DE102024127909A1 - Plastic container, plastic preform, container closure and adapter element, as well as device and method for a plastic container - Google Patents

Abstract

A plastic container (1) for holding media, in particular foodstuffs, comprising a container part (2) and a container closure (6) arranged on the container part (2), wherein the container part (2) has a bottom section, a base body (24) adjoining and extending in the longitudinal direction (L) of the plastic container (1), and an opening section (26) adjoining the base body (24) in the longitudinal direction (L), wherein the base body (24) has a cross-section deviating from a circular cross-section, and wherein the container closure (6) is arranged or can be arranged on the opening section (26), wherein this container closure (6) can be attached to the opening section (26) by a substantially rotation-free movement of the container closure (6) in the longitudinal direction (L) relative to the opening section (26), characterized in that the opening section (26) has first ratchet means (32) extending at least section by section in a circumferential direction of the mouth section (26) and the container closure (6) has second ratchet means (62) extending at least section by section in the circumferential direction of the container closure (6), wherein the first ratchet means (32) and the second ratchet means (62) are arranged such that the first ratchet means (32) and the second ratchet means (62) interact at least section by section.

Description

The present invention relates to a plastic container with a container closure, to a plastic preform, as well as a container closure and an adapter element, and to a device and a method for manufacturing such a plastic container.

Various types of plastic containers are known from the prior art. For example, containers with a rotationally symmetrical, particularly circular, cross-section are known. However, certain containers, also known as shaped bottles, such as those for ketchup, mustard, detergents, gels, or household cleaners, often have a non-circular cross-section, such as an elliptical one.

The EP 2 414 252 A1 reveals a closure with ratchet elements to allow twisting in a first direction and to block twisting in a second direction.

The WO 9 503 228A1 The diagram reveals an adapter with a thread and teeth. A closure can be fitted onto the adapter, which has elements complementary to the teeth.

Such containers are also usually manufactured using blow molding processes, and in particular stretch blow molding processes.

Typically, the container closure of such containers is also aligned in a defined rotational position relative to the container.

The production of such containers is relatively complex. On the one hand, the containers are expanded in blow molds, which have a cross-section that deviates from a circular one.

However, since the threads are already pre-fabricated in such plastic preforms, which are used for blowing the containers, it is necessary to insert the plastic preforms into the blow molds in a precisely defined rotational position.

In a single-stage process or extrusion blow molding, where the thread of the container is produced together with the bottle body in one operation, the position of the thread relative to the bottle body is largely ensured. This means that the thread or closure geometry is aligned with the bottle body.

This is not the case with two-stage processes. The plastic preform is produced using an injection molding machine and then dropped or placed onto a conveyor belt. This eliminates the possibility of fixing the plastic preform in a rotational position.

When processing the plastic preform in a stretch blow molding machine, the preform or the mouthpiece is therefore transferred to the mold in a random position. In this case, the neck is not aligned with the bottle body, and the container closure would also not be aligned with the contour of the container.

For this reason, such applications use a neck orientation and markings on the plastic preform for alignment.

Therefore, in this two-stage process, the plastic preform must have a marking in the neck area (preferably on the support ring) for mechanical or sensor-based camera orientation so that the neck area can be aligned with the container contour in the blow molding machine.

In addition, a process called preferential heating (differential heating in the circumferential direction of the plastic preforms) is sometimes used, in which the alignment is usually carried out in an oven in front of a heating tunnel that accomplishes the preferential heating. With mechanical alignment, a reduction in power consumption is to be expected, since the plastic preforms must be rotated in a deflection until an index pin engages in the designated notches.

It is also known that neck rings – usually mounted on an intermediate module – are oriented using a camera. With all alignment methods, whether mechanical or sensor-based, the alignment must be maintained until blow molding. Even the slightest mechanical deviations (e.g., due to the timing of the preforms being transferred) lead to misalignment of the neck or opening relative to the container body. In some cases, this can result in a higher reject rate during production.

The present invention therefore aims to provide a container or its components in such a way that the alignment process can be simplified. The same objective is also achieved by the device and the method for manufacturing containers described within the scope of the invention.

A plastic container according to the invention (in particular including a container closure) for holding media, especially foodstuffs, comprises a container part and a container closure arranged on the container part. The container part has a bottom section, a base body extending longitudinally along the plastic container and adjoining this bottom section, and an opening section extending longitudinally along the base body, wherein the base body has a cross-section that deviates from a circular cross-section, and wherein the container closure is arranged or can be arranged on the opening section.

Preferably, this container closure can be attached to the mouth section by a substantially rotation-free movement of the container closure in the longitudinal direction relative to the mouth section.

In another preferred embodiment, the container closure is designed such that it is not intended to be rotated by a user or customer. The force required to align the closure is exerted by a machine, such as a capping machine.

The described embodiment with the impact closure is preferably suitable for the use of so-called "tethered caps".

According to the invention, the mouth section has first ratchet means extending at least section by section in a circumferential direction of the mouth section, and the container closure has second ratchet means extending at least section by section in the circumferential direction of the container closure, wherein the first ratchet means and the second ratchet means are arranged such that the first ratchet means and the second ratchet means interact at least section by section (and preferably interlock at least section by section).

In this design, the container closure is preferably arranged directly or immediately at the opening section of the container part.

Under certain circumstances, it may also be advantageous to use an adapter element, preferably arranged between the mouth section and the container closure. This is particularly beneficial if, for example, previously known plastic preforms or previously known container closures (which themselves do not have ratchet mechanisms) are to be used for the invention.

Another plastic container according to the invention for holding media, in particular foodstuffs, comprises a container part and a container closure arranged (indirectly) on the container part. The container part has a bottom section, a base body extending longitudinally from this bottom section, and an opening section extending longitudinally from the base body, wherein the base body has a cross-section that deviates from a circular cross-section at least in sections, and wherein the container closure is arranged or can be arranged on the opening section.

Furthermore, an adapter element is provided, which is arranged at least partially between the mouth section and the container closure. Preferably, this adapter element is a separate element, which is particularly preferably separable from both the container closure and the container mouth.

According to the invention, the adapter element has at least partially first ratchet means extending in a circumferential direction (and/or a longitudinal direction) of the adapter element.

Furthermore, the mouth section or the container closure has second ratchet means extending at least section by section in a circumferential direction of the mouth section or the container closure, wherein the first ratchet means and the second ratchet means are arranged such that the first ratchet means and the second ratchet means interact at least section by section.

This container closure can be attached either together with the adapter element or the adapter element can be attached to the mouth section by a movement of the container closure or the adapter element in the longitudinal direction relative to the mouth section that is essentially free of notation.

This means that a container with a container closure and an adapter element is provided. The ratchet element(s) can preferably be arranged between the container and the adapter element or between the adapter element and the container closure.

Preferably, the plastic container has first ratchet means extending in a circumferential direction of the mouth section and second ratchet means also extending in the circumferential direction with respect to the longitudinal direction, wherein the first ratchet means and the second ratchet means are arranged such that these first and second ratchet means interact at least sectionally.

It should be noted that the ratchet mechanism preferably extends circumferentially as a whole. The individual teeth of this ratchet mechanism preferably extend longitudinally.

However, it would also be conceivable that ratchet mechanisms are provided only on one element and engagement elements, such as teeth, on the other element, which interact with these ratchet mechanisms.

Ratchet elements are understood to be, in particular, toothed sections extending in a specific direction, especially a circumferential direction with respect to the longitudinal direction, wherein a ratchet action is achieved, in particular, by the interaction of these elements or toothed sections. However, at least one of the two ratchet elements can also consist of single teeth or a few teeth that engage with toothed sections forming the other ratchet element. Preferably, however, both ratchet elements each have several adjacent teeth.

Three possible configurations of the container are proposed here. In a first preferred embodiment, the container closure is arranged directly at the opening section. In this embodiment, the first ratchet elements are arranged at the opening section (and in particular at least at its outer circumference), and the second ratchet elements are arranged at the container closure and thus interact with each other.

In another preferred embodiment, as mentioned above, an adapter element is provided. This adapter element can itself include ratchet elements. These ratchet elements can interact with corresponding ratchet elements of the container closure, but also, if they are arranged particularly on the inner circumference, with corresponding ratchet elements of the container opening.

Preferably, exactly two such ratchet devices are provided, which work together to enable a rotation of an adapter element relative to the mouth or of the container closure relative to the mouth section or of the container closure relative to the adapter element.

Preferably, these ratchet mechanisms interact in such a way that the container closure can be rotated longitudinally relative to the opening section, with the container remaining closed during this rotation. Preferably, therefore, the ratchet mechanisms do not actually close the plastic container.

Preferably, the first ratchet means and the second ratchet means are designed such that a displacement of the first ratchet means relative to the second ratchet means in the longitudinal direction of the plastic container is possible.

It is therefore proposed that the container closure not be a screw cap, but rather, for example, a snap closure, and that the ratchet mechanism nevertheless allow rotation, particularly for the purpose of alignment. It is conceivable that such rotation is only possible in one direction; however, depending on the design of the ratchet mechanism, rotation may also be possible in no direction or in both directions. Furthermore, it is possible that rotation is possible with increased torque.

However, a rotationally fixed arrangement would also be possible; in this case, for example, the closure could be aligned before closing. Preferably, however, as described in detail below, the container is first closed, and then the container closure is aligned by rotation. Particularly preferably, the container closure is rotatable relative to the mouth section by machine.

The media in question are preferably food products, such as sauces or ketchup, but not exclusively. They can also include products such as soaps, oils, or cleaning agents.

The first ratchet devices are particularly preferably arranged on an outer circumference of the mouth section.

In another preferred embodiment, the second ratchet means are arranged on the inner circumference of the container closure.

In another preferred embodiment, the container section is a a blow-molded or stretch blow-molded part. Container closures are particularly preferably injection-molded.

In a further preferred embodiment, at least the first ratchet means or the second ratchet means is designed as a toothed section circumferentially with respect to the longitudinal direction. Particularly preferred is the design of both the first ratchet means and the second ratchet means as toothed sections circumferentially with respect to the longitudinal direction.

In particular, these tooth connections are coordinated with each other so that one tooth connection can engage with the other tooth connection, or the individual teeth of one tooth connection can engage in recesses formed between the teeth of the other tooth connection.

However, it would also be conceivable that only one toothing is provided and the other toothing has fewer or only a few teeth, which are arranged in such a way that they can engage in recesses of the first-mentioned toothing.

As explained in detail below, it would be possible that the gear teeth are designed in such a way that no relative rotation is possible, or that rotation is only possible in one direction.

In a preferred embodiment, at least one and preferably several, preferably all, teeth of one ratchet means engage in recesses formed between the teeth of the other ratchet means.

Preferably, the teeth each have the same number of teeth, so that the individual teeth can interlock.

However, as mentioned above, it is conceivable that one ratchet tool has fewer teeth than the other ratchet tool.

The teeth can be aligned in different directions, so that, as mentioned above, rotation is completely prevented or is only possible in one direction of rotation, or is possible in both directions of rotation, but especially with an increased torque.

Preferably, the ratchet mechanism is designed such that an increased torque is required for rotation. This torque is preferably between 0.3 Nm and 5 Nm (approximately 3 inch-lbs to 50 inch-lbs). This torque has proven particularly suitable for effecting machine rotation and, conversely, preventing unintentional rotation.

In a further preferred embodiment, the first ratchet means and the second ratchet means are designed such that the container closure is rotatable in a stepped manner relative to the container part.

This can be possible either if the container closure is located directly at the container opening, or if an adapter element is provided between the closure and the container opening.

Particularly preferably, the container closure is rotatable in predetermined increments relative to the container opening. These increments are particularly preferably less than 20°, preferably less than 15°, preferably less than 10°, preferably less than 8°, preferably less than 6°, preferably less than 5°, preferably less than 4°, preferably less than 3°, and particularly preferably less than 2°.

Preferably these increments are greater than 0.1°, preferably greater than 0.2°, preferably greater than 0.4°, preferably greater than 0.5°, preferably greater than 0.6°, preferably greater than 0.8° and preferably greater than or equal to 1°.

In a further preferred embodiment, the first ratchet means are arranged on an outer circumference of the opening section. In a further preferred embodiment, the second ratchet means are arranged on an inner circumference of the container closure.

Particularly preferred are the first and second ratchet means arranged in such a way that they interlock when a closure is placed on the container opening.

In a further preferred embodiment, the first and second ratchet means each have insertion ramps at their end sections, which facilitate the insertion of the respective ratchet means into one another.

Conversely, it would also be possible for the first ratchet elements to be arranged on an inner circumference of the opening section and the second ratchet elements on an outer circumference of the container closure. In this case, the container closure (especially a cork-like closure) could be inserted into the opening of the container section.

In a further preferred embodiment, the container closure has at least one and preferably several first fastening means. The first container part has at least one second fastening means, wherein the first fastening means and the second fastening means are designed such that the container closure is held to the first container part, particularly by frictional engagement, through the interaction of the first and second fastening means. Preferably, these fastening means prevent the container closure from being removed from the container part (especially a plastic bottle) in a longitudinal direction.

In this embodiment, it is assumed that no adapter element is provided, but rather that the container closure is arranged directly on the container part.

If an adapter element is provided, this adapter element preferably has fastening means to be held either to the container closure or to the container part, so that the adapter element can be inserted onto the container part or the mouth section, or alternatively onto or into the container closure.

A fastening means is particularly preferably suitable and designed to engage other fastening means in a direction perpendicular to the longitudinal direction.

Preferably, the fastening means, or a part thereof, are designed to be resilient. In particular, the fastening means on the container closure can be resilient so that they yield (and are especially forced radially outwards) when the container closure is joined to the container part, in order to then engage an element of the container part, such as a ring. Preferably, the fastening means on the container part can be a circumferential ring.

Preferably, the first fastening means engage behind the second fastening means. Particularly preferably, the first fastening means are designed as clamp-like fastening means which engage behind a ring forming the second fastening means.

In a further preferred embodiment, the container has a sealing device for sealing the container, wherein this sealing device is preferably arranged at least section by section in the longitudinal direction between the mouth section and the container closure.

This sealing device is particularly preferably an additional element, especially an element that can be removed by a user.

This sealing device could, for example, be a foil that closes the opening of the container part. Alternatively, the sealing device could also be a type of intermediate lid that, when the container is closed and (still) sealed, is positioned between the container closure and the container part.

It would also be conceivable that the adapter element described above could simultaneously serve as a sealing device. Thus, it is possible that the adapter element could be removed from the container opening or closure to bring the container into a ready-to-use state.

In another preferred embodiment, the container closure has a perforation mechanism for perforating the sealing device. This allows, for example, a user to remove or destroy the sealing device.

In a further preferred embodiment, the container closure comprises a retaining section arranged or arrangable on the opening section and a lid section. Particularly preferably, this lid section is movable relative to the retaining section and, in particular, pivotable.

Preferably, the retaining section and the cover section are connected to each other. In particular, the retaining section and the cover section are connected to each other via a connecting web.

Preferably, an opening for discharging the container contents is arranged in the holding section. This opening preferably has a cross-section that is smaller, and preferably significantly smaller, than the opening cross-section of the mouth section of the container part.

Particularly preferably, an adapter element is arranged on the mouth section or on the container closure, and preferably at least the first or the second ratchet means are arranged on this adapter element.

Particularly preferably, the aforementioned cover section is pivotable with respect to a pivot axis relative to the retaining section, which is parallel to The pivot axis runs along the opening surface of the mouth section. This pivot axis can be located above or below one end of the mouth of the container section.

The present binding is further directed to a plastic preform for the production of a container section (in particular the aforementioned container section) by a blow molding process, wherein the plastic preform comprises a preform base body and an outlet section, and wherein at least one fastening means is provided on the outlet section, which is suitable and intended to create a force-fit connection with a container closure. In particular, the outlet section is designed without threads.

According to the invention, a ratchet means, in particular in the form of a toothing, is formed on the opening section, rotating with respect to a longitudinal direction of the plastic deformation, wherein the teeth of this toothing preferably extend section by section and preferably with a uniform cross-section in the longitudinal direction of the plastic preform.

It is therefore proposed that a suitable plastic preform be equipped with the aforementioned toothing or ratchet mechanism. Preferably, a container closure can be attached to this plastic preform and, in particular, pressed onto it.

In particular, the plastic preform is made of PET. Preferably, the ratchet mechanism is arranged on an outer circumference of the mouth section. However, it would also be possible for the ratchet mechanism to exist on both the inner and outer circumferences of the plastic preform and thus be tactilely perceptible from both sides. The plastic preform is, in particular, an injection-molded part.

Preferably, the ratchet mechanism, and in particular the toothing in the longitudinal direction of the plastic preform, is arranged above the fastening element (with the plastic preform in an upright position). The fastening element is preferably a circumferential ring, which can be engaged, in particular, by corresponding fastening elements of a container closure.

The aforementioned plastic preform is preferably designed without threads, i.e., it has neither an external nor an internal thread. This plastic preform, and especially a container manufactured from it, is particularly preferably closable, for example, by a snap closure, i.e., in particular, without turning the container closure.

A snap-on closure is particularly preferred for the container.

The present invention further relates to a container closure for arrangement on a container part, wherein fastening means are provided on the container closure which are suitable and intended to establish a force-fit connection with an opening section of a plastic container or the aforementioned container part or an adapter element.

According to the invention, a ratchet means in the form of teeth is formed on the container closure, which rotates around a longitudinal direction (i.e. around it) of the container closure, wherein the teeth of this toothing preferably extend section by section with a uniform cross-section in a longitudinal direction of the container closure.

The longitudinal direction of the container closure is understood in particular to be a direction which is perpendicular to a lid section of the container closure and/or with respect to which the container closure or a section of the container closure is essentially rotationally symmetrical.

Preferably, the fastening element can be brought into a state interacting with the other fastening element (of the container) by a purely longitudinal movement. The container closure is particularly preferably designed without threads. Preferably, the container closure is placed on the opening of a container. Slight rotations may occur when the ratchet elements are brought together, for example, rotations of 1° or 2°. This also depends on the design of the ratchet elements.

The container closure particularly preferably has a retaining section that can be attached to the opening section of the container part or the adapter element, and a lid section that is preferably pivotable relative to the retaining section, in particular for opening and closing the container closure.

Preferably, the maximum swivel angle of the cover section relative to the holding section is greater than 20°, preferably greater than 30°. preferably greater than 40°, preferably greater than 50°, preferably greater than 60°, preferably greater than 70°, preferably greater than 80°, preferably greater than 90°, preferably greater than 100°, preferably greater than 110°, preferably greater than 130°, preferably greater than 140° and particularly preferably greater than 150°.

Particularly preferred is this maximum swivel angle less than 270°, preferably less than 250°, preferably less than 230°, preferably less than 210° and preferably less than 200°.

Particularly preferably, the container closure has at least one marking which is suitable and intended to detect a rotational position of the container closure, especially optically.

Optical detection is possible, for example, from above and/or from the side. This marking could be, for instance, a marker positioned at a specific angle on the lid section. However, this marking could also be a retaining element, such as one used to open the closure.

A plastic container closure, preferably made of PET, is particularly preferred. An injection-molded container closure is particularly preferred.

The container closure preferably has a cross-section larger than 1.5 cm, preferably larger than 2.0 cm, preferably larger than 2.5 cm.

The container closure particularly preferably has a cross-section that is less than 10 cm, preferably less than 9 cm, preferably less than 8 cm, preferably less than 7 cm and preferably less than 6 cm.

The present invention further relates to an adapter element for arranging a container closure on a container part of a plastic container, wherein the adapter element comprises first fastening means for attaching the adapter element to the container closure and second fastening means for attaching the adapter element to the container part.

According to the invention, the adapter element further comprises first ratchet means which are suitable and intended to cooperate with second ratchet means of the container closure or with second ratchet means of the container part.

In a further preferred embodiment, the adapter element also has a thread which is suitable and intended for screwing the adapter element to a container closure or to a container opening.

Preferably, the adapter element further comprises a fastening means which is suitable and intended to establish a force-fit connection with a container closure or with a container opening by means of a purely longitudinal movement (or a longitudinal movement combined with a very slight rotational movement).

Preferably, one of the fastening means allows the adapter element to be screwed to another element, and the other fastening means allows the adapter element to be attached or inserted into another element in a force-fit manner.

The adapter element is preferably made of plastic. The adapter element is preferably an injection-molded part.

The present invention further relates to a device for manufacturing plastic containers, and in particular plastic containers of the type described above. This device comprises a heating unit for heating plastic preforms, as well as a forming unit which is suitable and intended for forming the heated plastic preforms into plastic containers.

Furthermore, the device has a filling device arranged in a transport direction (of the plastic containers) after the forming device, which is suitable and intended to fill the plastic containers produced by the forming device with a flowable medium (and in particular with a viscous liquid).

Furthermore, the device has a closing device which is suitable and intended for closing the plastic containers filled with the flowable medium with a container closure, wherein this closing device is suitable and intended for attaching the container closures to the plastic containers or their container parts essentially without rotation of the container closures and/or without screws.

According to the invention, the device has an alignment device which is suitable and The purpose is to align the container closures with respect to the containers with regard to their rotational position, with the alignment device preferably being arranged in a transport direction of the plastic containers after the closing device.

This alignment device is particularly preferably designed to align the container closures in such a way that they are rotated relative to the containers or the aforementioned container parts.

However, alignment before closing would also be conceivable, especially if no further rotation is possible afterwards due to the ratchet mechanism.

Attachment essentially without rotation means that the fastening process is not carried out by a rotational process such as screwing. Specifically, the attachment should be achieved essentially without any twisting along the longitudinal direction of the container or its opening section. Minor rotations may nevertheless occur due to the alignment of the ratchet elements relative to each other.

The term "essentially without rotation" means that, in any case, no rotations are performed with an angle of rotation greater than 30°, preferably with an angle of rotation greater than 25°, preferably with an angle of rotation greater than 20°, and particularly preferably with an angle of rotation greater than 10°, and particularly preferably with an angle of rotation greater than 5°, and particularly preferably with an angle of rotation greater than 3°, and particularly preferably with an angle of rotation greater than 2°. Preferably, no rotations are performed at all.

The forming device is preferably a blow molding machine, and in particular a stretch blow molding machine. A rotary forming device is especially preferred. This means that the forming device preferably has a rotatable carrier on which a plurality of forming stations are arranged. The individual forming stations preferably each have a rod-like body or a stretching bar that can be inserted into the containers to stretch them longitudinally.

The device preferably has several transport devices for transporting the containers. Preferably, at least one and preferably several of these transport devices are transport stars or transport wheels.

Particularly preferably, the alignment device includes a fixing device which secures the containers or container parts in a rotationally fixed manner and a rotating device which rotates the container closures for the purpose of alignment.

In a preferred embodiment, the forming device is suitable and intended for producing plastic containers with a cross-section that deviates from a circular cross-section. This is made possible in particular by appropriate blow molding.

The heating device is particularly preferably suitable and designed to heat the plastic preforms unevenly in their circumferential direction.

In a further preferred embodiment, the device has a rotation position detection device which is suitable and intended to detect a rotation position of the container closure relative to a container or the container part on which this container closure is or is to be arranged.

This rotation position detection device is particularly preferably arranged in the transport direction of the containers between the closing device and the alignment device.

Particularly preferably, the rotation position detection device includes an image acquisition device which is suitable and intended to capture an image of the container closure and/or the container on which the container closure is arranged.

The rotary position detection device preferably also includes a lighting device to illuminate the container closure and/or the container.

The rotation position detection device preferably includes an evaluation unit which is suitable and intended for evaluating an image captured by the image acquisition device in order to infer the rotation position of the container closure. The image is preferably captured using a reflected light method.

In a further preferred embodiment, the device has a control device which is suitable and intended to control the alignment device taking into account a position detection device. to control the determined measured value and, in particular, a measured value characteristic of the rotational position of the container closure.

Preferably, the rotation position detection device is suitable and intended to detect the rotation position of each individual container closure.

In a further preferred embodiment, the device includes a sealing device which is suitable and intended for providing the filled container with a sealing element. This sealing device is particularly preferably arranged between the filling device and the capping device. However, the capping device itself can also serve as the sealing device.

Preferably, the alignment device is integrated into the capping device. This makes it possible to align the container closures directly after capping.

However, it would also be conceivable to provide a mounting unit suitable and designed for attaching an adapter element to the container or its opening. Preferably, this adapter element can be simply pushed onto the container opening. Subsequently, as explained in more detail below, a container closure can be screwed onto this adapter element.

Alternatively, a device could be provided that attaches an adapter element to the container closure or inserts it into the closure. The container closure with the adapter element could then be screwed onto the container opening.

In a further advantageous embodiment, the device has a manufacturing unit for producing the plastic preforms, preferably this manufacturing unit being designed as an injection molding machine.

Preferably, the device includes a transport unit that feeds the plastic preforms to the heating unit. Particularly preferably, this transport unit includes a sorting unit that is suitable and designed to sort the plastic preforms according to their orientation. This is particularly preferably a so-called roller sorter, which has two rotatable rollers between which the plastic preforms are guided or can be guided.

In a further preferred embodiment, the device has an equipment device which is suitable and intended to provide the manufactured plastic preforms with an equipment in the form of a label and/or a print, wherein this equipment device is preferably arranged between the forming device and the filling device.

The present invention further relates to a method for manufacturing plastic containers, wherein plastic preforms are heated by means of a heating device and these heated plastic preforms are formed into plastic containers using a forming device.

In this process, these plastic containers, which have been formed in this way, are filled with a flowable medium using a filling device arranged after the forming device, and subsequently the plastic containers filled with the flowable medium are closed with a container closure using a closing device.

This sealing device preferably attaches the container closures to the containers essentially without rotating the closures relative to the containers. These container closures are particularly preferably pressed onto the container openings in the longitudinal direction of the plastic containers.

According to the invention, an alignment device, which is arranged in the transport direction of the plastic containers after the closing device, aligns the container closures relative to the containers with respect to their rotational position, preferably rotating the individual container closures by rotation angles determined individually for each plastic container and/or each container closure.

As mentioned, the container closures are preferably pressed onto the container parts by the closing device.

In another preferred method, the heating device heats the plastic preforms uniformly or, more preferably, non-uniformly in their circumferential direction. For example, preferential heating of the plastic preforms can also take place, and these plastic preforms can then be introduced into the forming device with a defined rotational position. This would make it possible to heat those areas of the plastic preforms They are heated more intensely, which then expand more during the forming process.

In another preferred method, the plastic preforms and/or the manufactured plastic containers are transported in a series. Preferably, the plastic containers are transported at least temporarily along a circular transport path.

Plastic preforms or plastic containers are preferably transported in a single row.

In another preferred method, a rotational position of a container closure partially attached to the container (or, more generally, the rotational positions of the container closures attached to the container parts) is detected.

The alignment is particularly preferably carried out taking this rotational position into account.

Preferably, a relative rotational position between a container closure and the plastic container or container part is detected. It is also possible that a rotational position of the container part itself is detected. However, it would also be possible that the rotational position of the container part is fixed or predetermined.

In another preferred method, the plastic preforms are formed into plastic containers such that the plastic containers have a base body with a cross-section that deviates from a circular cross-section. For example, the containers can have a rectangular or an elliptical cross-section.

In a further preferred method, the plastic preforms are fed to the forming device with any rotational orientation of their opening sections relative to their longitudinal direction. This means that the container openings, in particular, can have any rotational orientation relative to their longitudinal direction. However, it would also be possible to feed the plastic preforms taking into account a preferential heating process, i.e., taking into account a temperature profile applied circumferentially to the plastic preforms.

In another preferred method, the container closures are attached to the containers in any desired rotational position. Preferably, the container closures are applied in any desired rotational position; however, it would also be conceivable here to perform a pre-alignment that subsequently requires less alignment.

Therefore, within the scope of the invention, it is proposed that the plastic preforms and the container closures be designed with a special contour and, in particular, a toothed design that blocks rotation after closure or allows it only in one direction. For example, the plastic preforms can have vertical elements in their neck area, which, as described in detail below, can be positioned centrally, to the left, or to the right.

The container closure(s) preferably have vertical elements arranged around the perimeter, which may also be positioned centrally, to the left, or to the right. These preferably form the counterpart to the container opening or the corresponding vertical elements.

Depending on the interlocking or orientation of these elements (referred to above as teeth) (straight on the left or on the right), the direction of rotation can be blocked in certain directions.

Particularly preferably, the container closure has these vertical elements (relative to a plastic preform oriented in the vertical direction) or teeth on the inside and these interlock as mentioned above, preferably with the interlocking of the plastic preforms or the plastic containers produced therefrom.

Depending on the design, the container closure or its position can be adjusted by rotating it in a specific direction. Different increments result from the number of teeth or elements. For example, with 360 elements, an increment of ±1° is possible. With 180 teeth or elements, a rotation of ±2° is possible. With 120 elements, a rotation of ±3° is possible, and with 72 elements, for example, a rotation of ±5°.

As mentioned above, the preferred type of container closure is a so-called snap-on closure, similar to those commonly found on oil bottles. This means that the closure is achieved by the rim of the closure snapping against, for example, a support ring of the container or container part. In this state, the closure is then also sealed against the container part.

It is still possible that the container closures are already pre-set in the sealer. In this way, a Alignment can be performed at a specific, shallow angle (and is therefore very quick). Additionally, it is also possible to close the containers using neck handling.

Preferably, after the containers have been manufactured or after the empty bottle has been blown, it is guided by a clamp to the clamp transfer of the capper and then sealed.

Preferably, the clamp maintains an orientation or rotational position of the container until the clamp transfer.

Alternatively, sealing could be performed during base handling. In this case, the containers could again be aligned towards the sealing device. This could be done visually or using "slaves." A "slave" is a transport device that secures, orients, and moves the container.

Another approach would involve using commercially available plastic preforms with an external thread. An adapter could then be attached to these, preferably with a thread on the inside and the aforementioned vertical elements or ratchet mechanism on the outside.

It is possible that the adapter element is also integrated into the container closure.

In addition, it is possible that the adapter element is applied to the container by a pre-sealer and the second sealer then applies the container closure.

Alternatively, a two-part version would also be conceivable. In this two-part version, an intermediate piece, serving as an adapter element, could be used between the plastic preforms and the container closures. In this case, the container closure is preferably designed in two parts.

The ratchet mechanisms mentioned above allow for over-tightening with a certain force during closing, in order to change the position of the container closure on the container.

The invention offers the advantage that no complex path orientations are necessary in the forming device or the stretch blow molding machine. This results in several advantages. For example, it makes it possible to simplify the forming device, such as a blow molding machine and especially an oven, since no detection and alignment are required.

This also opens up alternatives to initially oriented combinations of base material preforms and containers. This allows for simple application. For example, a customer can customize or select their preferred closure position.

For example, the containers can be suitable for right-handed and left-handed people.

Furthermore, no special plastic preforms are necessary, as no marking or notch is required for orientation. Additionally, an adapter or the aforementioned adapter element can be manufactured for different threads.

It is therefore possible to use standard plastic preforms from the market and thus achieve greater flexibility.

Further advantages and embodiments can be seen from the attached drawings:

• 1 eine perspektivische Darstellung eines Behältnisverschlusses;
• 2 eine untere Ansicht des Behältnisverschlusses aus 1;
• 3 eine Schnittdarstellung des Behältnisverschlusses aus 1;
• 4 eine weitere horizontale Schnittdarstellung, des in 3 gezeigten Behältnisverschlusses;
• 5 eine perspektivische Darstellung eines Abschnitts eines Behältnisses oder Kunststoffvorformlings;
• 6 eine Darstellung eines erfindungsgemäßen Behältnisses;
• 7 eine Ansicht von unten auf ein erfindungsgemäßes Behältnis;
• 8 eine Darstellung eines an dem Behältnis angeordneten Behältnisverschlusses;
• 9 eine Ansicht entlang der Längsrichtung auf einen an dem Behältnis angeordneten Behältnisverschluss;
• 10 eine naturalistische Darstellung eines an einer Mündung angeordneten Behältnisverschlusses;
• 11 eine Darstellung eines weiteren erfindungsgemäßen Behältnisverschlusses;
• 12 eine Ansicht von unten auf den in 11 gezeigten Behältnisverschluss;
• 13 eine Schnittdarstellung des in 12 gezeigten Behältnisverschlusses;
• 14 eine Draufsicht auf den in 12 gezeigten Behältnisverschluss;
• 15 eine Darstellung einer weiteren Behältnismündung gemäß der Erfindung;
• 16 eine Schnittdarstellung der in 15 gezeigten Behältnismündung;
• 17 eine Unteransicht der in 15 gezeigten Behältnismündung;
• 18 eine Darstellung eines an einer Behältnismündung angeordneten Behältnisverschlusses;
• 19 eine Darstellung entlang der Längsrichtung von dem Gegenstand von 18;
• 20 eine naturalistische Darstellung eines an einer Behältnis angeordneten Behältnisverschlusses;
• 21 ein erfindungsgemäßes Adapterelement;
• 22 eine Schnittdarstellung des in 21 gezeigten Adapterelements;
• 23 einen Behältnisverschluss, der mit dem in 22 gezeigten Adapterelement zusammenwirken kann;
• 24 eine Schnittdarstellung eines Behältnisverschlusses;
• 25 eine Darstellung eines an einen Behältnis angeordneten Behältnisverschlusses sowie eines Adapterelements;
• 26 eine Ansicht entlang der Längsrichtung auf die in 25 gezeigte Anordnung;
• 27 - 29 drei Darstellungen zu Verzahnungen der Ratschenelemente;
• 30-33 vier Darstellungen eines Behältnisverschlusses;
• 34 -37 fünf Darstellungen eines weiteren Ausführungsbeispiels für einen Mündungsabschnitt eines Kunststoffbehältnisses;
• 38-39 zwei Darstellungen von Behältnisverschlüssen;
• 40-43 vier Darstellungen eines erfindungsgemäßen Adapterelements;
• 44 eine Darstellung einer erfindungsgemäßen Vorrichtung zum Herstellen von Kunststoffbehältnissen.

It shows:

• 1 a perspective view of a container closure;
• 2 a lower view of the container closure 1 ;
• 3 a cross-sectional view of the container closure made of 1 ;
• 4 another horizontal sectional view, of the in 3 shown container closure;
• 5 a perspective view of a section of a container or plastic preform;
• 6 a representation of a container according to the invention;
• 7 a view from below of a container according to the invention;
• 8 a representation of a container closure arranged on the container;
• 9 a view along the longitudinal direction of a container closure arranged on the container;
• 10 a naturalistic depiction of a container closure arranged at an opening;
• 11 a representation of another container closure according to the invention;
• 12 a view from below of the in 11 container closure shown;
• 13 a sectional view of the in 12 shown container closure;
• 14 a top view of the in 12 container closure shown;
• 15 a representation of a further container opening according to the invention;
• 16 a sectional view of the in 15 shown container opening;
• 17 a bottom view of the in 15 shown container opening;
• 18 a representation of a container closure arranged at a container opening;
• 19 a representation along the longitudinal direction of the object of 18 ;
• 20 a naturalistic depiction of a container closure arranged on a container;
• 21 an adapter element according to the invention;
• 22 a sectional view of the in 21 shown adapter element;
• 23 a container closure that is connected to the one in 22 can interact with the adapter element shown;
• 24 a cross-sectional view of a container closure;
• 25 a representation of a container closure attached to a container and an adapter element;
• 26 a view along the longitudinal direction of the in 25 arrangement shown;
• 27 - 29 three illustrations of the gearing of the ratchet elements;
• 30-33 four illustrations of a container closure;
• 34-37 five illustrations of a further embodiment for an outlet section of a plastic container;
• 38-39 two illustrations of container closures;
• 40-43 four illustrations of an adapter element according to the invention;
• 44 A representation of a device according to the invention for manufacturing plastic containers.

1 Figure 1 shows a perspective view of a container closure according to the invention. This container closure has a ratchet mechanism 62 on its inner circumference. This ratchet mechanism has a plurality of teeth 62a spaced equidistant from one another. These teeth have insertion ramps 62b at their lower end, which facilitate engagement with preferably complementary teeth of the container or an adapter element.

Reference numeral 63 designates an opening closure device suitable for engaging with or encompassing a complementary opening of a container and securely closing it. This opening closure device need not necessarily be located in the center but may also be located laterally.

Reference numeral 66 designates a fastening element used to attach the container closure to a container. For this purpose, this fastening element 66 can, in particular, engage behind a ring arranged at the container opening.

Preferably, this fastening element is flexible relative to the container closure and/or has an insertion chamfer so that it can engage the corresponding ring behind the container closure when the closure is pressed down. Preferably, a plurality of such fastening elements are arranged around the circumference of the container closure. Gaps 63 are formed between these fastening elements 66 to allow the individual fastening elements 66 to bend relative to the area of the container closure in which the toothing 66 is located. Reference numeral 65 denotes a sealing edge.

2 shows a bottom view along the longitudinal direction of the in 1 shown container closure 6. Here again, one can see the ratchet mechanism 62 as well as the fastening element 66.

3 Figure 6 shows a cross-sectional view of the container closure 6. It can be seen that the container closure is designed in two parts and comprises a retaining section 72 and a lid section 74, which is pivotable relative to the retaining section 72. The fastening means 66 and the ratchet mechanism 62 are also visible. Reference numeral 75 indicates a channel formed in the lid section 74, which engages with the aforementioned mechanism 63 when the container is closed.

4 Figure 62 shows a representation along the longitudinal direction of the ratchet means 62. It can be seen that these are uniformly designed and are preferably arranged on both the inner and outer circumference of the container closure.

5 This shows a representation or partial representation of a plastic container or plastic preform. The actual container is shown below. Thus, it shows 5 the mouth section of such a plastic container.

This mouth section 26 has first ratchet elements 32. These ratchet elements in turn have individual teeth 2a, which also have visibly inclined surfaces 32b at their ends, enabling them to be joined with the aforementioned ratchet element of the container closure.

Reference numeral 36 designates a fastening element in the form of a ring, under which the aforementioned fastening elements 66 of the container closure can engage. Reference numeral 36 designates an optional support ring of the plastic preform, which serves in particular for handling.

6 Figure 1 shows a sectional view of the container. Container section 2, which connects to the opening section 26, is also shown section by section. The ratchet mechanism 32, the fastening element 36, and the support ring 35 are again visible.

7 Figure 1 shows a longitudinal view of the plastic container. Visible here again are the support ring 35, the fastening element 36, and the ratchet element 32, which projects outwards on the outer circumference.

8 Figure 1 shows a cross-sectional view of a container closure arranged on a mouth section. It can be seen that the container closure has a retaining section 72 and a lid section 74. Reference numerals 32 and 62 denote the interlocking ratchet elements. The fastening element 66 engages behind the ring 36, thus securing the container closure 6 to the mouth.

Fig. 9 shows a view along the longitudinal direction. It can be seen that the ratchet elements 32 and 62 interlock. In this way, depending on the choice of ratchet elements or their geometric shape, it can be achieved that the container closure is not rotatable relative to the opening, or is rotatable in one direction, or – especially under increased torque – is rotatable in both directions.

10 Figure 1 shows another illustration of a corresponding container closure arranged at the container opening 26. The two-part design of the container closure, comprising the retaining section 72 and the lid section 74, is particularly evident here. The lid section 74 is in 10 The container closure 6 can be snapped onto the container opening 26 in the longitudinal direction.

11 Figure 1 shows a further embodiment of a container closure according to the invention. The essential difference to the container closures of the preceding figures is the length of the ratchet means 62. The container closure is therefore suitable for engaging in the support ring of the plastic container. Furthermore, reference is made to the container closure of the above. 1 - 4 referred.

12 The figure also shows a view along the longitudinal direction, where the ratchet means 62 and the fastening means 66 are again visible.

Even in the sectional view of the 13 Fastening elements 66 are again provided, which, as mentioned, serve to engage behind the support ring of the container opening. Accordingly, recesses 73 are also provided between fastening elements 72, which facilitate bending of the fastening elements 72.

14 This again shows the design of the ratchet mechanism 62.

15 Figure 1 shows a representation of a corresponding container opening, where the first ratchet elements are also longer. In addition, only one carrying ring 35 is provided, and not the additional ring as in the preceding figures.

Also 16 This illustrates the connection; here too, only the support ring is provided.

At the in 17 The illustration shows a ratchet mechanism 62, as well as the underlying support ring 35.

18 The figure shows a cross-sectional view, revealing that the support ring 35 is engaged from behind. The interlocking of the ratchet elements 62 and 32 is also visible.

19 illustrates the interaction of the ratchet mechanisms in a view along the longitudinal direction.

20 shows another naturalistic depiction of a container closure arranged at the mouth of a vessel.

21 Figure 1 shows an adapter element 106 according to the invention. This element serves here to be attached to an existing plastic preform (or a container). Reference numerals 162a denote the individual teeth of the ratchet mechanism, and reference numerals 162b denote the respective end sections.

22 This again shows a sectional view, in which the thread 110 is shown again, as well as the fastening elements 166.

23 shows a container closure that is compatible with the adapter element made of 21 interacts. This container closure in turn has an internal thread 112, which connects with the internal thread 110 of the adapter element or adapter ring 106.

This means that, on the one hand, the container closure is made of 23 in a conventional manner, the adapter element 106 can be screwed onto the adapter element 106, but the adapter element 106 can still be rotated relative to a (not shown) container opening by means of the ratchet mechanism.

Preferably, the adapter element is designed as an adapter ring. This adapter ring preferably has an opening cross-section that is larger than the opening cross-section of the container mouth. Preferably, this cross-section is between 1.01 and 1.4 times larger.

24 shows a cross-sectional view of a container closure screwed onto the adapter element.

25 Figure 1 shows an overall view of a container opening or opening section 26, an element 106, and a (conventional) container closure 120. It can be seen that the adapter element 106 is positioned radially between the container opening 26 and the container closure 106. This allows the adapter element 106 to be pressed onto a plastic container that also has a ratchet mechanism. A container closure can then be screwed onto this adapter element in the conventional manner.

26 Figure 1 shows a cross-sectional view along the longitudinal direction L. The conventional closure 120, the muzzle section 26, and the adapter element 106 are again visible. As mentioned, the ratchet mechanism with the first and second ratchet elements is located between the muzzle section 26 and the adapter element 106.

The 27-29 show different configurations of first and second ratchet devices 32 and 62. In the case of the 27 As shown in the illustration, the container closure can be rotated counterclockwise relative to the container opening 26. This is achieved through the corresponding angled design of the individual teeth. Rotation in the opposite direction is prevented.

At the in 28 In the situation shown, rotation between the mouth section 26 and the container closure is not possible (or only with great effort), as this is prevented by the design of the individual teeth.

At the in 29 In the situation shown, only a clockwise rotation of the container closure relative to the opening section 26 is possible.

However, it would also be possible to design the individual teeth or ratchet means in such a way that a relative rotation between the container closure 6 and the container opening or the opening section 26 is possible in both directions of rotation.

The 30-33 Figure 1 shows four further illustrations of a container closure according to the invention. In particular, the lid section 74 is also shown, which is arranged on the retaining section 72 by means of a connecting element or connecting web 79. Reference numeral 77 indicates a corresponding attachment of the lid section 74 to the retaining section 72.

In 32 The ratchet devices 62 and the fastening devices 66 are also recognizable.

Figure 33 shows the container closure in an open state.

The 34-37 The illustrations show corresponding representations of the mouth section 26 as well as a representation of a container closure on this mouth section. In the 34a The enlarged illustration shows that the ring 36, or the fastening element, has an inclined surface 36a on its upper side. This chamfer 36a causes the fastening elements of the container closure to be first pushed radially outwards when the container closure is pressed on, and then to engage under the ring 36. Accordingly, the fastening elements on the container closure can also have six corresponding inclined surfaces 66a, as shown in 35 shown.

The 36 and 37 Two further illustrations of the estuary section are shown.

38 Another illustration of a container closure is shown, although here the ratchet means 62 have a greater length in the longitudinal direction.

39 Figure 1 shows an illustration in which an adapter element 106 is screwed onto a conventionally shaped container opening or its external thread 110. The [unclear text] can then be attached to this adapter element 106. 38 The container closure shown can be attached and, in particular, snapped on six times.

The 40-43 Four further illustrations of an adapter element according to the invention are shown. 40 It can be seen that the ratchet mechanisms do not need to be continuous in the circumferential direction. 41 also shows the opening 190 of the adapter element and a surrounding rim 191.

44 Figure 1 shows a device 200 for manufacturing plastic containers, and in particular plastic containers filled with flowable media. This device 200 includes a manufacturing unit 201 for producing plastic preforms 230. After their manufacture, these plastic preforms 230 are transported to a heating unit.

Reference numeral 230 designates a singulation device such as a single-stroke star conveyor, which singulates the plastic preforms conveyed in a series and transfers them to a heating device 202.

This heating device preferably includes a (not shown) transport device that conveys the plastic preforms past, in particular, stationary heating devices. The heating device is preferably designed as an infrared oven, but the use of a microwave oven would also be conceivable.

In addition, a rotating device is provided which rotates the plastic preforms about their longitudinal axes during heating. Furthermore, the heating device can advantageously be designed such that it subjects the plastic preforms 230 to a temperature profile that changes in their circumferential direction.

This heating device 202 is connected to a forming device 204, which forms and, in particular, blows the heated plastic preforms into plastic containers.

By means of two transport devices 220, the plastic containers produced in this way are transferred to an equipment device 205, here a labeling device, which provides each of the plastic containers with an equipment, here a label.

Two further transport units 220 are connected to these equipment units, which transport the plastic containers to a filling unit 206. In the transport unit 206, the containers are filled with a product, for example, mustard or ketchup.

The filling device 206 is connected to a sealing device 208, which provides each of the plastic containers with a container closure.

This sealing device is preferably designed to press container closures, and in particular container closures of the type described above, onto the opening sections of the individual plastic containers or their container parts. It would be possible for the sealing device to have a plurality of sealing elements arranged on a movable and, in particular, rotatable carrier.

Reference numeral 210 designates a rotation position detection device which detects a rotation position of the container closures arranged on the plastic containers, in particular a rotation position relative to a rotation position of the container parts.

Reference numeral 212 designates an alignment unit that aligns the container closures with respect to their rotational positions. This alignment can be performed to a target rotational position.

Preferably, this target rotation position should be selectable or adjustable by a user.

It is pointed out that all features described with reference to the method are also disclosed for the apparatus, which in particular means that the apparatus has facilities suitable and intended for carrying out the respective methods. Furthermore, features described with reference to the apparatus are also applicable to the method(s). This means that the methods under The use of the appropriate device features will be carried out.

The applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided they are novel individually or in combination compared to the prior art. It is further noted that the individual figures also describe features which may be advantageous on their own. A person skilled in the art will immediately recognize that a particular feature described in a figure may be advantageous even without incorporating other features from that figure. Furthermore, a person skilled in the art will recognize that advantages may also arise from a combination of several features shown in individual or different figures.

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• EP 2 414 252 A1 [0003]
• WO 9 503 228A1 [0004]

Claims (29)

A plastic container (1) for holding media, in particular foodstuffs, comprising a container part (2) and a container closure (6) arranged on the container part (2), wherein the container part (2) has a bottom section, a base body (24) adjoining and extending in the longitudinal direction (L) of the plastic container (1), and an opening section (26) adjoining the base body (24) in the longitudinal direction (L), wherein the base body (24) has a cross-section deviating from a circular cross-section, and wherein the container closure (6) is arranged or can be arranged on the opening section (26), wherein this container closure (6) can be attached to the opening section (26) by a substantially rotation-free movement of the container closure (6) in the longitudinal direction (L) relative to the opening section (26), characterized in that the opening section (26) has first ratchet means (32) extending at least section by section in a circumferential direction of the mouth section (26) and the container closure (6) has second ratchet means (62) extending at least section by section in the circumferential direction of the container closure (6), wherein the first ratchet means (32) and the second ratchet means (62) are arranged such that the first ratchet means (32) and the second ratchet means (62) interact at least section by section. A plastic container (1) for holding media, in particular foodstuffs, comprising a container part (2) and a container closure (6) arranged on the container part (2), wherein the container part (2) has a bottom section, a base body (24) adjoining this bottom section in a longitudinal direction of the plastic container (1) and extending in the longitudinal direction (L), and an opening section (26) adjoining the base body (24) in the longitudinal direction (L), wherein the base body (24) has a cross-section deviating from a circular cross-section, and wherein the container closure (6) is arranged or can be arranged on the opening section (26), and with an adapter element (106) which is arranged at least section by section between the opening section (26) and the container closure (6), characterized in that the adapter element (106) extends at least section by section in a circumferential direction of the adapter element (106). ratchet means (162) and the mouth section (26) or the container closure (6) has second ratchet means (32, 62) extending at least section by section in a circumferential direction of the mouth section (26) or the container closure (6), wherein the first ratchet means (162) and the second ratchet means (32, 62) are arranged such that the first ratchet means (162) and the second ratchet means (32, 62) interact at least section by section. plastic container after Claim 1 or 2 , characterized in that the ratchet means cooperate in such a way that the container closure (6) is rotatable with respect to the longitudinal direction (L) relative to the mouth section (26), wherein the container (1) remains closed by the container closure during this rotation. Container (1) according Claim 1 or 2 , characterized in that at least the first ratchet means (32, 162) or the second ratchet means (32, 62) is designed as a toothing circumferentially in a circumferential direction with respect to the longitudinal direction (L), wherein preferably both the first ratchet means (32, 162) and the second ratchet means (32, 62) are designed as a toothing circumferentially in a circumferential direction with respect to the longitudinal direction. Container according to the preceding claim, characterized in that at least one and preferably several and particularly preferably all teeth (32a, 62a, 162a) of one ratchet means (32, 62, 162) engage in recesses (62b, 32b, 162b) formed between the teeth of the other ratchet means (62, 32, 162). Plastic container (1) according to at least one of the preceding claims, characterized in that the first ratchet means (32, 162) and the second ratchet means (62, 32) are designed such that the container closure (6) is rotatable in a stepped manner relative to the container part (2). Plastic container (1) according to at least one of the preceding claims, characterized in that the first ratchet means (32) are arranged on an outer circumference of the opening section (26) or the adapter element (102) and the second ratchet means are arranged on an inner circumference of the container closure (26) or the adapter element (102). Plastic container (1) according to at least one of the preceding claims, characterized in that the container closure (6) has at least one first and preferably first fastening means (66) and the first container part has at least one second fastening means (36), wherein the first fastening means (66) and the second fastening means (36) are designed such that the container closure is held in a force-fit manner on the first container part by an interaction of the first and second fastening means. Plastic container according to the preceding claim, characterized in that a fastening means (66) is suitable and intended to engage behind the other fastening means (36, 35) in a direction perpendicular to the longitudinal direction (L). Container (1) according to at least one of the preceding claims, characterized in that the container (1) has a sealing device for sealing the container, wherein this sealing device is arranged at least section by section in the longitudinal direction between the mouth section (26) and the container closure (6). Container (1) according to at least one of the preceding claims, characterized in that the container closure (6) has a retaining section (72) arranged on the opening section (26) or the adapter element and a lid section (74) which is preferably pivotable relative to the retaining section (72). Container (1) according to at least one of the preceding claims, characterized in that an adapter element is arranged on the opening section (26) or on the container closure (6) and the ratchet means are arranged on this adapter element. Plastic preform for the production of a plastic container (2) by a blow molding process, wherein the plastic preform (80) has a preform base body and an outlet section (26), wherein at least one fastening means is provided on the outlet section (26) which is suitable and intended to produce a particularly force-fit connection with a container closure (6), characterized in that a ratchet means (32) is formed on the outlet section (26) in the form of a toothing, which is circumferential with respect to a longitudinal direction (L) of the plastic preform, wherein preferably the teeth (32a) of this toothing (32) extend section by section with a uniform cross-section in the longitudinal direction (L). Plastic preform according to at least one of the preceding claims, characterized in that the plastic preform is designed without threads. Container closure (6) for arrangement on a container part (2) wherein fastening means (62) are provided on the container closure (6) which are suitable and intended to establish a force-fit connection with an opening section (26) of a plastic container or its container part (26) or an adapter element, characterized in that a ratchet means (62) in the form of a toothing is formed on the container closure with respect to a longitudinal direction (L) of the container closure (6), wherein preferably the teeth (62a) of this toothing extend section by section and with at least section by a uniform cross-section in the longitudinal direction (L). Container closure (6) according to the preceding claim, characterized in that the container closure (6) has a retaining section (72) which can be attached to the opening section (26) of the container part (2) or the adapter element, and a lid section (74) which is preferably pivotable relative to the retaining section (72), in particular for opening and closing the container closure (6). Container closure according to at least one of the preceding claims, characterized in that the container closure has at least one marking which is suitable and intended to detect a rotational position of the container closure, in particular optically. Adapter element (106) for arranging a container closure (6) on a container part (2) of a plastic container (1), wherein the adapter element (106) has first fastening means (110) for attaching the adapter element (106) to the container closure (6) and second fastening means (166) for attaching the adapter element to the container part (2), characterized in that the adapter element (106) further comprises first ratchet means (162) which are suitable and intended to cooperate with second ratchet means of the container closure (6) or with second ratchet means of the container part (2). Device (200) for manufacturing plastic containers, comprising a heating device (202) for heating plastic preforms, a forming device (204) which forms the heated plastic preforms into plastic containers (1), and a filling device (206) arranged downstream of the forming device (204) which is suitable for filling the plastic containers produced by the forming device (204) with a flowable liquid. to fill the medium and with a closing device (208) which is suitable and intended for closing the containers filled with the flowable medium with a container closure (6), wherein this closing device (208) is suitable and intended for attaching the container closures to the containers essentially without rotating the container closures relative to the containers, characterized in that the device has an alignment device (212) which is suitable and intended for aligning the container closures relative to the containers with respect to their rotational position, wherein preferably the alignment device is arranged in a transport direction of the containers after the closing device. Device (200) according to the preceding claim, characterized in that the forming device (204) is suitable and intended for producing plastic containers with a cross-section that deviates from a circular cross-section. Device (200) according to at least one of the preceding claims, characterized in that the device (200) has a rotation position detection device (210) which is suitable and intended to detect a rotation position of the container closure (6) relative to a container on which this container closure (6) is arranged, wherein preferably this rotation position detection device (210) is arranged in the transport direction of the containers between the closing device and the alignment device (212). Device according to the preceding claim, characterized in that this rotation position detection device (210) has an image acquisition device which is suitable and intended to capture at least one image of a container closure (6) and/or this rotation position detection device (210) is arranged in a stationary manner. Device (200) according to at least one of the preceding claims, characterized in that the device (200) has a sealing device which is suitable and intended to provide the filled container with a sealing element, wherein preferably this sealing device is arranged between the filling device and the closing device. Device according to at least one of the preceding claims, characterized in that the device has a manufacturing device (201) for producing the plastic preforms, wherein this manufacturing device (201) is preferably designed as an injection molding machine. Device according to at least one of the preceding claims, characterized in that the device (200) has an equipment device (205) which is suitable and intended to provide the manufactured plastic preforms with an equipment in the form of a label or a print, wherein preferably this equipment device (205) is arranged between the forming device (204) and the filling device (206). A method for manufacturing plastic containers, wherein plastic preforms are heated with a heating device (202), and these heated plastic preforms are formed into plastic containers (1) with a forming device (204), and these plastic containers (1) are filled with a flowable medium with a filling device (206) arranged downstream of the forming device (204), and subsequently the plastic containers filled with the flowable medium are closed with a container closure (6) by means of a closing device (208), wherein this closing device (208) attaches the container closures to the containers substantially without rotating the container closures relative to the containers, characterized in that an alignment device (210), which is arranged downstream of the closing device (208) in a transport direction of the plastic containers, aligns the container closures relative to the containers with respect to their rotational position. Method according to the preceding claim, characterized in that a rotational position of a container closure (6) placed on the container part (2) is detected and preferably the alignment is carried out taking this rotational position into account. Method according to at least one of the preceding claims, characterized in that the plastic preforms are formed into plastic containers such that the plastic containers have a base body with a cross-section that deviates from a circular cross-section. Method according to at least one of the preceding claims, characterized in that the plastic preforms are fed to the forming device with any rotational positions with respect to their longitudinal direction.