EP3854715A1 - Paper-based container with closure system, blank and method for manufacturing a paper-based container with closure system - Google Patents

Abstract

The present invention relates to a paper-based container (10), comprising a base body (11) with a front wall (12), a rear wall (13), at least two side walls (14a, 14b) and a base (15), one on the rear wall ( 13) hinged lid (17) which closes the container (10) in a closed state and releases the interior of the container (16) in an open state, the container (10) having at least a locking system (18) comprising at least one latching lug ( 19), at least one latching lug recess (20) corresponding to the latching lug (19) and at least one actuating element (21) which is operatively connected to the latching lug (19) and which is designed to switch the latching lug (19) between a locking position and an opening position to effect, wherein the locking lug (19) and the actuating element (21) are arranged in the cover (17) and the locking lug recess (20) is arranged in the front wall (12), wherein in in the closed state, the latching lug (19) in the locking position engages the latching lug recess (20) in such a way that the cover (17) is locked on the base body (11) to prevent it from opening automatically.

Description

The present invention relates to a paper-based container, in particular a child-resistant container, comprising a base body with a front wall, a rear wall, at least two side walls and a base, which enclose a container interior, a lid which is hinged to the rear wall and which closes the container in a closed state and releases the interior of the container in an open state, the container having at least one paper-based closure system.

The invention further relates to a blank for such a container and to a method for producing such a container from a blank.

In the prior art, containers made of plastics with child safety devices are known in particular. Such containers provided with child safety devices are used, for example, to store pharmaceutical products or detergents or cleaning agents. Plastics are among the most versatile materials for manufacturing industrial goods. Containers made of plastics usually have high mechanical strengths, have a favorable ratio of strength and density, and are highly resistant to chemicals. Furthermore, containers made of plastics are comparatively inexpensive to manufacture and only require a low level of vertical integration.

Containers with child safety lock are used primarily for the transport and storage of consumer goods, in particular from the field of packaged detergents or cleaning agents and pharmaceutical products. Such detergents or cleaning agents are available to the consumer in a wide variety of forms. These can, for example, be present in the containers in packaged or unpackaged form, which means that the washing or cleaning agents, in addition to powders and granules, also cleaning agent concentrates in the form of extruded or pelletized Compositions include. These solid, concentrated or compressed dosage forms are characterized by a reduced volume per dosage unit and thus lower the costs for packaging and transport. Furthermore, in recent years the detergent or cleaning agent producers have switched to offering such washing or cleaning agents in liquid, packaged form in order to add one portion per washing or cleaning cycle. A popular form is pillow packaging with, for example, two to four chambers, each of which is filled with liquid detergents or liquid cleaning agents. The chamber system offers a needs-based solution for different challenges when washing or cleaning. When in contact with water, the chambers develop their full washing or cleaning performance in a targeted manner. The pillow packaging has a water-soluble film, which makes it quick and easy to use. The separate option of portioning detergents or cleaning agents also fulfills the consumer's desire for simple dosing. The corresponding means are comprehensively described in the prior art. Stable, safe and lightweight, resealable containers are required for convenient storage or removal of such detergents or cleaning agents. Paper-based containers usually combine such properties only unreliably.

In the area of stocking commercial quantities of these detergent or cleaning agent tablets, plastic containers in particular are known in different material thicknesses, shapes and with a wide variety of closure and locking mechanisms. In recent years, however, consumers and companies have increasingly made efforts to avoid plastic-based products or to substitute them with renewable raw materials. Containers made from renewable raw materials, for example paper-based containers, however, due to the nature of the starting material, show significant deviations in production and in the technical properties compared to conventional plastic-based containers. Paper-based containers are not thermoplastically deformable and have limited durability and resistance to water, for example. Paper-based containers therefore have fundamental differences compared to plastic containers in terms of design and manufacturing method.

However, there are already a large number of paper-based containers with locking systems for the most varied of uses. Such paper-based containers are used in particular as large-format detergent packaging containers or for transporting or stowing general goods or merchandise. Corresponding packaging can, however, also be found in the field of cardboard boxes that have a self-closing mechanism, for example cardboard boxes for confectioners' needs.

However, the known paper-based containers do not meet the requirements of providing a reliable locking system, which in particular includes a child-proof locking system according to ISO 8317 (2015) and at the same time can be easily operated by an adult. In addition, such paper-based containers often only have poor rigidity and strength properties, in particular with regard to torsional forces acting on the container.

From the EP 1 783 058 For example, a child-resistant packaging container with a box body is known. The packaging container has a locking element with latching tabs which lie against the base body and which are accessible and unlockable via access openings formed in a cover. The latching tabs with associated access openings are arranged in pairs at a corner and can be unlocked with the thumb and forefinger of an adult's hand. Due to the latching tabs attached to the box body, the locking element is susceptible to damage when it is opened and closed several times, since the latching tabs can easily be bent or destroyed, especially if the lid is improperly closed. In addition, the locking element, which is arranged in pairs at a corner and can be unlocked with the thumb and forefinger of the hand of an adult, is complicated in design and, for example, not suitable for adults with small gaps between thumb and forefinger.

Other paper-based containers with child safety locks are also often awkward to use, in that, for example, intuitive opening is not possible for the intended adult user. Furthermore, paper-based containers with a locking system, in particular with a child-proof locking system, often only have a short service life, that is to say that The locking system is no longer secured against unwanted opening by children after just a few opening or closing processes, as individual container elements do not have the desired durability due to the qualitative nature of the raw materials used.

From the prior art, no containers made of renewable raw materials are known that provide a reliable and constantly operable locking system, in particular according to ISO 8317 (2015), which is in particular secured against unwanted opening by children while at the same time the container has sufficient rigidity properties.

The present invention was therefore based on the object of providing a container which, on the one hand, is made of a stable basic shape from renewable raw materials and, on the other hand, has a reliable and easy-to-use locking system that prevents unwanted opening and at the same time can be produced simply and in large numbers .

The object is achieved according to the invention with a paper-based container, in particular a child-proof container, of the type mentioned at the outset, the closure system comprising the following:
At least one latching lug, at least one latching lug recess corresponding to the at least one latching lug and at least one actuating element which is operatively connected to the at least one latching lug and is designed to effect the change of the at least one latching lug between a locking position and an opening position, the at least one latching lug on and the at least one actuating element are arranged in the cover and the at least one latching lug recess is arranged in the front wall, in particular in the inside of the front wall, wherein in the closed state the at least one latching lug is in the locking position in engagement with the at least one latching lug recess, that the cover is locked on the base body to prevent it from opening automatically.

Such a paper-based container in particular meets the requirements of ISO 8317: 2015 for resealable child-resistant packaging.

Paper-based containers in the context of the invention are to be understood as meaning containers which are predominantly produced from paper-based raw materials, in particular paper-based raw materials made from plant fibers. Paper-based containers preferably use cardboard or, in particular, corrugated cardboard as the starting material, although cardboard or paper containers according to the invention can also be realized. The paper-based containers preferably have a rectangular plan, although a pentagonal or polygonal plan with a correspondingly larger number of side walls can potentially be implemented. There are thus containers with a different number of side walls possible. In particular, containers with two, three, four or six side walls can be used. Such containers with two side walls and a front wall and a rear wall are particularly preferred. The container is preferably provided to secure packaged goods, in particular detergents or cleaning agents, from unwanted access by children.

The essential difference compared to paper-based containers with locking systems according to the prior art is that, in the locking system according to the invention, the entire movement mechanism is integrated in the hinged lid. The locking system is designed as a slide-swivel mechanism. A combination of the locking system and the lid, in which its movement mechanism is housed, with the base body, which defines the container interior of the paper-based container, makes it possible to stow and conveniently remove goods, in particular detergents or cleaning agents. Due to the paper-based raw material, the container can be manufactured cost-effectively and automatically with a low net weight of the container at the same time. Due to the selection of raw materials, the container is recyclable and thus remains in the value chain.

Due to the slide-pivot mechanism of the container, which requires that the at least one latching lug be moved out of the at least one latching recess by means of the actuating element and must be held in the open position while the pivoting movement of the lid is carried out, a child-proof design of the Given container. The child-safe functionality is given in particular by the fact that the actuation of the actuating element requires a basic understanding of the mechanical movement of a body in combination with coordinative abilities to open the lid. To transfer of the lid from the closed state to the open state, preferably both hands are used. The lid is opened with one hand, thereby releasing the interior of the container, and the second hand is used to fix the container, for example against undesired movement. More preferably, the first hand can actuate the actuating element and hold it in position, and the second hand opens the lid by means of a pivoting movement, thereby releasing the interior of the container.

The interior of the container is preferably delimited in the upper region of the container by a partially encircling lid edge into which the lid can be pivoted at least in some areas.

In contrast to conventional paper-based containers with a locking system, in the container according to the invention all locking and unlocking means, i.e. the at least one latching lug and the at least one actuating element, are located on or in the lid, whereby the base body only houses the latching lug recesses of the locking system . The technically complex components of the closure system are thus arranged on a relatively small area of the lid, which leads to a low complexity of the entire container and reduces the susceptibility to destruction. The base body can also be produced in this way in simple process steps, which contributes to cost-effective production.

The at least one latching lug is preferably made of a paper-based material, but in a preferred embodiment it can be combined or treated with other materials in order to reduce signs of wear such as deformations and to further increase the durability of the container. The at least one locking lug is preferably an elongated flat element. The at least one locking lug is particularly preferably a partial extension of one side of the cover, more preferably an extension in the direction of the front wall.

The at least one locking lug recess is preferably formed by openings on the front wall of the paper-based container. The size of the openings corresponds at least to the dimensions of the at least one locking lug.

The at least one locking lug recess is preferably formed on the inside of the front wall and is not accessible from the outside. In a particular embodiment, the latching recesses can be formed exclusively or additionally in at least one of the side walls, the at least one actuating element and the at least one latching nose then being formed in such a way that they are formed in the course of the side walls.

The at least one actuating element is preferably also made of a paper-based material, but in alternative embodiments can be combined or treated with other materials in order to reduce signs of wear such as deformations and to further increase the durability of the container. The at least one actuating element can in principle have any shape and texture in order to come into engagement with the at least one latching lug in order to move it back and forth between the locking position or the opening position.

The structure of the container according to the invention ensures that the container can be reliably closed and opened, that is to say that the lid of the container is secured against undesired automatic opening by means of the locking system, in that the at least one latching lug locks the lid, when the at least one locking lug is arranged in the at least one locking lug recess.

The arrangement of the at least one actuating element and the at least one latching lug in the lid of the container enables a compact design with high reliability at the same time. The arrangement of the at least one actuating element in the lid also ensures that no undesired actuation occurs, for example when the container is moved. Due to its arrangement, the actuating element can be actuated in a simple manner via the lid, as a result of which, when the lid is opened, the interior of the container is released directly within the operating range of the user. Automatic opening is prevented by the fact that the at least one latching lug in the closed state creates a non-positive and / or positive connection between the cover and the base body.

It is not necessary for the change of the at least one locking lug between the locking position or the opening position that the at least one locking lug is arranged in the at least one locking lug recess. The change between the locking position or the opening position takes place equally in the open state of the lid, with the container naturally not being closed when the lid is open despite the locked state.

An advantageous further development is characterized in that the locking system is designed to be resilient in such a way that after the at least one actuating element has been actuated to open the container when the actuating element is released, the at least one latching lug is automatically returned from the opening position to the locking position. In this way, due to the resiliently designed locking system, the at least one locking lug is automatically pivoted back, which is a safety feature. The at least one latching lug is always in the locking position in the starting position and can only be moved into the opening position when the actuating element is actively actuated. This means that at least one locking lug is arranged so as to be supported against spring preload. As soon as the force does not act on the actuating element, the locking lug automatically moves back into the locking position under the influence of the spring preload.

A preferred embodiment is characterized in that the locking system on the cover comprises at least one transmission element which is operatively connected to the at least one actuating element and the at least one latching lug and which enables force to be transmitted between the at least one actuating element and the at least one latching lug. In this way, the locking system can be designed in different constellations and forces acting on the at least one latching lug from the actuating element can be arranged locally separated. The transmission element also supports the spring action of the locking system and contributes to a stable design. The at least one latching lug is preferably formed from an extension of the transmission element, that is, in the case of a flat transmission element, the at least one latching lug lies in the same plane as the transmission element. The transmission element is particularly preferably articulated to the at least one actuating element.

In a further advantageous embodiment of the invention, the locking system further comprises at least one support element articulated on a cover surface of the cover, the at least one transmission element being articulated between the at least one actuating element and the at least one support element. The support element separates the at least one latching lug from the cover surface, as a result of which the at least one latching lug is supported on the cover surface and is thus designed to be movable. In this way, a safe transfer between the locking position and the opening position is guaranteed.

The at least one actuation element and the support element are arranged in the locking position at least substantially orthogonally to the cover surface. “At least substantially orthogonal” in the context of the invention means either orthogonal to the cover surface or almost orthogonal to the cover surface, i.e. H. with a maximum deviation of ± 10 °. The actuating element and the support element are also preferably designed to be slightly inclined in the opening position in the direction of the rear wall.

In a further advantageous embodiment of the invention, the closure system is designed in such a way that the service life corresponds at least to the number of portions provided in the container, for example washing or cleaning tablets. Particularly preferably, however, the closure system allows even more opening and closing operations than corresponds to the number of portions. Such containers usually contain five to 20 portions, whereby preferably at least five to 20 operations of the closure system can be carried out from the open state to the closed state. The locking system is designed to be child-proof over its entire service life, which means that potentially harmful substances can be stored reliably and protected from unwanted access by children.

Another useful embodiment of the invention is characterized in that the cover surface, the at least one support element, the at least one transmission element and the at least one actuating element enclose a trapezoidal cross-sectional area in the folded state. At least two of the inner angles of the trapezoidal cross-sectional area are particularly preferred, at least in the locking position of the at least one locking lug, in particular the angles adjoining the cover, smaller than 100 °, in particular smaller than 90 °, and particularly preferably they are in the range between 89 ° and 80 °. Trapezoidal area in the sense of the invention is to be understood as the enclosed area, trapezoidal not being understood in the narrow geometric sense, in particular two lines need not be exactly parallel, but can also be present with deviations of +/- 5 °. The choice of angle, however, ensures that the locking system has a reliable spring effect. Paper-based raw materials, especially cardboard, cardboard or corrugated cardboard, have special properties when subjected to bending. Bending stresses of this kind occur primarily in the production of packaging or paper-based containers in which geometric shapes are generated from blanks by means of folds. When folding, paper-based raw materials, in particular cardboard or corrugated cardboard, have at least partially elastic properties up to a range of approx. 90 °. Paper-based containers are based on natural raw materials, which is why there can be a relatively high variance. This means that the cardboard or corrugated cardboard pivots at least partially back into the starting position during a pivoting movement of up to approx. 90 ° and is thus at least partially dimensionally stable. This procedure makes use of the arrangement of the cover surface, at least one support element, at least one transmission element and at least one actuating element, in that they experience a slight change in orientation when the position of the at least one latching lug changes from the locking position to the opening position. However, since the elements are preferably arranged at an angle of <90 °, the elements automatically pivot back into the starting position when the actuating element is released. In this way, the at least one latching lug automatically pivots from the open position into the locking position.

A preferred development of the invention is characterized in that the at least one actuating element comprises a force absorption area which acts on the at least one transmission element for force transmission in order to move the at least one latching lug between the locking position and the opening position. In this way, a defined area of the actuating element is specified, in which the actuating element can reliably function. In a preferred embodiment, the force absorption area is formed in the center of the actuating element. Especially The force absorption area can preferably be designed as an independent element which acts on the actuating element.

In a further preferred development of the invention, the cover surface has at least one engagement opening on the outside through which the at least one actuation element formed in the cover, in particular the force-absorbing area of the at least one actuation element, can be actuated. The actuating element or the force-absorbing region of the actuating element can be conveniently engaged via the cover surface through the engagement opening. The dimensions of the at least one engagement opening preferably correspond to at least the circumference of the thumb of an average adult.

The container or the closure system is preferably provided with a seal, a band or the like, which ensures that only the intended products are filled with the desired quality criteria. The seal is preferably arranged in the area of the engagement opening, it being formed from an area of the lid, in particular by perforations of a section of the lid surface.

An expedient embodiment of the invention is characterized in that the locking system comprises at least one limiting element which acts on the at least one actuating element and / or on the at least one transmission element and which limits the mobility of the at least one latching lug in such a way that the at least one latching lug in the locked state at least is essentially not movable beyond the locking state against the direction of the opening state. The delimitation element ensures that the at least one transmission element, the at least one actuation element and the support element cannot be displaced beyond the locking position against the movement of the at least one latching lug in the direction of the opening position. This ensures that the elastic effect of the locking system is maintained over the entire life cycle of the paper-based container.

Another useful embodiment of the invention is characterized in that the locking system has two to eight locking lugs, in particular three to five locking lugs, particularly preferably four locking lugs, and two to eight locking lug recesses, in particular three to five, each corresponding to the locking lugs each having latching lug recesses corresponding to the latching lugs, particularly preferably four latching lug recesses corresponding to the latching lugs. The corresponding number of latching lugs or the corresponding latching lug recesses is particularly dependent on the size or the desired locking effect of the cover with respect to the base body. The greater the locking effect in relation to the cover against forcible opening, that is to say against undesired opening without actuating the actuating element, the more latching lugs should be used. An increased locking effect can preferably also be achieved by larger latching lugs or a deeper engagement of the latching lugs in the latching lug recesses.

Another expedient embodiment of the invention is characterized in that the container has two closure systems, the two closure systems being independent of one another. The locking systems formed can be actuated by means of separate actuating elements, each with separately movable latching lugs. A transfer of the container from the closed state to the open state is therefore only possible with a simultaneous transfer of the at least one latching lug from the locking position to the opening position. Containers with two locking systems are particularly useful when there are increased child safety requirements. Since both locking systems can only be operated separately, further increased coordination skills are required in order to transfer the cover from the locked state to the open state. Containers with two independent or separate closure systems thus each have an independent actuating element, the actuating elements being arranged in the lid and each being actuatable by means of an engagement opening formed on the outside of the lid, the actuating elements being in operative connection with at least one independently mounted latching lug , the at least one latching lug in each case being designed and set up to be in engagement with corresponding latching lug recesses in order to lock the cover against automatic opening. For a further increased child safety, the engagement openings on the lid are spaced apart from one another by a distance which corresponds to the average span between thumb and forefinger of an adult's hand. In this way, it is not possible for a child to unlock both actuating elements with one hand and to open the cover with the free hand at the same time.

An advantageous development is characterized in that the front wall is at least partially formed from a double wall having a cavity, the double wall being formed from an outer front wall and an inner front wall section from a one-piece front wall section hinged to the floor, the inner front wall section having the at least one locking lug recess . The formation of the front wall as a double wall supports the strength or rigidity of the container against pressure and torsional stress on the one hand, and on the other hand, the cavity formed in the double wall provides a space into which the at least one locking lug can extend when it is through the at least a latching recess has passed through in the inner front wall section. The double wall of the front wall can be designed depending on the desired size of the cavity or the desired properties of the container. It is particularly advantageous if the front wall is formed from an at least three-layer cardboard composite.

An expedient embodiment of the invention is characterized in that at least one of the at least two side walls is at least partially formed as a double wall, the double wall being formed from an outer side wall and a one-piece inner side wall section articulated to the front wall section, the inner side wall section being arranged on the side facing the cover is. Such a configuration is also known as the "Y- or V-shaped configuration" of the section. The design of the side wall as a double wall supports the strength and rigidity of the container against compressive and torsional loads. It is particularly advantageous if the side wall is formed from an at least three-layer cardboard composite.

A further expedient embodiment of the invention is characterized in that the inner side wall section is hinged to the outer side wall to form a cavity.

The object is also achieved by a blank, in particular a one-piece blank, for a paper-based container made of a foldable material such as cardboard or corrugated cardboard, the blank comprising: a bottom surface with at least two bottom tabs articulated thereon, a rear wall surface articulated on the bottom surface with two or a plurality of rear wall side panels hinged to the rear panel, one hinged to the rear panel Lid surface which has at least one lid surface opening tab which is movable on a tab fold line and partially cut out of the lid surface, a closure system lid surface element which is hinged to the lid surface and which comprises a support element hinged to the lid surface, a transmission element hinged to the support element and an actuating element hinged to the transmission element, at least one Latching lug is formed on the transmission element by a cutout from the support element, the outer front wall articulated to the bottom surface with at least one front wall side surface articulated to the outer front wall and the inner front wall section articulated to the outer front wall, the inner front wall section including the at least one, at least partially cut out, locking lug recess. With a blank configured in this way, there is a simple possibility of producing the paper-based container according to the invention from a one-piece body. Containers from such a blank can be effectively manufactured and have the specified dimensions and elements in order to produce the desired functionality. In principle, the blanks can be available in almost all common sizes in order to produce the corresponding containers from them. The choice of the blank leads to a dimensionally stable and torsion-resistant container which also has the closure system according to the invention and is therefore childproof.

“One-piece blank” in the context of the invention means that the blank and thus also the container to be formed therefrom are formed from a single, coherent, paper-based folding blank. Alternatively, in certain embodiments, the blank can be assembled in advance from several individual parts, preferably cohesively, in particular by means of adhesives.

The articulated areas or sections are each articulated by means of fold lines introduced at least in part in advance. Such fold lines can be designed as folds, creases or perforations and are in particular introduced into the blank by upstream or downstream process steps. Such fold lines can particularly preferably include incisions, which simplifies the folding or positioning of the surfaces to be linked.

In a preferred embodiment, at least two reinforcement cover side surfaces are hinged to the cover surface, the reinforcement cover side surfaces each comprising movable reinforcement cover side surface tabs corresponding to the cover surface opening tab on a respective tab fold line partially cut out of the reinforcement cover side surfaces. In this way, the stability of the container to be produced and the security of the lid against undesired, improper opening are increased.

According to a further preferred embodiment, a locking system reinforcement surface is articulated to the actuating element. The locking system reinforcement surface helps, on the one hand, to arrange the actuating element on the cover surface in such a way that it is stable and reliable for a large number of actuation processes; Closes the lid surface, which ensures a uniform alignment location during the folding process.

According to a further preferred embodiment of the invention, one or more front wall side reinforcement surfaces are hinged to the front wall side surface and / or to the inner front wall section with at least one corner section cutout at least partially between the front wall side reinforcement surface and the inner front wall section and an inner front wall reinforcement surface articulated to the inner front wall section. The front wall side reinforcement surface strengthens the front wall and / or the side wall against compressive and torsional loads by increasing the torsional rigidity. The corner part cutout ensures that the side walls located on the front wall lie exactly against it, in that the at least one corner part cutout leads to an excess-free arrangement of the walls to one another, which can only be placed in relation to one another in the specified cutout.

The object is also achieved by a method for producing a paper-based container from a blank, comprising the following process steps: (1) providing the blank, (2) a) folding the locking receptacle reinforcement surface linked to the inner front wall section onto the inner front wall section, b) Application of an adhesive at least in certain areas to the surface side of the front wall reinforcement surface and / or on the surface side of the folded locking receptacle reinforcement surface, c) simultaneous folding of the front wall reinforcement surface on the front wall side surface and the folded locking receptacle reinforcement surface on the outer front wall, d) erecting the front wall surface 90 which is essentially bonded to the front wall side surface , e) Erect the outer front wall by essentially 90 °, creating an adhesive connection with the bottom flaps linked to the bottom surface, in particular including a counter-surface, f) at least partially applying an adhesive to the reinforcement cover side surfaces and / or on the cover surface, g) folding the Reinforcing cover side surfaces hinged to the cover surface onto the cover surface, h) pressing in the cut-out cover surface opening tab in the direction of the top side s provided blank, i) folding the support element linked to the cover surface inward, the transmission element inward, the actuating element inward, the locking system reinforcement surface outward, an angle <90 ° being formed between the cover surface and the support element, an angle between the support element and the transmission element > 90 ° is formed, an angle <90 ° is formed between the transmission element and the actuation element and an angle <90 ° is formed between the actuation element and the cover surface, arranging the cover surface opening tab in the area of the transmission element and / or the actuation element, in particular in the fold line thereof, j) Applying an adhesive at least in certain areas to the accessible top of the closure system reinforcement surface and gluing it to the cover surface or the reinforcement cover side surface tabs glued to it Elements that have already been folded and glued together by essentially 90 °, in particular with the inclusion of a counter-surface, (3) at least partially applying an adhesive to the accessible upper side of the one or more rear wall side surfaces, (4) folding the rear wall surface linked to the base surface with the already folded and glued elements by essentially 90 °, (5) folding the rear wall side surfaces articulated with adhesive applied to the rear wall surface and gluing them to the front wall side surfaces.

To avoid repetitions, in connection with the method according to the invention, reference is made to those already in connection with the Paper-based container according to the invention and the advantages described in detail for the blank according to the invention are referred to. These also apply in an analogous manner to the method according to the invention specified below.

Fig. 1

eine perspektivische Ansicht eines papierbasierenden Behälters mit einem teilweise geöffneten Deckel,

Fig. 2

eine perspektivische Ansicht des papierbasierenden Behälters gemäß Fig. 1 mit einem geschlossenen Deckel,

Fig. 3

eine seitliche Querschnittsansicht des papierbasierenden Behälters gemäß Fig. 1 mit einem geschlossenen Deckel,

Fig. 4

eine seitliche Querschnittsansicht des papierbasierenden Behälters gemäß Fig. 1 mit einem geschlossenen Deckel, in dem sich eine Rastnase in einem Öffnungsposition befindet,

Fig. 5

eine seitliche Querschnittsansicht des papierbasierenden Behälters gemäß Fig. 1 mit einem geöffneten Deckel, in dem sich die Rastnase in einer Verriegelungsposition befindet,

Fig. 6

ein erfindungsgemäßer Zuschnitt für einen papierbasierenden Behälter in einer ersten Ausführungsform

und

Fig. 7

ein erfindungsgemäßer Zuschnitt für einen papierbasierenden Behälter in einer weiteren Ausführungsform mit zwei getrennten Verschlusssystemen.

Further useful and / or advantageous features and developments of the device and the method emerge from the subclaims and the description. Particularly preferred embodiments of the device and the method are explained in more detail with reference to the accompanying drawings. In the drawing shows:

Fig. 1

a perspective view of a paper-based container with a partially opened lid,

Fig. 2

FIG. 3 is a perspective view of the paper-based container of FIG Fig. 1 with a closed lid,

Fig. 3

FIG. 8 is a side cross-sectional view of the paper-based container of FIG Fig. 1 with a closed lid,

Fig. 4

FIG. 8 is a side cross-sectional view of the paper-based container of FIG Fig. 1 with a closed lid in which there is a latch in an open position,

Fig. 5

FIG. 8 is a side cross-sectional view of the paper-based container of FIG Fig. 1 with an open cover in which the locking lug is in a locking position,

Fig. 6

a blank according to the invention for a paper-based container in a first embodiment

and

Fig. 7

a blank according to the invention for a paper-based container in a further embodiment with two separate closure systems.

The paper-based container according to the invention, the blank according to the invention for the paper-based container and the method according to the invention for producing a paper-based container are described with the aid of the aforementioned figures. To avoid repetition, the statements made on the container also apply to the blank according to the invention and to the method according to the invention, so that in the following only statements are made on selected aspects of the blank according to the invention and the method according to the invention, apart from the container according to the invention.

The illustrated paper-based container 10 is, in particular, a child-proof container, comprising a base body 11 with a front wall 12, a rear wall 13, at least two side walls 14a, 14b and a base 15, which enclose a container interior 16, a lid 17 hinged to the rear wall 13 , which closes the container 10 in a closed state and releases the container interior 16 in an open state, the container 10 having at least one paper-based closure system 18, comprising at least one locking lug 19, at least one locking lug recess 20 corresponding to the at least one locking lug and at least one with the at least one locking lug 19 in operative connection actuating element 21, which is designed to bring about the change of the at least one locking lug 19 between a locking position and an open position, the at least one locking lug 19 on and the at least one actuator Element 21 are arranged in the cover 17 and the at least one latching lug recess 20 is arranged in the front wall 12, in particular in the inside of the front wall, with the at least one latching lug 19 in the locking position engaging with the at least one latching lug recess 20 in the closed state that the cover 17 is locked on the base body 11 against automatic opening.

The features and developments described below represent preferred embodiments considered alone or in combination with one another. It is expressly pointed out that features that are summarized in the claims and / or the description and / or the drawing or are described in a common embodiment , can also functionally independently develop the paper-based container described above.

In Fig. 1 the paper-based container is shown in a perspective view with a partially opened lid. The embodiment of the container of Fig. 1 shows four locking lugs 19 with four each - in the Fig. 1 Not shown - corresponding locking lug recesses 20. The locking system 18, in particular the locking lugs 19 are located in FIG Fig. 1 in the locked position.

In the form shown, the paper-based container 10 is designed to set up a reversible transfer of the lid 17 from the closed state to the open state, in that the at least one latching lug 19 is transferred from the locking position to the opening position by means of the at least one actuating element 21, which in releasing the at least one locking lug 19 from the at least one locking lug recess 20 assigned to them. If the lid 17 is lifted at the same time, the lid 17 can be opened, whereby it reaches the open state and the container interior 16 is released.

The closure system 18 of the paper-based container 10 is preferably designed to be resilient such that after the at least one actuating element 21 is actuated to open the container 10 and when the actuating element 21 is released, the at least one latching lug 19 is automatically returned from the opening position to the locking position. In the Fig. 3 and Fig. 4 the process of automatic return is shown. In Fig. 3 the at least one locking lug 19 is in the locking position, while in Fig. 4 the at least one locking lug 19 is in the open position. In order to hold the latching lugs 19 in the open position, it is therefore necessary that the actuating element 21 is kept actuated continuously. In Fig. 4 the intended actuation by the respective user of the paper-based container 10 is not shown. In Fig. 4 the actuating means 21 is thus shown in the actuated state, and the latching lugs 19 are located outside the latching lug recesses 20. Due to the resilient property of the locking system 18, the latching lugs 19 are automatically transferred again into the locking position, as shown in, for example Fig. 3 is shown.

More preferably, the locking system 18 on the cover 17 comprises at least one with the at least one actuating element 21 and the at least one latching lug 19 comprises an operatively connected transmission element 22 which enables a force transmission between the at least one actuating element 21 and the at least one latching lug 19. In the Fig. 4 and Fig. 5 the locking lugs 19 are shown as an extension of the transmission element 22. The transmission element 22 is also articulated directly to the actuation element 21, whereby the operative connection between the transmission element 22 and the actuation element 21 is provided, which enables a force transmission or a change in the movement of the latching lugs 19.

The closure system 18 can preferably further comprise at least one support element 24 articulated to a cover surface 23 of the cover 17, the at least one transmission element 22 being articulated between the at least one actuating element 21 and the at least one support element 24.

The cover surface 23, the at least one support element 24, the at least one transmission element 22 and the at least one actuating element 21 preferably enclose a trapezoidal cross-sectional area in the folded state, with at least two of the inner angles of the trapezoidal cross-sectional area in the locking position of the at least one latching lug 19, in particular the angles adjacent to the cover 17 are smaller than 100 °, in particular smaller than 90 °, and particularly preferably in the range between 89 ° and 80 °. In the Fig. 3 the locking system is shown with the at least one latching lug in the locking position, the angles of the support element 24 adjoining the cover and of the actuating element 21 being less than 90 °. Furthermore, the angle between transmission element 22 and actuating element 21 is less than 90 °. In the Fig. 3 the trapezoidal cross-sectional area is designed as a cavity offset from the cover 17 into the container interior 16.

The at least one actuating element 21 preferably comprises a force absorption area 25 which acts to transmit force on the at least one transmission element in order to move the at least one latching lug 19 between the locking position and the opening position. The force absorption area 25 represents the area of the actuation element 21 which is accessible by the user and can thus be actuated via the cover surface 17. For this purpose, the cover surface 23 advantageously has at least one engagement opening 26 on the outside through which the at least one formed in the cover 17 Actuating element 21, in particular which can be actuated with its force-absorbing area 25 of the at least one actuating element 21.

In the FIGS. 1 to 5 the engagement opening 26 on the cover 17 is shown. Furthermore, the figures show in the area of the engagement opening 26 that the locking system 18 preferably comprises at least one limiting element 27 acting on the at least one actuating element 21 and / or on the at least one transmission element 22, which limits the mobility of the at least one latching lug 19 in such a way that the at least one latching lug 19 in the locked state is at least essentially not movable beyond the locked state against the direction of the open state. The delimitation element 27 is formed in particular by a tab which is pressed through from the outside of the cover 17 and which remains connected to the cover surface 23 on one side. The delimiting element is preferably, as in FIGS FIGS. 3 to 5 shown, formed in the prevailing fold line between actuating element 21 and transmission element 22.

The locking system 18 can preferably have two to eight latching lugs 19, in particular three to five latching lugs 19, particularly preferably - as in FIG Fig. 1 shown four locking lugs 19, as well as two to eight each with the locking lugs 19 corresponding locking lug recesses 20, in particular three to five each with the locking lugs 19 corresponding locking lug recesses 20, particularly preferably four with the locking lugs 19 - as from the blanks in the Fig. 6 and 7th shown - corresponding locking lug recesses 20 include.

The in Fig. 7 The container 10 shown further has two closure systems 18, the two closure systems 18 being independent of one another. Fig. 7 shows a second embodiment of a blank which is intended to form a container with two closure systems 18. The locking systems 18 formed can be actuated by means of separate actuating elements 21 each with separately movable latching lugs 19. A transfer of the container 10 from the closed state to the open state is therefore only possible with a simultaneous transfer of the at least one latching lug 19 from the locking position to the opening position.

Preferably, the front wall 12 is at least partially formed from a double wall 29 having a cavity 28, the double wall 29 being formed from an outer front wall 30 and an inner front wall section 31 from a one-piece front wall section 32 hinged to the bottom 15, the inner front wall section 31 being the at least one Has locking lug recess 20.

More preferably, at least one of the at least two side walls 14a, 14b is at least partially formed as a double wall 33, the double wall 33 being formed from an outer side wall 34 and an inner side wall section 35 from a one-piece inner side wall section 35 articulated to the front wall section 32, the inner side wall section 35 being an the side facing the cover 17 is arranged. Furthermore, the inner side wall section 35 is furthermore preferably hinged to the outer side wall 34, forming a cavity 36. In the Fig. 6 and 7th the blanks are shown with the respective sections and walls in a flat state.

The in Fig. 6 The blank 37 according to the invention shown is in particular a one-piece blank 37 for a paper-based container 10 made of a foldable material such as cardboard or corrugated cardboard, comprising a bottom surface 38 with at least two bottom flaps 39a, 39b articulated thereon, a rear wall surface 40 articulated to the bottom surface with two or more the rear wall surface 40 articulated rear wall side surfaces 41a, 41b, a cover surface 23 articulated to the rear wall surface 40, which has at least one cover surface opening tab 43 which is movable on a tab fold line 42 and partially cut out of the cover surface 23, a closure system cover surface element 44 which is articulated on the cover surface 23 and which is a cover surface element 44 23 articulated support element 24, a transmission element 22 articulated to the support element 24 and an actuating element 21 articulated to the transmission element 22, at least one latching lug 19 on the transmission element 22 by a cutout from the Support element 24 is formed, the outer front wall 30 articulated to the bottom surface 38 with at least one front wall side surface 45a, 45b articulated to the outer front wall 30 and the inner front wall section 31 articulated to the outer front wall 30, the inner front wall section 31 including the at least one, at least partially cut out, locking lug recess 20 . More preferably, at least two reinforcement cover side surfaces 52a, 52b are hinged to the cover surface 23 The reinforcement cover side surfaces 52a, 52b each comprise movable reinforcement cover side surface tabs 53a, 53b corresponding to the cover surface opening tab 43 at a respective tab fold line at least partially cut out of the reinforcement cover side surfaces 52a, 52b.

A locking system reinforcement surface 46 is preferably articulated to the actuating element 21.

More preferably, one or more front wall side reinforcement surfaces 47a, 47b are articulated to the front wall side surface 45a, 45b and / or to the inner front wall section 31, with at least one corner part cutout 48, which is at least partially located between the front wall side reinforcement surface 47a, 47b and the inner front wall section 31, and an inner front wall reinforced inner front wall surface 49 .

Fig. 7 shows a blank 50 which has two separate closure systems 18. Here, the closure system cover surface element 44 with the actuation element 21, transmission element 23 and the support element 24 is separated by means of a slot 51. In this way, independent elements of the locking system 18 are formed in each case, which can be operated separately. The container 10 with two independent or separate closure systems 18 thus each comprises an independent actuating element 21, the actuating elements 21 being arranged in the lid 17 and each being actuatable by means of an engagement opening 26 formed on the outside of the lid 17, the actuating elements 21 in Operationally connected to at least one independently mounted latching lug 19, the at least one latching lug 19 being designed and configured to engage with corresponding latching lug recesses 20 in order to lock the lid 17 against automatic opening, the engagement openings 26 on the lid 17 are spaced apart from one another by a distance which preferably corresponds to the average span between thumb and forefinger of an adult's hand.

The container 10 according to the invention with a closure system 18 is preferably produced from a blank 37 with the following steps. Providing the blank 37, folding the hinged to the inner front wall section 31 Inner front wall reinforcement surface 49 on the inner front wall section 31, at least partially applying an adhesive (not shown in the drawings) to the surface side of the front wall reinforcement surface 47a, 47b and / or on the surface side of the folded inner front wall reinforcement surface 49, simultaneous folding of the front wall side reinforcement surface 47a, 45b onto the front wall side reinforcement surface 45a, 47b and the folded inner front wall reinforcement surface 49 on the outer front wall 30, erecting the front wall side surface 45a, 45b bonded to the front wall side reinforcement surface 47a, 47b by essentially 90 °, erecting the outer front wall 30 by essentially 90 °, creating an adhesive connection with the floor tabs hinged to the bottom surface 38 39a, 39b, in particular with the inclusion of a counter-surface (not shown in the drawings), at least in certain areas application of an adhesive (not shown in the drawings) s on the reinforcement cover side surfaces 52a, 52b and / or on the cover surface 23, folding the reinforcement cover side surfaces 52a, 52b hinged to the cover surface 23 on the cover surface 23, pressing the cut-out cover surface opening tab 43 in the direction of the top of the provided blank 37, folding the on the cover surface 23 articulated support element 24 inward, the transmission element 22 inward, the actuating element 21 inward, the locking system reinforcement surface 46 outward, whereby an angle <90 ° is formed between the cover surface 23 and the support element 24, between the support element 24 and the transmission element 22 an angle> 90 °, an angle <90 ° is formed between the transmission element 22 and the actuating element 21 and an angle <90 ° is formed between the actuating element 21 and the cover surface 23, the cover surface opening tab 43 is arranged in the area of the transmission element 22 and / or the actuation element ent 21, in particular in its fold line 54, at least partially applying an adhesive - not shown in the drawings - to the accessible upper side of the closure system reinforcing surface 46 and gluing it to the cover surface 23 or the reinforcing cover side surface tabs 52a, 52b glued to it, folding the on the rear wall surface 40 hinged cover surface 23 with the already folded and glued elements by essentially 90 °, in particular with the inclusion of a counter surface - not shown in the drawings - at least partially applying an adhesive - not shown in the drawings - to the accessible upper side of the one or more rear wall side surfaces 41a, 41b, folds of the the bottom surface 38 hinged rear wall surface 40 with the already folded and glued elements by essentially 90 °, folding the rear wall side surfaces 41a, 41b hinged to the rear wall surface 40 with adhesive and gluing to the front wall side surfaces 45a, 45b.

The method for producing paper-based containers 10 from a blank 37 can be carried out in an analogous manner for paper-based containers 10 with more than one closure system 18.

Claims (18)

A paper-based container (10), in particular a child-resistant container, comprising
a base body (11) with a front wall (12), a rear wall (13), at least two side walls (14a, 14b) and a base (15) which enclose a container interior (16),
a lid (17) pivotably hinged to the rear wall (13), which closes the container (10) in a closed state and releases the interior of the container (16) in an open state,
wherein the container (10) has at least one paper-based closure system (18), characterized in that the closure system (18) comprises: at least one latching lug (19), at least one latching lug recess (20) corresponding to the at least one latching lug (19) and at least one actuating element (21) which is operatively connected to the at least one latching lug (19) and is designed to change the at least one To effect locking lug (19) between a locking position and an opening position, wherein the at least one locking lug (19) and the at least one actuating element (21) are arranged in the cover (17) and the at least one locking lug recess (20) is arranged in the front wall (12), in particular in the inside of the front wall, wherein in the closed state the at least one latching lug (19) in the locking position engages the at least one latching lug recess (20) in such a way that the cover (17) is locked on the base body (11) against automatic opening. Paper-based container (10) according to claim 1, characterized in that the closure system (18) is designed to be resilient in such a way that after the at least one actuating element (21) has been actuated to open the container (10) when the actuating element (21) is released, an automatic The at least one locking lug (19) is returned from the opening position to the locking position. Paper-based container (10) according to Claim 1 or 2, characterized in that the closure system (18) on the lid (17) has at least one transmission element (22) which is operatively connected to the at least one actuating element (21) and the at least one latching lug (19) ) which enables a force transmission between the at least one actuating element (21) and the at least one latching lug (19). Paper-based container (10) according to claim 3, characterized in that the closure system (18) further comprises at least one support element (24) hinged to a cover surface (23) of the cover (17), the at least one transmission element (22) between the at least an actuating element (21) and the at least one support element (24) is articulated. Paper-based container (10) according to claim 4, characterized in that the lid surface (23), the at least one supporting element (24), the at least one transmission element (22) and the at least one actuating element (21) enclose a trapezoidal cross-sectional area in the folded state, wherein at least two of the inner angles of the trapezoidal cross-sectional area, in particular the angles adjoining the cover (17), are less than 100 °, in particular less than 90 °, and particularly preferably in the area between, at least in the locking position of the at least one latching lug (19) 89 ° and 80 ° lie. Paper-based container (10) according to one or more of claims 1 to 5, characterized in that the at least one actuating element (21) comprises a force absorption area (25) which acts to transmit force on the at least one transmission element (22) around the at least one To move the locking lug (19) between the locking position and the opening position. Paper-based container (10) according to claim 6, characterized in that the lid surface (23) has at least one engagement opening (26) on the outside through which the at least one actuating element (21) formed in the lid (17), in particular the force absorption area ( 25) of the at least one actuating element (21) can be actuated. Paper-based container (10) according to one or more of claims 1 to 7, characterized in that the closure system (18) has at least one limiting element (27) acting on the at least one actuating element (21) and / or on the at least one transmission element (22) which limits the mobility of the at least one latching lug (19) in such a way that the at least one latching lug (19) in the locking state is at least essentially not movable beyond the locking state counter to the direction of the opening state. Paper-based container (10) according to one or more of claims 1 to 8, characterized in that the locking system (18) has two to eight latching lugs (19), in particular three to five latching lugs (19), particularly preferably four latching lugs (19), as well as two to eight locking lug recesses (20) each corresponding to the locking lugs (19), in particular three to five locking lug recesses (20) each corresponding with the locking lugs (19), particularly preferably four locking lug recesses (20) corresponding to the locking lugs (19). Paper-based container (10) according to one or more of Claims 1 to 9, characterized in that the container (10) has two closure systems (18), the two closure systems (18) being independent of one another. Paper-based container (10) according to one or more of claims 1 to 10, characterized in that the front wall (12) is at least partially formed from a double wall (29) having a cavity (28), the double wall (29) from an outer front wall (30) and an inner front wall section (31) is formed from a one-piece front wall section (32) articulated to the base (15), the inner front wall section (31) having the at least one locking lug recess (20). Paper-based container (10) according to claim 11, characterized in that at least one of the at least two side walls (14a, 14b) is at least partially formed as a double wall (33), the double wall (33) being made up of an outer side wall (34) and an inner side wall section ( 35) is formed from a one-piece inner side wall section (35) hinged to the front wall section (32), the inner side wall section (35) being arranged on the side facing the cover (17). Paper-based container (10) according to claim 12, characterized in that the inner side wall section (35) is hinged to the outer side wall (34) to form a cavity (36). Blank (37), in particular one-piece blank (37), for a paper-based container (10) made of a foldable material such as cardboard or corrugated cardboard according to one or more of Claims 1 to 13, characterized in that the blank (37) comprises the following: a bottom surface (38) with at least two bottom tabs (39a, 39b) hinged thereon, a rear wall surface (40) hinged to the bottom surface (38) with two or more rear wall side surfaces (41a, 41b) hinged to the rear wall surface (40), a cover surface (23) which is articulated to the rear wall surface (40) and has at least one cover surface opening tab (43) which is movable on a tab fold line (42) and is partially cut out of the cover surface (23), a closure system cover surface element (44) articulated on the cover surface (23), a support element (24) articulated on the cover surface (23), a transmission element (22) articulated on the support element (24) and an actuation element (22) articulated on the transmission element (22) 21) includes, wherein at least one locking lug (19) is formed on the transmission element (22) by a cutout from the support element (24), the outer front wall (30) articulated to the bottom surface (38) with at least one front wall side surface (45a, 45b) articulated to the outer front wall (30) and the inner front wall section (31) articulated to the outer front wall (30), the inner front wall section (31) having the at least comprises a latching lug recess (20) which is cut out at least in regions. Blank (37) according to claim 14, characterized in that at least two reinforcement cover side surfaces (52a, 52b) are hinged to the cover surface (23), the reinforcement cover side surfaces (52a, 52b) each partially corresponding to the cover surface opening tab (43) on a respective tab fold line movable reinforcement cover side panel flaps (53a, 53b) cut from the reinforcement lid side panels (52a, 52b). Blank (37) according to claim 16 or 17, characterized in that a locking system reinforcing surface (46) is articulated to the actuating element (21). Blank (37) according to one or more of claims 14 to 16, characterized in that one or more front wall side reinforcement surfaces (47a, 47b) are articulated with at least one at least one on the front wall side surface (45a, 45b) and / or on the inner front wall section (31) Corner section cutout (48) partially arranged between the front wall side reinforcement surface (47a, 47b) and the inner front wall section (31) and an inner front wall reinforcement surface (49) hinged to the inner front wall section (31). A method for producing a paper-based container (10) from a blank (37) according to one or more of claims 14 to 17, comprising the following method steps: (1) Provision of the blank (37), (2) a) folding the inner front wall reinforcement surface (49) linked to the inner front wall section (31) onto the inner front wall section (31), b) at least regionally applying an adhesive to the surface side of the front wall reinforcement surface (47a, 47b) and / or on the surface side of the folded inner front wall reinforcement surface (49), c) simultaneous folding of the front wall side reinforcement surface (47a, 47b) on the front wall side surface (45a, 45b) and the folded inner front wall reinforcement surface (49) on the outer front wall (30), d) erecting the front wall side surface (45a, 45b) glued to the front wall side reinforcement surface (47a, 47b) by essentially 90 °, e) Erecting the outer front wall (30) by essentially 90 °, creating an adhesive connection with the bottom tabs (39a, 39b) hinged to the bottom surface (38), in particular including a counter-surface, f) at least regionally applying an adhesive to the reinforcement cover side surfaces (52a, 52b) and / or to the cover surface (23), g) folding the reinforcement cover side surfaces (52a, 52b) linked to the cover surface (23) onto the cover surface (23), h) pressing in the cut-out lid surface opening tab (43) in the direction of the upper side of the blank (43) provided, i) folding the support element (24) hinged to the cover surface (23) inwards, the transmission element (22) inwards, the actuating element (21) inwards, the closure system reinforcement surface (46) outwards, with between the cover surface (23) and the support element (24) an angle <90 ° is formed, an angle> 90 ° is formed between the support element (24) and the transmission element (22), an angle <90 ° is formed between the transmission element (22) and the actuating element (21) and between the actuating element ( 21) and cover surface (23) an angle of <90 ° is formed, arranging the cover surface opening tab (43) in the area of the transmission element (22) and / or the actuating element (21), in particular in their fold line (54), j) at least in certain areas, application of an adhesive to the accessible upper side of the fastening system reinforcement surface (46) and gluing to the cover surface (23) or the reinforcement cover side surface tabs (52a, 52b) glued to it, k) folding the cover surface (23), which is hinged to the rear wall surface (40), with the already folded and glued elements by essentially 90 °, in particular with the inclusion of a counter-surface, (3) at least regionally applying an adhesive to the accessible upper side of the one or more rear wall side surfaces (41a, 41b), (4) folding the rear wall surface (40), which is hinged to the bottom surface (38) with the already folded and glued elements, by essentially 90 °, (5) Folding the adhesive-applied rear wall side surfaces (41a, 41b) hinged to the rear wall surface (40) and gluing them to the front wall side surfaces (45a, 45b).

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