EP3552983B1 - Container with locking ring for securing a lid for transport - Google Patents

Description

The invention relates to a container comprising: a container made of plastic in the form of a bucket with a bottom and a circumferential side wall, a lid for closing an opening formed on the container, the container having a circumferential engagement area with a clamping profile on its edge , which cooperates with a clamping profile on an inside of an edge of the lid to close the opening of the container, and a locking ring to secure the transport of the lid attached to the container in the form of a bucket, preferably made of plastic.

In the context of this application, a bucket is understood to mean a container with a circumferential cylindrical, usually slightly conically inclined side wall and an opening which typically extends over the entire top of the bucket. The basic shape of the bucket, which typically corresponds to the basic shape of the bottom, is arbitrary. The bucket can, for example, have an oval, round, rectangular or square basic shape. In the context of this application, a bucket is also understood to mean a can-shaped container.

In the area of the opening, the container has a circumferential edge on which an engagement area for interacting with the lid is formed. The engagement area has a clamping profile which cooperates with a clamping profile on the inside of the edge of the lid in order to ideally close the opening of the container in a sealing manner. The container may have an opening tab that extends into the engagement area to facilitate removal of the lid for a user.

When a container is being transported, the action of external forces can inadvertently release the engagement between the lid and the container. For example, when transporting several containers that are arranged on a pallet and press against each other laterally, the opening tab can be inadvertently pressed in. If, in this case, another container dips under the lid and is subsequently moved upwards, as can be the case, for example, when a truck is cornering, the lid of the container is unintentionally lifted when the opening tab is pressed in.

There are high demands on transport safety, for example, when transporting dangerous goods, for example in containers with UN approval for hazardous substances, for pharmaceutical products, for overseas transports, for very expensive filling goods, for parcel shipping or for medical waste containers. It is therefore advantageous, particularly in such applications, to provide measures that separately secure the lid for the transport of the container and that close the container safely for transport.

In the DD 38150 A1 a liquid-tight plastic bucket is described, the lid of which is held in a liquid-tight manner with its curved edge over a bead of the bucket reinforced by a metal ring and by a clamping ring.

Containers that contain liquids or dangerous goods must not only be permanently sealable, they must also be able to maintain their tightness even when external forces are applied. A container for the storage of dangerous goods with UN approval must For example, pass a drop test in which the closed container and its contents are dropped from a height of, for example, 1.80 m. If such a container with a clamping ring hits the floor, there is a risk that the clamping ring will deform and that this deformation will be transferred to the container and cover, so that the container will leak.

To avoid this problem, the DE 89 10 359 U1 a container closure of a metal container is described, in which the clamping ring has an improved dimensional stability against externally acting deformation forces. The two ends of the clamping ring are connected to one another by a turnbuckle.

If such a container hits the ground in the area of the turnbuckle, this can also lead to damage to the container, which leads to a leak. To avoid this, the DE 94 17 502 U1 proposed to design the ends of the clamping ring in the manner of a toothing with connection elements which can be interlocked with one another in a form-fitting manner. In the DE 90 12 138 A1 describes a tension ring without a tension lock whose first end section, which has an opening, covers a second end section in the closed state of the tension ring, which has an eyelet that can be inserted through the opening when the tension ring is closed.

In the DE 100 05 299 A1 describes a method for the fully automatic closing of bucket-shaped containers, in which the clamping ring / lid combinations are placed together on a container. Immediately before applying a closing force to push in the cover, the closed tension ring fastener is opened with the aid of a

Opening device applied with an opening force. After pressing in the lid, the clamping ring is closed and the lid is pressed in, i.e. pushed onto the container.

In the CH 624 356 A5 describes a metallic container, the lid of which is sheared onto the filling end of the container by means of a band-shaped plastic hoop. The plastic hoop is a so-called "open" hoop that can be injected like a linear band. A hoop tab lock is used to attach the hoop to the container.

In the DE 20 2009 016507 U1 a closed, elastic ring is used to close the metal receptacle of a container. The elastic ring is part of a lid which has a metal cover for closing the upper body opening of the metal receiving body. The elastic ring has a closing part which protrudes downward and cooperates in a clamping or latching manner with an outwardly extending projection on the upper opening of the metal receiving body in order to close the cover on the receiving body. From the FR 2 801 873 A1 a container with a two-part lid has become known, which has a stopper and means for fastening the stopper in the form of a ring. A free edge of a cylindrical body of the container is bent outwards and the profiled ring can be clipped onto the free edge of the cylindrical body.

In the U.S. 3,817,419 describes a locking mechanism carried by a peripheral skirt of a container closure. Of the The locking mechanism comprises a pair of spaced apart support straps of flexible material that are interconnected by a bridging element. A locking hook is disposed between the support straps and is carried by the bridging element. The locking hook has a locking lug which protrudes in the direction of the circumferential skirt, wherein in the locked state of the locking mechanism the locking lug is suitable for locking against a container locking surface and is held there by the flexible nature of the straps and / or an elastic seal.

The invention is based on the object of providing a container with a locking ring which overcomes the disadvantages of the prior art. In particular, the securing ring should guarantee a high level of transport security for the container and should be meaningfully integrated into modern logistics and filling processes.

This object is achieved by a container of the type mentioned at the outset, in which an annular side wall of the locking ring engages around an edge of the container and its locking area protruding inward over the side wall overlaps an edge of the lid, the side wall and / or the locking area of the locking ring in are closed, wherein on the side wall of the securing ring inwardly protruding over the side wall of the securing ring latching elements for fastening the securing ring to the edge of the container are formed, and wherein between the side of the side wall of the securing ring on which the inwardly protruding securing area is formed, and recesses are formed in the side wall of the locking ring for the locking elements.

A "self-contained" side wall or a self-contained securing area is understood to mean that the side wall or the securing area run continuously in the circumferential direction. This does not mean that no recesses can be provided on the side wall or on the securing area, but these do not have two free ends that can be connected to one another, as is the case with a metallic clamping ring - with or without a turnbuckle.

The side wall and the securing area of the securing ring are typically formed in one piece or in one piece. The side wall has a predetermined dimension on its inside which is adapted to the dimension of the edge of the container, so that the side wall of the securing ring encompasses the edge of the container and usually the edge of the lid in particular in a form-fitting manner. The side wall of the locking ring is typically flat against the edge of the container. In the case of a round container, the diameter of the inside of the locking ring corresponds approximately to the diameter of the outside of the edge of the container and of the lid, which is typically flush with the container at its outer edge. The securing area overlapping the cover can in particular rest on the upper side of the edge of the cover when the securing ring is in its securing position.

According to the invention, it is proposed to use a locking ring for the transport-proof closure of a container, which is typically pushed from the top of the container onto the edge of the container closed with the lid. The securing area of the securing ring protruding inwards over the side wall secures the Lid against unintentional lifting from the container. In contrast to a metallic clamping ring, the securing ring is therefore not attached to the container by applying a radial force with a reduction in its diameter and is subsequently fastened to the container by means of a turnbuckle or by means of a toothing.

The securing ring therefore does not require a turnbuckle and also has no free ends which could inadvertently come loose when the container secured with the securing ring hits the floor. As a rule, the locking ring can be attached to conventional containers that have a container and a lid, without constructive changes to these containers having to be made for this purpose. The locking ring, more precisely the side wall, can in particular also serve to cover an opening tab provided on the edge of the container so that it cannot be pressed in unintentionally, which can result in unintentional detachment of the lid from the container.

In one embodiment, the securing ring can be bounced onto the plastic container in the form of a bucket, in particular when the lid is attached to the container. The locking ring can be pushed onto the container closed with the lid. Alternatively, it is possible to bounce a preassembled unit, in which the lid is held in the locking ring, onto the container in the form of a bucket, as will be described in more detail below.

The securing ring can be bounced onto the container, that is to say it can be placed or pushed onto the container in a translatory manner, for which purpose a bouncing device is typically used in an industrial process. The lid, which is applied to the container and secured with the locking ring is typically also made of plastic. In order to be able to bounce the locking ring onto the container or onto the lid, the locking ring is typically made of plastic. However, it is also possible to bounce or snap a locking ring made of a metallic material or a combination of plastic and a metallic material onto a container made of plastic, since the plastic material of the container when bounced or pushed open of the locking ring is pressed inwards from above and is elastically deformed in the process. If the metallic retaining ring is produced in a roll-forming process, it is typically necessary to permanently connect the two free ends of a roll-formed sheet metal by a joining process, for example by welding, in order to form a self-contained, one-piece retaining ring. In the case of a securing ring produced in one piece by the injection molding process, such joining is typically not necessary, ie there are practically no joints in such a securing ring.

Latching elements for fastening the locking ring to the edge of the container are formed on the side wall. As a rule, the force in the radial direction that is exerted on the locking ring by the edge of the container is not great enough to fix the locking ring on the container in a manner that is safe for transport. Therefore, locking elements or - in an example not according to the invention - a (essentially) completely circumferential locking edge are used to prevent the locking ring pushed onto the container with lid from being unintentionally loosened by external forces, ie typically being pulled off upwards. If necessary, the securing ring can also be fixed on the container without the provision of locking elements. In this case, you may be attached to the container locking elements to fix the locking ring on the container.

The locking elements thus secure the locking ring against unintentional lifting off the container. For this purpose, several locking elements distributed over the circumference of the side wall can be provided on the locking ring, which interact with locking elements on the container, but this is not absolutely necessary: it is sufficient if locking elements are only attached to the locking ring, but not to the container .

The locking elements are typically attached to a side of the side wall of the locking ring facing away from the locking area. When the locking ring is pushed onto the container, the locking ring and / or the container is / are slightly elastically deformed so that the locking elements or the locking edge can be moved along the outside of the container until it reaches its locking position / en.

In the locking position, the locking elements can engage behind the edge of the container, more precisely an apron formed on the edge of the container, so that the locking ring cannot be lifted upwards. If a locking edge is not used according to the invention, the securing ring may not be easily detached from the container, ie usually not without the use of a tool. When using locking elements, it is possible to release and re-slide the locking ring onto the container or onto other containers multiple times, ie the locking ring can be used several times. But it is also possible with locking elements To make the clamping ring usable only once, as will be described in more detail below. A respective latching element generally only extends over a relatively small area in the circumferential direction of the locking ring. The latching elements can in particular be arranged uniformly in the circumferential direction, that is to say at equal intervals. Since the locking elements may have to be released individually by an operator (see below), it is beneficial if the number of locking elements is not too large. For example, a maximum of eight or a maximum of twelve locking elements can be attached to the locking ring.

The locking elements protrude inwardly over the side wall of the locking ring. The latching elements, in particular in the form of latching lugs, are preferably formed on a side of the side wall facing away from the protruding securing area in order to engage behind an apron formed on the edge of the container.

In this case, the edge of the container forms a double edge which has a skirt spaced from the side wall of the container. The skirt typically adjoins the engagement area for fastening the lid, which is formed on the edge of the container. To stiffen the apron, stiffening ribs are typically provided which extend from the outside of the side wall of the container to the inside of the apron. The locking ring, more precisely the locking lugs, can engage behind the apron on its underside in the locking position in order to prevent the locking ring from being lifted upwards, for example when a buoyancy force is exerted on this or on the lid in the container the transported product acts. Due to the locking of the locking elements under the apron, it is not necessary to make structural changes for locking the locking ring to be carried out on the container, ie the locking ring can be applied to a conventional container with a lid.

Recesses are formed in the side wall between the side of the side wall on which the inwardly protruding securing area is formed and the latching elements. The recesses are essentially limited to the circumferential area along the side wall, along which a respective latching lug or a latching element extends. The recesses, which are attached above the locking elements, which are typically attached to the lower edge of the locking ring, reduce the rigidity of the locking ring in the vicinity of the locking elements. In this way, the elastic deformability of the locking ring in the area of the locking elements is increased, so that when the locking ring is pushed onto the container, they can move outwards until the locking lugs have reached their locking position. In addition, an operator can press against the container through the recesses while the locking lugs are released from their locking position in order to exert a leverage effect and in this way lift the locking ring from the container.

In a further development, the recesses continue in the securing area protruding inward over the side wall and preferably protrude just as far inward as the latching elements. In this development, the locking ring has no undercut in terms of its vertical direction, which corresponds to the demolding direction in a locking ring made of plastic by injection molding, despite the inwardly protruding locking lugs and can be demolded without the provision of slide tools.

In a further embodiment, engagement areas for applying a force directed to the outside of the side wall to the locking elements are formed on the side wall in the area of the locking elements, the engagement areas preferably protruding beyond the side of the side wall facing away from the securing area. In order to release the locking elements from the locking position, it is advantageous if attack areas are formed on the side wall of the locking ring that allow an operator to apply an outward force to the locking elements, for example in the form of locking lugs, in order to remove them from the To release engagement with the container. It is fundamentally advantageous if the areas of attack on the side wall of the locking ring protrude downward beyond the side wall, since the side wall typically does not extend downward beyond the double edge or the skirt of the container, so that typically only one under the side wall extending attack area on the inside of the side wall an outward force can be exerted. In the event that the apron can be pressed inward in the area of the recesses, for example because stiffening ribs for stiffening the apron were dispensed with in the area of the locking elements of the locking ring, it is possibly also possible for an operator to loosen the locking elements and the locking ring can lift off without attack areas being formed on the side wall of the locking ring for this purpose.

In a further development, a respective engagement area and a respective latching element are attached to a pivotable tab formed on the side wall. In this case, the tab is attached to the side wall approximately at the level of the latching element or above it so that it can pivot. The engagement area, which is typically formed under the latching element, serves in this case as a lever area for pivoting the tab and thus the latching element to the outside, so that the latching element can be released from the latching position. Here, the latching element is elastically stretched outward beyond the edge of the container or the apron, so that the locking ring can be lifted upwards in the area of the latching element. The tabs can be connected to the side wall of the locking ring, for example via film hinges. The tabs can also serve as a tamper-evident feature, ie it can be seen whether a respective tab has been pivoted from a basic position running essentially parallel to the side wall in order to release the associated latching element from its latching position. For this purpose, predetermined breaking points can be formed between the side edges of the tab and the adjoining side wall of the locking ring. The predetermined breaking points can be formed by comparatively thin material points between the edges of a respective tab and the side wall of the locking ring. The predetermined breaking points can be broken open by folding up the flap from the basic position.

In a further development, the recesses are designed for the engagement of the engagement areas protruding beyond the side wall of a further (structurally identical) securing ring which is placed on the securing ring. In this case, the areas where the further (upper) securing ring engages in the recesses of the (lower) securing ring, whereby the stacking height of the securing rings stacked on top of one another can be reduced. In order to facilitate stacking, the cutouts can have an essentially V-shaped geometry and the side edges of the areas of attack can be aligned at an angle to the vertical axis of the side wall. In this way, the engagement of the engagement areas of the upper locking ring in the recesses of the lower locking ring is simplified. The width of the Recesses can in particular be adapted to the width of the attack areas, so that the recesses are used for laterally contacting the attack areas.

In an alternative example, the side wall ends on its side facing away from the securing area at a distance of less than 10 mm, preferably less than 5 mm, below the latching elements or the latching lugs. In contrast to the embodiment described above, in which engagement or lever areas are formed on the side wall in order to lift the locking ring from the container, in this example the distance between the underside of the side wall and the underside of the locking elements is reduced to a manufacturing-related ( For example, for the plastic to flow together), the necessary distance is reduced and thus the area of attack for an operator is also minimized, in order to prevent the operator from being able to detach the locking elements located in the locking position from the edge of the container. The distance required for confluence typically increases with the size of the container. In the present embodiment, the locking lugs are used to (ideally not releasable) locking the lid on the container. Such a lock is advantageous in the case of disposable or disposal containers, for example for medical waste or the like. In order to reduce or minimize the area of attack, the side wall can terminate almost flush with the rest of the side wall in the area of the locking lugs, ie the attack areas protruding downward are dispensed with. In this embodiment, the recesses provided above the locking elements can optionally be dispensed with, provided that these are not required in order to ensure the required elasticity of the securing ring when it is pushed onto the container. The locking elements can in this case in particular free ends in the manner of Have barbs to lock the locking ring to the container.

In the side wall, recesses for receiving mounting points of a support bracket of the container can be formed. The two ends of the support bracket typically extend outward at the mounting points from the edge of the container or the apron, which is why the recesses in the locking ring are required. The recesses are typically open to the lower side of the side wall facing away from the securing area, so that the securing ring can be placed on the container from above. The two mounting points can be diametrically opposed when the support bracket is attached centrally to the container. Depending on the connection of the carrying handle to the container, the two mounting points do not necessarily have to be diametrically opposed. The orientation of the locking ring when it is placed on the container is specified by the recesses for the support bracket. The specification of an orientation of the locking ring in relation to the container can be advantageous, as will be described in more detail below.

The securing ring can have at least one predetermined breaking element, in particular a tear tab, for irreversibly severing the self-contained side wall and / or the self-contained locking area. By tearing off the tab, the side wall of the securing ring or the securing area is separated, ie the side wall or the securing area has two free ends after the opening. As a result of the separation, the retaining ring loses its circumferential tension and can easily be removed or lifted off the container. The pull tab becomes the opening of the locking ring used, it cannot be reused, ie the locking ring is recycled after it has been opened once. For tearing open the pull tab, it is connected to the side wall or the securing area typically over the entire height of the side wall or the securing area via predetermined breaking points or via a perforation.

The inwardly protruding securing area can have a (essentially) U-shaped partial area for reaching around the edge of the cover. The lid typically also has a substantially V-shaped or U-shaped partial area on its outer edge, which is placed with its inside on the edge of the container and which protrudes upwards over the flat side of the lid (lid surface). On the inside of the V-shaped or U-shaped partial area, the cover can have a clamping profile which interacts with a clamping profile formed on the engagement area of the edge of the container. The U-shaped sub-area of the securing area of the securing ring has two wall sections which are connected to one another by the upper side of the U-shaped sub-area and between which the sides of the edge of the cover are preferably received in a form-fitting manner. It is essential that the U-shaped partial area has an inner leg which extends along the inside of the edge of the cover in order to encompass the edge of the cover. In the event that the lid is held in the locking ring and is placed on the container together with the locking ring (see below), it has proven to be beneficial if the lid is encompassed by the U-shaped sub-area, since in this case the The edge of the lid cannot move inward when it is pushed on and its clamping profile safely interacts with the clamping profile on the engagement area of the container.

At least one holding element for holding a cover between the holding element and an inside of the securing area protruding over the side wall can be formed on the side wall. The retaining element can be designed, for example, in the form of a retaining lug that protrudes beyond the inside of the side wall and the dimensions of which are matched to the diameter of the lid so that the free end of its edge rests on the top of the retaining element or the retaining lug . The retaining lug is typically spaced so far from the protruding securing area that the edge of the cover protruding upward beyond the cover surface extends into the U-shaped partial area of the securing area. In this way, a pre-assembled combination of locking ring and lid can be automatically or manually placed on the edge of the container and by applying a force to the top of the U-shaped sub-area of the locking area, the locking ring can be placed on the edge of the container and then pushed on . In this case, the lid is positively encompassed by the locking ring and, in this way, is simultaneously applied to the edge of the container when the locking ring is pushed on. Due to the elastic expansion of the locking ring in the horizontal direction, the cover can also expand elastically in the area of the clamping profile and thus snap into the clamping profile, for example a groove, provided in the engagement area on the edge of the container. In this case, it is typically necessary for the holding element to perform an evasive movement for pushing the cover into the locking ring and for placing the locking ring on the container. In order to enable the evasive movement, the holding element itself can be designed to be elastically deformable.

The holding element can be movable from a holding position in which the holding element protrudes inward over the side wall into a release position in which the holding element typically does not protrude inward over the side wall. As described above, when the locking ring is pushed onto the container or when the lid is pushed into the locking ring, the retaining element can move outward in the horizontal direction into the release position, so that the locking ring can be placed on the container without the retaining element making it difficult to slide on the locking ring. Without the action of an external force on the holding element, the holding element is in the holding position. The holding element therefore moves back from the release position into the holding position as soon as no external force acts on the holding element.

The holding element can be formed on an elastically deformable partial area of the side wall, preferably on an elastically resilient tongue area attached in a recess. The elastically deformable area of the side wall deforms elastically when the securing ring is pushed onto the container, so that the holding element can move outward. For this purpose, the side wall can, for example, have a reduced wall thickness in the region of the holding element. The retaining element, for example in the form of a retaining lug, can, however, also be formed at a free end of the resilient tongue area which, starting from the retaining element, extends, for example, downwards, ie in the direction of the side of the side wall facing away from the securing area. A run-in bevel can be provided on the underside of the holding element in order to facilitate the movement of the holding element into the To simplify the release position when pushing the lid into the locking ring or when placing the locking ring on the container.

The recess in which the tongue area is formed can also serve to enable an operator to release the cover held in the locking ring by acting on the tongue area manually or with a tool. The recesses on which the tongue area is formed can be designed like the recesses that were described above in connection with the locking elements or the locking lugs, ie the recesses can extend into the securing area protruding inward over the side wall and preferably at least in the same way protrude far inwards like the retaining elements. In this way, when the securing ring is manufactured in an injection molding process, it can also be removed from the mold in the area of the holding elements without the need for slides or the like for this purpose.

The inwardly protruding securing area can have a support surface, preferably formed on a step or a trough, for the support of a further (generally identically constructed) securing ring. With the help of the support surface, several retaining rings can be stacked on top of each other. Typically, the lower end of its side wall of the further (upper) locking ring rests on the bearing surface of the (lower) locking ring. If downwardly protruding attack areas are formed on the side wall of the upper securing ring, these can engage in correspondingly shaped recesses in the lower securing ring, as was described above. The stacking of several locking rings with pre-assembled covers on top of one another is possible if between the holding element and the underside of the Side edge of the securing ring a sufficient free space is formed to accommodate the U-shaped partial area of the securing area that typically protrudes upward beyond the side wall. Typically, the side wall of the locking ring in its vertical direction has a sufficient extension to form such a free space, which is adapted to the extension of the apron in the vertical direction. For example, the side wall can have an extension in the vertical direction of more than approximately 30 mm and of not more than approximately 50 mm.

In the area of the step, stiffening elements, in particular stiffening ribs, can be formed, with a free space preferably being formed between at least two adjacent stiffening elements for lateral fixation of an area of engagement of a further locking ring protruding downward beyond the side wall. The stiffening elements typically do not extend into the area of the bearing surface, which can be formed, for example, on the outer edge of the securing area which adjoins the top of the side wall of the securing ring. The stiffening elements can, however, serve to form a free space for the lateral fixation of the latching lugs, which protrude inwards beyond the side wall of the further securing ring, as will be explained below.

As described above, the attack areas protruding downward over the side wall usually engage in the recesses on the side wall and an upper retaining ring rests with the underside of the side wall on the support surface. If there are no recesses on the securing ring or if a stacking area protruding upwards is formed on the securing ring (see below), it can be advantageous to place two or more securing rings on top of one another stack in that the attack areas of an upper locking ring each rest with their underside on a support surface of a lower locking ring. In this case, it is advantageous if a free space is formed between two adjacent stiffening elements in order to achieve a lateral fixation of the position of a respective area of attack of the upper securing ring. As in the case of the recesses described above, the stiffening elements and thus the free space can also have a geometry which simplifies the fixing of the position of a respective attack area. In particular, the distance between the two adjacent stiffening elements can correspond to the width of a respective inwardly protruding latching element which is formed on the engagement area.

Typically, multiple containers are stacked on top of each other by placing the bottom of an upper container on top of the lid of a lower container. Since the bottom of a slightly conical container has a slightly smaller cross-section on its underside than on the top of the container, stiffening elements protruding over the flat top can be formed on the top of the lid in order to prevent a container stacked on the lid from slipping sideways . The stiffening elements are typically formed at a comparatively small distance from the protruding edge of the lid, which is placed on the edge of the container. If the lid secured with the securing ring deforms due to an internal pressure in the container, it arches upwards in a radially inner area that is not secured by the securing ring. In this case, the stiffening elements are pressed radially outwards in the direction of the U-shaped sub-area of the locking ring and in doing so press the cover overlapping legs of the U-shaped portion against the inside of the edge of the lid. This creates a self-locking effect that also fixes the cover to the locking ring.

The locking ring can have a stacking area which protrudes from the locking area on a side facing away from the side wall of the locking ring (i.e. upwards) and which has a supporting surface for supporting a further container, more precisely a base of a further container. The stacking area is used to create a free space for upwardly protruding components attached to the top of the cover, for example in the form of cover adapters. A pouring opening can be formed on such a lid adapter, for example, which is similar to the pouring opening of a canister and can be closed with a screw cap. A foil bag can also be connected to the lid adapter, which can hold liquids or, for example, free-flowing solids. Foil bags and filling medium are located inside the container. Such an arrangement may be suitable for substituting certain hollow body applications.

The stacking area protrudes so far over the securing area that the supporting surface for supporting the further container is located above the component (or components) formed on the top of the lid or is flush with the top of this component (or components). In this way, despite the presence of components protruding over the top of the lid, several containers or packs, each secured with a locking ring, can be stacked on top of one another, or the locking ring enables such packs to be stacked.

Instead of the above-described stacking area on the securing ring, it is basically also possible to create the required free space for components protruding beyond the lid, for example for lid adapters, by forming a standing edge on the bottom of the container. The standing edge is a downward protruding edge over the bottom of the container, the height of which is selected so that the desired free space is created when the container is placed with the standing edge on the lid of another container arranged below. The standing edge can have a cylindrical geometry, i.e., in contrast to the side wall of the container, it is usually not conical. However, a cylindrical design of the standing edge is not advantageous, for example, for attaching a so-called in-mold label (IML), i.e. a printed film that is applied to the outside of the container. To solve this problem, the IML can be left out in the area of the standing edge.

As an alternative to providing a standing edge, it is basically also possible to create a free space for components protruding beyond the lid by making an indentation in the bottom of the container that is limited to the area of the bottom where the component protrudes beyond the lid . However, such containers or buckets are unsuitable for filling goods with mixing or stirring requirements, since the agitators only insufficiently reach the wetted bottom surface of the container in this case and consequently with poor mixing results. When stacking the bundles, a precisely fitting alignment is also required when stacking.

The stacking area of the locking ring can be formed in one piece with the rest of the locking ring. Typically the Stacking area to the U-shaped section of the security area. The stacking area or a side wall of the stacking area can, for example, extend upwards from the inner leg of the U-shaped sub-area. The stacking area can, for example, be designed in the shape of a ring and have a horizontally oriented support surface for supporting the container. The stacking area can, in particular, have a substantially U-shaped cross-section, with an inner leg of the stacking area typically extending so far down that the free end of this leg, possibly with a horizontally extending projection formed on it, up to the top of the lid is sufficient, which is placed on the container and secured by the locking ring. In this way the lid can be used to support the stacking area. The supporting surface of the stacking area can adjoin a collar area of the stacking area on the inside, which extends further upwards than the supporting surface in order to laterally fix a further container which is placed on the supporting surface during stacking.

The stacking area can be designed as a stacking ring which is detachably attached to the securing area, preferably to the U-shaped protruding sub-area of the securing area. In this case, the securing ring is typically designed in two parts, ie it consists of the stacking ring as one component and the securing area with the side wall as the second component. This is advantageous because the stacking ring is usually only required for containers or lids in which a component, for example in the form of a lid adapter, protrudes over the lid and thus prevents several containers from being stacked on top of one another, unless the stacking area or the stacking ring is used. The use of the stacking ring can, however, be dispensed with if conventional lids or containers are to be stacked without components protruding beyond the lid and hindering stacking.

There are various possibilities for the detachable connection of the stacking ring to the securing area, which is usually carried out on the upper side of the securing area.

The securing area preferably has a channel for receiving a free end of a side wall of the stacking ring. The channel has a typically U-shaped cross-section which, however, in contrast to the U-shaped sub-area of the securing area, is not open at the bottom but at the top in order to accommodate the lower end of the side wall of the stacking ring. The channel can directly adjoin the inner leg of the U-shaped sub-area of the securing area. In this case, the inner leg of the U-shaped partial area of the securing area can form the outer leg of the U-shaped profile of the channel. The releasable connection of the securing ring with the aid of the channel enables easier force transmission in the vertical direction from the support surface or from the securing ring to the lid when the securing ring is placed on the container, especially if the lid is preassembled in the securing ring.

The stacking ring can have at least one engagement opening for lifting the stacking ring from the securing area of the securing ring. Preferably, several engagement openings are attached to the stacking ring, which are evenly distributed in the circumferential direction. The engagement openings make it easier to pull the stacking ring off the securing area of the Retaining ring. The stacking ring can be removed, for example, to make it easier to empty the container.

The stacking area can have a pouring trough for pouring contents out of the container. The protrusion of a pouring trough is particularly advantageous if the stacking area is formed in one piece with the rest of the securing ring. In this case, the container can be emptied via the pouring spout without the locking ring having to be removed from the container for this purpose. The pouring trough enables the filling goods to be emptied easily and precisely.

Several circlips that have a stacking area can - regardless of whether they are one-piece or multi-part - be stacked like circlips without a stacking area, i.e. an upper circlip rests with the underside of the side wall on the contact surface of a lower circlip. In the event that downwardly protruding attack or lever areas are formed on the side wall, these engage in recesses or in windows of the locking ring below.

Differences in stacking may arise if a cover is preassembled in the securing ring with the stacking area. In this case, the upper locking ring can be placed slightly twisted so that the underside of the engagement areas rests on the support surface or on the step or trough on the edge of the lower locking ring and does not engage in the recesses on the lower locking ring. Due to the lateral fixation of the attack areas through the free space between the stiffening elements, which are located on the circumferential edge or the step of the Retaining ring are formed, a rotational movement of the upper retaining ring relative to the lower retaining ring can be prevented. The distance between the top of the stacking area, more precisely a collar area formed there, and the securing area of the securing ring along the vertical axis of the securing ring is preferably selected in such a way that the preassembled cover with two securing rings stacked on top of one another from the top of the stacking area, more precisely the collar area , of the lower securing ring is supported, ie the back of the lid typically rests on the top of the stacking area, which is usually in a ring-shaped manner.

The securing ring can additionally comprise a cover region protruding downward over the inwardly protruding securing region which comprises at least one cover surface for at least partially covering the top of the lid, preferably in at least one, in particular trough-shaped, partial region. In this case, the cover can have a flat cover surface or at least one, for example trough-shaped, partial area protruding downward beyond the cover surface. Covering the (flat) top of the lid with the help of the cover surface can be useful to increase the stability of the lid. A flat object, e.g. in the form of an (information or advertising brochure, etc.) can also be placed in the space between the (flat) top of the lid and the cover surface.

If the cover has, for example, a trough-shaped partial area, this is typically completely, but possibly only partially, covered by the cover surface of the securing ring. The cover surface can be designed flat and extend at the level of the cover surface. The cover surface lies in this case at least partially on the top of the cover, typically outside of the downwardly protruding sub-area. In this way, with the help of the cover surface, an in particular completely closed gap can be formed between the top of the trough-shaped partial area and the bottom of the cover surface. Objects, for example tools for use by an operator of the container, can be accommodated or stored in the intermediate space. In contrast to the embodiments described above, in which the locking ring typically has a central opening and essentially overlaps the cover (with the exception of the stacking area) only in the area of the lid edge, in the present embodiment the cover area can use the otherwise existing opening in the locking ring close. In this case, the annular securing area is supplemented by the cover area adjoining the securing area or by the cover area to form a closed area which completely overlaps or covers the lid.

In a further development, it is possible for the cover area to be detachably connected, e.g. through predetermined breaking points, to the securing ring that adjoins the outside. Alternatively, the cover area could be formed from a peelable in-mold label or a peelable film. As a result, the cover area can be detached from the securing ring in order to access the aforementioned objects stored in the space without the securing ring losing its securing function.

The locking ring can have an indexing window for engaging an indexing element formed on the cover for the correct orientation of the Have cover relative to the locking ring. In the event that a component is provided on the lid which must be suitably aligned in the circumferential direction relative to the container, for example a lid adapter with a pouring opening, it is necessary to position the lid in the circumferential direction in the correct position relative to the locking ring. To achieve this, an indexing window (opening window) can be provided on the securing ring, into which an indexing element formed on the cover and typically protruding outward, for example in the form of an integrally formed centering lug, engages. To indicate the position in the circumferential direction, additional markings can be attached to the locking ring. The securing ring with the correctly aligned cover is correctly aligned when it is placed on the container via the recesses which serve to accommodate the mounting points of the carrier handle of the container. In this way, a component provided on the cover, for example the cover adapter described above, can be suitably aligned relative to the support bracket - typically centrally between the two mounting points - in order to empty the container via the pouring opening of the cover adapter.

The securing area, in particular the U-shaped partial area, can have a support surface on its upper side for resting on an upper side of a side wall of a container. This is advantageous if the locking ring, more precisely a container secured with it and closed with a lid, is placed upside down on the top of the side wall of an empty container. In this case, the locking ring typically has a stacking area which extends into the opening of the container. On the lid of the container, which is aligned upside down and secured with the locking ring, typically one, as a rule, several lid adapters are attached through their Spouts the contents of the upside down container can be emptied. In particular, filling material that is stored in two or more foil bags inside the container connected to a respective lid adapter can be emptied at the same time.

A plurality of knob-shaped projections (locking cams) can be formed on an outside of the side wall. The knob-shaped projections on the outside of the side wall typically protrude the furthest outward at the edge of the container, so that they come into engagement with knobs formed on the outside of a side wall of a securing ring of an adjacent container and form a positive connection with them and thus can form a transport safeguard. The nub-shaped projections can in particular serve to prevent the juxtaposed containers in a pallet assembly from treading open.

The securing ring can comprise, in particular, a band-shaped support bracket which is attached to two mounting points on opposite sides of the securing ring. The support bracket also forms a cross brace for the locking ring. The holding points are typically formed on the inside of the securing area of the securing ring. If the securing ring is placed on the container and secured against lifting off the container with the aid of the locking elements or a locking edge, the container secured with the securing ring can be held on the support bracket of the securing ring and transported. In this case, there is no need to attach a handle to the container. The band-shaped support bracket can be made from the same material as the locking ring, for example from plastic. In this case, the locking ring can with the support bracket are formed in one piece. Alternatively, it is possible to manufacture the support bracket from a different material than the securing ring, for example from a metallic material.

The locking ring is preferably made of plastic. In this case, the locking ring is usually manufactured by means of an injection molding process. The use of a locking ring made of plastic is particularly advantageous in order to be able to manufacture the elements described above, such as latching lugs, recesses, etc., at low cost. A securing ring that is formed from plastic generally only requires a wall thickness of the side wall which essentially corresponds to the wall thickness of the side wall of a container that is secured with the securing ring. Even with a multi-part locking ring, which is provided with a stacking ring, for example, the individual parts are usually made of plastic.

In an alternative example, the locking ring is formed from a metallic material - or possibly from another alternative material (apart from plastic). The structural design and the geometry of the locking ring are based on the production process used. A metallic locking ring can be manufactured, for example, in a roll forming process. In this case, too, the securing ring can have a securing area, on the upper side of which a support surface for a further securing ring is formed, for example in a depression on the upper side of the securing area. In this way, several metal locking rings can be stacked on top of one another. In the case of a metallic securing ring, too, a stacking area can be formed which, for example, adjoins an essentially U-shaped sub-area of the securing area to create a free space for components attached to the top of a cover, in particular in the form of cover adapters. Instead of locking elements, the metallic locking ring can for example have a locking edge running around the underside of the self-contained side wall, which is optionally only interrupted in the area of the recesses for the mounting points of the support bracket. When the locking ring is pushed onto the container, the locking ring and, if applicable, the container are elastically deformed so that the inwardly protruding locking edge is pressed outward. To release the locking ring from the container, it may be necessary to move the locking edge outward with the aid of a tool in order to be able to lift the locking ring from the container.

It goes without saying that retaining rings can also be produced as a composite or a combination of plastics and, for example, metallic materials. In this case, the U-shaped securing area could be manufactured from tinplate, for example using a roll-forming process, while the side wall of the securing ring with the latching areas and the stacking area are molded from plastic. The shape of the plastic geometry and the connection with the metal component takes place during an injection molding process.

As has been described above, with the container according to the invention, a high level of transport security can be ensured with minimal use of material, which ideally also enables UN approval for solids or even liquids. The locking ring serving as a transport lock is easy to handle both for a bottler and for a user. As described above, the container or the retaining rings can be nested or stacked. In particular, the locking ring enables the container to be opened and closed reversibly.

As has also been described above, the container has a circumferential engagement region on its edge for cooperation with the lid placed on the container, the edge preferably having a skirt which is spaced from the side wall of the container and adjoins the engagement region and on the the annular side wall of the locking ring typically lies flat or in a form-fitting manner. As described above, in this case a double edge is formed on the container in the region of the opening. In this case, the locking ring preferably extends along the entire height of the apron and engages behind the apron on its underside with the inwardly protruding locking elements or with the locking edge.

At least one cover opening can be formed in the cover and a cover adapter, in particular releasably connected to the cover, can be attached in the opening, which has a nozzle protruding over the top of the cover with a pouring opening, which is connected to a closure, another component, but in particular with a twist lock, can be closed, with at least one foil bag preferably being attached to the lid adapter. The lid adapter enables the container, in particular in the form of a bucket, to take over the functionality of a hollow body, such as a canister. The cover opening (s) into which a respective cover adapter is inserted can be produced, for example, by breaking out a cover section with a perforated, pre-punched opening geometry. A plurality of cover openings, into each of which a cover adapter is inserted, can be formed on the cover. The number of lid adapters is determined by the available area of the lid and the size of the lid adapter are limited. It goes without saying that several cover openings with different sizes and / or geometries can be provided for inserting corresponding cover adapters on one and the same cover. A respective cover adapter can be attached to the cover or to the edge of the cover opening with the aid of one or more latching elements.

The lid adapter, more precisely the closure (lid), can in principle be designed as a twist lock, pull-out lock, or a snap lock. When providing a rotary fastener, it is necessary to transmit the torque that occurs when closing and opening the rotary fastener to the adjacent cover. This can be achieved, for example, by a non-positive connection of the cover adapter with the cover in the area of a connection surface of the cover adapter, which is typically a flat surface that is connected to the cover by a welding process or possibly by a material connection, e.g. by gluing , is permanently connected. The at least one film bag described above can be connected to the lid adapter on the rear side of the connection surface. The connection with a foil bag can also be made materially, e.g. by gluing, or by another connection technique, e.g. by welding.

The cover adapter can be detachable and, in particular, loosely, ie connected to the cover with (little) play. Due to the loose connection with the lid, an air gap remains between the lid adapter and the lid, through which air can flow into the container closed with the lid when the filling material is emptied. That way you can typically a glug-free emptying of the filling material from the foil bag located in the container takes place. To transmit the torque from the cover adapter to the cover, the cover adapter can have at least one projection extending outward from a (threaded) connecting piece for engaging in a complementary shaped recess at the edge of the cover opening, or vice versa.

The material of the container, the lid and / or the locking ring can be polyethylene, polypropylene, polyamides, PET or polyolefins. Containers made from polyolefins, in particular from polypropylene, polyethylene, polyamide or from polyethylene terephthalate (PET) are typically inexpensive to manufacture. Furthermore, such containers have advantageous properties, such as, for example, great resistance due to high toughness and elongation at break values. In principle, however, the container and / or the lid and / or the locking ring can also be made from other plastic materials (in particular from thermoplastics, possibly also from thermosets). The container, the securing ring and / or the lid are typically manufactured using an injection molding process, but it is also possible, if necessary, to manufacture the container using a deep-drawing or blow-molding process. The locking ring can consist of plastic, but it is also possible to produce the locking ring from a composite of plastic and metal or of metal, as described above. In particular, it is advantageous if the locking ring, the lid and the container, ie the entire container, are made from a recyclable plastic.

Further advantages of the invention emerge from the description and the drawing. The features mentioned above and below can also be used according to the invention individually or collectively in any combination. The embodiments shown and described are not to be understood as an exhaustive list, but rather have an exemplary character for describing the invention.

Fig. 1

eine Darstellung einer Ausführungsform eines erfindungsgemäßen Gebindes mit einem Eimer, einem Deckel und einem Sicherungsring zur Transportsicherung des Deckels,

Fig. 2

eine schematische Darstellung des Gebindes von Fig. 1 beim Aufschieben des Sicherungsrings auf einen Behälter, wobei der Deckel in dem Sicherungsring vormontiert ist,

Fig. 3a-c

drei Schnittdarstellungen des Gebindes von Fig. 2, vor, während und nach dem Aufschieben des Sicherungsrings auf den Rand des Behälters,

Fig. 4a,b

eine Seitenansicht und einen Schnitt einer verschwenkbaren Lasche zum Bewegen eines an der Lasche angebrachten Rastelements,

Fig. 5a,b

einen Teilbereich des Sicherungsrings sowie einen Schnitt durch einen Sicherungsring mit Rastelementen zur Verriegelung des Sicherungsrings an dem Behälter,

Fig. 6a,b

einen Teilbereich des Sicherungsrings mit einer Aufreißlasche zum Auftrennen einer Seitenwand und eines Sicherungsbereichs des Sicherungsrings,

Fig. 7a,b

einen Sicherungsring, an dem eine Stufe mit einer Auflagefläche gebildet ist, auf der ein weiterer Sicherungsring aufliegt,

Fig. 8a,b

zwei übereinander gestapelte Sicherungsringe, die jeweils ein Halteelement zum Halten eines in dem Sicherungsring vormontierten Deckels aufweisen,

Fig. 9

ein Gebinde mit einem Sicherungsring mit noppenförmigen Vorsprüngen an einer Außenseite der Seitenwand,

Fig. 10

ein Schnitt durch ein Gebinde mit einem Deckel, an dessen Oberseite Versteifungselemente gebildet sind, die beim Aufwölben des Deckels gegen den Sicherungsring drücken,

Fig. 11a-c

Darstellungen eines Gebindes mit einem Sicherungsring, der ein Indexierfenster zum Eingriff eines an dem Deckel gebildeten Indexierelements aufweist,

Fig. 12a,b

Darstellungen eines Gebindes mit einem Sicherungsring, der einen Stapelbereich mit einer Auflagefläche für einen Behälter eines weiteren Gebindes aufweist,

Fig. 13a,b

Darstellungen analog zu Fig. 12a,b, bei dem der Stapelbereich des Sicherungsrings als Stapelring ausgebildet ist, der lösbar mit einem Sicherungsbereich des Sicherungsrings verbunden ist,

Fig. 14a,b

Darstellungen analog zu Fig. 7a,b mit zwei übereinander gestapelten Sicherungsringen, die einen Stapelbereich aufweisen,

Fig. 15a,b

Darstellungen analog zu Fig. 14a,b mit zwei übereinander gestapelten Sicherungsringen, die einen Stapelbereich und einen vormontierten Deckel aufweisen,

Fig. 16

eine Darstellung eines Gebindes mit einer an dem Stapelbereich des Sicherungsrings gebildeten Ausgießmulde zum zielgenauen Ausgießen von Füllgut,

Fig. 17

eine Darstellung eines Gebindes mit einem an dem Sicherungsring gebildeten bandförmigen Tragbügel,

Fig. 18

eine Darstellung eines Gebindes mit einem Deckel, der einen wannenförmigen Teilbereich aufweist, der von einer Abdeckfläche eines Abdeckbereichs des Sicherungsrings vollständig abgedeckt wird,

Fig. 19

eine Darstellung eines Gebindes analog zu Fig. 1, das eine rechteckige Grundform sowie einen Deckel mit zwei Deckeladaptern aufweist,

Fig. 20a,b

eine Darstellung des Gebindes von Fig. 19, das kopfüber auf die Oberseite eines Randes eines weiteren, leeren Behälters aufgesetzt ist,

Fig. 21a,b

Darstellungen eines Sicherungsrings, der aus einem metallischen Material gebildet ist,

Fig. 22a,b

Darstellungen eines mit dem Sicherungsring gemäß Fig. 21a,b transportgesicherten, nicht erfindungsgemäßen Gebindes, auf das ein weiterer Behälter gestapelt ist,

Fig. 23a,b

Darstellungen eines Sicherungsrings aus einem metallischen Material, der einen Stapelbereich aufweist, sowie

Fig. 24a,b

Darstellungen eines mit dem Sicherungsring gemäß Fig. 23a,b transportgesicherten, nicht erfindungsgemäßen Gebindes, auf das ein weiterer Behälter gestapelt ist.

The invention is illustrated in the drawings and is explained in more detail using exemplary embodiments. It shows the:

Fig. 1

a representation of an embodiment of a container according to the invention with a bucket, a lid and a locking ring to secure the lid in transit,

Fig. 2

a schematic representation of the container of Fig. 1 when sliding the locking ring onto a container, the lid being pre-assembled in the locking ring,

Figures 3a-c

three sectional views of the container from Fig. 2 , before, during and after sliding the locking ring onto the edge of the container,

Figures 4a, b

a side view and a section of a pivotable tab for moving a latching element attached to the tab,

Fig. 5a, b

a partial area of the locking ring and a section through a locking ring with locking elements for locking the locking ring on the container,

Fig. 6a, b

a partial area of the securing ring with a tear-open tab for separating a side wall and a securing area of the securing ring,

Figures 7a, b

a circlip on which a step is formed with a bearing surface on which another circlip rests,

Figures 8a, b

two circlips stacked on top of each other, each having a holding element for holding a cover preassembled in the circlip,

Fig. 9

a container with a locking ring with knob-shaped projections on an outside of the side wall,

Fig. 10

a section through a container with a lid, on the upper side of which stiffening elements are formed which press against the locking ring when the lid arches,

Figures 11a-c

Representations of a container with a locking ring which has an indexing window for engaging an indexing element formed on the lid,

Figures 12a, b

Representations of a container with a locking ring, which has a stacking area with a support surface for a container of another container,

Figures 13a, b

Representations analogous to Figures 12a, b , in which the stacking area of the securing ring is designed as a stacking ring which is detachably connected to a securing area of the securing ring,

Figures 14a, b

Representations analogous to Figures 7a, b with two circlips stacked on top of each other that have a stacking area

Figures 15a, b

Representations analogous to Figures 14a, b with two circlips stacked on top of each other, which have a stacking area and a pre-assembled cover,

Fig. 16

a representation of a container with a pouring trough formed on the stacking area of the locking ring for the precise pouring of contents,

Fig. 17

a representation of a container with a band-shaped support bracket formed on the locking ring,

Fig. 18

a representation of a container with a lid, which has a trough-shaped partial area which is completely covered by a cover surface of a cover area of the locking ring,

Fig. 19

a representation of a container analogous to Fig. 1 , which has a rectangular basic shape and a lid with two lid adapters,

Figures 20a, b

a representation of the container of Fig. 19 , which is placed upside down on the top of an edge of another, empty container,

Figures 21a, b

Representations of a locking ring that is formed from a metallic material,

Figures 22a, b

Representations of a with the locking ring according to Figure 21a , b container secured for transport, not according to the invention, on which another container is stacked,

Figures 23a, b

Representations of a locking ring made of a metallic material, which has a stacking area, and

Figures 24a, b

Representations of a with the locking ring according to Figure 23a , b transport-secured, container not according to the invention, on which another container is stacked.

Fig. 1 shows a container 1, which has a container 2 in the form of a bucket, which has a base 3 with a circular geometry. A circumferential side wall 4 adjoins the bottom 3 and widens slightly conically in the direction of an upper side of the container 2. An opening formed on the top of the container 2 is in the in Fig. 1 The container 1 shown is closed by a lid 5. To secure the container 1 during transport, the lid 5 is secured by a locking ring 6 , which prevents the lid 5 from being inadvertently detached from the container 2 when external forces act on the container 1, as can occur during transport, for example the filling material located in the container 2 escapes unintentionally.

The in Fig. 1 The securing ring 6 shown has a circumferential, annular and self-contained side wall 7 . The side wall 7 is cylindrical, has a height of slightly more than approximately 3 cm and encompasses both the cover 5 and the container 2 on the edge. The inner diameter of the side wall 7 of the securing ring 6 is adapted to the outer diameter of the container 2. The securing ring 6 has on its upper side a securing area 8 protruding inwardly beyond the side wall 7, which in the in Fig. 1 The securing position shown of the securing ring 6 overlaps a laterally circumferential edge of the cover 5. The locking ring 6 is in the Fig. 1 secured position shown secured against lifting upwards from the container 2 by a plurality of locking elements 9 in the form of locking lugs which protrude over the side wall 7 of the locking ring 6 inward. The cover 5 is thus protected against being lifted off the container 2 by the securing area 8 of the securing ring 6 and the securing ring 6 itself is protected against being lifted off the container 2 by the locking elements 9.

To attach the securing ring 6 to the container 2 closed with the lid 5, the securing ring 6 is not reduced in diameter, as is the case with a clamping ring, but rather the securing ring 6 is pushed or bruised from above onto the container 2 closed with the lid 5, as below based on Fig. 2 and Fig. 3a -c is described. Fig. 2 shows the locking ring 6 in a position in which it is placed on the top of the container 2 closed with the lid 5, Fig. 3a shows a section along the line AA of FIG Fig. 2 shown container 1.

As in Fig. 3a As can be seen, the container 2 has a circumferential edge 10 , which is designed as a double edge and on which a circumferential skirt 11 is formed, which is spaced from the side wall 4 of the container 2. The apron 11 adjoins an engagement area 12 of the edge 10 of the container 2, on which a circumferential clamping profile is formed in the form of a groove 13 , which interacts with a corresponding clamping profile 14 in the form of a latching edge that is formed on the edge 15 of the lid 5 is to close the container 2 with the lid 5. The edge 15 of the cover 5 protrudes over the cover surface, ie over the flat area of the cover, upwards. To stiffen the apron 11, stiffening ribs 16 are provided which extend from the outside of the side wall 4 of the container 2 to the inside of the apron 11.

In the in Fig. 3a The position of the locking ring 6 shown, the locking elements 9 in the form of the locking lugs protrude radially further inward than the outside of the apron 11. When the locking ring 6 is pushed onto the container 2 vertically from above, the top of the locking ring 6, which is described here Example made of plastic is exerted a force. The locking elements 9, which in the in Fig. 3a The position shown on the outside of the edge 15 of the lid 5 or directly above the apron 11 are elastically deflected outward by the force effect, ie the locking ring 6 is elastically deformed so that the locking elements 9 along the outside of the apron 11 slide like this in Figure 3b is shown until the locking ring 6 the in Figure 3c has reached the securing position shown, in which the locking elements 9 engage behind the apron 11 on its underside, so that the securing ring 6 can no longer be easily removed from the container 2 upwards and is fixed for transport.

The in Fig. 2 and Figures 3a-c In the example shown, the locking elements 9 are formed in the form of locking lugs on the underside of the securing ring 6, ie on that side of the securing ring 6 which faces away from the securing area 8 in order to engage behind the apron 11 on its underside. This is favorable because in this case the lower edge of the skirt 11, which is present anyway, can be used for the engagement of the latching elements 9, so that the container 2 does not have to be modified in order to apply the securing ring 6. With the help of the securing ring 6, an opening tab (not shown) for lifting the lid 5 is covered and thus secured, which is formed on the edge 10 of the container 2 and which extends from the skirt 11 into the engagement area 12 of the lid 5.

In order to increase the elasticity of the securing ring 6 in the area of the side wall 7 of the securing ring 6 in which the locking elements 9 are formed, recesses 17 are formed in the side wall 7 above the locking elements 9, as shown, for example, in FIG FIGS. 1 and 2 can be seen. The recesses 17 or windows in the side wall 7 widen, starting from the locking elements 9, in a V-shape upwards. In order to be able to demold the securing ring 6 during production in an injection molding process along its vertical axis, ie in the example shown in the vertical direction, without having to use slide tools or the like for this purpose, it is advantageous if the recesses 17 are at least in the radial direction just as far into the securing area 7 as the latching elements 9 protrude inwardly beyond the side wall 7, as is shown, for example, in the sectional views of FIG Figures 3a-c can be seen.

In order to lift the securing ring 6 from the container 2 closed with the lid 5, it is necessary to release the latching elements 9 from their engagement on the underside of the apron 11. In order to achieve this, engagement areas 18 are formed below the locking elements 9, which have an engagement surface on their inside for applying a force directed towards the outside of the side wall. In the example shown, the areas of attack 18 protrude downward beyond the lower edge of the circumferential side wall 7. On the inside of the engagement areas 18, an operator can exert a force directed towards the outside of the side wall 7 in order to move the latching elements 9 outward in the radial direction so far that the engagement on the underside of the apron 11 is released, as shown in FIG Figure 3c is indicated by an arrow. The engagement areas 18 thus form a lever for releasing the locking connection of the locking ring 6 with the underside of the apron 11. As when the locking ring 6 is pushed on, the recesses 17 formed above the locking elements 9 also have a favorable effect when the locking ring 6 is released, since these the Increase the elasticity of the securing ring 6 in the area of the locking elements 9.

The in Fig. 1 and Figures 3a-c When an outwardly acting force is applied to a respective application area 18, the side wall 7 is elastically deformed in the area of the latching element 9 over its entire height. The in Fig. 2 and Figures 4a, b In the example shown, a respective latching element 9 is attached together with a respective engagement area 18 on a tab 19 which is hinged to the side wall 7 of the securing ring 6 via a film hinge and which protrudes with the engagement area 18 beyond the underside of the side wall 7. As in Figure 4b is shown, it is sufficient in this case for an operator to pivot the tab 19 outwardly around the latching element 9 to disengage from the underside of the skirt 11 of the container 2. The tab 19 can be connected at its side edges via predetermined breaking points to the side wall 7 of the locking ring 6, which when the tab 19 is pivoted for the first time from the in Figure 4a position shown are broken so that the tab 19 or the predetermined breaking points form a tamper-evident security for the container 1.

Fig. 5a, b show an example of a securing ring 6 in which, in contrast to the securing rings described above, no engagement areas 18 are provided for an operator in order to release the latching elements 9 from engagement with the underside of the apron 11. The side wall 7 of the locking ring 6 ends in this case practically directly below the locking elements 9, ie the underside of the circumferential edge of the locking ring 6 ends at a distance of less than 10 mm or less than 5 mm from the bottom of the locking elements 9. The locking elements 9, more precisely an upwardly protruding, barb-like retaining lug of the latching element 9, thus locks the securing ring 6 on the container 2 closed with the lid 5.

As in particular in Figure 5b It can be clearly seen that an operator has practically no possibility of attack in order to act on the locking elements 9 and to release them from the locking position. The in Fig. 5a, b The locking ring 6 shown can be used, for example, to permanently close disposal containers, for example medical waste containers. The release of the locking ring 6 from the container 2 is basically possible with the aid of a tool, but the release of the locking ring 6 is generally not done without being destroyed.

Fig. 6a, b show a securing ring 6 with a predetermined breaking element in the form of a pull tab 20 for irreversibly separating the annular, self-contained side wall 7 of the locking ring 6 and the self-contained securing area 8. The pull tab 20 extends over the entire height of the side wall 7 and over the whole Securing area 8 in order to be able to completely separate the securing ring 6. As in Fig. 6a, b As can be seen, a protruding contact surface for an operator is formed on the lower edge of the pull tab 20 in order to facilitate gripping of the pull tab 20. After the securing ring 6 has been completely separated, its diameter can be increased so that it can be removed from the container 2 without any problems. In particular, it is not necessary in this case to pull the securing ring 6 upwards from the container 2.

Figures 7a, b show a first, lower locking ring 6, on which a second, structurally identical, upper locking ring 6a is stacked. To support the upper securing ring 6a, the lower securing ring 6 has a step 21 on its outside, which is formed at the transition between the securing area 8 and the side wall 7. A horizontal upper side of the step 21 forms a bearing surface 22 for bearing the lower side of the side wall 7 of the upper securing ring 6a. The engagement areas 18 of the upper securing ring 6a protruding beyond the underside of the side wall 7 of the upper securing ring 6a engage in the recesses 17 of the lower securing ring 6, as shown in FIG Figure 7a is easy to see. In this way, on the one hand, the upper securing ring 6a can rest as desired on the bearing surface 22 of the lower securing ring 6 and, on the other hand, the engagement of the engagement areas 18 of the upper securing ring 6a in the recesses 17 of the lower securing ring 6, a non-rotatable mounting of the two securing rings 6, 6a stacked one on top of the other can be guaranteed. The recesses 17 here preferably have a width that is adapted to the width of the engagement areas 18, so that the engagement areas 18 rest with their side edges on the side edges of the recesses 17 with almost no play and the engagement areas 18 and thus the upper locking ring 6a laterally relative to fix the lower circlip 6.

Figure 8a shows two circlips 6, 6a stacked on top of one another, which, like those in FIG Figures 7a, b locking rings 6, 6a shown are formed, but in each of which a cover 5 is preassembled or held in a form-fitting manner. In order to hold the cover 5 in the respective securing ring 6, 6a, holding elements 23 in the form of holding lugs protruding inwards beyond the side wall 7 are attached to a respective securing ring 6, 6a. The cover 5 is in this case received between the respective holding elements 23 and the securing area 8 in an essentially form-fitting manner. For this purpose, the securing area 8 has a U-shaped partial area 24 which engages around the edge 15 of the cover 5 on its upper side. A radially inner leg 25 of the U-shaped subregion 24 forms a lateral contact surface for the radially inner edge of the edge 15 of the lid 5 protruding above the lid surface. The preassembled lid 5 lies with the underside of the free end of its radially outer surface lying edge on a support surface which is formed on the top of the holding element 23.

In order to pre-assemble the cover 5 in the securing ring 6 and to place the securing ring 6 with the pre-assembled cover 5 on the container 2, as shown in FIG Figure 8b is shown, it is necessary to remove the holding element 23 from the in Figure 8a shown, inward via the Side wall 7 protruding position in the in Figure 8b To move the release position shown, in which the holding element 23 practically no longer protrudes beyond the side wall 7 inward. There are several ways to achieve this.

The in Figures 8a, b In the example shown, the holding element 23 is formed on an elastically deformable sub-area of the side wall 7 in the form of an elastically deformable tongue area 26 which is attached in a recess 27 of the side wall 7 that forms a window (see also FIG Figure 7a ). The holding element 23 is attached to the free end of the tongue area 26 and has an inlet slope on which the apron 11 can slide along with the preassembled cover 5 when the locking ring 6 is pushed on, in order to move the holding element 23 outwards with elastic deformation of the tongue area 26 move the release position. Like the recess 17, which is formed above a respective latching element 9, the recess 27, in which the tongue area 26 is formed, extends in the securing area 8 at least as far inwards as the retaining element 23 in order to prevent the securing ring 6 from being removed from the mold To simplify manufacture in an injection molding process.

Due to the elastic expansion of the locking ring 7 in the horizontal direction when it is pushed onto the container 2, the cover 5 can also expand elastically horizontally in the area of its clamping profile 14 and in this way engage in the groove 13 of the engagement area 12 of the container 2, as shown in FIG Figure 8b is shown. The securing ring 6 can be pushed onto the container 2 either with or without a preassembled lid 5, manually or by machine, after the securing ring 6 has been placed on the edge 10 of the container 2, an in vertical force is applied. For this purpose it is usually necessary to orientate the locking ring 6 in a suitable manner, as follows with the aid of FIG Fig. 9 is pictured.

As in Fig. 9 As can be seen, the container 2 has two holding points 28 for holding the two ends of a support bracket 29, which is metallic in the example shown. The support bracket 29 can also be formed from plastic. The securing ring 7 has essentially semicircular recesses 30, which are open downwards and which are open downwards, for receiving the mounting points 28 or the ends of the support bracket 29, at two diametrically opposed locations along the side wall 6 in the example shown. In order to push on the securing ring 6, it is necessary to place it in the correct position in the circumferential direction on the container 2 so that the mounting points 28 can be received by the recesses 30.

As in Fig. 9 It can also be seen that knob-shaped projections 31 are formed on the circumferential side wall 7 of the securing ring 6, which prevent the container 1 from treading open during transport in a pallet assembly. As for example in Fig. 2 As can be seen, knob-shaped projections 31 are also formed on the skirt 11 of the container 2, the shape and spacing of which are adapted to the shape and spacing of the knob-shaped projections 31 on the side wall 7 of the locking ring 6. In this way, it is possible to prevent mounting on a pallet assembly in which both containers 1, which are secured with a securing ring 6 for transport, and containers without a securing ring 6 are transported on a common pallet.

As in Fig. 9 and in Fig. 10 As can be seen, the cover 5 has, in the vicinity of its outer edge 15, stiffening elements 32 which protrude upward beyond the cover surface and are arranged essentially in the shape of a circular ring. If the cover 5 secured with the securing ring 6 is deformed due to an internal pressure in the container 2, this arches upwards in a radially inner area which is not secured by the securing ring 6. Here, the stiffening elements 32 are pressed radially outward in the direction of the U-shaped partial area 24 of the securing area 8, more precisely against its radially inner leg 25, as shown in FIG Fig. 10 is indicated by an arrow. The stiffening elements 32 thus form an additional clamping contour for the cover 5, since the stiffening elements 32 produce a self-locking effect when the cover 5 is arched, which additionally fixes the cover 5 to the securing ring 6.

Figure 11a -c show a container 1 in which a cover opening 33 is formed in the cover 5, more precisely in the area of the cover surface. The lid opening 33 serves to receive a lid adapter for emptying filling material from the container 2, as will be described in more detail below. The lid opening 33, if it is provided with a suitable lid adapter, can in principle also serve to fill the container 2. In order to pour the filling material over the cover opening 33 or over the cover adapter, it makes sense to suitably align the cover opening 33 in relation to the mounting points 28 of the support bracket 29, typically in such a way that the cover opening 33 is centered in the circumferential direction between the two mounting points 28 is arranged. In order to achieve this, it is necessary to align the cover 5 in the correct position relative to the locking ring 6 in the circumferential direction. The orientation of the The securing ring 6 in the circumferential direction relative to the container 2 is fixed by the recesses 30 for receiving the mounting points 28.

For the correct orientation of the cover 5, an indexing element 34 in the form of a nose protruding outward over the remaining edge 15 of the cover 5 is formed on the outside of the edge 15 of the cover 5, which is inserted into a securing ring 6, more precisely on the side wall 7, formed indexing window 35 engages. The width of the indexing element 34 in the circumferential direction is adapted to the width of the indexing window 35, so that the alignment of the lid 5 relative to the locking ring 6 can practically not be changed and the filling material can be poured out through the lid opening 33 as desired centrally between the mounting points 28 for the support bracket 29 can be done. One of the recesses 27 in which the resilient tongue region 26 is formed can be used as the indexing window 35 by increasing the width of the recess 27.

The in Figures 12a, b The container 1 shown is in the lid opening 33 of Figure 11a a cover adapter 36 is used, which is closed with a twist lock 37 . The lid adapter 36 has an in Figure 12b nozzle 38 to be recognized, which extends upwards from the cover surface and which has a pouring opening 39 in order to empty the container 2. In order to stack a container 2a of another container on the container 1, it is necessary to create a free space for the upwardly protruding nozzle 38.

For this purpose, the in Figures 12a, b The locking ring 6 shown has a stacking area 40 . The stacking area 40 is above the securing area 8, more precisely above the top of the U-shaped Sub-area 24 of the security area 8, upwards over. A support surface 41 for supporting the base 3 of the further container 2a is formed on the stacking area 40. As in Figure 12b As can be seen, the support surface 41 of the stacking area 40 runs at the same height as the top of the twist lock 37 of the lid adapter 36. In this way, the base 3 of the further container 2a not only rests on the annular support surface 41, but the container 2a becomes additionally supported by the cover adapter 36 or by the top of the rotary fastener 37.

The in Figures 12a, b In the example shown, the annular circumferential stacking area 40 is formed in one piece with the rest of the securing ring 6. The stacking area 40 adjoins the U-shaped partial area 24 of the securing area 8 inward. More precisely, a first, outer side wall 42 of the stacking area 40 extends upwards starting from the inner leg 25 of the U-shaped sub-area. The stacking area 40 is essentially U-shaped in cross section and, in addition to the horizontally running support surface 41, has a second, inner side wall 43 which forms the second leg of the U-shaped cross section of the stacking area 40. The inner side wall 43 of the stacking area 40 extends downward so far that the free end of the inner side wall 43 rests on the top of the lid 5 in order to support the stacking area 40 on the lid 5. In the case of the in FIG Figure 12a , b, a circumferential collar area 44 protruding upward beyond the support surface 41 radially outward. The collar area 44 serves to fix the position of the further container 2a placed on the support surface 41 at the side.

Figures 13a, b show a container 1 in which the securing ring 6 also has a stacking area, which, however, is designed in the form of a stacking ring 40. The stacking ring 40 is detachably connected to the securing area 8, more precisely to the U-shaped sub-area 24 of the securing area 8. For this purpose, the U-shaped portion 24 has on its inside a circumferential, in cross-section U-shaped channel 45 in which a free end of the first, outer side wall 42 of the stacking ring 40 is received, as in Figure 13b can be seen. In addition, the stacking ring 40 has four engagement openings 46 which are formed on the second, radially inner side wall 43 of the stacking ring 40. The engagement openings 46 serve to lift the stacking ring 40 from the securing area 8 of the securing ring 6. This can be beneficial, for example, when filling material is to be emptied from the container 2 via the pouring opening 39 formed on the cover adapter 36.

Figures 14a, b show a locking ring 6 on which a further, structurally identical locking ring 6a is stacked. The locking ring 6 is as in Figures 12a, b and has a stacking area 40. The two retaining rings 6, 6a are here based on the above in connection with Figures 7a, b stacked one above the other, ie the upper locking ring 6a rests on the bearing surface 22 of the lower locking ring 6 and a respective engagement area 18 of the upper locking ring 6a engages in a recess 17 of the lower locking ring 6. This makes use of the fact that the two stacking areas 40 of the securing rings 6, 6a stacked one on top of the other have a sufficiently small height so that they do not collide with one another in the stacked state.

Figures 15a, b show two circlips 6, 6a stacked on top of each other, in which, in contrast to the one in FIG Figures 14a, b The example shown in each case a cover 5 is held, specifically to the above in connection with Figures 8a, b described way. As with Figure 15a As can be seen, the upper securing ring 6a does not lie with the underside of the circumferential side wall 7, but rather with the underside of the engagement areas 18 protruding downward over the side wall 7 on the bearing surface 22 of the lower securing ring 6, ie the upper securing ring 6a is opposite the in Figure 14a shown upper locking ring 6a rotated in the circumferential direction. By placing the upper securing ring 6a on the underside of the engagement areas 18, the free space between the two stacked securing rings 6, 6a is increased in order to create sufficient space for receiving the preassembled cover 5. The height of the collar area 44 of the stacking area 40 is selected such that the cover 5 held in the upper securing ring 6a rests on the top of the collar area 44, ie the top of the collar area 44 forms a support surface for the cover 5 of the upper securing ring 6a.

As in Figure 15a can also be seen on the upper securing ring 6a, on the step 21 of the securing area 8, on which the bearing surface 22 is formed, stiffening elements 47 are formed, which are designed in the form of stiffening ribs. Between two adjacent stiffening elements 47, a free space 48 is formed which has a width selected so that the downwardly protruding engagement area 18 of the upper securing ring 6a stacked on the securing ring 6 is fixed in its lateral position. The free space 48 can, for example, be adapted to the width of a respective latching element 9 protruding inwardly beyond the side wall 7, which latching element is formed on the inside of the engagement area 18, so that the latching element 9 can engage in the free space 48 with as little play as possible. Additionally or alternatively, the shape of the stiffening elements 47 can also be adapted to the shape of the latching elements 9 or the engagement areas 18 in order to achieve a lateral fixation during stacking.

Fig. 16 shows a container 1 which has a stacking area 40 which is formed in one piece with the securing area 8. In order to be able to pour out a filling material via the pouring opening 39 of the lid adapter 36 without having to remove the securing ring 6, a pouring trough 49 is formed on the stacking area 40. If the cover adapter 36 is correctly aligned with the securing ring 6 with the aid of the indexing described above, the container 2 can be emptied precisely via the pouring trough 49.

Fig. 17 shows a container 1 in which a band-shaped support bracket 50 is formed on the securing ring 6 and is fastened to two mounting points 51 on opposite sides of the securing ring 6. In the example shown, the support bracket 50 is also made of plastic and is manufactured in one piece with the securing ring 6. As in Fig. 17 As can be seen, in this case there is no need to provide a support bracket 29 which is attached to the mounting points 28 on the outside of the edge 10 of the container 2.

Fig. 18 shows a container 1 with a securing ring 6, which has a cover area 58 protruding downward beyond the inwardly protruding, annular securing area 8. The cover area 58 adjoins the securing area 8 radially inward and has a circumferential, conical side wall which protrudes downward beyond the U-shaped securing area 8 and is planar, extending horizontally Direction extending cover surface 59 merges. The planar cover surface 59 is at the level of the cover surface and completely covers a trough-shaped partial area 60 of the cover 5 that protrudes downwards and extends into the interior of the container 2. The securing ring 6 with the cover area 58 thus overlaps in the case of the in Fig. 18 Example shown the entire cover 5 from above. An intermediate space 61 is formed between the cover surface 59 at the level of the cover surface and the top of the trough-shaped subregion 60, in which objects, for example tools, which are useful for an operator of the container 1 can be stored.

It goes without saying that the cover area 58 or the cover surface 59 does not have to completely cover the trough-shaped partial area 60, but that in certain applications a partial cover is sufficient. The cover area 58 can also be used to cover one or more partial areas 60 of the cover 5 which protrude downward and which have a geometry deviating from a trough-shaped geometry. The cover area 58 can be molded onto the securing area 8, as shown in FIG Fig. 18 is shown, but a detachable attachment to the securing area 8 or to its U-shaped sub-area 24 is also possible, as was described above in connection with the stacking area 40.

Fig. 19 shows a container 1 which differs from the container 1 described further above essentially in that it has a rectangular basic shape and in that two cover adapters 36 are attached to the cover 5 of the container 1. As in the examples described above, the securing ring 6 has a stacking area 40 in order to stack two or more of the containers 2 on top of one another.

Figures 20a, b show the in Fig. 19 shown container 2, in which the rotary closures 37 have been removed from the lid adapters 36, in a position placed upside down on the top of the side wall 4 of a further, empty container 2a. To rest upside down on the empty container 2a, the securing ring 6, more precisely the U-shaped sub-area 24 of the securing area 8 of the upside-down container 2, has a bearing surface 52 which is formed on the top of the middle leg of the U-shaped sub-area. The stacking area 40 of the securing ring 6 protrudes into an opening 53 which is formed on the top of the further container 2a. By placing the container 2 upside down on the further container 2a, the contents of two foil bags 54, which are connected to the lid adapters 36 and stored in the container 2, can be emptied into the further container 2a at the same time, which is advantageous for multi-component applications .

In the examples described above, a container 1 was described with a locking ring 6 made of plastic. The use of plastic as the material for the securing ring 6 is advantageous because of the elastic properties, in particular with regard to the possibility of deformation, when the securing ring 6 is pushed onto and off the edge 10 of the container 2. But it is also possible to produce the locking ring 6 from other materials, for example from metal.

Figures 21a, b show a locking ring 6 not according to the invention, which was made from rolled metal. The securing ring 6 also has a self-contained, circumferential side wall 7 on which recesses 30 for the mounting points 28 of a support bracket 29 are formed. Of the Securing ring 6 also has a self-contained, circumferential securing area 8 protruding inwardly beyond the side wall 7. On the underside of the circumferential side wall 7, a locking edge 55 is formed in order to secure the locking ring 6 on the edge of an in Figures 22a, b to attach the container 2 shown. When the securing ring 6 is pushed on, the apron 11 formed on the edge of the container is pressed inward and elastically deformed until the locking edge 55 engages behind the apron 11 on its underside and fixes the securing ring 6 on the container 2. As in Figure 22b As can be seen, the securing area 8 protruding inwardly beyond the side wall 7 has an essentially U-shaped partial area 24 which engages around the cover 5 and secures it on the container 2. On the upper side of the securing area 8, directly next to the U-shaped sub-area 24, a trough 56 is formed which forms a support surface 22 for supporting a further securing ring 6a, more precisely its locking edge 55. As with Figures 21a, b and 22a, b can be seen, both two retaining rings 6 and two or more containers 1 provided with retaining rings 6 can be stacked one on top of the other. The securing ring 6 can in particular serve to cover an opening tab 57 formed on the edge 10 of the container 2, which is shown in FIG Figure 22a is shown on the upper container 2a. In order to remove the securing ring 6 from the container 2, however, it may be necessary in this case to release the locking edge 55 from engagement under the apron 11 with the aid of a tool.

Figures 23a, b and 24a, b show circlips 6 not according to the invention, which differ from the in Figures 22a, b , and Figures 23a, b The locking rings 6 shown differ essentially in that they have a stacking area 40 which, as in the case of the locking rings 6 described above, which consist of Plastic, adjoin the securing area 8, more precisely to the U-shaped sub-area 24 of the securing area 8, and extending upwards from the securing area 8 and having a support surface 41 there for the bottom 3 of a (further) container 2. An inner side wall 43 of the stacking area 40 extends further down than the top of the U-shaped sub-area 24 in order to place the stacking area 40 on the cover 5 of the container 1 secured with the locking ring 6 and thereby support it, as shown in FIG Figure 24b can be seen. As in Figure 24b can also be seen, the stacking area 40 forms a free space for components protruding beyond the top of the cover 5, for example in the form of cover adapters 36.

When using a locking ring 6 made of a metallic material, it is advantageous if the lid 5 and the container 2 are made of plastic, since the elasticity of the plastic material simplifies the sliding of the metallic locking ring 6 onto the container 2. The plastic material of the container 2, the lid 5 and, if applicable, the securing ring 6 can in particular be polyethylene, polypropylene, polyamides, PET or polyolefins.

The locking ring 6 can also be produced as a composite or as a combination of plastics and, for example, metallic materials. In this case, the U-shaped securing area 8 can be produced from tinplate, for example by roll forming, while the side wall 7 of the securing ring 6 with the locking edge 55 or with the locking elements 9 and the possibly existing stacking area 40 are formed from plastic. The shape of the plastic geometry and the connection with the metal component can take place during an injection molding process.

In summary, a locking ring 6 can be used to achieve a high level of safety when transporting a container 1, which makes it possible to meet the requirements for UN approval for hazardous substances. The containers 1 described above are particularly machine-compatible on bucket and canister filling systems, i.e. they can be filled and emptied again manually or automatically. Here, if necessary, wide-neck drum applications can be substituted, in which a cover is screwed on to secure transport or secured with a metal clamping ring. When using cover adapters 36, a substitution of canister applications is possible, in particular if the cover adapters 36 are connected to the film bags 54 described above. The use of foil bags 54 is particularly advantageous for use in multi-component applications. The use of a securing ring 6 with a stacking area 40 ensures good residual emptying capacity despite the cover adapter 36, since no indentations have to be provided in the base 3 of the container 1 for receiving the cover adapter 36.

Claims (8)

1. Package (1), comprising:

   a container (2) made of plastic in the form of a bucket having a base (3) and having a circumferential side wall (4),

   a lid (5) for closing an opening (53) formed on the container (2), wherein the container (2) has on its edge (10) a circumferential engaging region (12) with a clamping profile which interacts with a clamping profile on an inner side of an edge (15) of the lid (5) in order to close the opening (53) of the container (2),

   a safety ring (6) for the safety in transport of the lid (5), formed preferably of plastic, mounted onto the container (2) in the form of the bucket, wherein a circumferential side wall (7) of the safety ring (6) grips around the edge (10) of the container (2) and a safety region (8) protruding to the inside across the side wall (7) of the safety ring (6) grips over the edge (15) of the lid (5),

   wherein the side wall (7) and/or the safety region (8) of the safety ring (6) are closed on itself,

   wherein detent elements (9) protruding on the side wall (7) of the safety ring (6) to the inside across the side wall (7) of the safety ring (6) are formed for fastening the safety ring (6) on the edge (10) of the container (2), and wherein between the side of the side wall (7) of the safety ring (6), on which is formed the safety region (8) protruding to the inside, and the detent elements (9) are formed recesses (17) in the side wall (7) of the safety ring (6).
2. Package according to claim 1, in which the safety ring (6) can be snapped onto the container (2) made of plastic in the form of the bucket, in particular when the lid (5) is mounted on the container (2).
3. Package according to claim 1 or 2, in which the detent elements (9) are formed on a side, facing away from the protruding safety region (8), of the side wall (7) of the safety ring (6), in order to grip behind a skirt (11) formed on the edge (10) of the container (2).
4. Package according to any of the preceding claims, in which the recesses (17) extend into the safety region (8) protruding to the inside across the side wall (6) of the safety ring (6) and preferably protrude at least as far to the inside as the detent elements (9).
5. Package according to any of the preceding claims, in which on the side wall (7) of the safety ring (6) in the region of the detent elements (9) are formed impacting regions (18) for applying a force directed to the outer side of the side wall (7) of the safety ring (6), wherein the impacting regions (18) preferably protrude across the side, facing away from the safety region (8), of the side wall (7) of the safety ring (6).
6. Package according to claim 5, in which a respective impacting region (18) and a respective detent element (9) are mounted on a pivotable flap (19) formed on the side wall (7) of the safety ring (6).
7. Package according to any of claims 5 or 6, in which the recesses (17) are designed for engaging the impacting regions (18), protruding beyond the side wall (7) of the safety ring (6), of a further identical safety ring (6a).
8. Package according to any of the preceding claims, in which the edge (10) of the container (2) has a skirt (11) spaced from the side wall (4) of the container (2), which skirt adjoins on the engaging region (12) and on which the circumferential side wall (7) of the safety ring (6) rests.

Images