AT524178A1 - Method for producing a closure arrangement in a thermoforming process and closure arrangement produced therewith - Google Patents

Abstract

The invention relates to a method and a closure arrangement (1) formed from a film web (3) using this method in a thermoforming process. During the forming process, a closure frame part (7) that is continuous over the circumference, a closure cover (8) and a joint arrangement (9) are formed. Furthermore, a safety mechanism (10) is also formed, which comprises two first safety elements (11) on the closure cover (8) and two second safety elements (12) on the closure frame part (7), each arranged at a distance from one another. In a closed position of the closure lid (8) with the closure frame part (7), one of the first securing elements (11) and one of the second securing elements (12) are in a releasable securing engagement with one another. An actuating element (13) is arranged directly adjacent to one of the first securing elements (11).

Description

final arrangement.

Such closure arrangements, which are designed to close an open end area of a packaging container and have a safety mechanism as a so-called child safety device using two-hand operation, have become known from the registration documents of the European Union Intellectual Property Office with the registration numbers 002695106-0001 to 002695106-0008. These are closure arrangements that have been produced in an injection molding process. These closure arrangements have proven themselves in practice, but have the disadvantage that their entire manufacturing process, including the tooling costs, is expensive and complex. Since these closure arrangements together with the packaging containers are disposed of after the product contained therein has been completely removed, a large mass of plastic material is sent for disposal.

US 2009/0120942 A1 describes a simply designed closure lid for a food container that has been produced in a deep-drawing process

is. A piece of cutlery is also formed in the top wall of the closure lid during the thermal forming process. A private

tion mechanism with a two-hand operation is not known from it.

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despite the fact that there is a safety mechanism with two-hand operation.

This task is produced by a method and by the method

Ten closure arrangement solved according to the claims.

In the method according to the invention, at least one closure arrangement is formed in a thermoforming process. The closure arrangement formed in this way serves to close an open end region of a packaging container. A wide variety of goods can be accommodated in the accommodation space of the packaging container. In order to achieve a certain level of security against unintentional opening of the closure arrangement held or attached to the packaging container, the closure arrangement is secured by means of a child-proof two-handed operation. If this is unlocked, it can be opened if necessary and access to the recording room of the

Packaging container released.

The proposed procedure involves the following steps:

- Providing or extruding a film web made of a thermoplastically deformable material,

- Tempering the film web to its forming temperature,

- Reshaping of the film web to form the at least one closure arrangement, further provision being made in this case

- that during the forming process of the film web to form the at least one closure arrangement, a closure frame part that is continuous over the circumference, a closure lid and a joint arrangement are formed, by means of which joint arrangement the closure lid is pivotably connected to the closure frame part,

- Using a safety mechanism during the forming process

is formed, which security mechanism

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- comprises two second securing elements, which second securing elements are also arranged on the closure frame part on the side opposite the joint arrangement and spaced apart from one another, and one of the first securing elements and one of the second securing elements in each case in a closed position of the closure cover with the closure frame part together in one releasable securing engagement, and

- comprises two actuating elements, one of the actuating elements being arranged immediately adjacent to one of the first securing elements,

- Wherein a simultaneous actuation of the two actuating elements, the formed film web of the closure cover is elastically deformed and in each case the first and second securing elements apart from securing

to be intervened.

The advantage of the method steps selected here is that at least one closure arrangement can be produced from a film web in a thermoforming process in a forming work step or in immediately successive work sub-steps, which is cost-effective and, above all, requires less material than in an injection molding process. An even greater economic efficiency is achieved if several closure arrangements are manufactured and shaped more or less simultaneously in one work step. Due to the material savings caused by the thermoforming process, raw material resources are also saved. It is mostly one-way packaging that is to be closed by means of the closure arrangement. By choosing the appropriate material and by the elastic properties of the material, it is also possible to form the safety mechanism directly as an integral part of the film web. This means that no additional components are required for the movement mechanism to form the

securing mechanism required.

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the most suitable one can be selected.

A further advantageous procedure is characterized in that the film web provided or extruded is formed predominantly, in particular completely, from a primary material or predominantly, in particular completely from a secondary material. On the one hand, this means that an unused material can be used or, on the other hand, raw material resources through the

set of secondary material can be saved.

A variant of the method is also advantageous in which the provided or extruded film web is formed from a first layer and at least one second layer, which at least two layers form a multi-layer structure. This allows a higher combination possibility through the

Multi-layer structure are created.

Another procedure is characterized in that the first layer of the film web provided or extruded is formed from a secondary material and the at least one second layer is formed from a primary material. Depending on the arrangement of the second layer on the finished workpiece, the un-

various possible uses can be created.

Furthermore, a procedure is advantageous in which the proportion of the first layer of the secondary material comes from a value range whose lower limit is selected to be greater than 0% by weight and at most up to 90% by weight of the total mass of the provided or extruded film web amounts to. This increases the possibility of a high level of reuse of an already processed

th material created.

A further advantageous procedure is characterized in that

a second layer on each side of the first layer of the secondary material

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Primary material to be covered.

A variant of the method is also advantageous in which the proportion of the first layer of the secondary material comes from a value range whose lower limit is selected to be greater than 0% by weight and at most up to 80% by weight of the total mass of the provided or extruded film web amounts to. In order to

a high percentage can be recycled.

Another procedure is characterized in that the provided or extruded film web is formed with a further additional layer made of the material ethylene-vinyl alcohol copolymer (EVOH). In this way, the tightness can be improved or the diffusion rate minimized or, within certain limits, exceeded.

be prevented at all.

Furthermore, a procedure is advantageous in which a second layer made of the primary material is arranged or formed on both sides of the further additional layer made of the material ethylene-vinyl alcohol copolymer (EVOH). A better protective effect can thus be achieved for this further layer.

the.

A further advantageous procedure is characterized in that the film web is produced with an undeformed total initial film thickness, which comes from a film thickness value range whose lower limit is 0.3 mm, in particular 0.4 mm, and whose upper limit is 1.0 mm, in particular 0.8 mm. This means that the most suitable film thickness can be selected for every application. The lower the film thickness selected,

the more material can be saved.

A procedure is advantageous in which the closure arrangement is formed with a wall thickness which originates from a wall thickness value range, the lower limit of which is 0.1 mm, in particular 0.3 mm, and the upper limit of which is 0.8 mm.

in particular 0.6 mm. With the appropriate finished wall thickness

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be selected with a visible unlocking force.

A method variant is also advantageous in which the closure frame part is formed with a U-shaped cross section with a base web, a first leg and a second leg, the first leg running around the closure frame part on the inside and the second leg running around the closure on the outside -Frame part are arranged and a passage opening is defined by the first leg. In this way, a type of peripheral window frame can be created, which also additionally accommodates the receptacle, which usually has an edge flange

serves.

Another procedure is distinguished by the fact that the second securing elements are each formed as a depression in the first leg. The second securing elements become the formation of the indentations

formed directly from the film web as part of the safety mechanism.

A further advantageous procedure is characterized in that the closure cap is provided with a central closure cap wall part, a U-shaped peripheral wall part which is arranged on the edge and forms a groove and comprises an inner peripheral wall section, an outer peripheral wall section and one of the two circumferences The base wall part that connects the partial wall sections to one another and, if necessary, is formed with a support flange located on the outside of the outer circumferential partial wall section. In this way, a closure lid that belongs together is formed, which has sufficient inherent rigidity by means of the U-shaped peripheral wall part.

ability.

A variant of the method is also advantageous in which the outer peripheral wall section of the U-shaped peripheral wall part on the outside, on its side facing away from the closure cover wall part, has a cross-sectional dimension that fits into the first leg of the closure frame.

ment part defined through opening is formed. With that, a safer

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handle opening can be achieved.

Another procedure is characterized in that the first securing elements are each designed as projections, which are arranged on the outside on the outer peripheral wall section of the U-shaped peripheral wall part and, starting from this, are each formed protruding on the side facing away from the closure lid wall part. By shaping the projections, the first security elements are also formed directly from the film web as part of the security mechanism.

Furthermore, a procedure is advantageous in which each of the actuating elements is formed as a recess extending from the inner peripheral wall section of the U-shaped peripheral wall section into the central closure lid wall section. In this way, the inherent rigidity of the closure cover can be reduced in the area of the respective interacting first and second securing elements and, in addition, an exactly predefined area for the introduction of force to unlock the respective securing

elements are set.

A further advantageous procedure is characterized in that each of the recesses is designed to extend from the central wall part of the closure cover to the base wall part. This can be almost about the

entire height of the closure cover the engagement area for the initiation of

Entsicherungskraft be provided.

A variant of the method is also advantageous in which a latching device is also formed, which latching device comprises at least one first latching element and at least one second latching element interacting therewith, the at least one first latching element on the closure cover on the side facing the joint arrangement and the at least one second latching element on the

Closure frame part also on the facing of the hinge assembly

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a mutual support to each other can be achieved.

Another procedure is characterized in that the at least one first latching element is designed as a latching projection, which first latching element is arranged on the outside on the outer peripheral wall section of the U-shaped peripheral wall part and, starting from this, on the side facing away from the closure lid wall part is excellently trained. As a result, an integral part of the peripheral wall part of the closure lid is also created by the reshaping of the film web. So also can

here the use of materials can be reduced.

A further advantageous procedure is characterized in that the at least one second latching element is designed as a depression in the first leg. Due to the reshaping of the film web, an integral part of the outer peripheral wall section of the closure frame part can also be formed here.

will create. The use of materials can also be reduced in this way.

However, the object of the invention is also achieved by a closure arrangement produced according to the method for an open end region of a packaging container that is to be closed and is made of a thermoplastic material. The closure arrangement comprises - a closure frame part formed continuously over the circumference, a closure cover and a joint arrangement, by means of which joint arrangement the closure cover is pivotably connected to the closure frame part, - a safety mechanism, which in turn comprises the safety mechanism

- Two first securing elements, which first securing elements on the closure cover on the opposite side of the joint arrangement so-

how are spaced apart,

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- two actuating elements, one of the actuating elements being arranged directly adjacent to one of the first securing elements,

- Wherein a simultaneous actuation of the two actuating elements, the formed film web of the closure cover is elastically deformed and in each case the first and second securing elements apart from securing

to be intervened.

The advantage achieved in this way is that at least one closure arrangement can be produced from a film web in a thermoforming process in a forming work step or in immediately successive work sub-steps, cost-effectively and, above all, with less material than in an injection molding process. An even greater economy is achieved if several closure arrangements are simultaneously manufactured and shaped in one work step. Due to the material savings caused by the thermoforming process, raw material resources are also saved. It is mostly one-way packaging that is to be closed by means of the closure arrangement. By choosing the appropriate material and by the elastic properties of the material, it is also possible to form the safety mechanism directly as an integral part of the film web. This means that no additional components are required for the

movement mechanism required to form the safety mechanism.

For a better understanding of the invention, this is based on the following

Figures explained in more detail.

They each show in a greatly simplified, schematic representation:

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Fig. 1 shows a possible embodiment of a closure arrangement in its closed position, which can be placed on a packaging container in order to close its open end area, in

pictorial representation;

2 shows the closure arrangement according to FIG. 1 in its open position, in which the upper side of the closure cover and the underside of the

closure frame part are shown in diagrammatic representation;

3 shows the closure arrangement according to FIGS. 1 and 2 in its open position, in which the upper side of the closure frame part and the underside of the closure cover are shown in a diagrammatic representation

are;

4 shows the closure arrangement according to FIGS. 1 to 3 in its closure position

lung, in top view;

Fig. 5 shows a cross-section of the closure arrangement according to the lines V-V in Fig. 4, in a spaced arrangement of the closure de-

ckels from the breech frame part and enlarged view;

Fig. 6 shows a possible multi-layer structure of the film web, in transverse

cut.

As an introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numbers or the same component designations, it being possible for the disclosures contained throughout the description to be applied to the same parts with the same reference numbers or the same component designations. The position information selected in the description, such as top, bottom, side, etc., is related to the figure directly described and shown and these position

information to be transferred to the new position in the event of a change in position.

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In the following, the term "in particular" is understood to mean that it can be a possible more specific design or more detailed specification of an object or a method step, but not necessarily a mandatory, preferred embodiment of the same or a mandatory requirement.

must represent.

As used herein, the terms “comprising,” “comprises,” “having,” “includes,” “including,” “includes,” “containing,” and any

Variations on this cover a non-exclusive inclusion.

Another term that can also be used is “optional”. This means that this process step or this plant component is basically available, but is used depending on the conditions of use

can, but this does not have to be the case.

1 to 6 show a possible embodiment of a closure arrangement 1, it being mentioned that the cross-sectional shape can be selected in a wide variety of ways and depends on the cross-sectional shape of a packaging container 2 indicated in FIG. The closure arrangement 1 is designed to be able to be opened as required only by means of a so-called child-proof two-handed operation and after the actuation of its own safety mechanism, which will be described below, in order to gain access to the otherwise closed interior or receiving space of the closure.

to allow packing container 2.

Such child safety devices are based on having to perform an unlocking movement with both hands at the same time, which is difficult if not impossible for children to do. The goods that should be included and secured in the packaging container 2 are usually or preferably those that represent a source of danger. These can be cleaning agents, detergents, a wide variety of chemicals or similar hazardous substances. However, foodstuffs or any other goods could also be accommodated in the packaging container 2 and secured by means of the closure arrangement 1

will.

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It is provided here that the manufacturing process of the closure arrangement 1

a so-called thermoforming process.

In the introduction, the possible design variants of the film web 3 are described for the formation of the starting material, namely a film web 3, from a thermoplastically deformable material. Their possible layer structure, if this is not continuously formed from a single layer, is from

6 can be seen.

The material for the formation of the film web 3 to be shaped can be selected, for example, from the group of polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET),

Polyester, an alternative plastic or a compostable material. It can use both transparent and colored material

become this

The possible materials specified above as examples can be formed predominantly or essentially, in particular completely, from a primary material. However, it would also be possible for the materials that are possible and specified above as examples to be predominantly or essentially, in particular completely, formed from a secondary material. The term "predominantly" or essentially is chosen to express the fact that the respective base material or base material may contain small amounts of additives such as colors, stabilizers, catalysts, nucleating agents or processing aids or may be added to them

become or have been added.

A primary material is understood to mean that material which has not yet been used or shaped into an object.

This can also be referred to as virgin material or virgin material.

In order to achieve reuse of thermoplastic materials, objects that have already been made from them at least once are

material processed in a recycling process. This processed material is

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referred to as a secondary material, so as to better distinguish it from that

allow the original material described above.

The film web 3 shown in Fig. 6 in an enlarged cross section can also have a multi-layer structure and a first layer 4

and at least one second layer 5.

Furthermore, it can be advantageous to also combine a so-called recycling material (secondary material or secondary material) in combination with a primary material or the primary material to form the film web 3 . Mostly in the

Essentially identical materials per film web 3 combined with each other.

For example, the first layer 4 from the processed secondary material and

the at least one second layer 5 can be formed from the primary material.

The proportion of the first layer 4 made of the secondary material can come from a range of values whose lower limit is greater than 0% by weight and a maximum of up to 90% by weight of the total mass of the provided or extruded material.

ded film web 3 is.

It is also indicated that a second layer 5 made of the primary material can be arranged or formed on both sides of the first layer 4 made of the secondary material. The proportion of the first layer 4 from the secondary material can come from a range of values, the lower of which

Limit greater than 0% by weight is selected and a maximum of up to 80% by weight at the

total mass of the provided or extruded film web 3 is.

The arrangement of the layers 4, 5 in the layered structure of the film web 3 described above can be selected when the closure arrangement 1 is in use such that the first layer 4 made of the secondary material faces the receiving space of the packaging container 2 or on the side facing away from it is arranged. The first layer 4 made of the secondary material is located as an intermediate layer between the two second layers 5

from the primary material, this is rather irrelevant, the layer thickness or the

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Layer thickness of the two second layers 5 in certain tolerance limits

nander is preferably chosen to be the same.

In order to increase the barrier properties of the individual possible materials, a multi-layer structure of the film web 3 can also be selected. For this purpose, an additional further layer 6 or an additional further layer of the film web 3 can be formed from the material ethylene-vinyl alcohol copolymer (EVOH). Similar to the multi-ply or multi-layer structure described above, a second layer 6 made of the material ethylene-vinyl alcohol copolymer (EVOH) can be provided on both sides

Layer 5 may be arranged or formed from the primary material.

The film web 3 is preferably produced with an undeformed total initial film thickness, which comes from a film thickness value range whose lower limit is 0.3 mm, in particular 0.4 mm, and whose upper limit is 1.0 mm, in particular 0.8 mm , amounts to. After the forming process of the film web 3 to form the finished closure arrangement 1, this is formed with a wall thickness, depending on the overall height and the associated reduction in the initial film thickness, which comes from a wall thickness value range, the lower limit of which is 0.1 mm, in particular 0.3 mm , and its upper limit 0.8 mm, in particular 0.6

mm, is.

The polyesters belong to the large family of synthetic polymers. This has the advantage that in addition to the low material costs, a simple

Processability and good functional properties are ensured. Compared to polystyrene (PS), the material polypropylene (PP) has the

part of a greater shrinkage behavior.

The shaped body to be produced, namely the closure arrangement 1, is thereby subjected to the action of temperature and/or pressure from the forming temperature.

sensitive film web 3 formed.

In a thermoforming process or deep-drawing process, the

Objects, here the closure assembly 1, from the film web 3 of a

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thermoplastically deformable material formed by forming and cutting or separating from the film web. For this purpose, the film web 3 is to be provided or to be produced by an extrusion process immediately before the thermoforming process. Depending on its material, the film web 3 to be formed is tempered to the predetermined forming temperature. This can be done, for example, by heating the film web 3, which was usually at room temperature beforehand, or by utilizing the in the film web 3 by the directly upstream

Extrusion process introduced amount of heat done.

Once this has taken place, the forming tool, not shown in detail here, is closed in a known manner and the forming process is carried out, this possibly being carried out in directly successive forming sub-steps

can be.

The formation of the finished closure assembly 1 is best seen in Fig. 1

to see 5.

During the forming process of the film web 3 to form the at least one closure arrangement 1, a closure frame part 7 that is continuous over the circumference, a closure cover 8 and a joint arrangement 9 are preferably formed simultaneously. The closure cover 8 is pivotably connected to the closure frame part 7 by means of the joint arrangement 9 . These components form a coherent component. At the same time and at the same time or in the same work step, a securing mechanism 10 is also formed during the forming process. The safety mechanism 10 is intended to ensure the previously described two-handed operation for releasing the closure cover 8 from the closure frame part 7 . That relative position of the closure cover 8 with respect to the closure frame part 7, in which these are arranged one above the other and a passage through the closure frame part 7 is closed, is referred to as the closed position or safety position. If it is possible to reach through the breech frame part 7 and the breech cover 8 is in a position that has been lifted or pivoted away from the breech frame part 7,

this is referred to as the open position or operating position.

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The securing mechanism 10 comprises two first securing elements 11, which first securing elements 11 are arranged on the closure cover 8 on the opposite side of the joint arrangement 9 and spaced apart from one another. Furthermore, the safety mechanism 10 also includes two second safety elements 12, which are also arranged on the closure frame part 7 on the side opposite the joint arrangement 9 and spaced apart from one another. Under spaced apart is a distancing from each other in the circumferential direction or in the direction of the longitudinal extent of the

Closure frame part 7 understood.

If the closure cover 8 with the closure frame part 7 is in its closed position, one of the first securing elements 11 is also in a position that can be released if necessary with one of the second securing elements 12.

safety intervention.

Actuating elements 13 are also provided in order to enable unlocking of the first and second securing elements 11, 12, which are in securing engagement with one another. Thus, each of the first securing elements 11 has its own actuating element 13 . The respective actuating element 13 is directly adjacent to one of the first safety

tion elements 11 arranged.

The unlocking movement of the first and second securing elements 11, 12, which are in securing engagement with one another, is based on an elastic deformation or deforming movement of the completely formed film web 3 of the closure cover 8. The direction of actuation is represented by an arrow and

Weil directed in the direction of the joint assembly 9.

For its part, the closure frame part 7 has a U-shaped cross section with a base web 14 , a first leg 15 and a second leg 16 . The first leg 15 runs around the closure frame part 7 on the inside and the second leg 16 runs around the closure frame part on the outside

7 arranged. A passage opening 17 is defined by the first leg 15,

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through which, when the closure lid 8 is in the open position, access to the otherwise covered receiving space of the packaging container 2

is made possible.

The two legs 15, 16, together with the base web 14, delimit a peripheral receiving groove 18, in which, for example, a retaining edge or edge flange of the packaging container 2 can be received. With a corresponding design and arrangement of coupling elements, not shown in detail, the entire closure arrangement can also be securely held

1 can be achieved and realized on the packaging container 2.

In the present exemplary embodiment, the two second securing elements 12 of the securing mechanism 10 are each in the form of a recess 19 in the first leg

15 trained.

For its part, the closure cover 8 can comprise a central closure cover wall part 20 and a U-shaped peripheral wall part 22 forming a groove 21 adjoining it on the outside edge. The peripheral wall part 22 in turn comprises an inner peripheral wall section 23, an outer peripheral wall section 24 and a base wall part 25 connecting the two peripheral wall sections 23, 24 to one another be provided or formed. The support flange 26 can serve to close the cap 8 on

Closure frame part 7 to support.

The outer peripheral wall section 24 of the U-shaped peripheral wall part 22 is formed on the outside on its side facing away from the closure cover wall part 20 with a cross-sectional dimension that fits into the access opening 17 defined by the first leg 15 of the closure frame part 7 . A certain draft and an associated narrowing of the cross-section of the access opening 17 in the direction of the packaging container 2 and a design of the outer peripheral wall

Section 24 can be done.

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The two first securing elements 11 described above are each formed directly from the film web 3 as a separate projection 27 . Each of the projections 27 is arranged on the outside on the outer peripheral wall section 24 of the U-shaped peripheral wall section 22 and protrudes from this in each case on the side facing away from the closure lid wall section 20

educated.

Each of the actuating elements 13 is formed by a recess 28 in the central closure lid wall part 20 . In principle, the central closure lid wall part 20 forms a wall part of the closure lid 8 that is predominantly planar or runs essentially in one plane. Since the entire closure arrangement 1 is formed from the film web 3, individual wall parts or wall sections, apart from small differences in wall thickness, are caused by the forming process with a formed almost the same wall thickness to each other. The two recesses 28 molded into the central closure cover wall part 20 to form the actuating elements 13 each extend starting from the inner peripheral wall part section 23 of the U-shaped

th peripheral wall part 22 into the central closure lid wall part 20 .

Viewed in the direction of the depth or height of the cap 8 or in the normal direction with respect to the central cap wall part 20, each of the recesses 28 extends from the central cap wall part 20 to the base wall part 25 of the U-shaped peripheral wall part 22. This creates a free space in the locking cover 8 for the actuation and unlocking of the first and second

th securing elements 11, 12 formed or created.

In addition, the securing mechanism 10 can also include a latching device 29 . For example, the latching device 29 can have or comprise at least one first latching element 30 and at least one second latching element 31 interacting therewith. In the exemplary embodiment shown, the at least one first latching element 30 is formed or arranged on the closure cover 8 on the side facing the joint arrangement 9 . At least a second one

Latching element 31 is in turn also on the closure frame part 7 on the

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Joint assembly 9 side facing arranged or formed. Preferably two interacting first and second latching elements 30, 31 are also provided, which with respect to the respective interacting first and

second securing elements 11, 12 arranged opposite to these or

are trained.

Thus, each of the first latching elements 30 can be designed as a separate latching projection 32 . Provision can also be made for the at least one first latching element 30 to be arranged on the outside on the outer peripheral wall section 24 of the U-shaped peripheral wall section 22 and, starting from this, to protrude on the side facing away from the central closure lid wall section 20. The at least one second latching element 31 that interacts with it can also be configured as a separate depression 33 in the first leg 15 of the

Closure frame part 7 may be formed. 13

Finally, it should also be mentioned that the individual method steps and their chronological sequence do not necessarily have to take place in the order listed, but a different chronological sequence is also possible. Preferably, however, there is a successive and thus sequential chronological sequence of the method steps or partial method steps mentioned. In the shaping process, the closure arrangement 1 is shaped in one work step, with one step in time or one step in succession

sequence of individual steps is possible.

The exemplary embodiments show possible variants, whereby it should be noted at this point that the invention is not limited to the specifically illustrated variants of the same, but rather that various combinations of the individual variants with one another are also possible and this possibility of variation is based on the teaching on technical action through the present invention in Ability to work in this technical field

expert lies.

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The scope of protection is determined by the claims. However, the description and drawings should be used to interpret the claims. Individual features or combinations of features from the different exemplary embodiments shown and described can represent independent inventive solutions. The independent inventive solutions

underlying task can be taken from the description.

All information on value ranges in the present description should be understood to include any and all sub-ranges, e.g. the information 1 to 10 should be understood to mean that all sub-ranges, starting from the lower limit 1 and the upper limit 10, are also included , ie all subranges start with a lower limit of 1 or greater and end with an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

Finally, for the sake of order, it should be pointed out that in order to better understand the structure, some elements are not to scale and/or enlarged

and/or have been reduced in size.

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Reference List

1 latch assembly 29 latching device

2 packaging container 30 first latching element 3 film web 31 second latching element 4 first layer 32 latching attachment

5 second layer 33 well

6 more layer

7 closure frame part

8 locking caps

9 joint arrangement

10 security mechanism

11 first fuse element

12 second securing element

13 actuator

14 base bar

15 thighs

16 thighs

17 reach-through opening

18 receiving groove

19 deepening

20 locking cover wall part

21 slots

22 perimeter wall portion

23 Inner Perimeter Wall Section

24 outer peripheral wall section

25 base wall part

26 support flange

27 protrusion

28 recess

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Claims (23)

patent claims 1. A method for producing at least one closure arrangement (1) in a thermoforming process for an open end region of a packaging container (2) that is to be closed, in which the closure arrangement (1) can be opened as required by means of a child-proof two-handed operation, and in which the following steps are carried out: - Providing or extruding a film web (3) made of a thermoplastically deformable material, - Tempering the film web (3) to its forming temperature, - Reshaping the film web (3) to form the at least one closure arrangement (1), characterized, - that during the forming process of the film web (3) to form the at least one closure arrangement (1), a closure frame part (7) that is continuous over the circumference, a closure lid (8) and a joint arrangement (9) are formed, by means of which joint arrangement (9 ) the locking cover (8) is pivotably connected to the locking frame part (7), - that a securing mechanism (10) is also formed during the forming process, which securing mechanism (10) - comprises two first securing elements (11), which first securing elements (11) are arranged on the closure cover (8) on the side opposite the joint arrangement (9) and spaced apart from one another, - comprises two second securing elements (12), which second securing elements (12) are also arranged on the closure frame part (7) on the side opposite the joint arrangement (9) and spaced apart from one another, and one of the first securing elements (11) and one of the second securing elements (12) are in a releasable securing engagement with one another in a closed position of the closure cover (8) with the closure frame part (7), and - Two actuators (13) comprises, each one of the N2020/21 500-AT-00 Actuating elements (13) are arranged directly adjacent to one of the first securing elements (11), - with a simultaneous actuation of the two actuation elements (13), the formed film web (3) of the closure lid (8) is elastically deformed and the first and second securing elements (12) be brought out of security engagement. 2. The method according to claim 1, characterized in that the material of the provided or extruded film web (3) from the group of polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), polyester, a alternative plastic or a compostable material is chosen. 3. The method according to claim 1 or 2, characterized in that the provided or extruded film web (3) predominantly, in particular completely, from a primary material or predominantly, in particular completely is formed from a secondary material. 4. The method according to claim 1 or 2, characterized in that the provided or extruded film web (3) is formed from a first layer (4) and at least one second layer (5), which has at least two layers (4) form a multi-layered structure. 5. The method according to claim 4, characterized in that the first layer (4) of the provided or extruded film web (3) consists of a secondary material and the at least one second layer (5) consists of a primary material substance is formed. 6. The method according to claim 5, characterized in that the proportion of the first layer (4) made of the secondary material from a range of values originates, the lower limit of which is greater than 0 wt.% Is chosen and a maximum of up to 24 / 35 N2020/21 500-AT-00 90% by weight of the total mass of the film web (3) provided or extruded. 7. The method according to claim 4 or 5, characterized in that on both sides of the first layer (4) of the secondary material in each case one second layer (5) is arranged or formed from the primary material. 8. The method according to claim 7, characterized in that the proportion of the first layer (4) comes from the secondary material from a value range whose lower limit is greater than 0 wt.% Is selected and a maximum of up to 80 wt.% Total mass of the provided or extruded film web (3). 9. The method according to any one of the preceding claims, characterized in that the provided or extruded film web (3) is formed with a further additional layer (6) made of the material ethylene-vinyl alcohol copolymer (EVOH). 10. The method according to claim 9, characterized in that on both sides of the further additional layer (6) made of the material ethylene-vinyl alcohol copolymer (EVOH) in each case a second layer (5) made of the primary material arranged or formed. 11. The method according to any one of the preceding claims, characterized in that the film web (3) is produced with an undeformed total initial film thickness, which comes from a film thickness value range whose lower limit is 0.3 mm, in particular 0.4 mm. and its upper limit is 1.0 mm, in particular 0.8 mm. 12. The method according to any one of the preceding claims, characterized indicates that the closure arrangement (1) is formed with a wall thickness N2020/21 500-AT-00 which originates from a wall thickness value range, the lower limit of which is 0.1 mm, in particular 0.3 mm, and the upper limit of which is 0.8 mm, in particular 0.6 mm, is. 13. The method according to any one of the preceding claims, characterized in that the closure frame part (7) is formed with a U-shaped cross section with a base web (14), a first leg (15) and a second leg (16), wherein the first leg (15) is arranged circumferentially on the inside of the closure frame part (7) and the second leg (16) is arranged circumferentially on the closure frame part (7) on the outside and is separated from the first leg kei (15) a passage opening (17) is defined. 14. The method according to any one of the preceding claims, characterized in that the second securing elements (12) each as a depression (19) are formed in the first leg (15). 15. The method according to any one of the preceding claims, characterized in that the closure lid (8) with a central wall part (20) of the closure lid, a U-shaped peripheral wall part (22) arranged on the edge side and forming a groove (21). an inner peripheral wall section (23), an outer peripheral wall section (24) and a base wall section (25) connecting the two peripheral wall sections (23, 24) to one another, and optionally with a base wall section (24 ) located support flange (26) is formed. 16. The method according to claim 15, characterized in that the outer peripheral wall section (24) of the U-shaped peripheral wall part (22) on the outside on its side facing away from the closure lid wall part (20) with a cross-sectional dimension that fits into the first leg ( 15) of the closure frame part (7) defined reach-through opening (17) is trained. N2020/21 500-AT-00 17. The method according to any one of the preceding claims, characterized in that the first securing elements (11) are each designed as projections (27) which are arranged on the outside on the outer peripheral wall section (24) of the U-shaped peripheral wall part (22). are and based on this in each case from the closure cover wall part (20) opposite side are formed prominently. 18. The method according to any one of the preceding claims, characterized in that each of the actuating elements (13) as a recess (28) starting from the inner peripheral wall section (23) of the U-shaped peripheral wall part (22) in the central closure lid wall part (20) into is formed extending. 19. The method according to claim 18, characterized in that each of the recesses (28) starting from the central closure cover wall part (20) to towards the base wall part (25) is formed to extend. 20. The method according to any one of the preceding claims, characterized in that a latching device (29) is also formed, which latching device (29) comprises at least one first latching element (30) and at least one second latching element (31) interacting therewith, the at least one first latching element (30) on the closure cover (8) on the side facing the joint arrangement (9) and the at least one second latching element (31) on the closure frame part (7) also on the side facing the joint arrangement (9) turned side. 21. The method according to claim 20, characterized in that the at least one first latching element (30) is designed as a latching projection (32), which first latching element (30) is on the outside on the outer peripheral wall section (24) of the U-shaped peripheral wall section (22) is arranged and, starting from this, on the wall part (20) facing away from the closure cover Page is formed outstanding. 271735 N2020/21 500-AT-00 22. The method according to claim 20 or 21, characterized in that the at least one second latching element (31) is formed as a depression (33) in the first leg (15). 23. Closure arrangement (1) for an open end region to be closed of a packaging container (2) made of a thermoplastic material, characterized in that - that the closure arrangement 1 according to one of claims 1 to 23 is made from a film web (3), - that closure arrangement 1 comprises a closure frame part (7) which is continuous over the circumference, a closure cover (8) and a joint arrangement (9), by means of which joint arrangement (9) the closure cover (8) can be pivoted with the closure frame part (7). is connected, - that a safety mechanism (10) is provided, which includes the safety mechanism (10). - two first securing elements (11), which first securing elements (11) are arranged on the closure cover (8) on the side opposite the joint arrangement (9) and spaced apart from one another, - Two second securing elements (12), which second securing elements (12) are also arranged on the closure frame part (7) on the side opposite the joint arrangement (9) and spaced apart from one another, and one of the first securing elements (11) and one of the second Securing elements (12) are in a releasable securing engagement with one another in a closed position of the closure cover (8) with the closure frame part (7), and - two actuating elements (13), one of the actuating elements (13) being arranged directly adjacent to one of the first securing elements (11), - with a simultaneous actuation of the two actuating elements (13), the formed film web (3) of the closure lid (8) is elastically deformed and the first and second securing elements (12) be brought out of security engagement. N2020/21 500-AT-00