closure cover 13 is also formed semicircular.

In the end region of the coupling element 17, the projecting locking element 19 is formed by continuation of the circular course.

Following the latching element 19, a radially outwardly extending circumferential guide region 20 is formed. Of particular advantage is that the placement of the closure lid 13 on the packaging container 1 and the connection of the two coupling devices 8 and 15 with each other is substantially simplified because tilting is avoided.

According to the invention, it is also possible that the positive coupling elements 9 and 17, respectively, have the shape of a polygon, in particular at right angles. As a result, additional mechanical stability can be imparted to the packaging container 1 or the closure lid 13.

The plastic deformation resistance achieved by the special embodiments of the closure lid 13 or the packaging container 1 described in the individual figures is always greater than the force required to separate the positive coupling elements 9 and 17 or to separate the non-positive coupling elements 10 and 16 and therefore becomes a permanent deformation of the packaging unit, even with repeated closing and opening prevented.

Of course, the shape of the positive coupling elements 9 and 17 can also be composed of a plurality of partial curvatures or polygons such that curvatures of different radii of curvature or shapes adjoin one another.

When opening the packaging container 1 is achieved by the inventive design and arrangement of the coupling devices 8,15 in an advantageous manner that when applying a corresponding force by the user, first the positive coupling elements 9,17 of the packaging container 1 and the closure lid 13 in one Area are separated by the force introduced by one another, and only in chronological order, the two non-positive coupling elements 10 and 16, for example in the form of a seal, are separated from each other.

This effectively prevents unintentional opening of the tamper-evident closure of the packaging unit.

The shape of the packaging container 1 according to the invention should not be limited to conically shaped contours, but is also a parallel to the longitudinal axis 7 extending jacket 2 or a konterkonischer or a different curvatures having coat 2 possible.

According to the invention, the packaging container 1 or the closure lid 13 can be produced by prototyping, such as, for example, pressing, transfer molding or injection molding or by thermoforming, for example thermoforming or stretch forming.

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The packaging container 1 can also be designed (not shown in FIG. 3) such that, in addition to the opening 6 in the region of the second end region 5, a second opening is arranged in the region of the first end region 3. By forming the coupling device 8 according to the invention at this second opening, it is possible to provide a resealable ventilation opening, whereby an easier emptying of the contents is possible when falling, for example, pudding or jelly-like contents. Also can be supported on the holding elements 12 of the two coupling devices 8 by this training a wrapping of the packaging container 1, for example, formed by a cardboard or plastic sleeve. By a special shaping in the second end region 3, in particular a tapering of the diameter of the packaging container 1, whereby the coupling device 8 or the closure lid 13 coupled thereto does not project beyond the adjoining diameter of the jacket 2, the stackability of the packaging container 1 is maintained.

Fig. 4 shows a plan view of the closure cap 13 according to the invention in a circular configuration.

This is followed by a central part 14 arranged rotationally symmetrically about the longitudinal axis of the mantle 7. This is followed radially outward by the region of the non-positive coupling element 16, the form-fitting coupling element 17 and the guide region 20. The dotted line in the region of the form-locking coupling element 17 indicates the end region of the engagement element 19 engaging behind.

According to the invention, it is also possible to arrange at least one tear-open tab 21 extending radially outwards along the circumference. The tear tab 21 may also be in the form of a semicircle.

Furthermore, it is possible to form the closure lid 13 shown here or the packaging container 1, for example in approximately rectangular shape. It is particularly advantageous if the corners of the packaging container 1 and the closure lid 13 are formed rounded.

The embodiments described in the further figures can of course also be transferred to the rectangular shape of the packaging container 1 or of the closure lid 13. • ** · · · · · · · · · ·································································.

5 shows an embodiment variant of the packaging unit according to the invention, comprising a cup-shaped packaging container 1 and a closure lid 13.

The positive coupling element 9 of the packaging container 1 is formed in this embodiment in the form of a traverse, whose individual sections include approximately right angles formed. In the end region of the coupling element 17, the rearward locking element 19 is connected. Through this embodiment, the advantage is achieved that the positive coupling element 17 receives a high mechanical stability by the occurring peripheral edges of the polygon and thus counteracts a deformation when opening the packaging container 1.

The attached to the rear locking element 19, circumferential guide portion 20, the placement of the closure cap 13 is simplified to the packaging container 1, since thereby tilting of the coupling device 15 of the closure lid 13 with the coupling device 8 of the packaging container 1 is prevented.

To the positive coupling element 17, the non-positive coupling element 16 is connected radially inwardly. The force-locking coupling element 16 is formed by a flange-like holding element 18 enclosing the central part 14. It is particularly advantageous if the flange-like retaining element 18 is formed as a sealing surface, which in combination with a sealing surface of the packaging container 1, a tamper-evident closure can be created, which also protects the contents of the packaging container 1 from air access and thus from spoiling.

The formed on the packaging container 1, circumferential, positive coupling element 9 of the coupling device 8 is formed in an analogous manner to the positive coupling element 17 of the coupling device 15 of the closure lid 13. Again, proves achieved by the edges of the polygon draw mechanical reinforcement and thus stiffening of the packaging container 1 as advantageous.

Fig. 6 shows a plan view of the closure cap 13 according to the invention in an elliptical configuration.

Shown is an elliptical about the shell longitudinal axis 7 formed central part 14, wherein the radially outward radially first of the region of the non-positive coupling element 16, \ Τ ^ ΛΛΛ ΙΛ ^ ΠΛΛ connect the positive coupling element 17 and the guide portion 20. The end region of the engaging latching element 19 is indicated by the dashed, in the region of the positive coupling element 17.

The shape of the outline of the packaging container 1 corresponds to that of the closure cap 13 shown.

By the embodiment shown in Fig. 6, there is the particular advantage that by an elliptical configuration of the closure lid 13 and the packaging container 1, an opening or removal of the closure lid 13 is more easily possible because arranged by the at the longer major axis of the ellipse Aufreißlasche 21 better Lever ratios or a force on a smaller area of the rotating coupling device 8 of the packaging container 1 and the coupling device 15 of the closure cover 13 is carried out and thus a small force to release the two coupling devices must be applied to each other.

Fig. 7 shows a further embodiment of the closure lid 13 in a rectangular configuration.

Shown is a sealing cover 13 which is rectangular around the jacket longitudinal axis 7. The corner regions can be rounded according to the invention. This form has the advantage that the packaging container 1 or the closure lid 13 allow a higher stack density, whereby the costs can be reduced during transport or storage both in the precipitated and in the stacked-unfilled state.

To facilitate opening a tear tab 21 is arranged on at least one of the four sides of the closure lid 13.

According to the invention, the shape of the packaging container 1 or the closure lid 13 may also be square, resulting in the same advantages during storage or transport.

FIG. 8 shows a further embodiment variant of the coupling devices of the packaging container 1 or of the closure cap 13.......... · · · · · «· · ·· # ··· ♦ ···«

It should be noted at this point again that the description of parts with the same reference numerals can be taken from other figures and will not be discussed here.

Shown are the coupling devices 8 and 15 of the cylindrical packaging container 1 and the closure lid 13. The shape of the positive coupling elements corresponds to that of a polygon with angles deviating from the right angle. Due to this special embodiment, the particular advantage is achieved that the circumferential positive coupling element 17 of the closure lid 13 and the circumferential, positive coupling element 9 of the packaging container 1 are reinforced in their mechanical strength by the plurality of edges which are formed by the polygon. As a result, plastic deformation or tearing or tearing when removing the closure lid 13 from the packaging container 1 are avoided.

Following the form-locking coupling element 17 of the closure cap 13, the non-positive coupling element 16 with the holding element 18 and a circumferential groove 22 facing toward the packaging container 1 and an adjoining central part 14 adjoin radially inwards.

Through this groove 22 is an additional stabilization of the closure lid 13 against mechanical stresses that occur, for example, when removing the closure lid 13. A further advantage results from the fact that the circumferential groove 22 rests in the closed state on the jacket 2 of the packaging container 1 an additional sealing surface, which prevents unwanted leakage of the contents of the packaging container 1.

According to the invention, the central part 14 can also be arranged above or below the holding element 18 in the direction of the longitudinal axis of the jacket, which makes it possible to customize the shape of the closure lid 13 to accommodate additional articles, in particular cutlery or the like, on the surface of the packaging container 1 facing away from the packaging container 1 Closing cover 13 to create.

FIG. 9 schematically shows the packaging container 1 or closure lid 13 held in support rings of a sealing device 25 according to an embodiment of the method according to the invention. ΧίΛΑΑΛ ΙΛΊΟΛΛ · · · · · · · · · · · · · · · · · · · · *.

Shown is a support ring 23 which serves to receive the inventive packaging container 1. The support ring 23 is located on the side facing away from the closure lid end of the packaging container 1 on the holding element 12, between the outer circumferential positive coupling element 17 of the coupling device 15 and the jacket 2 of the packaging container 1 at.

The support ring 23 also serves as a signing ring and, according to the invention, can also be heated to produce a heat seal, for example electrically.

On the closure cover 13, a further support ring 24 or signet ring is applied to the holding element 18, between the positive coupling element 17 and the central part 14. This can also be designed according to the invention, in the case of a heat seal, for example, electrically heated.

According to the invention, the closure lid 13 can be held in place by a tension between the support ring 24 and the form-fitting coupling element 17, generated by a slightly larger dimension of the support ring 24. This provides the advantage of a simpler construction of the sealing device 25th

For better retention of, for example, larger or less mechanically stable closure lids 13, it proves to be advantageous if a holding device is arranged in the region of the longitudinal axis 7 of the support ring 24 (not shown in FIG. 9). With this holding device, the closure lid 13, for example, by suppressing acting on the support ring 24 are held.

By a mutual movement of the two support rings 23 and 24 along the longitudinal axis of the jacket 7, the two holding elements 18 and 12 of the non-positive coupling elements 16 and 10 of the closure lid 13 and the packaging container 1 brought into abutment. By the force applied in the direction of the longitudinal axis of the mantle also the positive coupling element 17 of the closure lid 13, and the positive coupling element 9 of the packaging container 1 are coupled together. By introducing heat through the support ring 23 and / or the support ring 24, a previously applied to the holding elements 18 and / or 12 adhesive, in particular a thermal resist, cured and the packaging container 1 with the closure lid 13 tightly sealed. N2003 / OT800 φ • φ • · · · * * * «* '· φ · * I * φ φ # ·

According to a variant embodiment of the method, it is possible that first the closure lid 13 is brought into contact with the packaging container 1 held in the support ring 23 and by means of a suitable, for example, a circumferential ring, closure element in the direction of the longitudinal axis 7 on the positive coupling elements 17 of the closure cap 13th a force is applied in such a way that the two coupling elements 9 and 17 lock together. Thereafter, the sealing takes place by applying the support ring 24 to the retaining element 18 of the non-positive coupling element 16, for example by the action of heat.

10 shows radii or height relationships of the packaging container 1 according to the invention and of the closure lid 13.

Shown are the coupling devices 8 and 15 of the packaging container 1 and the closure lid 13. The shape of the positive coupling elements 9.17 corresponds approximately to that of a semicircle.

On the closure cover 13, a radius 26 is shown, which indicates the largest distance of the inner surface of the wall of the rotating positive-locking coupling element 17 to the longitudinal axis 7.

Analogously, a radius 27 of the packaging container 1 indicates the greatest radial extent of the rotating form-fitting coupling element 9.

It proves to be particularly advantageous if the closure lid 13 or the packaging container 1 is designed such that the radius 26 is smaller or at most the same size as the radius 27 of the packaging container 1.

In this way, when the packaging unit is closed, the packaging container 1 or the closure lid 13 are under a radial counteracting stress, which presses the respectively adjacent wall regions of the coupling elements 9, 17 together, thus providing a high degree of impermeability to undesirable leakage of the contents. On the other hand ensures a secure holding the closure lid 13 on the packaging container 1. N2Q03 / 0300fc.

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Furthermore, a height 28 is shown on the closure lid, which indicates the distance from the beginning of the projecting locking element 19, to the largest extent of the concave inner wall of the positive coupling element 17 in the direction of the longitudinal axis 7.

Similarly, a height 29 is indicated on the packaging container 1, which indicates the largest extent of the locking element 11 in the direction of the longitudinal axis 7 mantle.

Of particular advantage is when the closure lid 13 or the packaging container 1 is formed so that the height 28 is smaller or at most equal to the height 29.

As a result, in addition to the above-described radial stress, between the interlocking coupling elements 9,17 an axial tension acting in the longitudinal axis of the shell 7 is built up and thus a still more secure and denser sealing of the packaging unit is made possible.

These biases also effectively prevent premature detachment of the sealed seam which may be formed by the non-positive coupling elements 10 and 16.

It should be noted that these radii or height ratios are not limited to the approximately semicircular coupling elements shown in FIG. 10, but can be analogously also transferred to the forms described in the other figures.

The Ausfiihrungsbeispiele show possible embodiments of the packaging container 1 and the closure lid 13, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are mutually possible and this variation possibility due to the teaching to technical action by objective invention in the skill of those working in this technical field expert. There are therefore also all possible embodiments, which are possible by combinations of individual details of the illustrated and described embodiment, the scope of protection.

For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the packaging container 1 and the closure lid 13, these or their • # · · * • ·

Ingredients were partially displayed off-scale and / or enlarged and / or reduced.

The task underlying the independent inventive solutions can be taken from the description.

Above all, the individual in Figs. 1; 2; 3; 4; 5; 6; 7; 8th; 9; 10 embodiments form the subject of independent, erfmdungsgemäßen solutions. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.

Reference numeral Packaging container

coat

end

ground

End area opening

coat longitudinal axis

coupling device

coupling member

coupling member

locking element

retaining element

cap

Central part

coupling device

coupling member

coupling member

retaining element

Locking element guide area

Pull tab reooji'tmer

Claims (32)

1. Cup-shaped packaging container (1) made of at least one plastic material, with a coupling device (8) for releasably releasable connection with a closure lid (13), wherein the packaging container (1) with a circumferential thin-walled jacket (2) with spaced apart end - side end regions (3, 5) which extend in a plane approximately perpendicular to the longitudinal axis of the shell (7), one of the end regions being closable by a closure cover (13) and the other end region by a closure cover (13) or a bottom (4) is closed and arranged in the end portion designed to receive a closure cap a coupling device (8) of non-positive and positive coupling elements (9,10) for cooperation with opposite coupling elements (16,17) of a closure cover (13), characterized in that the non-positive coupling element (10) of the packaging a, the shell (2) in a direction away from the longitudinal axis (7) facing away, circumferential, flange-like holding element (12) whose, on the top of the jacket (2) averted top is provided as a sealing surface and that positive-locking coupling element (9), for cooperation with the closure lid (13), is formed by at least one locking element (11) acting in the direction of the longitudinal axis of the jacket, which projects beyond the flange-like holding element (12) in the radial direction and is arranged at a distance therefrom. 2. Closure cover (13) for a cup-shaped packaging container (1), in particular for a packaging container according to claim 1, made of at least one plastic material, with a central part (14) and a coupling device (15) for connection to the packaging container (1) arranged in a peripheral edge region positive and positive coupling elements (16,17) for connection to a cup-shaped packaging container, characterized in that the non-positive coupling element (16) by a central part (14) enclosing the flange-like holding element (18) is formed on a top of a packaging container (1) facing surface serves as a sealing surface and to which in the radial direction outwardly positive, effective in the direction perpendicular to the central part coupling elements (17) connect the non-positive coupling element (16) in the radial Towering above and following in the direction of the longitudinal axis of the jacket (7) having locking elements (19). 3. Packaging unit, comprising a cup-shaped packaging container (1) and a closure lid (13), which consist of at least one plastic and with two, if necessary, releasable coupling devices (8,15) are connected, characterized in that the packaging container (1) according to claim 1 or any one of claims 4 to 13 or 28 and the closure lid (13) according to claim 2 or any one of claims 14 to 27 is formed. 4. Packaging container (1) according to claim 1, characterized in that the latching element (11) in a plane passing through the longitudinal shell axis (7) of the cup has the shape of a polygon. 5. Packaging container (1) according to claim 4, characterized in that the traverse includes approximately right angles. 6. Packaging container (1) according to claim 1, characterized in that the latching element (11) in a plane passing through the longitudinal axis of the cup cup has the shape of a with respect to the outer surface of the shell (2) concave curvature. 7. Packaging container (1) according to claim 6, characterized in that the curvature of the locking element corresponds at least in partial areas of a circular shape. 8. Packaging container (1) according to claim 6 or 7, characterized in that the curvature of the locking element has at least in some areas parts of an elliptical curvature. ΙΥΥΤΤΑΠ 1 • · • · -φ- 9. Packaging container (1) according to one or more of the preceding claims, characterized in that the sealing surface in the radial direction has a width between 0.5 mm and 5 mm, preferably between 1 mm and 3.5 mm. 10. Packaging container (1) according to one or more of the preceding claims, characterized in that the latching element (11) in the radial direction has a width between 1 mm and 4 mm, preferably between 1.5 mm and 3.5 mm. 11. Packaging container (1) according to claim 10, characterized in that the latching element (11) in the direction of the longitudinal axis of the jacket (7) has a height between 2 mm and 5 mm, preferably between 2.5 mm and 4 mm. 12. Packaging container (1) according to one or more of the preceding claims, characterized in that the shape of the container is substantially rotationally symmetrical. 13. Packaging container (1) according to one of claims 1 to 11, characterized in that the shape of the container is substantially rectangular. 14. Closure cover (13) according to claim 2, characterized in that the positive coupling element (17) in a plane passing through the central part (14) has the form of a traverse plane. 15. Closure cover (13) according to claim 14, characterized in that the traverse includes approximately right angles. 16, closure lid (13) according to claim 2, characterized in that the positive coupling element (17) in a plane passing through the central part of the plane of a, with respect to a packaging container (1) facing surface, concave curvature. • · 17. closure lid (13) according to claim 16, characterized in that the curvature corresponds at least in partial areas of a circular shape. 18, closure lid (13) according to claim 16 or 17, characterized in that the curvature has at least in some areas parts of an elliptical curvature. 19, closure lid (13) according to one or more of the preceding claims, characterized in that the sealing surface in the radial direction has a width between 0.5 mm and 5 mm, preferably between 1 mm and 3.5 mm. 20, closure lid (13) according to one or more of the preceding claims, characterized in that the positive coupling element (17) in the radial direction has a width between 1 mm and 5 mm, preferably between 1.5 mm and 4 mm. 21, closure lid (13) according to one or more of the preceding claims, characterized in that the positive coupling element (17) in the direction normal to a plane passing through the central part level a height between 2 mm and 7 mm, preferably between 2.5 mm and 6.5 mm. 22, closure lid (13) according to one or more of the preceding claims, characterized in that the radially projecting latching element (19), a radially outwardly extending, circumferential guide region (20) connects. 23, closure lid (13) according to claim 22, characterized in that the guide region (20) in the direction normal to a through the central part (14) extending plane has a height between 1.5 mm and 5 mm, preferably between 2 mm and 4 mm having. n ii < Nzu03ff77TOr • * 24, closure lid (13) according to claim 22 or 23, characterized in that adjoins at least a portion of the circumference of the guide portion (20) at least one radially outwardly extending tear tab (21). 25. Closure lid (13) according to one or more of the preceding claims, characterized in that the shape of the lid is substantially rotationally symmetrical. 26, closure lid (13) according to one of claims 2 to 24, characterized in that the shape of the lid is substantially rectangular. 27, closure lid 13 according to claim 2 or one of claims 14 to 26, characterized in that the material for forming the lid from the group of polypropylene (PP), polystyrene (PS) or polyester, in particular polyethylene terephthalate (PET) is selected. 28. Packaging container 1 according to claim 1 or one of claims 4 to 13, characterized in that the material for forming the container from the group of polypropylene (PP), polystyrene (PS) or polyester, in particular polyethylene terephthalate (PET) is selected. 29. Packaging unit according to claim 3, characterized in that the packaging container (1) and the closure lid (13) are formed from the same material. 30. A method for closing a packaging unit, wherein a plastic packaging container (1) with a peripheral frictional retaining element (12) and a, this coupling element (10) radially outwardly comprehensive positive coupling element (9) of a coupling device (8) between the packaging container ( 1) and a closure lid (13) and a closure lid (13) which is provided with a force-locking holding element (18) which surrounds a central part (14) in an annular manner and a form-fitting coupling element (17) which surrounds the outside annularly (17 ), whereupon the cavity of the packaging container (1) is filled with a product, characterized in that the closure lid (13) is placed on the packaging container (1) in the direction of the longitudinal axis of the jacket (7) and then pressed, so that the coupling elements ( 9, 17) of the coupling devices (8, 15) between the closure lid (13) and the packaging container (1) engage behind one another, whereupon a support ring (23) of a sealing device (26) between the outer circumferential positive coupling element (9) of the coupling device (8 ) and the jacket (2) of the packaging container (1) for abutment on the upper side opposite the outer surface of the frictional coupling element (10) is applied and on the closure lid (13) on the side facing away from the packaging container (1) side another support ring (24) is lowered onto the non-positive coupling element (16), whereupon the closure lid (13) and the packaging container (1) in the region of their holding elements (12,18) are pressed against each other and sealed together. 31. The method according to claim 30, characterized in that the seal is carried out by means of a hot melt adhesive or by means of thermo-lacquer. 32. The method of claim 30 or 31, characterized in that the support rings (23,24) are heated. RundpaclcAG U Ul Vll - (Dr Sooldchner)