BR112013019938B1 - PLASTIC CONTAINER WITH A VERTICAL SPOUT - Google Patents

Abstract

plastic container with a pouring spout a plastic container (1) is described here having a pouring spout (10) which can be mounted on a container neck (2) and which has one or more pouring openings (11). an inner wall (4) of the container neck (2) has at least one pin (7) which protrudes beyond the inner wall (4) and is formed by a blow molding process. the blow molding process can be an extrusion blow molding process or an elasticity blow molding process. the pouring spout (10) has a body (12) which can be connected to the neck of the container (2) and is formed to correspond to a circumferential contour of the neck of the container (2). a corresponding number of receptacles (15) for the (7) is formed in an outer wall (14) of the body (12) whose outer wall (14) faces the inner wall (4) which is provided with at least a pin (7).

Description

PLASTIC CONTAINER WITH A VERTICAL NOZZLE [001] The invention relates to a plastic container that has a nozzle for pouring according to the preamble of claim 1.

[002] Tinplate or non-ferrous metal sheet, glass or ceramic containers, which were conventional in the past, are increasingly being replaced by plastic containers. Recently, mainly plastic containers are being used especially for the packaging of fluid substances; for example, for domestic applications, in agriculture, industry and commerce, etc. Low weight and lower costs certainly play a significant role in this substitution. The use of recyclable plastic materials and the overall more favorable total energy balance in their manufacture also contribute to promoting the acceptance of plastic containers, especially plastic bottles, among users.

[003] Single-layer or multi-layer plastic containers are often produced in the so-called blow molding and extrusion method especially in a blown pipe extrusion method. Extrusion and blow molding machines which are used for the extrusion and blow molding method generally have one or more extruders to supply the required plastic material. The extruder outlet is connected to an extruder head, in whose outlet nozzle, which can preferably be adjusted in the opening width, the extruded tube emerges. The extruded plastic tube can have one or more layers. The piping that emerges continuously or almost continuously from the outlet nozzle is transferred to a blow molding tool arrangement and is inflated by overpressure using a blow chuck that has been moved into the mold cavity. After that, the inflated plastic container is removed from the mold cavity.

[004] Plastic containers of polyethylene terephthalate (PET) and

Petition 870190097573, of 09/30/2019, p. 10/28 / 15 similar materials are generally produced in a method called stretch blow molding. Here a cylindrical preform is produced primarily in an injection molding process in an injection mold. Recently, flow molding methods have been suggested to produce preforms. The preform has an essentially elongated cylindrical body and is closed at one longitudinal end. A support ring separates the body from a neck section with a pour opening. The neck section already has the final shape of the bottle neck. Outside the neck section, threaded or similar sections can already be made to fix a closing part. The preform is removed from the mold after its production and either further processed or temporarily stored for further processing in a blow molding and stretching machine. Before further processing in the blow molding and stretching machine, the preform is conditioned, if necessary; after that it is inserted into a blow mold of the blow molding and stretching machine. In the blow mold, the preform is finally inflated by a gas which has been blown in with overpressure according to the mold cavity and here the preform is in general additionally stretched with a drawing mandrel. A method of blow molding and injection is also known, in which the blow molding process takes place directly after the injection of the preform. The preform remains on the injection core which furthermore forms a type of stretching mandrel. The preform is in turn inflated by overpressure according to the mold cavity of a blow mold which is released over the injection core or vice versa and in doing so, it is drawn by the drawing mandrel. After that, the finished plastic container is removed from the mold.

[005] Depending on the type of substance to be poured, the plastic containers that were produced by the blow molding method and

Petition 870190097573, of 09/30/2019, p. 11/28 / 15 extrusion or by the blow molding and drawing method are often provided with different pouring nozzles. The pouring spout could, for example, make it possible to pour without splashing, simplify dosing or allow the smooth release of the substance contained in the container. Additionally, to adapt to the respective substance, the use of a pouring spout also offers the advantage that the same type of plastic containers can be equipped with a different pouring spout, according to the will of the bottler. The pouring spout can be equipped with devices that make it possible to seal the container. For example, for this purpose, a part of the pivotable cover is attached to the top of the pouring spout. However, there may also be pouring nozzles with sections that have an internal thread or external threaded sections which interact with the internal thread or the internal threaded sections of a twist cap.

[006] When the twist cap is actuated, especially when the screw is screwed on, it may happen that the pouring spout rotates concomitantly as a result of the applied torque. This can make it difficult to screw the twist cap. The concomitant rotation of the pouring spout can, however, lead mainly to the pouring spout no longer assuming its intended established position in relation to the container body, which must be conventionally maintained with an accuracy of + 15 °. Therefore, on the part of the manufacturer of the container or the one that bottles, a currently not negligible cost is being considered to ensure the accuracy of the pouring tip position and to avoid twisting the pouring tip when the twist cap is activated.

[007] In one version, the pouring spout that is attached after filling the plastic container is adhered to the neck of the container into which it is inserted. Apart from the additional effort and additional costs, the adhesive used to adhere is undesirable in recycling plastic containers and requires additional separation and cleaning steps. Nozzle adhesion

Petition 870190097573, of 09/30/2019, p. 12/28 / 15 of shedding using electric welding techniques means a technical effort not negligible financial costs.

[008] An alternative version highlights the fact that the pouring spout after filling is forced into the neck of the container and is kept there by friction. Relatively large forces are applied to overcome the frictional forces when the nozzle is forced to pour into the neck of the container. This results in the plastic container having to resist increased compression. To ensure this, the plastic container must have a greater wall thickness and therefore must be produced with a greater container weight. This makes the production of the plastic container much more expensive. [009] In another version, the pouring spout is inserted into the neck of the container while it is still hot, immediately after blow molding the plastic container. When the plastic container is cooled the diameter of the container neck decreases. In this way, the neck of the container is more or less shrunk over the pouring spout. In this way, the plastic container is essentially fixed in relation to its position. The disadvantage of this version is, however, that the container must be loaded through the pouring spout. This reduces the loading speed. Depending on the pouring nozzle configuration, additional hardware modifications may be necessary; this adversely affects costs.

[0010] If the pouring spout is mounted immediately after the container is produced, or only after filling, in any case, a very careful alignment of the pouring spout must be made with reference to the container body.

[0011] In order to face the problem of concomitant turning of the mounted pouring spout when unscrewing the twist cap, it has also been proposed that the twist cap and / or the pouring spout be provided with a specially coated lubricant for one. The lubricant must be inert to the content, especially in the case of food, it must

Petition 870190097573, of 09/30/2019, p. 13/28 / 15 consumer. The choice of suitable lubricants is therefore relatively limited. Applying the lubricant to the twist cap and / or the pouring spout requires additional effort and added costs.

[0012] The object of this invention is, therefore, to remedy these disadvantages of plastic containers known from the prior art. It must be possible to abandon the use of lubricants. A plastic container and the relevant pouring spout must be modified in such a way that simple assembly is possible. Additional fixing steps for the pouring spout may be omitted. It is also possible to omit adhesives that could lead to additional costs in recycling plastic containers. Here, a project is attempted that is not opposed to the desire to optimize the plastic container in relation to its weight. Prerequisites must be created for the use of modified pouring nozzles with integrated or alternatively arranged closing devices.

[0013] These objectives are achieved in a plastic container which has the characteristics mentioned in the claim characterization section

1. Advantageous developments and / or versions of the invention constitute the subject matter of the dependent claims.

[0014] The invention considers a plastic container with a pouring spout that can be mounted on a container neck and that has one or more pourable openings that can be closed. On the neck of the container there is at least one cam that projects over a neck wall and is formed in a blow molding method. This method of blow molding can be a method of blow molding and extrusion or it can be a method of blow molding and stretching. The pouring spout has a body which can be connected to the neck of the container and which is made corresponding to a peripheral contour of the neck of the container. A corresponding number of receptacles for the cam (s) is made on a body wall facing the neck wall which is provided with at least

Petition 870190097573, of 09/30/2019, p. 14/28 / 15 minus a cam. In contrast to the plastic containers known from the prior art, the at least one cam that is formed in a blow molding method is formed on the inner wall of the neck of the container. The at least one receptacle on the body of the pouring spout corresponding to it is provided in an external wall of the body of the pouring spout.

[0015] The pouring spout which is equipped with at least one corresponding receptacle can conventionally be mounted quickly on the neck of the container which is provided with a cam, in particular it can be forced on it. The assembly of the pouring spout on the neck of the container can happen in a conventional way after filling; no technical modifications to the filling devices are necessary. As after its assembly, the pouring spout is positively maintained over the neck of the container, it may have a slightly smaller diameter than the neck of the container. In this way, much lower forces are required when assembling the pouring spout and the plastic container does not need an increased compressive strength. The positive connection between the pouring spout and the neck of the container can be made mobile over a certain peripheral area. However, as soon as one or at least one cam touches a peripheral edge of the receptacle, the mobility ends and, for example, a twist cap can be unscrewed from the pouring spout, or screwed on it. The positive connection between the pouring spout and the neck of the container allows an adhesive to be omitted. This makes it cheaper to produce the container and facilitates recycling after use. The configuration of the plastic container and the pouring spout, as claimed in the invention also makes it possible to omit the lubricant coatings from the pouring spout and / or a twist cap.

[0016] On the inner wall of the neck of the container there can be one or more, for example, two cams opposite each other. Consequently, the pouring spout is equipped with a corresponding number of receptacles;

Petition 870190097573, of 09/30/2019, p. 15/28 / 15 for example, it has two receptacles opposite each other.

[0017] At least one cam that was produced by the blow molding method being formed on the inner wall of the container neck and at least one receptacle being formed on the outer wall of the pouring nozzle body, assembly by simple insertion of the nozzle pouring is made possible. The at least one cam on the inner wall of the container neck does not represent a barrier for devices that, for example, are slid over the neck of the container during filling. If the neck of the plastic container on its outer wall has a thread or threaded segments, this can be easily used without the pouring spout and can be closed with a conventional twist cap. This increases the flexibility of using the plastic container.

[0018] In order to avoid overturning of the pouring spout when the screw cap is being actuated, at least one cam opposite the neck wall has a projection of 1.3 mm to 8 mm. Its extension in the peripheral direction of the neck wall is approximately 3 mm to 8 mm. The position of at least one cam is freely selectable. For production technology reasons, however, it is advantageous if at least one cam is located in the blow mold removal plane. In this way the plastic container can be removed very easily from the mold after inflation when the cams are located on the inner wall of the neck of the container.

[0019] For reasons of symmetry and in order to avoid further alignment of the container and the pouring spout, it is advantageous that the neck of the container has an essentially symmetrical peripheral contour in rotation. Preferably, it is made circular.

[0020] To facilitate the assembly of the pouring spout over the neck of the container, at least one receptacle in the body of the pouring spout extends upwards to the free end of the body. Additionally, in the container

Petition 870190097573, of 09/30/2019, p. 16/28 / 15 where there may be an axial safeguard that prevents the pouring spout from being pushed out and which only allows this to destroy the body.

[0021] In order to reduce the effort for aligning the pouring spout for assembly, in another configuration of the invention, the at least one receptacle runs on a centering guide whose extension measured in the peripheral direction extends towards the free end of the body . Depending on the axial length of the body, the centering guide feed chamfers allow tolerances in the precision of the pouring nozzle alignment with reference to the neck of the container, especially with reference to the arrangement of the cams on the neck of the container up to + 30 °.

[0022] In another version of the invention the at least one receptacle is made as a connection guide for the at least one cam. The connection guide runs in the peripheral direction over an angular range of 45 ° to 90 °. The version of the invention which is based on the fundamental principle of the positive connection of the pouring spout and the neck of the container is intended especially for pouring spouts with alternative arrangements of the pouring opening (s) and with closing devices made alternatively. For example, the pouring spout has a cover plate which is provided with the pouring opening and which can be moved to overlap with an opening provided on the neck of the container, twisting the pouring spout in relation to the neck of the container. container.

[0023] Another exemplary configuration of the plastic container with a pouring spout faces at least one receptacle to be made in the body of the pouring spout as a connection guide for at least one cam which extends over an angular range of 45 ° to 90 ° in the peripheral direction. Here the connection guide is placed to run obliquely in such a way as to twist the. pouring nozzle in relation to the container neck results in an axial displacement of the pouring nozzle out of the container neck or back again. The axial mobility of the pouring nozzle can facilitate the

Petition 870190097573, of 09/30/2019, p. 17/28 / 15 pouring process This, however, also allows for alternative arrangements for the pouring opening (s). For example, the pouring spout has at least one pouring opening which is located on the side wall of the body and is only opened in the extended position of the pouring spout. When the pouring spout has been pulled into the neck of the container, the pouring opening is closed.

[0024] On the two end sections of the connection guide, there may be latch projections for the cam. The latch projections protrude in the cam positioning path to such an extent that they can be overcome with relatively little force expenditure. The latch projections, however, prove that the relative position established between the cam and the connection guide does not change unintentionally.

[0025] The plastic container with cam (s) on the neck of the container can be produced by the method of blow molding and extrusion or also by a method of blow molding and stretching from a preform produced separately. Prefabricated preforms generally have a completely formed neck section with an external thread that is no longer altered in the next blow molding process. However, it goes without saying that preforms can also be prefabricated without a thread in the neck sections. The threaded sections can then be produced in the following blow molding process by correspondingly formed sliding parts. Therefore, at least one cam can be prepared on the neck of the container. The version as claimed in the invention is, however, produced preferably by a method of blow molding and extrusion that allows a greater degree of freedom in relation to the configuration of the neck section of the plastic container. In particular, in the blow molding and extrusion method the formation of the container neck occurs only in the blow mold.

[0026] The pouring spout with at least one receptacle on its body

Petition 870190097573, of 09/30/2019, p. 18/28 / 15 is advantageously produced in an economical plastic injection method. [0027] Other advantages and characteristics will become clear from the following description of the exemplary versions of the invention with reference to the schemes. Figures are not to scale.

[0028] Figure 1 shows a perspective view of a container neck with a pouring spout inserted;

Figure 2 shows a cross-section through the container neck with a pouring spout inserted from Figure 1;

Figure 3 shows a plan view of the neck of the container from Figure 1;

Figure 4 shows a side view of the neck of the container;

Figure 5 shows a side view of the container neck from Figure 1;

Figure 6 shows a partially cut perspective of a second exemplary configuration of the invention;

Figure 7 shows a perspective according to Figure 6 with a pouring spout that is rotated with respect to Figure 6;

Figure 8 shows a partially cut perspective of an example configuration of the invention; and Figure 9 shows a perspective according to Figure 8 with a pouring spout that has been axially displaced and twisted with respect to Figure 8.

[0029] Figure 1 shows a partially cut neck section of a plastic container identified as 1, for example, a plastic bottle with a pouring spout that is identified as 10. Plastic container 1 is produced by a molding method blow, for example in a blow molding and extrusion method or by a blow and stretch molding method and consists of plastic materials which are conventionally used by these methods, such as for example PE,

Petition 870190097573, of 09/30/2019, p. 19/28 / 15 especially HDPE, PP, PET, PEN, OS, PLA, PA as well as copolymers of these materials, etc. It can be built in one or more layers.

[0030] The plastic container 1 has a neck of container 2 on whose outer wall a thread is formed 3. In the case of a plastic container that was produced by a blow molding and stretching method, this external thread is already completed in the preform that had previously been produced by a plastic injection method and is not further changed in the blow molding process. In the blow molding and extrusion method the neck of the container with the external threads is formed only in the blow mold in the inserted section of the extruded plastic tube. The pouring spout that had been inserted into the neck of the container 2 has a pouring opening 11. The illustrated pouring spout 10 is made in such a way that the downward scoring liquid is collected at the opening edge and routed back in. of the plastic container 1. To do this, the pouring spout has a body 12 with a cylindrical jacket, from whose bottom a pouring connection protrudes and in which there is a real pouring opening 11. The bottom is provided with at least least one opening (not shown) through which the liquid can drain back into the plastic container. The cylindrical sleeve of the body 12 has a peripheral flange collar 13 with which it is supported on the opening edge of the container neck 2. In an alternative version of the plastic container, a peripheral ring projection can be made on the container neck. on which the pouring nozzle body is supported. The body 12 of the pouring spout 10 has an outer wall 14 with a peripheral contour which corresponds to that of the inner wall 4 of the neck of the container 2.

[0031] The cross section of Figure 2 shows that the inner wall 4 of the neck of the container 2 and the outer wall 14 of the body 12 of the pouring spout have a circular cross section that is made corresponding to each other. THE

Petition 870190097573, of 09/30/2019, p. 20/28 / 15 pouring opening of the pouring spout 10 is identified as 11. Figure 2 shows that the pouring spout 11 that has been inserted into the neck of the container 2 is positively fixed against twisting. For this reason, a cam 7 is formed on the inner wall 4 of the neck of the container 2. The cam interacts positively with a receptacle 15 on the outer wall 14 of the body 12 of the pouring spout 11. The cam 7 is produced by a method of blow molding inside the blow mold. Its contour follows that of a corresponding projection on the blow mold and is fixed by an inflation process. If necessary, during the blow molding method, a calibration of the container neck occurs. On the outside of the neck of the container 2, a recess 8 shows where the plastic material was pressed against the projection on the blow mold. To simplify the removal of the plastic container from the mold after inflation, cam 7 is located on a blow mold removal plane. A plane rotated by 90 ° with respect to the parting plane of the blow mold is referred to here as the mold removal plane.

[0032] Figure 3 shows a plan view of the plastic container

1. The neck of the container is identified as 2, the external thread is identified as 3. The figure clearly shows the cam 7 projecting from the inner wall 4 of the neck of the container 2. The projection length of the cam 7 in relation the inner wall 4 is approximately 1.3 mm to 8 mm. The length of the cam 7 measured in the peripheral direction is, for example, 3 mm to 8 mm. Figure 3 shows only a single cam. Needless to say, there may be several, for example, two cams that diametrically opposed to each other, are molded on the inner wall of the neck of the container. On the external wall of the pouring nozzle body, there are then two corresponding receptacles. However, there may also be several cams which are distributed asymmetrically over the inner wall of the container neck. This can be advantageous for precise assembly of the pouring spout.

Petition 870190097573, of 09/30/2019, p. 21/28 / 15 [0033] In the side view of the plastic container 1 shown in Figure 4, the recess that results from the blow mold on the outside of the neck of the container 2 is identified as 8. It is located, for example, under the thread threads 3. The recess may, however, also be located between the thread threads, for space reasons.

[0034] Figure 5 shows a side view of the pouring spout 10 of Figure 1. The body of the pouring spout 10 is identified as 12. It has a cylindrical jacket from whose bottom a pouring connection protrudes, in which there is the pour opening 11. The bottom runs at an angle and is provided with at least one opening (not shown) through which the liquid can be drained out. The cylindrical jacket of the body 12 has a peripheral flange-like collar 13 with which it is supported on the rim of the container neck opening. The receptacle 15 is recessed in the outer wall 14 of the body 12. In the exemplary configuration shown in the pouring spout 10, the receptacle 15 extends in the outward direction from the flange-type collar 13 and discharges into a centering guide 17 with the chamfers feed 18. The centering guide 17 with the feed chamfers 18, facilitates the precise assembly in position of the pouring spout 10 in the neck of the container. Depending on the axial length of the body 12, the feed chamfers 18 of the centering guide 17 allow tolerances in the alignment accuracy of the pouring spout 10 with reference to the neck of the container, especially with reference to the arrangement of the cam (s) in the container neck, up to + 30 °.

Figures 6 and 7 show a second exemplary configuration of the invention in schematic form in two positions. The neck of the container is identified as 2. The pouring spout is identified as 20. It has a slightly cup-shaped body 22 at the bottom of which is a pouring opening 21. On the wall 24 of the body 22 facing the inner wall 4 of the neck of the container 2 a receptacle in the form of

Petition 870190097573, of 09/30/2019, p. 22/28 / 15 slot 25 is lowered for positive accommodation of a cam 7 which protrudes from the inner wall 4 of the neck of the container 2. The receptacle 25 is made as a connection guide 26 and extends in a peripheral direction over an angular range from approximately 45 ° to 90 °. In the neck of the container 2, a plate-shaped neck seal 6 is formed which has an opening 5. By twisting the pouring spout 20 in relation to the neck of the container 2, the pouring opening 21 in the pouring spout 20 and the opening 5 in the neck 6 cover are made to overlap and thus the plastic container is opened (Figure 7). By turning the pouring spout 20 back to the starting position (Figure 6) the plastic container is closed again. On the two end sections of the connection guide 26 the latch projections 29 for the cam 7 protrude. The latch projections 29 project into the positioning path of the cam 7 to such an extent that they can be overcome with a relatively low expenditure of force. However, the latch projections 39 provide for the establishment of a relative position between the cam 7 and the connection guide 26 that does not intentionally change.

[0035] Figures 8 and 9 show another exemplary configuration of the present invention in schematic form in two positions. The neck of the container is identified as 2. The pouring spout is identified as 30. It has a slightly cup-shaped body 32, at the bottom of which is a pouring opening 31. On the wall 34 of the body 32 facing the inner wall 4 of the neck of the container 2 a slot-shaped receptacle 35 is recessed for positive accommodation of a cam 7 which protrudes from the inner wall 4 of the neck of the container 2. The container 35 is made as a connection guide 36 and extends in the peripheral direction over an angular range from approximately 45 ° to 90 °. The connection guide 36 is made to run obliquely in the wall 34 of the body 32 such that twisting the pouring spout 30 in relation to the neck of the container 2 results in axial displacement of the pouring spout 30 out of the neck of the container.

Petition 870190097573, of 09/30/2019, p. 23/28 / 15 container 2 or back again. Here, a pour opening 31 which is provided in the wall 34 of the body 32 is eliminated or is re-closed. On the two end sections of the connection guide 36 the latch projections 39 s and onto the cam 7 protrude. The latch projections 39 project into the positioning path of the cam 7 to an extent such that they can be overcome with relatively low force expenditure. However, the latch projections 39 provide for the establishment of a relative position between the cam 7 and the connection guide 36 which does not change unintentionally.

[0036] For reasons of better clarity. Figures 6 and 9 omit the suggestion of thread threads on the neck of the container. Alternatively to a twist cap, but also a snap-fit cap could be provided which can be mounted on the body of the respective pouring spout whose body is shaped like a cup.

[0037] The disadvantages described initially of the plastic container with a pouring spout of the prior art are remedied by the positive connection of the pouring spout to the container neck. The positive connection of the pouring spout also creates the prerequisites for alternative versions of the pouring spout and caps. The cam that is formed on the neck of the container can be produced by a blow molding method. In particular, the blow molding and extrusion method for the production of plastic containers with one or more cams located on the neck wall requires only minor modifications which can also be made on existing molding tools without much effort. In an arrangement of the cam (s) on the inner wall of the container neck the plastic container is not optically affected in an adverse manner. It can be used with or without mounted pouring spouts. Depending on the execution of the pouring spout, the positioning accuracy can be improved by the positive connection. The pouring nozzle only needs to be equipped with corresponding receptacles and is advantageously produced by an economical plastic injection method.

Claims (14)

1. Plastic container with a pouring spout which can be mounted on the neck of the container and which has one or more pourable openings that can be closed, on the neck of the container (2) with at least one cam, which protrudes over a neck wall (2) and is formed by a blow molding method, and the pouring spout (10, 20, 30) has a body (12, 22, 32) which can be connected to the neck of the container and which is made corresponding to a peripheral contour of the neck of the container (2) and has a corresponding number of receptacles (15, 25, 35) for the cam (s) (7) made in a wall ( 14, 24, 34) facing the neck wall (4) which is provided with at least one cam (7), characterized by the fact that at least one cam (7) is formed in an internal wall (4) of the neck of the container (2) and the at least one receptacle (15, 25, 35) is formed in an external wall (14, 24, 34) of the body (12, 22, 32) of the pouring spout (10, 20, 30). Plastic container with a pouring spout according to claim 1, characterized by the fact that at least one cam (7) opposite the neck wall (4) has a projection from 1.3 mm to 8 mm. Plastic container with a pouring spout according to any one of claims 1 and 2, characterized in that at least one cam (7) has an extension of 3 mm to 8 mm measured in the peripheral direction of the neck wall ( 4). 4. Plastic container with a pouring spout according to any one of claims 1 to 3, characterized in that at least one cam (7) is in a plane for removing the mold from the blow mold. Plastic container with a pouring spout according to any one of claims 1 to 4, characterized in that the neck of the container (2) has an essentially symmetrical peripheral contour Petition 870190097573, of 09/30/2019, p. 25/28 2/3 rotating, preferably circular. 6. Plastic container with a pouring spout according to any of claims 1 to 5, characterized in that at least one receptacle (15) extends in the body (12) of the pouring spout (10) as far as the free end of the body (12). Plastic container with a pouring spout according to claim 6, characterized by the fact that the at least one receptacle (15) runs into a centering guide, (17) whose extension measured in the peripheral extension widens in the direction of the free end of the body (12). Plastic container with a pouring spout according to any one of claims 1 to 7, characterized in that the at least one receptacle (25, 35) is made as a connection guide (26, 36) for at least a cam (7) that blushes in the peripheral direction and extends over an angular range of 45 ° to 90 °. Plastic container according to claim 8, characterized by the fact that the pouring spout (20) is provided with a pouring opening (21) which can be made to overlap with an opening (5) provided on the neck of the container (2) by twisting the pouring spout (20) in relation to the neck of the container (2). 10. Plastic container with a pouring spout according to any one of claims 1 to 7, characterized in that the at least one receptacle (35) on the body (32) of the pouring spout (30) is made as a connection guide (36) for at least one cam (7) which extends in a peripheral direction over an angular range of 45 ° to 90 ° and is arranged to run obliquely in such a way that the twist of the pouring spout ( 30) in relation to the container neck (2) results in an axial displacement of the pouring spout outwards (30) from the container neck (2) or back again. 11. Plastic container with pouring spout according to Petition 870190097573, of 09/30/2019, p. 26/28 3/3 claim 10, characterized by the fact that the pouring spout (30) has a pouring opening (31) which is located on the side wall (34) of the body (32) and is opened only in the axially extended position of the pouring spout (30). 12. Plastic container with a pouring spout according to any one of claims 8 to 11, characterized by the fact that in the two end sections of the connection guide (26, 36) there are latch projections (29, 39) for the cam (7). 13. Plastic container with a pouring spout according to any one of claims 1 to 12, characterized in that the plastic container is produced by a method of blow molding and extrusion. 14. Plastic container with a pouring spout according to any of claims 1 to 13, characterized in that the pouring spout is produced by a plastic injection method.