Container closure with tamper-evident ring and method of assembling such container closure

Abstract

The invention relates to a container closure (10) comprising a base portion (16) extending around a reference axis (100) of the container closure (10), a cover portion (18) covering a drinking opening (30) in the container closure (10) in a closed position and leaving the drinking opening in the container closure (10) uncovered in an open position, and a tamper-evident ring (14) separate from the cover portion (18) and the base portion (16) and being form-fittingly connected to the cover portion (18) and being hookingly connected to the base portion (14). The tamper-evident ring (18) has an annular flange (56) not being radially covered by the base portion (16) and extending into an annular recess (54) of a radially outwardly directed outer wall (34) of the cover portion (18).

Description

Technical Field

[0001] This invention relates to a container closure having a base portion extending about a reference axis of the container closure, a cap portion covering the mouth / opening of the base portion in a closed position and opening the mouth of the base portion in an open position, and a tamper-evident ring separate from the cap portion and the base portion, the tamper-evident ring being designed to provide a consumer with visual information about whether the container closure has been opened. The invention also relates to a method for assembling such a container closure. Background Technology

[0002] The type of container closure mentioned at the beginning of document WO2015 / 049066A1 is known, in which the tamper-evident ring is covered by a cap portion and a base portion in the closed position and is visible only through the transparent wall of the cap portion. The base portion, cap portion, and hinge together form an injection-molded part in the open position. The part moves to the closed position before the tamper-evident ring is inserted through an opening in the base portion. After the tamper-evident ring finds its position, the nozzle is inserted into the opening and assembled with the base portion.

[0003] A disadvantage of this type of closure is the requirement to use transparent materials, such as transparent polypropylene, for the injection-molded base and cap portions. Other materials, such as opaque polypropylene or high-density polyethylene (HDPE), are excluded. One drawback of polypropylene closures is the generation of dust due to friction between the manufactured closures and the belt feeders on the filling line.

[0004] It is also not possible to choose two different materials or two different colors for the base and the lid. For the transparent lid, the contents of the container are exposed to light through the nozzle and the bottom of the lid, which is undesirable in some cases.

[0005] Furthermore, quality control becomes more complex after production, as it becomes impossible to access the inside of the anti-theft ring after installation.

[0006] The container closure must be made of at least three separate parts, especially since the tamper-evident ring must be installed through an opening in the base portion. Therefore, it is impossible to provide a range of container closures that offer consumers the same visual information about the tamper-proof state of the container contents, and at least some of these models are formed from only two separate parts. Summary of the Invention

[0007] The object of the present invention is to provide a container closure of the above type that overcomes at least one of the aforementioned disadvantages of the prior art.

[0008] In a container closure, the container closure has a base portion extending around a reference axis of the container closure, a cap portion covering the drinking opening of the container closure in a closed position and keeping the drinking opening of the container closure open in an open position, and a tamper-evident ring separate from the cap portion and the base portion. The tamper-evident ring is form-fitted to the cap portion and hooked to the base portion, and has a fracture zone that breaks when the cap portion is opened, causing irreversible and visible changes in the container closure. This is achieved by the tamper-evident ring for form-fitting connection to the cap portion having an annular flange that is not radially covered by the base portion and extends in an annular groove on the radially outward outer wall of the cap portion.

[0009] By applying the annular flange of the tamper-evident ring to the uncovered outer wall of the cover portion, which can be made of opaque material if desired. A variety of materials and colors are available. The colors of the cover portion and the tamper-evident ring can be selected to produce a desired color contrast, such as complementary colors.

[0010] The tamper-evident ring can be placed on the cover portion in the closed position by elastic deformation until the annular flange enters the annular groove and the tamper-evident ring hooks onto the base portion.

[0011] According to a preferred embodiment, the tamper-evident ring has an indicator portion that engages behind a shoulder of a base portion for hook-like connection to the base portion, wherein a break zone is located between a flange and the indicator portion. Preferably, the base portion has a peripheral wall surrounding the indicator portion and a cavity within the base portion. When the cover portion is opened and the break zone breaks, the indicator portion can fall into the lower region of the cavity due to gravity. Where appropriate, the wall may have a radially outward-facing window configured such that the indicator portion is not visible through the window before the break zone breaks, but only becomes visible through the window after the break zone breaks at the lower part of the cavity.

[0012] According to a preferred embodiment, the indicator portion protrudes radially outward, and the shoulder portion protrudes radially inward. Therefore, there is no overlap between the outward-facing indicator portion and the inward-facing flange, which facilitates axial demolding of the tamper-evident ring. Another advantage of this embodiment is that the hook-like connection between the indicator portion and the shoulder does not weaken as the cover portion begins its rotational movement from the closed position.

[0013] According to a preferred embodiment of the invention, the base portion is connected to the cover portion via a hinge.

[0014] The lid portion can be designed as an integral part with the hinge and base portion to form a two-piece container closure.

[0015] Optionally, the base portion may have an anchor ring with an annular groove engaging the base portion, wherein the anchor ring is integrally designed with the hinge and cover portions. The container closure consists of three parts, which may be made of different materials. The fracture zone is preferably axially located between the annular flange and the anchor ring. The indicator portion is preferably axially located between the fracture zone and the anchor ring. The cavity is preferably axially located between the indicator portion and the anchor ring.

[0016] The hook-like connection and hinge between the tamper-evident ring and the base portion are preferably located on the same side of the transverse plane extending through the annular flange. Alternatively, it is also conceivable that the hinge can be integrally designed with the tamper-evident ring.

[0017] According to a preferred embodiment, the base portion has connection points, particularly threads, for connection to the container neck. However, other connection methods are conceivable, such as circumferentially positioned flanges or a series of resilient locking hooks distributed around the circumference of the base portion and engaging behind the circumferentially positioned flanges of the container neck when mounted on the container neck.

[0018] The base portion may have a sealing flange, preferably radially outward, to provide a tight connection with the container neck.

[0019] The base portion may have a nozzle area that forms the drinking opening of the base portion.

[0020] Optionally, the container closure may have a pouring portion separate from the base portion, forming a pouring area and a drinking opening of the container closure, wherein the pouring portion is covered by the cap portion in the closed position.

[0021] The fracture zone extends around the reference axis of the container closure at an angle preferably greater than 90°, more preferably greater than 180°, and may optionally have a brittle ridge, fracture line, or fracture band.

[0022] The cover portion has a bottom that closes the opening of the base portion. Preferably, the outer wall of the cover portion gradually tapers from the groove to the bottom.

[0023] The present invention also relates to a method for assembling a container closure according to the invention, wherein a tamper-evident ring is placed on a cap portion in the closed position by elastic deformation until the annular flange enters the annular groove and the tamper-evident ring hooks onto the base portion. Attached Figure Description

[0024] Embodiments of the present invention will be described with reference to the accompanying drawings. It is shown that:

[0025] - Figure 1 A cross-sectional view of the container closure in the closed position in front of the first opening according to the first embodiment of the present invention;

[0026] - Figure 2: By horizontal Figure 1 A second longitudinal section extending from the cross section, a cross-sectional view of the container closure according to the first embodiment in the closed position in front of the first opening;

[0027] - Figure 3 According to the first embodiment, the injection-molded portion of the container closure is in the open position immediately after being ejected from the injection mold.

[0028] - Figure 4 : Figure 3 Top view of the injection-molded part;

[0029] - Figure 5 : A perspective view of the tamper-evident ring of the container closure according to the first embodiment;

[0030] - Figure 6 : Figure 4 A cross-sectional view of the molded part after it has been placed in the closed position, and Figure 5 A cross-sectional view of the tamper-evident ring before it is placed on the closed molded part;

[0031] - Figure 7 : A cross-sectional view of the container closure in the open position after the first opening according to the first embodiment;

[0032] - Figure 8 : A cross-sectional view of the container closure in the closed position after the first opening according to the first embodiment;

[0033] - Figure 9 A cross-sectional view of the container closure in the closed position in front of the first opening according to the second embodiment of the present invention;

[0034] - Figure 10 A cross-sectional view of the container closure in the closed position after the first opening, according to the second embodiment of the present invention.

[0035] - Figure 11 A cross-sectional view of the container closure in the closed position in front of the first opening according to the third embodiment of the present invention;

[0036] - Figure 12 Before assembly, according to Figure 4 The third embodiment together forms a cross-sectional view of each injection-molded component of the container closure;

[0037] - Figure 13 Perspective view of three parts of a container closure according to a fourth embodiment of the present invention;

[0038] - Figure 14 A cross-sectional view of three parts of a container closure according to a fourth embodiment of the present invention;

[0039] - Figure 15 A cross-sectional view of the container closure in the closed position in front of the first opening according to the fourth embodiment of the present invention;

[0040] - Figure 16 : By horizontal Figure 15 A second longitudinal section extending from the cross section, a cross-sectional view of the container closure according to the fourth embodiment in the closed position in front of the first opening;

[0041] - Figure 17 : A cross-sectional view of the container closure in the closed position after the first opening according to the fourth embodiment;

[0042] - Figure 18 : A perspective view of the container closure in the closed position after the first opening according to the fourth embodiment;

[0043] - Figure 19 According to the cross-sectional view of the container closure of the fifth embodiment, it is in the closed position in front of the first opening;

[0044] - Figure 20 : A perspective view of the container closure in the closed position after the first opening according to the fifth embodiment.

[0045] In all the accompanying drawings, individual reference numerals denote the same or similar elements. Detailed Implementation

[0046] Reference Figures 1 to 8 According to the present invention, the container closure of the first preferred embodiment is indicated by reference numeral 10. The closure 10 is defined as being installed at the neck of the container.

[0047] In this embodiment, the container closure 10 consists of two separate injection-molded components: a closure component 12 and a tamper-evident ring 14. The closure component 12 may be made of plastic or other materials compatible with the container contents. Polymers are preferred, particularly thermoplastics such as polyethylene or polypropylene. Specifically, opaque materials, such as opaque polypropylene or high-density polyethylene (HDPE), may be used. The tamper-evident ring 14 may be made of plastic, particularly opaque plastic, preferably having a color that contrasts with the desired color of the closure component.

[0048] Figure 3 and 4 The closure 12, shown separately, includes a base portion 16, a cover portion 18, and a hinge 20 connecting the base portion 16 to the cover portion 18. The hinge 20 is shown here as a snap-fit ​​hinge and allows the cover portion 18 to rotate around a point perpendicular to the ground. Figure 1 The cross-section extends the pivot rotation. Other types of hinges are also applicable. For example... Figure 3 and4 As shown, in the open position, the base portion 16, the cover portion 18, and the hinge 20 are cast together as a single unit.

[0049] The base portion 16 has an attachment region 22 surrounding a reference axis 100 of the container closure 10, and means for fastening to the container neck, in this embodiment, a thread 24. A sealing skirt 26 is also present in the attachment region, designed to engage the interior of the container neck when the container closure 10 is placed on the container neck. The sealing skirt 26 may have a circumferential flange or a curved portion. In this embodiment, the base portion 16 also has a nozzle region 28 that projects axially in the direction opposite to the connection region, surrounding the drinking opening 30.

[0050] The cover portion 18 includes a bottom 32, an outer wall 34 surrounding an inner wall surface 36 of the bottom 32, and gripping protrusions 38 extending radially outward from the outer wall 34.

[0051] The bottom 32 can be flat or curved. An annular sealing skirt 40 extends from the inner wall surface 36 of the bottom 32 and is surrounded by an outer wall 34 having a radial distance. The sealing skirt 40 is designed to engage the interior of the drinking opening 30 of the pouring area 28 when the cap portion 18 is in the closed position. The sealing skirt 40 can have a circumferential flange or a curved portion.

[0052] The outer wall 34 has a lower cylindrical or slightly conical edge region 42, which, in the closed position of the closure member 12, radially abuts the radially outwardly pointing cylindrical or slightly conical support surface 44 in the connection region between the nozzle region 28 and the connection region 22 of the bottom 14. Therefore, the cap portion 18 in the closed position closes the pouring area 28. If desired, the edge region 42 and the sealing skirt 40 ensure that the space closed by the cap portion 18 and the base portion 14 is liquid-tight and gas-tight. This facilitates the use of the closure member for aseptic filling.

[0053] The support surface 44 is partially surrounded by a curved peripheral wall 46 that projects axially from the attachment region 22 in a direction opposite to the thread 24 and extends around the reference axis 100 of the container closure 10 at an angle preferably greater than 90°, and in this example greater than 180°. The support surface 44 and the peripheral wall 46 are radially spaced apart and define an arcuate cavity 48 into which, in the closed position, the lower edge region 42 of the outer wall 34 of the cover portion 18 enters in the arcuate cavity 48. Figure 4 As shown, the arc-shaped cavity 48 is defined circumferentially by two stops 50. The peripheral wall 46 has a radially inwardly projecting shoulder 52, which has a central blocking portion 53, thereby... Figure 2 As can be seen in the cross-sectional view, but... Figure 1It is not visible in the cross-sectional view.

[0054] The outer wall 34 of the cover portion 18 has a radially outwardly pointing annular groove 54, which is preferably located in the central region of the cover portion 18, axially located between the bottom 32 and the lower edge region 42, and in the closed position, the annular groove is not covered by the curved peripheral wall 46 of the base portion 16.

[0055] Figure 5 and 6 The tamper-evident ring 14 shown has a radially inwardly projecting annular closed flange 56, an arc-shaped indicator portion 58, and a fracture zone 60 located between the flange 56 and the indicator portion 58. The fracture zone 60 may preferably have a fragile ridge or fracture line, or possibly a fracture band. The indicator portion 58 has a radially outwardly projecting hook-shaped portion 62, which has a central blocking portion 63.

[0056] The container closure 10 is manufactured as follows. Figure 3 and Figure 4 The opening position, the closing component 12 is produced by injection molding, and in the first assembly step, it is placed... Figure 6 The closed position. In the second assembly step, the tamper-evident ring 14 is placed on the cover portion 18 by elastic deformation until the annular flange 56 penetrates the annular groove 54 and forms a shape-fit connection with the cover portion 18, while the indicator portion 58 partially penetrates the cavity 48, and the hook portion 62 engages behind the shoulder 52 of the peripheral wall 46 of the base portion 16, as shown. Figure 1 and 2 As shown. The center blocking portion 63 of the indicator portion 58 matches the center blocking portion 53 of the shoulder portion 52 to accurately indicate the position of the indicator portion in the circumferential direction. According to a variant, the blocking portions 53 and 63 may be omitted if necessary.

[0057] The indicator portion 58 is partially located in the upper region of the cavity 48, radially between the peripheral wall 46 and the lower edge region 42 of the cover portion 18, and circumferentially between the stops 50, and axially protrudes beyond the cavity 48 to remain partially radially visible in front of the first opening. The hinge 20 and the indicator portion 58 are located on the same side of the transverse plane 200 extending through the annular flange 56.

[0058] When the container closure 10 first from Figure 1 and Figure 2 Move the closing position to Figure 7 When in the open position, the indicator portion 58 is held by the shoulder 52, and the flange 56 is held by the groove 54. The fracture zone 60 breaks, while the flange 56 remains in the groove 54, and the indicator portion 58 falls into the lower region of the cavity 48 due to gravity.

[0059] When the container closure 10 returns after the first opening Figure 8 When in the closed position, the indicator portion 58 remains in the lower region of the cavity 48, where it is completely covered by the peripheral wall 46 of the base portion 16. This ensures that irreversible and visible changes to the container closure 10 are prevented. The indicator portion 58 remains recessed within the cavity 48.

[0060] According to the second embodiment, the container closure 10 is in Figure 9 and 10 As shown, and differing only from the first embodiment, the peripheral wall 46 of the base portion 16 of the radially outwardly fixed cavity 48 has a window 64 in its lower region. After the indicator portion 58 falls into the lower region of the cavity 48 upon initial opening, it becomes visible through this window. In this embodiment, the hook portion 62 of the indicator portion 58 has no blocking portion and engages behind the shoulder portion 52 of the peripheral wall 46, which also lacks a central blocking portion.

[0061] According to the third embodiment, the container closure 10 is in Figure 11 and 12 As shown, and differing from the first embodiment, the container closure 10 has a nozzle 128 separate from the closure member 12. The nozzle 128 is mounted within the connection region 22 of the base portion 16 and abuts against the shoulder 68 of the connection portion, the shoulder 68 having a sealing flange 70. This nozzle 128 forms the nozzle region 28 of the container closure. The installation of the nozzle 128 can be performed before, after, or simultaneously with the installation of the tamper-evident ring 14.

[0062] According to the fourth embodiment, the container closure 10 is in Figures 13 to 18 As shown, it includes three separate components: a base component 12.1, a head component 12.2, and a tamper-evident ring 14, wherein... Figures 15 to 18 In the assembled state, the base component 12.1 and the head component 12.2 form component 12.3, which is substantially the same in form and function as the closed component 12 of the first embodiment.

[0063] The base component 12.1 includes a connection portion 22 having threads 24 for connection to the neck of the container, a pouring portion 28 forming a drinking opening 30 of the container closure 10, and a curved peripheral wall 146 that projects axially from a flat upper support surface 122 of the attachment region 22 in a direction opposite to the threads 24 and extends about a reference axis 100 of the container closure 10 by an angle preferably greater than 180°, in this example greater than 270°. Two circumferentially opposite ends of the peripheral wall 146 form two lateral stops 150 that circumferentially define a recess 120 of the base component. The peripheral wall 146 has radially inwardly projecting shoulders 152 that, together with the upper support surface 122 of the attachment region 22, define a groove 148.

[0064] The head part 12.2 has a cover portion 18, a hinge 20, and an anchor ring 210 connected to the lower extension 212 of the hinge.

[0065] The anchor ring 210 includes an annular flat lower support surface 222, an annular flat upper support surface 224, and an arc-shaped anchor protrusion 248. Their dimensions correspond to the dimensions of the support surface 122 or the peripheral wall 146 and the shoulder 152, respectively, such that after installation, the anchoring protrusion 248 behind the shoulder 152 forms an engagement or frictional engagement while resting on the support surface 122 over a large area. In this way, there is no possibility of movement between the anchor ring 210 and the base component 12.1, and the anchor ring 210 and the base component 12.1 together form a base portion 16 having the same external shape as the base portion 16 of the first embodiment.

[0066] Hinge 20 is shown here as a snap-on hinge and allows the cover portion 18 to rotate perpendicular to... Figure 16 The pivot 300, extending in cross-section, pivots. The offset portion 212 of the hinge 20 is located in the recess 120 on the support surface 122 and is radially located on the support surface 124 of the recess 120, and circumferentially held against the lateral stop 150. The pivot axis 300 is the line of intersection between the transverse plane 400 and the orthogonal radial plane 500, which extends between the support surface 122 of the cover portion 18 in the closed position and the annular groove 54, and the orthogonal radial plane 500 extends parallel to the reference axis 100 of the base portion 16 and is farther from the reference axis 100 than the outer surface of the peripheral wall 146.

[0067] After installation, the head component 12.2 and the base component 12.1 together form assembly 12.3. Assembly 12.3 has the same shape and function as the closure component 12 of the first embodiment, except that the two components 12.1 and 12.2 can be made of two different materials or have different colors. For example, the head component 12.2 can be made of transparent or opaque polypropylene (PP), and the base component 12.1 can be made of high-density polyethylene (HDPE).

[0068] The anchor ring 210 has a curved peripheral wall 46 that extends around the reference axis 100 of the container closure 10 at an angle preferably greater than 180°, and in this example greater than 270°. The peripheral wall 46 has a radially inwardly projecting shoulder 52 that has the same shape and function as the shoulder 52 in the first embodiment, and, after installation, is radially opposite to the lower edge region 42 of the outer wall 34 of the cover portion 18, and together with the latter and the upper support surface 224 defines a cavity 48.

[0069] The anti-theft ring 14 is the same as the anti-theft ring in the first embodiment, and a detailed description can be found in the first embodiment.

[0070] The container closure 10 is manufactured as follows. Three components 12.1, 12.2, and 14 are manufactured separately via injection molding, with the head component 12.2 located at... Figure 13 The open position. In the first assembly step, the cover portion 18 enters the closed position. Then, the folded head part 12.2 is placed on the base part 12.1 until the anchor protrusion 248 of the anchor ring 210 is located behind the shoulder 52. In the third assembly step, the tamper-evident ring 14 is placed on the cover portion 18 by elastic deformation until the annular flange 56 penetrates the annular groove 54 and forms a form-fit connection with the cover portion 18, while the indicator portion 58 partially penetrates the cavity 48, and the hook portion 62 engages behind the shoulder 52 of the peripheral wall 46 of the anchor ring 16, as... Figure 15 and 16 As shown.

[0071] If necessary, the order of the three assembly steps can be changed. For example, after the open head part 12.2 is placed on the base part 12.1, the cover part 18 can be placed in the closed position. If needed, the tamper-evident ring 14 can be placed on the open head part 12.2.

[0072] After installation, the indicator portion 58 is partially located in the upper region of the cavity 48, radially positioned between the peripheral wall 46 and the lower edge region 42 of the cover portion 18, and partially located outside the cavity 48, such that the indicator portion remains partially radially visible in front of the first opening. When the container closure 10 first... Figure 15 and 16When the container closure 10 moves from the closed position to the open position, the indicator portion 58 is held by the shoulder 52, and the flange 56 is held by the groove 54. The break section 60 breaks, while the flange 56 remains in the groove 54, and the indicator portion 58 falls into the lower region of the cavity 48 due to gravity. When the container closure 10 returns to the open position after the first opening... Figure 17 and 18 When in the closed position, the indicator portion 58 remains in the lower region of the cavity 48 on the upper support surface 224 of the anchor ring 210, where it is completely covered by the peripheral wall 46 of the base portion 16. This ensures that irreversible and visible changes to the container closure 10 are prevented. The indicator portion 58 remains recessed within the cavity 48.

[0073] Figure 19 and 20 Implementation examples and Figures 13 to 18 The only difference in the embodiment is that the peripheral wall of the anchor ring 210 has a recess or window 346, which, if desired, corresponds to the recess 446 of the peripheral wall 146 of the base member 12.1, and is present before separation in the fracture zone 60. Figure 19 Above), cavity 58 and after separation in fracture zone 60 ( Figure 20 (Above), the indicator portion 58 becomes visible through the recess or window.

[0074] Other variations are also possible. The external tamper-evident ring 12 according to the invention can be applied to container closures having a closing member 12 and a nozzle 128, wherein the closing member 12 has a base portion 16 and a cap portion 18 for injection in the closed position, and the nozzle 128 is inserted into the closed closing member 12. It can also be used for container closures without hinges, particularly so-called push-pull container closures.

Claims

1. A container closure (10) comprising a base portion (16) extending about a reference axis (100) of the container closure (10), a cap portion (18) covering a drinking opening (30) of the container closure (10) in a closed position and opening the drinking opening (30) of the container closure (10) in an open position, and a tamper-evident ring (14) composed of components independent of the cap portion (18) and the base portion (16), the tamper-evident ring (14) being form-fitted to the cap portion (18) and hooked onto the base portion (16), and having a fracture zone (60) that breaks when the cap portion (18) is opened, causing an irreversible and visible change in the container closure (10), characterized in that, The tamper-evident ring (14) for shaped connection with the cover portion (18) has an annular flange (56) which is not radially covered by the base portion (16) and extends into the annular groove (54) of the radially outwardly pointing outermost wall (34) of the cover portion (18).

2. The container closure (10) according to claim 1, characterized in that, The anti-theft ring (14) has an indicator portion (58) for hooking onto the base portion (16) and engaging behind the shoulder (52) of the base portion, wherein the break zone (60) is located between the flange (56) and the indicator portion (58).

3. The container closure (10) according to claim 2, characterized in that, The base portion (16) has a peripheral wall (46) surrounding the indicator portion (58) and the cavity (48) of the base portion, wherein, when the cover portion (18) is opened and the fracture zone (60) is broken, the indicator portion (58) can fall into the lower region of the cavity (48) due to gravity.

4. The container closure according to claim 3, characterized in that, The peripheral wall (46) has a radially outwardly pointing window (64) configured such that the indicator portion (58) is visible through the window (64) at the lower part of the cavity only after the fracture zone (60) has fractured.

5. The container closure (10) according to any one of claims 2 to 4, characterized in that, The indicator portion (58) protrudes radially outward, and the shoulder portion (52) protrudes radially inward.

6. The container closure (10) according to any one of claims 1 to 4, characterized in that, The base portion (16) is connected to the cover portion (18) via a hinge (20).

7. The container closure (10) according to claim 6, characterized in that, The cover portion (18) is integrated with the hinge (20) and the base portion (16).

8. The container closure (10) according to claim 6, characterized in that, The base portion (16) has a base component (12.1) and an anchor ring (210) engaged in an annular groove (148) of the base portion (16), the anchor ring (210) being integrally formed with the hinge (20) and the cover portion (18).

9. The container closure (10) according to claim 8, characterized in that, The fracture zone (60) is located axially between the annular flange (56) and the anchor ring (210).

10. The container closure (10) according to claim 1, characterized in that, The anti-theft ring (14) has an indicator portion (58) for hooking onto a base portion (16) and engaging behind a shoulder (52) of the base portion, wherein a break zone (60) is located between the flange (56) and the indicator portion (58), the base portion (16) being connected to the cover portion (18) via a hinge (20); the base portion (16) has a base member (12.1) and an anchor ring (210) engaging in an annular groove (148) of the base portion (16), the anchor ring (210) being integrally formed with the hinge (20) and the cover portion (18); the break zone (60) is axially located between the annular flange (56) and the anchor ring (210); and the indicator portion (58) is axially located between the break zone (60) and the anchor ring (210).

11. The container closure (10) according to claim 10, characterized in that, The base portion (16) has a peripheral wall (46) surrounding the indicator portion (58) and the cavity (48) of the base portion, wherein, when the cover portion (18) is opened and the fracture zone (60) is fractured, the indicator portion (58) can fall into the lower region of the cavity (48) due to gravity, the cavity (48) being axially located between the indicator portion (58) and the anchor ring (210).

12. The container closure (10) according to claim 6, characterized in that, The hook-shaped connection between the anti-theft ring (14) and the base portion (16) and the hinge (20) are located on the same side of the transverse plane (200) extending through the annular flange (56).

13. The container closure (10) according to any one of claims 1 to 4, characterized in that, The base portion (16) has a connecting portion (22) for connecting to the neck of the container.

14. The container closure (10) according to claim 13, characterized in that, The connecting portion (22) has a thread (24) that connects to the neck of the container.

15. The container closure (10) according to any one of claims 1 to 4, characterized in that, The base portion (16) has a sealing flange (26).

16. The container closure (10) according to claim 15, characterized in that, The sealing flange (26) is oriented radially outward.

17. The container closure (10) according to any one of claims 1 to 4, characterized in that, The base portion (16) has a pouring portion (28) that forms the drinking opening (30) of the container closure (10).

18. The container closure (10) according to any one of claims 1 to 4, characterized in that, It has a nozzle (128) separate from the base portion (16), the nozzle (128) forming a drinking opening (30) of the container closure (10).

19. The container closure (10) according to any one of claims 1 to 4, characterized in that, The cover portion (18) has a bottom (32), and the outer wall of the bottom (32) gradually tapers from the annular groove (54) toward the bottom (32).

20. The container closure (10) according to any one of claims 1 to 4, characterized in that, The cover portion (18) is made of an opaque material.

21. A method for assembling a container closure (10) according to any one of claims 1 to 20, characterized in that, The tamper ring (14) is placed on the cover portion (18) in the closed position by elastic deformation until the annular flange (56) passes through the annular groove (54) and the tamper ring (14) hooks onto the base portion (16).

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