DE3213191C2 - Tamper-evident security lock - Google Patents

Abstract

In this container, the upper edge of the container (1) and / or (2) bars (5) are formed on webs (2a), which when the container is closed with the lid, with the securing web (12) formed on the lid, via cams (12a and 5a) wedge frictionally. As a result, the cover can only be removed by tearing the cross-sectional area (12III) of the securing web (12), thereby identifying a container that has not yet been opened or that has already been opened, and ensures a tamper-evident security seal.

Description

This invention relates to a container with a lid made of plastic, a container in the closed state Tamper-evident security lock that cannot be removed without destroying a locking and sealing system shark. The container and lid consists of an upper edge of the container and one of these by ufid / uutrr under or eifiseriiitipperidcn ceilingifäfid. with The locking and locking device manufactured in one mold using the injection molding process with the bucket or lid in the edge area Locking ribs. The packaging industry needs the input for different filling goods and filling volumes of sealed storage and transport containers such as buckets. Buckets and the like. This applies to dangerous substances, as well as for the food sector, where inadvertent opening and touching of the filling goods should be excluded. One uses, among other things, a lead seal on the container and lid

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Sealed or sealed straps made of plastic and / or metal. There are also containers with foils or plates made of aluminum or plastic in welded in an additional operation and thus tightly closed and secured.

Since these are additional parts and operations, such tamper-evident closures expensive.

The DOS 21 55 664 describes a closure in which 2 parts i, via a hinge to a captive Unit were created in one piece, and a tear-off strip mi ', an external locking device is.

Closures of this type of the prior art have the disadvantage that their external securing or tear-off elements are damaged during transport even before they are actually opened.
When closing, the handles and locks must exactly match the corresponding slots or dergi. be aligned and adjusted.

The disadvantage of these closures is that the latching elements are only slightly abe ^ even but with play or with necessary holes in the

ίο Lock the snug fit. This also makes it possible to open without Breakage of the securing elements is possible.

From the French patent specification 24 74 452 another closure is known, which grid, notches or has pawls that interact and lock accordingly with parallel walls. Here too Loosening or opening by tearing off or breaking lines of weakness is possible. The Rast ~ r vider The like. Are on the container side and / or cover side accessible walls attached or attached as an additional part.

The aforementioned containers with lids have the disadvantage of having additional sealing and locking elements to be costly and cumbersome to use.

In the case of the containers with lids and attached tear tabs or AD-cuts and handling, there is a sealing effect no longer or insufficiently available after opening. Furthermore is with these Versions of the containers and lids of the stand of

JO technology, the often required high exposure Stacking the containers on top of one another on the lids is not sufficient because of the weakening lines and notches available. These possibilities shown in this way are limited to smaller closures and lids and

so cannot be used with containers with large volumes. Ultimately, however, can not e ^ nem 'inktionstüchtigen called Gütegarantie- or tamper-proof seal even at the Aufreißhandhaben provided with fuses and closure techniques

4n be spoken. The fact that with the possibilities shown a closure of the Containers and the vessels or the like. With one of the containers unier-and / or snapping-in cover edge or snaps and the like. Which takes place

■ »·> stretch when opening the lid or that the container deforms elastically, which means that it snaps over and Uncovering is possible. without the weakening lines. Notches and the like / u break. inevitably brings with it that a cover and

ίο open the vessels, be it on the handle itself or otherwise on the edge of the lid or the catches, is possible without any special tricks or help. It is true that the handles are torn off and torn open

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5 ^r > the elasticity of the plastic makes it very easy to open such packaging unnoticed, since by simply bending back the locking or rear locking elements, opening and closing can take place without breaking and thus there can be no question of a so-called quality seal.

The aim of the present invention is to provide a container with a tamper-evident security lid with the guarantee that the container cannot be opened for the first time unnoticed, unauthorized.

t> 5 Furthermore, on the tool side for the bucket and Cover in one injection molded one-piece locking and sealing options that are easy to manufacture be. Among other things, it should be one of aromatization

adapted packing and closing system created that can be handled automatically from production to filling and transport.

According to the invention, the stated aim is achieved by a container with an upper edge of the container, in which additional locks are molded with a support wall and around the edge of the container and / or encompassing ceiling! with molded on the inside and form and in the closed state non-positively tensioned securing bar. Based on the following exemplary embodiments, the invention is explained in more detail and recorded Es ι cig *

F i g. I a sectional drawing of the bucket τ ¹ · cover edge design of a AusfiihrungsLeis' IELS.

F i g. H the sectional drawing of a newer embodiment example E. the edge of the bucket and the ceiling,

F i g. II! an alternative unit and cover edge frame.

Container and lid u "^ prior art consist of the container wall 1 and 2 with integrally formed walls 3 and 4 and the Deckeliiächen 7, S, 9, and 10 and a snap bead 11. There are a plurality of similarly shaped edge and Wulstausführungen. Also are There are different container and lid shapes in terms of their base area. The indicated bucket and lid edge profiles and walls are available in round, oval, rectangular and square bucket shapes.

The closing of such containers with the lid is done in such a way that the lid with the Snap bead Π is printed over the bucket wall 4 or the wall section 6. This is done in the elastic area of the plastic. In the end position, the wall 4 and the snap bead 11 are back in Original state or in a clamping or snap connection to each other. The container is opened by lifting and pulling the snap bead 11 from the end position over the wall 4. That open and Closing is in these embodiments of the stand the technique can be repeated as often as required.

To prevent unnoticed opening or damage to safety elements and / or to avoid grids, the grid and safety elements are integrated in the bucket and ceiling edge and thus housed protected.

Eg is nath F i g. I and II neither the safety bar 12 the bolt 5 is still accessible

A securing web 12 is formed on the wall 9 of the cover. This securing web 12 is designed as a closed king and thus forrristable. This has the further advantage that, as a closed ring, no adjustments need to be made to the bolts 5, since the web 12 always engages with the bolt 5. The lid can be checked at any point. One or more cams 12a via the securing web i2nai. In the closed state, these cams 12a reach under the cams 5a of the bolt 5. The bolt 5 is integrally formed with a web 2a on the wall 2 or, according to another exemplary embodiment, on the wall 4. The web 2a is designed as a hinge or segment with the hinge points 2a ¹ and 2a ″ and merges downward into the bolt 5 with a tapered cross section in order to enable simple demolding without a slide with mold cores known per se.

When pressing the lid on the container lies

first the wall side 12 'on the wall side 4' or is introduced centrically through the bevel 4a and 12c.

The bevels 4a and 12c act as a funnel principle and enable the utilization of a larger tolerance field during production. The tapered cross-section of the bolt 5 and the hinge points 2a 'and la " additionally enable simple demolding from the injection molding tool by resilient molding. The position of the bolt 5 is in its original state in the demolded state Securing web 12 with the wall side 12 'along the wall side 4' and push the bolt 5 resiliently and slightly back towards the wall 2 via the cams 12a and the cams Sn . This goes as far as the wall 9 of the cover at the end point of the wall The further closing and locking is done by further pressing down the point 10 'and 9 "and thus further engaging the snap bulb 11 under the wall 4 or the wall section 6. At the same time, the fwjken 5a also snap by springing back the bolt 5 in the Nockei. 12a to a common point of intersection α . This wii. ^{1 made possible} by the inclined position of the surfaces 12 "and 5" without surface friction occurring. The container is tightly and firmly closed by the installation and pretensioning of the lid towards the container edge and by the securing bar 12 and the bar! 5 locked and wedged positively and non-positively between the walls 4 and 2. An additional sealing and / or strain member is formed in a further embodiment by the conformation of a shoulder 2b of the wall. 2

The container is opened using the known handles formed on the wall 10 or directly on the wall 10 by lifting the bead 11 off the wall 4 or the wall section 6. The tensile force exerted on the wall 10 also increases the Vv and 9 and thus the securing web 12 acted upon by tensile forces. These tensile forces cause wedging COS securing web 12 by the latch 5. The keyed cams 12a and 5a pull the bolt 5 by train on the lock bar 12 toward the wall 4 and produced thereby additional compressive stresses and Fiächensprcisungcn to d ^ m joint! Intersection a. the surfaces 12 "and 5" and the wall sides 12 'and 4' as well as the wall 4 and 2 and thus wedge the locking mechanism the more the more tensile forces are used to open it.

If the wall 10 is pulled further, the permissible tension in the cross section 12 '"is exceeded and the securing web 12 tears off at the cross-section 12'". The individual loaded cross-sections of cams \ 2a and 5a. Dip cross-sections of the wall 4 and the bolt 5 and the web 2a are larger than the Abreiüquerschniit 12 '"

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In any case, the cross-section 12 '"tears at ... \ binnen. Since the opening of the container ^{begins at the handle or at a part of the v} ,' and 10, there are initially low tear-off forces for the separation of the securing web 12 from the wall 9. The lid can be used as often as required for closing and opening after the securing bar 12 has been separated and, as a closed unit, has the advantages of a stable and sealing after closure. An unauthorized container can be recognized by the lid, which is easy to open, because of the resistance of the securing web 12. This alone is sufficient to recognize a container that has already been opened for the first time

In order to still create an optical and acoustic feature, several pockets 9a were made in the wall 9 Shaped above the safety web 12. The pockets 9a are blind holes and have a closed one Wall to the web 12. The pockets 9a are at certain intervals over the circumference above Bridge 12 distributed. When the web 12 is torn off in cross section 12 '", the blind hole bottom wall also tears. The torn blind hole bottom wall indicates that the container lid has already been opened Top. In addition, the pockets 9a produce a through the tearing of the blind hole bottom wall Distances between the pockets 9a caused audible rattle. The attachment of just a few pockets 9a ensures sufficient stability on the wall 9.

The separated safety bar does not interfere in the bucket, because it remains wedged and locked in the edge of the bucket. It also has the advantage when pouring out filling goods as a drip edge to avoid spilling and dripping.

As in a further exemplary embodiment, the bolt 5 can also be designed as a double bolt and is then molded onto the wall 4 and the wall 2. The cams 12a and 5a or the surfaces 12 "and 5" can be reduced by this possible doubling of the latch. This results in easier removal of the plastic parts from the injection molding tool.

It is still technically possible. To manufacture containers with tamper-evident security locks, in which, as in a further embodiment, the bolt 5 on the wall 8 and / or 9/10 and the Securing bar 12 is arranged on the wall * and / or 3/2. In principle, this is the locking principle with reverse container and lid operation as described.

For the stacking of the individual lids and their automatic handling during packing and closing, point 10 'is offset to point 10 "from the inside of the container. This enables stacking and centering In order to avoid wedging into one another, the containers are made by means of ribs which are molded onto the wall 4 and / or 3. These ribs are often constructed at the same time as attachments for trap brackets.

To support and stabilize the edge of the bucket can continue to ribs from the edge of the bucket to the The bucket wall can be molded on.

With the container edge with tamper-evident security lock, containers of any size and Equip content.

For this purpose 3 sheets of drawings

Claims (4)

Patent claims: 1. Originality security no more for you Container closable by a lid, with latching elements molded onto the lid edge, which are used for concealed receptacle in a container edge-side arranged with to the lid latching elements corresponding locking means provided abutment positively and non-positively engage and only can be opened by destroying locking parts, characterized in that that lid edge side a. the safety lock (12) covering, with an additional, the Resealable, known snap edge (11) provided, the container edge (2, 3, 4, 6) with the latching means (5) arranged therein overlapping lid rim bead (θ, ίθ, ίΐ) is provided is 2. Origina'täts security lock after
Claim 1. characterized in that the container edge flange (3) in the region of the bolt (5) is cut out interrupted in a manner known per se. 3. Tamper-evident security closure according to claim 1, characterized in that the outer upper edge (9 ") of the lid rim bead (9) is arranged higher than the inner upper edge (9 ^ of the lid rim bead (9). 4. Tamper-evident security lock according to claim 1, characterized in that on the lid rim bulge (9) some designed as a blind hole pockets (9a) are attached, dpren the blind hole bottom wall is torn when opening.