CAP AND CONTAINER NECK FOR TEMPORARY WARRANTY STRAP REMOVAL

Description

[0001] The present invention relates to a closure cap comprising a lid section and a cap shell, wherein the cap shell has an internal thread and defines a closure axis, such that the closure cap can be screwed onto an external thread of a container neck, wherein a circumferential tamper-evident band is arranged on an edge of the cap shell facing away from the lid section, the band being connected to the cap shell via several tearable bridges, wherein at least one locking element is arranged on the inside of the tamper-evident band, the locking element extending inwards from the tamper-evident band, the locking element having a first stop surface with a surface normal arranged at least partially tangentially to the cap shell, such that the first stop surface can be brought into engagement with a container having a container neck in an assembled state of the closure cap with a first stop surface of the container neck.where, through the engagement of the two first stop surfaces, a holding torque is exerted on the warranty strap in the opposite direction to the opening direction of the closure cap when the closure cap is turned in the opening direction.

[0002] The present disclosure further describes a container with a container neck, wherein the container neck defines a container neck axis and has a pouring opening and an external thread for receiving a closure cap with an internal thread, wherein at least one detent element is arranged on the container neck on a side of the external thread facing away from the pouring opening, wherein the detent element extends outwards from the container neck, wherein the detent element has a first stop surface with a surface normal arranged at least partially tangentially to the container neck, such that the first stop surface can be brought into engagement with a first stop surface of the closure cap in a composite state of the container with a closure cap, wherein the engagement of the two first stop surfaces exerts a holding torque on the first stop surface of the closure cap acting against an opening direction of the closure cap.when the cap is turned in the opening direction.

[0003] The present invention further relates to a combination of a cap and a container, wherein the cap has a lid section and a cap shell with an internal thread, and the container has a container neck with an external thread, such that the cap can be screwed onto the external thread of the container neck, wherein the cap shell defines a closure axis and the container neck defines a container axis, wherein the closure axis and the container neck axis are coincident in the assembled state of the cap and container, wherein a circumferential tamper-evident band is arranged on an edge of the cap shell facing away from the lid section, which is connected to the cap shell via several tearable bridges, wherein at least one locking element is arranged on the inside of the tamper-evident band.wherein at least one further locking element is arranged on the container neck on one side of the external thread facing away from the pouring opening, wherein the locking element of the closure cap and the locking element of the container neck are designed and arranged such that, in a combined state of closure cap and container, a first stop surface of the locking element of the closure cap can be brought into engagement with a first stop surface of the locking element of the container, wherein, through the engagement of the two first stop surfaces, a holding force acting against the opening direction of the closure cap is exerted on the tamper-evident band when the closure cap is turned in the opening direction.

[0004] In DE 20 2007 009673 U1 and US 2012 / 031871 A1, a container is described comprising a container body; a head section provided on the container body with a filling and dispensing opening, on the outside of which a first screw connection section is provided; and a closure cap which is provided with a second screw connection section for screwing onto the first screw connection section of the head section and a tamper-evident band adjoining the second screw connection section on the side facing the container body. The container further comprises a safety device in which, in one embodiment, the head section of the container body is provided with a first engagement section that engages with a second engagement section on the tamper-evident band of the closure cap.

[0005] In the following, "top" etc. always refers to a position or direction in the axial direction, pointing towards the lid section (for the cap) or towards the pouring opening (for the container). "bottom" etc. refers to a position or direction in the exact opposite axial direction (rotated 180 degrees). For example, the cap body is located above the tamper-evident band. In the following, "inside" etc. always refers to a position or direction radially towards the axis of the closure or the container neck, and "outside" etc. always refers to a position or direction radially away from the axis of the closure or the container neck.

[0006] The affected containers with caps are in the form of bottles or canisters for liquids, typically used in agriculture or the chemical industry, for example for fertilizers, cleaning fluids, etc. Such containers are generally made of plastic and, in combination with appropriate closures, have features that visibly indicate to a consumer when the closure has been opened for the first time.

[0007] The cap has the shape of a screw cap with a top plate and a cylindrical cap body with an internal thread that fits the external thread of the container neck.

[0008] To indicate when the seal has been opened, i.e., when the cap has first been detached from the container neck, it has become standard practice to use so-called tamper-evident bands – also known as TE bands. These bands are attached to the cap, specifically to the lower edge of the cap's sleeve, in such a way that they break off if tampering is attempted or the cap is opened. "TE" stands for "Tamper Evidence." This prevents, or at least makes it apparent, if a container has been partially or completely emptied and refilled with other, inferior substances before its normal first opening. These substances could alter the contents of the container and pose a health or safety risk to the consumer, or simply do not meet the specifications of the original contents.

[0009] The connection between the tamper-evident band and the other components of the cap must break or tear easily enough, both during attempted tampering and normal opening, to avoid unnecessarily hindering manual opening. At the same time, the tamper-evident band must also be securely attached to the other components of the cap so that the connection is not damaged or partially or completely torn off when the cap is attached to the container neck.

[0010] For this purpose, the warranty band is connected to the cap mantle of the closure cap, for example via a weakened, thin-walled wall section or via several easily tearable bridges.

[0011] To ensure that the warranty band is inevitably torn upon initial opening, it features locking elements on its inner surface, such as locking teeth. These teeth are designed to engage with corresponding locking elements on the container neck, such as the teeth of a toothed ring, both when and after the container is closed, thus preventing the warranty band from rotating in the opening direction. Often, the locking elements of the cap also form a toothed ring, so that two toothed rings face each other when the cap is attached to the container neck.

[0012] The teeth of the container neck's toothed ring are typically designed so that, when the container is first closed, the locking teeth of the tamper-evident band can slide over the tips of the teeth without the tamper-evident band tearing completely or partially from the cap. Only when the cap is turned to open do the teeth of the container neck's toothed ring engage with the locking teeth of the tamper-evident band in such a way as to prevent the tamper-evident band from rotating with the rest of the cap. The tamper-evident band then tears completely from the cap as a result of the opening process.

[0013] The tips of the teeth of the toothed ring define a maximum radius of the toothed ring on such container necks, also referred to here as the "first radius." Preferably, these teeth are arranged so that they are all, or at least predominantly, on the same radius with respect to the central axis of the external thread. Between the teeth are gaps whose base defines a minimum radius of the toothed ring, also referred to as the "second radius," and which generally also lies on a common radius with respect to the central closure axis defined by the external thread. The minimum radius of the toothed ring is generally at least as large as the nominal radius of the external thread on the container neck to prevent interference between the locking teeth of the tamper-evident band and the thread on the container neck when the closure is applied.

[0014] The tips of the teeth could also be arranged on partially different radii with respect to the central axis. Similarly, not every tooth base between adjacent teeth necessarily has to have the minimum radius.

[0015] After the initial opening, the tamper-evident bands with locking teeth do not form a positive or frictional connection with the container neck in the axial direction, as the locking teeth engage loosely in the tooth gaps and are only secured against rotation in the opening direction. Axial retaining rings, which are common and necessary on the container neck for other tamper-evident bands, such as flexible bands, are generally not present on tamper-evident bands with locking teeth, as these would hinder the screwing of a cap onto the container neck. Corresponding shapes, such as undercuts, for axially retaining the tamper-evident band against the toothed ring cannot be formed on the locking teeth of the tamper-evident band, as screw caps with such undercuts could not be demolded from the mold for the screw cap with the tamper-evident band.On the other hand, tamper-evident bands with locking teeth offer a high level of security against manipulation, especially for closures with large diameters between, for example, 50 and 80 mm, so they are often used for large containers such as canisters.

[0016] Therefore, if the cap is unscrewed from the container neck, the tamper-evident band, which loosely encloses the toothed ring, can be removed from the container neck or fall off when the container is tilted to pour out its contents (e.g., a liquid). Thus, during pouring, the tamper-evident band can slip off the container neck and fall into another container into which the contents are being poured. For example, a liquid in the container might be being poured into a mixer or dispensing system, and an unintentional falling tamper-evident band into such a container or mixer could cause significant operational disruptions.This falling of the warranty band due to gravity is particularly unpleasant if the ring falls into a liquid container connected to a machine such as a large sprayer for plant protection or a hydraulic reservoir on a hydraulically operated machine.

[0017] While it is conceivable to fine-tune the inner diameter of the tamper-evident band, defined by its locking teeth and gaps, to ensure the locking teeth maintain a frictional connection with the ring around the entire circumference of the container neck, thus preventing the band from falling off, in practice the dimensions of the ring on a container neck, typically manufactured from plastic using a blow molding process, vary too much to reliably prevent the band from falling off. Furthermore, the inner diameter defined by the locking teeth cannot be reduced too much below the minimum radius defined above, as this would hinder the application of the closure to the container neck, potentially leading to operational disruptions during filling.

[0018] The present invention is therefore based on the objective of creating a closure cap and a container with a container neck that largely prevent the unintentional detachment of a warranty band, which has already been separated from the remaining components of the closure cap, from a container neck.

[0019] This problem is solved by a closure cap with a lid section and a cap shell, wherein the cap shell has an internal thread and defines a closure axis, so that the closure cap can be screwed onto an external thread of a container neck, wherein a circumferential tamper-evident band is arranged on an edge of the cap shell facing away from the lid section, which is connected to the cap shell via several tearable bridges, wherein at least one locking element is arranged on the inside of the tamper-evident band, wherein the locking element extends inwards from the tamper-evident band, wherein the locking element has a first stop surface with a surface normal arranged at least partially tangentially to the cap shell, so that the first stop surface can be brought into engagement with a container having a container neck in an assembled state of the closure cap with a first stop surface of the container neck.wherein, through the engagement of the two first stop surfaces, a holding torque acting against the opening direction of the cap is exerted on the tamper-evident band when the cap is first rotated in the opening direction. According to the invention, at least one blocking element is arranged on the tamper-evident band of the cap, wherein the blocking element has a second stop surface with a surface normal pointing at least partially in the axial direction, such that the second stop surface can be brought into engagement with a second stop surface of the container neck in an assembled state of the cap with the container, wherein, through the engagement of the two second stop surfaces, a holding force acting in the axial direction is exerted on the tamper-evident band when the container is tilted for pouring a fill material.

[0020] The invention is based on the idea that the locking element of the cap, and its interaction with the container neck, prevents the tamper-evident band from detaching from the container when the container is tilted. This prevents, for example, the tamper-evident band from falling off if a canister equipped with a tamper-evident band and a standard top opening is tilted more than 90 degrees from its upright position. The locking elements alone only block rotational movement of the tamper-evident band in the opening direction of the cap, which corresponds either to a clockwise circumferential direction, but in most cases to a counterclockwise circumferential direction. The locking element additionally restricts the movement of the tamper-evident band in the axial direction, particularly in the axial direction extending from the tamper-evident band towards the cap section.

[0021] In one embodiment of the closure cap according to the invention, the blocking element and the locking element are two separate elements, preferably spatially separated from each other.

[0022] According to the invention, the blocking element is a radially inwardly projecting projection extending from the warranty band, wherein the projection is preferably formed integrally with the warranty band.

[0023] According to the invention, the blocking element is a radially inwardly projecting projection extending from the warranty band. Such a projection can be produced easily and simply using injection molding and represents a good compromise between the desire for minimal material usage on the one hand and the desire for reliable axial securing of the warranty band against detachment on the other.

[0024] The locking element of the cap is preferably designed and arranged such that the initial screwing or fitting (application) onto or over the container neck is possible elastically and with less force than would be required for a cap without locking elements, while simultaneously providing sufficient holding force through a positive-locking engagement between the second stop surface of the cap's locking element and the second stop surface of the container neck. This prevents the tamper-evident band from coming loose when the container is tilted, regardless of the angle. Furthermore, in one embodiment, it should not be easily possible for the user to detach the tamper-evident band from the container neck using only hand or finger force.

[0025] In one embodiment of the closure cap according to the invention, the projection designed as a blocking element or the plurality of projections designed as blocking elements protrude radially inwards by 0.3 to 1 mm, preferably by 0.7 to 0.8 mm, from a surface of the warranty band adjacent to the projection or projections.

[0026] The dimensioning of the blocking element of the closure cap according to the invention described here enables both easy application of the closure cap to the container neck and sufficient securing of the warranty band against unintentional or intentional detachment.

[0027] According to the invention, the locking element is arranged on the side of the locking element facing away from the lid section. A closure cap with such an arrangement of the locking elements can be manufactured particularly easily and cost-effectively. Furthermore, due to the geometry of the closure cap, the side of the locking element facing away from the lid section is most elastically deformable, so that the locking element can be moved easily over a protruding locking element of the container, which has a larger outer radius than the inner radius of the locking element of the closure cap, when the closure cap is first screwed or placed over it.

[0028] According to the invention, at least two radially inwardly projecting protrusions are provided as blocking elements on the warranty band.

[0029] Preferably, 8 to 16 and particularly preferably 10 to 14 radially inwardly projecting protrusions are provided as blocking elements on the warranty band.

[0030] In one embodiment of the closure cap according to the invention, a blocking element designed as a projection extends over a circumferential section of the warranty band, which is between 1 / 36 and 1 / 24 of the total circumference of the warranty band.

[0031] In one embodiment of the closure cap according to the invention, the blocking elements are arranged equidistantly in the circumferential direction. This arrangement ensures a holding force acting homogeneously on the tamper-evident band when a container, which is connected to the tamper-evident band via the blocking element after the closure cap has been opened for the first time, is tilted.

[0032] In one embodiment of the closure cap according to the invention, the blocking element is a radially inwardly projecting projection extending circumferentially over the entire circumference. A correspondingly shaped projection is also referred to as a ring. Such a ring ensures a very homogeneous holding force, but requires more material than several short projections.

[0033] In one embodiment of the closure cap according to the invention, the blocking element has a rectangular, trapezoidal, or foot-shaped cross-section in a cross-sectional plane extending in the axial and a radial direction. These cross-sections are particularly well suited for a positive-locking engagement between the second stop surface of the closure cap's blocking element and the second stop surface of the container neck.

[0034] In one embodiment of the closure cap according to the invention, the locking element is designed as a projection, wherein the projection has at least one circumferentially extending rounded edge, the rounded edge preferably having a radius of curvature of 0.6 mm to 1.5 mm. Since the tamper-evident band and the locking element of the closure cap must be deformed as elastically as possible when the closure cap is attached to a container so that the two secondary contact surfaces can engage, the rounded edge described above is advantageous because it ensures a uniform distribution of forces during deformation and thus prevents cracks and breaks when the closure cap is attached.

[0035] In one embodiment of the closure cap according to the invention, the blocking element has, on its side facing away from the lid section, or alternatively, an additional guide element arranged on the side of the blocking element facing away from the lid section, a guide chamfer with a surface normal on its side facing away from the lid section, wherein the surface normal of the guide chamfer extends axially away from the lid section and is oriented radially inwards, wherein the guide chamfer is suitable to cause a uniform deformation of the tamper-evident band when the closure cap is first attached to a container.The chamfer advantageously ensures a uniform deformation of the tamper-evident band and the locking element attached to it when the cap is fitted onto a container neck, provided that the locking element of the cap has a minimum inner radius that is smaller than the maximum outer radius of the container's locking element, so that the latter must be overcome by elastic deformation when the former is fitted.

[0036] In one embodiment of the closure cap according to the invention, the leading chamfer extends radially inwards from a starting inner radius, wherein the starting inner radius is greater than or equal to the maximum outer radius of a blocking element of a container neck which is intended to be brought into contact with the closure cap.

[0037] A container with a container neck is also disclosed, wherein the container neck defines a container neck axis and has a pouring opening and an external thread for receiving a cap with an internal thread, wherein at least one locking element is arranged on the container neck on a side of the external thread facing away from the pouring opening, wherein the locking element extends outwards from the container neck, wherein the locking element has a first stop surface with a surface normal arranged at least partially tangentially to the container neck, such that the first stop surface can be brought into engagement with a first stop surface of the cap in a composite state of the container with a cap, wherein the engagement of the two first stop surfaces exerts a holding torque on the first stop surface of the cap acting against an opening direction of the cap.when the cap is first turned in the opening direction. A locking element is arranged at the neck of the container, the locking element having a second stop surface with a surface normal pointing at least partially in the axial direction, so that the second stop surface can engage with a second stop surface of the cap when the container is assembled with the cap, whereby the engagement of the two second stop surfaces exerts a holding force acting in the axial direction on the second stop surface of the cap when the container is tilted to pour out a contents.

[0038] A container within the meaning of the present invention shall in particular also be understood to be a preform, especially such preforms which are intended to be further processed by blow molding.

[0039] The container offers the possibility of connecting it with a sealing cap having a tamper-evident band, so that, with appropriate design of the sealing cap, for example according to one of the embodiments of the sealing cap according to the invention described above, a loosening of the tamper-evident band is reliably prevented if the container is tipped over during normal use.

[0040] In one embodiment of the container, the blocking element and the locking element are two separate elements, preferably spatially separated from each other.

[0041] In one embodiment of the container, the blocking element is a radially outward-projecting projection extending from the container neck or a radially inward-projecting recess in the container neck. Such a projection can be easily and simply produced in a container, especially a preform, using injection molding, and here too represents a good compromise between the desire for minimal material usage on the one hand and the desire for reliable protection against the removal of a tamper-evident seal on a cap used to close the container.

[0042] In one embodiment of the container, the projection designed as a blocking element, or the projections designed as several blocking elements, protrude radially outwards by 0.3 to 1 mm, preferably by 0.7 to 0.8 mm, beyond the surface(s) of the container neck adjacent to the projection or projections.

[0043] In one embodiment of the container, the base of the depression (or depressions) designed as a blocking element is 0.5 to 1 mm, preferably 0.7 to 0.8 mm, radially offset inwards to the surface of the container neck adjacent to the respective depression.

[0044] The dimensioning of the container neck blocking element described here corresponds to the dimensioning of the blocking element of the closure cap according to the invention described above. Similarly, the dimensioning described here also allows for both easy application of the closure cap to the container neck and sufficient securing of the tamper-evident band against unintentional or even intentional detachment.

[0045] In one embodiment of the container, the locking element is arranged on the side of the locking element facing away from the pouring opening. This allows the use of a corresponding closure cap in which the locking element is located on a side facing away from the lid section of the closure cap, offering the advantages described above for this case.

[0046] In one embodiment of the container, at least two, preferably 8 to 16 and particularly preferably 10 to 14 radially outward projecting protrusions or radially inward projecting recesses are provided as blocking elements on the container neck.

[0047] In one embodiment of the container, a blocking element designed as a projection or a recess extends over a circumferential section of the container neck, which is between 1 / 36 and 1 / 24 of the total circumference of the section of the container neck adjacent to the projection.

[0048] In one embodiment of the container, the locking elements are arranged equidistantly in the circumferential direction. This arrangement ensures a homogeneous holding force acting on a tamper-evident band of the closure cap when the container, which is connected to the tamper-evident band via the locking element after the closure cap has been opened for the first time, is tilted.

[0049] In one embodiment of the container, the blocking element is a radially outward-projecting projection extending circumferentially around the entire circumference, or a radially inward-projecting recess extending circumferentially around the entire circumference. A correspondingly shaped projection is also referred to as a ring. Such a ring ensures a very homogeneous holding force, but requires more material than several short projections.

[0050] In one embodiment of the container, the blocking element has a rectangular, trapezoidal, or foot-shaped cross-section in a cross-sectional plane extending axially and radially. These cross-sections are particularly well suited for a positive-locking engagement between the second stop surface of the blocking element of the closure cap and the second stop surface of the closure cap.

[0051] In one embodiment of the container, the blocking element has a leading chamfer with a surface normal on its side closest to the pouring opening, wherein the surface normal of the leading chamfer is axially directed towards the pouring opening and radially outwards, wherein the leading chamfer is suitable to cause a uniform deformation of the tamper-evident band when a cap with a tamper-evident band is first attached to the container.

[0052] In one embodiment of the container, the leading chamfer of the container extends radially outwards from a starting outer radius, wherein the starting outer radius is less than or equal to the value of a minimum inner radius of a blocking element of a closure cap intended to be connected to the container.

[0053] The problem underlying the invention is also solved by a combination of a closure cap according to claim 1 and a container, wherein the closure cap has a lid section and a cap shell with an internal thread and the container has a container neck with an external thread, so that the closure cap can be screwed onto the external thread of the container neck, wherein the cap shell defines a closure axis and the container neck defines a container axis, wherein the closure axis and the container neck axis are coincident in the assembled state of the closure cap and container, wherein a circumferential tamper-evident band is arranged on an edge of the cap shell facing away from the lid section, which is connected to the cap shell via several tearable bridges, wherein at least one locking element is arranged on the inside of the tamper-evident band.wherein at least one further locking element is arranged on the container neck on one side of the external thread facing away from the pouring opening, wherein the locking element of the closure cap and the locking element of the container neck are designed and arranged such that, in an assembled state of the closure cap and container, a first stop surface of the locking element of the closure cap can engage with a first stop surface of the locking element of the container, wherein, through the engagement of the two first stop surfaces, a holding force acting against the opening direction of the closure cap is exerted on the tamper-evident band when the closure cap is first turned in the opening direction. A locking element is arranged on the tamper-evident band of the closure cap and a locking element is arranged on the container neck of the container, wherein the locking element of the closure cap and the locking element of the container are designed and arranged such thatthat in a composite state of closure cap and container, a second stop surface of the locking element of the tamper-evident band can be brought into engagement with a second stop surface of the locking element of the container neck, wherein, through the engagement of the two second stop surfaces, a holding force acting in the direction of the closure and container neck axis is exerted on the tamper-evident band when the container is tilted to pour out a filling material.

[0054] Further embodiments, features and advantages of the present invention are described with reference to the figures shown below. These show: Figure 1: a sectioned view of an embodiment of the combination of closure cap and container according to the invention along a section plane containing the closure axis / container axis, showing only the container neck; Figure 2: an enlarged view of area A from Figure 1Figure 3: a perspective view from a low angle of the cap Figure 1 Figure 4: a side view of the Figure 1 .

[0055] The principle of the invention becomes clear through the Figures 1 and 2 In Figure 1 A cross-section through an embodiment of the inventive combination of closure cap 1 and container 11 is shown, with only the area of ​​the container neck visible. Taken on its own, the Figure 1 The cap shown 1 also represents an embodiment of the cap according to the invention. In the view shown here, the cap 1 is completely screwed onto the container neck without the cap having been opened for the first time. This therefore represents the situation as it would appear to a user before opening the cap for the first time. In particular, the tearable bridges 6 between the cap body 3 and the tamper-evident band 5 are not yet torn.

[0056] Based on the Figure 1 It is already evident that the warranty band 5 has a projection at its lower edge, i.e., on the side of the warranty band 5 facing away from the cover section 2, at both visible cross-section positions, which projects radially inwards. This projection constitutes a blocking element 9 arranged on the warranty band within the meaning of the present invention. The mode of operation of this blocking element 9 will become particularly clear from the following description of the Figure 2 .

[0057] Figure 2 shows a magnification of area A from Figure 1This is a detailed view of the area around a locking element 9 of the closure cap 1. The locking element 9 of the closure cap 1 shown here has a foot-shaped cross-section, is located at the lowest edge of the tamper-evident band 5 and thus also below the locking elements 7 of the closure cap 1, and projects radially inwards by approximately 2 / 3 of the radial thickness of the tamper-evident band 5 beyond the inside of the tamper-evident band 5. The second stop surface 10 of the locking element 9 has an inclination in the downward axial direction, i.e., in the axial direction pointing from the lid section 2 towards the container 11, and rounded edges, resulting in an overall S-shaped and simultaneously downwardly inclined second stop surface 10.

[0058] The blocking element 9, arranged on the tamper strap 5, is axially opposed on the side of the container 11 by a projection located on the container neck. This projection constitutes a blocking element 16 of the container 11. The blocking element 16 of the container 11 shown here has a trapezoidal cross-section, with the second stop surface 17 of the blocking element 16 of the container 11 being located on the side of the blocking element 16 facing away from the pouring opening 12 and extending substantially perpendicular to the outside of the container neck. The surface section 20 of the blocking element 16 on the side of the blocking element 16 axially opposite the second stop surface 17 has an outward and downward inclination (leading away from the pouring opening 12) at an angle of approximately 30 degrees – measured with respect to a plane perpendicular to the container neck axis. Figure 2represented by the auxiliary line 99 - , where the inclination begins at an outer radius of the container neck that is smaller than the minimum inner radius of the blocking element 9 of the closure cap 1.

[0059] The curved and inclined design of the second stop surface 10 of the locking element 9 of the closure cap 1 and the downwardly and outwardly inclined upper surface section 20 of the locking element 16 of the container 11 cause the locking element 9 to slide along the inclined surface section 20 as if on a track when the closure cap 1 is first applied (screwed on or slipped over) to the container neck. This results in a gradual and non-sudden radial outward deformation of the locking element 9 of the closure cap 1 and the associated tamper-evident band 5. The surface section 20 thus constitutes a leading chamfer within the meaning of the present invention.The rounded edges of the blocking element 9 ensure that the shear forces occurring during deformation are distributed as evenly as possible across the areas of the blocking element 9 and the sealing band 5, thus minimizing the risk of unintentional cracks and breaks due to deformation when the cap is first applied. The goal in this case is elastic deformation.

[0060] In the position of the closure cap 1 and container 11 relative to each other shown here, a gap 18 exists between the two second stop surfaces 10 and 17. If the in the Figures 1 and 2When the illustrated combination 1, 11 is rotated 180 degrees from the illustrated position after the closure cap 1 has been unscrewed from the container neck 11 for the first time, the two second stop surfaces 10 and 17 engage, thereby preventing the tamper strap 5 from detaching from the container neck. This is the basic principle of the present invention.

[0061] In the Figure 3 The locking cap 1 is shown again separately in a perspective view from a low angle. This illustration shows that twelve locking elements 9 are provided at equidistant intervals around the circumference of the warranty band 5, each extending over a distance of 1 / 30 of the total circumference of the warranty band 5. Twelve locking elements 7 are also arranged at equidistant intervals above the locking elements 9 on the warranty band 5. This series of locking elements 7 is also referred to as a toothed ring.

[0062] Figure 4shows the one for the closure cap 1 from Figure 3 corresponding container neck. The blocking element 16 of the container 11 is designed as a circumferential ring, so that for any rotational position it is guaranteed that the blocking elements 9 of the closure cap 1 can engage with the blocking element 16 of the container neck. Also in Figure 4 A toothed ring with detent elements 7 and corresponding first stop surfaces 15, located above the blocking element 16, can be identified. These first stop surfaces 15 engage with the first stop surfaces 8 of the detent elements 7 of the cap 1 when the closure cap 1 is unscrewed from the container neck for the first time, in order to block a rotational movement of the tamper-evident band 5 in the opening direction and thus prevent the breakable bridges 6 from breaking and the tamper-evident band 5 from the remaining components of the closure cap 1. Reference symbol list

[0063] 1 Cap 2 Lid section 3 Cap body 4 Internal thread 5 Warranty strap 6 Tearable bridges 7 Cap locking element 8 First stop surface (of the cap locking element) 9 Warranty strap locking element (of the cap) 10 Second stop surface (of the cap locking element) 11 Container (container neck) 12 Pouring opening 13 External thread 14 Container neck locking element 15 First stop surface (of the container neck locking element) 16 Container neck locking element (of the container) 17 Second stop surface (of the container neck locking element) 18 Gap 19 Angle 20 Surface section / lead-in chamfer 50 Closure axis 51 Container axis 99 Guideline for showing an angle Magnification window

Claims

1. A closure cap (1) with a lid section (2) and a cap skirt (3), wherein the cap skirt (3) has an internal thread (4) and defines a closure axis (50), so that the closure cap (1) can be screwed onto an external thread (13) of a container neck, wherein a circumferential guarantee band (5) is arranged on a rim of the cap skirt (3) facing away from the lid portion (2) and is connected to the cap skirt (3) via a plurality of tearable bridges (6), wherein at least one latching element (7) is arranged on the inside of the guarantee band (5), wherein the latching element (7) extends inwards from the guarantee band (5), wherein the latching element (7) has a first abutment surface (8) with a surface normal arranged at least partially tangentially to the cap skirt (3), so that the first abutment surface (8) can be brought into engagement with a first abutment surface (15) of the container neck in an assembled state of the closure cap (1) with a container (11) having the container neck, wherein a holding torque acting counter to an opening direction of the closure cap (1) is exerted on the guarantee band (5) by the engagement of the two first abutment surfaces (8, 15) when the closure cap (1) is rotated in the opening direction for the first time, wherein a blocking element (9) is arranged on the guarantee band (5), wherein the blocking element (9) has a second abutment surface (10) with a surface normal pointing at least partially in the axial direction, so that the second abutment surface (10) can be brought into engagement with a second abutment surface (17) of the container neck in an assembled state of the closure cap (1) with the container (11), wherein the engagement of the two second abutment surfaces (10, 17) exerts a holding force acting in the axial direction on the guarantee band (5) when the container (11) is tilted for pouring out a filling material wherein the blocking element (9) is a radially inwardly projecting projection extending from the guarantee band (5), wherein the projection is designed in one piece with the guarantee band (5), wherein the blocking element (9) is arranged on the side of the guarantee band (5) facing away from the cover section (2) when viewed from the latching element (7), wherein at least two radially inwardly projecting projections are provided as blocking elements (9) on the guarantee band (5).

2. The closure cap (1) according to claim 1, wherein the plurality of projections designed as blocking elements protrude radially inwards by 0.3 to 1 mm relative to a surface of the guarantee band adjacent to the projections.

3. The closure cap (1) according to one of the preceding claims, wherein 8 to 16 and particularly preferably 10 to 14 radially inwardly projecting projections are provided as blocking elements (9) on the guarantee band (5).

4. The closure cap (1) according to one of the preceding claims, wherein a projection designed as a blocking element has at least one rounded edge running in the circumferential direction, wherein the rounded edge preferably has a radius of curvature of 0.6 mm to 1.2 mm.

5. The closure cap (1) according to one of the preceding claims, wherein one of the blocking elements (9) on its side facing away from the lid portion (2) or an additional guiding element arranged on the side of the blocking element (9) facing away from the lid portion (2) has a guiding bevel (20) with a surface normal on its side facing away from the lid portion (2), wherein the surface normal of the guiding bevel is oriented away from the lid section (2) in the axial direction and inwards in the radial direction, wherein the guiding bevel (20) is suitable for causing a deformation of the guarantee band (5) when the closure cap (1) is first attached to a container (11).

6. The closure cap (1) according to one of the preceding claims, wherein the closure cap has a diameter of 50 mm to 80 mm.

7. The closure cap (1) according to one of the preceding claims, wherein one of the blocking elements has a rectangular or trapezoidal cross-section in a cross-sectional plane extending in the axial and a radial direction.

8. A combination of a closure cap (1) and a container (11), wherein the closure cap has a cap section (2) and a cap skirt (3) with an internal thread (4) and the container (11) has a container neck with an external thread (13), so that the closure cap (1) can be screwed onto the external thread (13) of the container neck, wherein the cap skirt (3) defines a closure axis (50) and the container neck defines a container axis (51), wherein the closure axis (50) and the container neck axis (51) are congruent in the assembled state of the closure cap (1) and the container (11), wherein a circumferential guarantee band (5) is arranged on a rim of the cap skirt (3) facing away from the lid portion (2), which guarantee band is connected to the cap skirt (3) via a plurality of tearable bridges (6), wherein at least one latching element (7) is arranged on the inside of the guarantee band (5), wherein at least one further latching element (14) is arranged on the container neck on a side of the external thread (13) facing away from the pouring opening (12), wherein the latching element (7) of the closure cap (1) has a first abutment surface (8) with a surface normal arranged at least partially tangentially to the cap skirt and the latching element (14) of the container neck (11) has a first abutment surface (15) so that the latching elements are designed and arranged in such a way that, in an assembled state of the closure cap (1) and container (11), the first abutment surface (8) of the latching element (7) of the closure cap (1) can be brought into engagement with the first abutment surface (15) of the latching element (14) of the container (11), wherein a holding torque acting counter to the opening direction of the closure cap (1) is exerted on the guarantee band (5) by the engagement of the two first abutment surfaces (8, 15) when the closure cap (1) is rotated in the opening direction for the first time, wherein a blocking element (9) is arranged on the guarantee band (5) and a blocking element (16) is arranged on the container neck, wherein the blocking element (9) of the closure cap (1) has a second abutment surface (10) with a surface normal pointing at least partially in the axial direction and the blocking element (9) of the closure cap and the blocking element (16) of the container (11) are designed and arranged in such a way that in an assembled state of the closure cap (1) and container (11), the second abutment surface (10) of the blocking element (9) of the closure cap (1) can be brought into engagement with a second abutment surface (17) of the blocking element (16) arranged on the container neck, wherein the engagement of the two second abutment surfaces (10, 17) exerts a retaining force acting in the direction of the closure and container neck axis (50, 51) on the guarantee band (5) when the container (11) is tilted for pouring out a filling material, wherein the blocking element (9) of the closure cap is a radially inwardly projecting projection extending from the guarantee band (5), wherein the projection is designed in one piece with the guarantee band (5), wherein the blocking element (9) of the closure cap is arranged on the side of the guarantee band (5) facing away from the cover section (2) when viewed from the latching element (7), wherein at least two radially inwardly projecting projections are provided as blocking elements (9) on the guarantee band (5).

9. The combination according to claim 8, wherein the blocking element (16) of the container is a radially outwardly projecting projection of the container neck extending from the container neck.

10. The combination according to claim 9, wherein the projection designed as a blocking element of the container (11) projects radially outwards by 0.3 to 1 mm beyond the surface of the container neck adjoining the projection.

11. The combination according to one of claims 8 to 10, wherein the blocking element (16) of the container (11) is arranged on the side of the container neck facing away from the pouring opening (12), as viewed from the latching element (14).

12. The combination according to claim 9 or according to one of claims 10 or 11, provided that these are related back to claim 9, wherein at least two, preferably 8 to 16 and particularly preferably 10 to 14 radially outwardly projecting projections are provided as blocking elements (16) on the container neck.

13. The combination according to claim 12, wherein the blocking elements (16) of the container (11) are arranged equidistantly in the circumferential direction.

14. The combination according to any one of claims 8 to 11, wherein the blocking element (16) of the container (11) is a projection extending in circumferential direction over the entire circumference and projecting radially outwards.

15. The combination according to any one of claims 8 to 14, wherein the blocking element (16) of the container (11) has a guiding bevel (20) with a surface normal on its side closest to the pouring opening (12), wherein the surface normal of the guiding bevel (20) is orientated in the axial direction towards the pouring opening (12) and in the radial direction towards the outside, wherein the guiding bevel (20) is suitable for causing a deformation of the guarantee band (5) when a closure cap (1) with a guarantee band (5) is attached to the container (11) for the first time.