DK159920B - STABLE LAYOUT FOR DISPOSAL CONTAINERS - Google Patents

Abstract

1. Stackable lid (29) for one-way containers, more especially for meal trays of aluminium foil or the like, with a profiled formation which is formed in the lid surface asymmetrically of the centre of the lid, with an externally enclosing rim-forming and gripping strip (16) arranged almost at right-angles but sloping slightly outwards, on which are provided, on two opposite sides of the lid, gripping strip extensions (7, 10) of different length and projecting outwardly approximately at right-angles, which extensions are provided with profiles arranged offset relatively to one another, characterised in that the longer gripping strip extension (7) is divided into two portions (8, 9) by a central recess or cut-out (11) and that the shorter gripping strip extension (10) extends substantially over the entire straight portion of the side of the lid or only over a central section of the side of the lid.

Description

DK 189920 B

The invention relates to a stackable lid for disposable containers, especially for aluminum foil packaging dishes, with a profile asymmetrical in relation to the center of the lid and with an exterior circumferentially, approximately at right angles to the lid surface and slightly inclined and with a gripping edge bearded edge edge, in which, at two opposite lower sides, are formed approximately rectangular / outwardly extending wing tab extensions having different lengths and provided with profusely positioned relative to each other. Such a lid is disclosed in German Publication No. P 31 46 676,

In order to improve the removal of a lid thus known from a stackable lid, the lid according to the present invention is characterized in that the longest gripper tab extension is divided into two side portions via a central recess.

The stackable lid according to the invention permits, at 180 ° rotation about an axis perpendicular to the plane of the lid of successive lids to be stacked, the realization of a three-point engagement with each lid, namely via the two side portions of the longest gripper wing extension, the two three-point support. points, and partly through an intervention in the middle of the shortest grab wing extension, the third point of the three-point support, so that the lids can safely be removed individually from the stack. The design according to the invention facilitates the manual removal, because the individual lids can be easily grasped by the gripper edge extensions. Furthermore, the design according to the invention enables machine stacking to be easily and safely removed.

The invention will be explained in more detail below with reference to the drawings, in which:

DK 159920 B

2 FIG. 1 is a top view of a lid formed in accordance with the invention / FIG. 2 shows a detail of a lid according to FIG. 1, and FIG. 3 additional embodiments of the lid. '

The same details are provided on the figures of the drawing with the same reference numerals.

The drawing shows the lid 2 with a circumferential, upwardly curved edge 4 and a closed downwardly-bent gripper tab strip-provided berry edge 6, which has two gripping tab extensions 7, 10 at two opposite lid sides.

The lid has a rectangular shape with rounded corners 12, 14, 16 and 18. The gripper tab extensions 7, 10 are formed at the short rectangle sides 20, 22. The gripper tab extensions may also be formed at the longest rectangular sides 24, 26 or at all sides.

The gripper tab extension 7 is formed longer than the gripper tab extension 10; thus, it protrudes farther from the berth edge 6 than the extension 10. The longest gripping tab extension 7 has a center-shaped recess 11 arranged in the middle of its width, which divides the gripping tab extension 7 into two 20 side portions 8 and 9. The recess 11 need not be arcuate, it may e.g. also be rectangular or triangular.

The shortest gripper tab extension 10, formed as one part, is positioned in the middle of the side 22 and has in the position shown in FIG. 1 shows practically a fully extended embodiment of a width corresponding to the maximum width of the recess 11. However, it may also extend along the entire rectilinear portion of the lid side 22 as shown in dotted line in FIG. 1. The greatest depth of the recess 11 corresponds practically to the 8 and 9 lengths of the two parts. The possible connection between the two

DK 159920 B

3 parts 8 and 9 must at least be narrower than the length of the gripper tab extension 10.

In this embodiment, it is ensured that the side portions 8, 9 of the gripper tab extension 7 in a lid stack in which successive lids are alternately rotated 180 ° extend out past the gripper tab extension 10 and that the shortest gripper tab extension 10 is placed in the middle. protrudes into the region of the arcuate recess 11 in the neighboring lid of the stack. Hereby, it is possible to realize a three-point engagement with the lid to 10 an automatic removal process of each lid from the stack, because each lid can be well defined at the three edges of the gripper extensions formed. The manual removal is also easier because the lid can be easily gripped by one of the grip tab extensions.

The recess 11 can, at a lid mounted on a container, simultaneously serve as the beginning of a circumferential tear line disposed in the lid area, with the portion 8 or 9 being gripped and the lid foil tearing outwardly towards the lid edge.

On the lid surface 28 is formed an asymmetrical profiling 30 in relation to the middle 20 of the lid, which in the drawing is in the form of a circular, decentralized elevation 32, from which radially exits eight ribs 34, which end at the vaulted rim 4. The beam-shaped ribs 34 are formed. is connected to each other via a circumferential, parallel and spaced elevation 36 extending parallel to the rim 4. The center x 38 of the circular elevation 32 lies on the longest center line 40 of the rectangular lid 2 at a distance from the center 42 of the lid. the shorter center line 43 or at any point outside the center 42 of the lid.

30 The elevations are on average trapezoidal, see fig. 2, and is preferably prepared by deep drawing process.

4

DK 1 59920 B

The profiling need not have the regular, manufactured in the drawing in relation to an axis 44. mirror-symmetrical design. Any desired shape is possible. Do not the cross sections of the elevations or the ribs need to be 5 trapezoidal? it may also be rectangular or vaulted.

The profiling can also consist of individual elevations distributed over the lid surface. Only care must be taken to ensure that these individual elevations are irregularly distributed or at regular intervals corresponding to one surface being arranged asymmetrically with respect to the center or axis of symmetry.

The gripper flap extensions may also be provided with profiling 46, as shown here, in the form of rib-like elevations in the length of the gripper flap extensions. Both elevations of the gripper tab-15 extensions are disposed in relation to the center 2 line 40 of the lid.

Preferably, the gripper tab extension 10, formed in one portion, has a center socket 48 which further supports the gripper flange extension. On both sides, as shown 20, an additional sieve 50, 52 may be spaced apart from the sieve 48.

The gripper tab extension 10 formed in one part, as shown in FIG. 3 may be formed as an arcuate tab 54 with evenly flanked lateral flanks 56 and 58 in the low rim. It may also be configured as a gripper fig or longitudinal ice 10 according to FIG. 1, refer to -25 number 59, however, with even lateral flanks 60, 62 transverse to the edge of the lid. The flanks may also be formed rectilinear with very slight inclination. The smooth flank transitions increase the rigidity of the gripper wing extension 10.

The transition of the flanks in the edge area of the lid can thereby, as shown, end with a clear distance to the round corners of the lid 14

DK 159920 B

5 and 16. However, the flanks can also start from the rounds, which is shown by dash-dotted line for a flank 64 of the gripper extension 59 in FIG. Third

As mentioned earlier, the gripper tab extensions 7 and 10 5 are designed so that a three-point engagement or support is achievable for each lid. The three points of the engagement or restraint are thereby formed by a point on each of the two parts 8 and 9 of the two-part gripper extension 7 and the third point of the one-part gripper extension 10 10 at its middle region, which is formed essentially by the middle sieve. 48th

In stacking, the lids designed according to the above description need only be rotated 180 ° relative to neighboring lids to ensure that the collars in the gripper tab extensions are mutually displaced to prevent the overlying lids from being squeezed into each other * This facilitates removal significantly.

In that the successive lids are rotated 180 ° relative to each other and stacked, on a lid stack side there will always alternately be a shorter, one-piece gripper tab extension 10 and the two parts 8 and 9 on the longest gripper tab extension 7 above each other. . The shortest, one-piece gripper tab extensions 10 are then available in the region of the longest gripper tab extensions 7, while the two portions 8 and 9 of these longest grip tab extensions 7 project relative to the shortest grip tab extensions 10 and are available. are grabbed or fixable from the side.

When now ensuring that at least the top two lids 30 in a lid stack are held by means of holding projections in the form of, for example, tooth rods, the top lids at any one time can be removed by at least at least at any time.

DK 159920 B

6 two suction cups without the danger of lifting the lid or several underneath it simultaneously. Preferably there are provided three devices with retaining projections for each of the two sides of the lid stack, of which three devices having retaining projections, e.g. in the form of tooth rods, the middle device engages with the shortest gripper tab extensions 10, and the two outer devices with retaining projections engage each of the two parts 8 and 9 on the longest gripper tab extensions.

10

Claims (3)

1. Stackable lid for disposable containers, especially for ready-to-use packaging trays, of aluminum foil, with a profile asymmetrical in relation to the center of the lid and with an outer circumferentially, approximately right-angled, lying on the lid surface and slightly inclined and inclined. having a gripping tab bearing edge (6), in which, at two opposite lower sides, there are formed almost rectangular, outward-facing gripping tab extensions (7, 10) having different lengths and having profusely positioned relative to each other, in that the longest gripper tab extension (7) is divided into two side portions (8, 91 via a center recess (113, 15 A lid according to claim 1, characterized in that the recess (11) simultaneously forms the beginning of a tearing groove in the peripheral area, A lid according to claim 1, characterized in that the gripper tab extensions (7, 10) form a three-point support, optionally in the form of three-point engagement, on which the lids can be placed on top of one another alternately rotated 180 ° about an axis perpendicular to the plane of the lid, which three point TS support is designed such that the portions (8 and 9) of the longest 25 gripper tab extension (7) on the one side of the recess (11) form two points and the shortest gripper tab extension (10) formed in one piece. on the opposite side of the lid practically in the middle forms the third point of this three-point support.