Sealing cap for a container closure, and container closure

Abstract

The invention relates to a sealing cap (24) made of a plastic material for a container stopper (23) inserted into a bung neck (20) of a container (13), wherein the sealing cap has a cover disc (25) having a fastening ring (30) which is connected to an underside (29) of the cover disc, wherein the fastening ring has a latching device (31) for establishing a releasable engagement connection to a mating latching device (33) formed on the container stopper, wherein the cover disc has a cover strip which is separated from adjacent regions of the cover cap by lateral predetermined breaking lines and is connected to a pulling tab (41) arranged at a circumference of the cover disc, wherein the engagement connection can be established at an outer wall of a stopper recess (45) of the container stopper, wherein the cover disc has a guide projection (44) which is connected to the underside of the cover disc and is designed for arrangement in the stopper recess.

Description

[0001] July 10, 2025

[0002] PROTECHNA SA SI / PRO-128-WO

[0003] 1701 Fribourg Scu / saa

[0004] Seal cap for a container closure as well as container closure

[0005] The present invention relates to a sealing cap made of a plastic material for a container plug inserted into a bung of a container, wherein the sealing cap has a cover disc with a retaining ring connected to an underside of the cover disc, wherein the retaining ring has a locking device for creating a releasable engagement connection with a counter-locking device formed on the container plug, wherein the cover disc has a cover strip which is separated from adjacent areas of the cover disc by lateral predetermined breaking lines and is connected to a pull tab arranged on a circumference of the cover disc. The invention further relates to a container closure with such a sealing cap.

[0006] A sealing cap of the type mentioned above is also known from WO 2008 / 139196 Al. The known sealing cap, made of a malleable plastic, has a locking device arranged on the underside of the cover disc, by which the sealing cap is connected to a container plug located in a bung spigot of a container. The cover disc, with a rim formed therein, projects beyond the opening edge of the bung spigot with a lid rim, to which the rim is connected via a predetermined breaking point. Destruction of the predetermined breaking point, with a corresponding rim detached from the cover disc, at least partially, serves as an indication that an attempt has been made to remove the sealing cap from the container closure.

[0007] The locking mechanism is designed so that it is inserted into a recess in the container plug and engages with a counter-locking device on the inner wall of the recess, thus creating a connection. The sealing cap can be placed onto the container plug, which closes the bung of the filled container, either manually or automatically. A disadvantage of this design is that the sealing cap must be positioned as precisely as possible on the container plug before force is applied to create the connection. Furthermore, manufacturing tolerances of the sealing cap or the container plug, as well as the temperature during assembly (which can affect the elasticity of the plastic material), can lead to assembly problems requiring varying degrees of force and precise positioning.

[0008] The familiar sealing cap is removed from the container closure or stopper by separating the rim from the lid disc at the predetermined breaking point. A lid strip is further formed within the lid disc, separated from adjacent areas of the lid disc by lateral predetermined breaking lines and can be pulled out of the lid disc by applying a pulling force. This process separates the lid disc sufficiently to break the locking mechanism and disengage the locking connection. A disadvantage of this design is that the sealing cap is shaped in such a way that removing the sealing cap requires movements in opposite directions to removing the rim and pulling out the lid strip from the lid disc, which is considered very complex in practice.Furthermore, it has been found that the non-destructive removal of the sealing cap from the container stopper is possible if a lateral force is applied to the sealing cap in a certain way and the sealing cap is tilted or lifted slightly.

[0009] Since the well-known sealing cap is manufactured using an injection molding process, the predetermined breaking lines for forming the lid strip are created by pronounced thin areas in the lid disc. Due to the high strength of the sealing cap's plastic material, these predetermined breaking lines must be very thin to ensure effective tamper protection. However, this poses a problem when filling the corresponding injection molds, particularly when guaranteeing consistent quality during mass production.

[0010] The present invention therefore aims to propose a sealing cap that offers improved functional reliability and is easy to manufacture.

[0011] This problem is solved by a sealing cap having the features of claim 1 and a container closure having the features of claim 20.

[0012] The sealing flap according to the invention, made of a plastic material, in particular an elastic plastic material, for a container plug inserted into a bung of a container, has a cover disc with a retaining ring which is connected to an underside of the cover disc, wherein the retaining ring has a locking device for producing a releasable engagement connection with a counter-locking device formed on the container plug, wherein the cover disc has a cover strip which is separated from adjacent areas of the cover disc by lateral predetermined breaking lines and is connected to a pull tab arranged on a circumference of the cover disc, wherein the engagement connection can be produced on an outer wall of the container plug, in particular on an outer wall of a plug recess of the container plug, wherein the cover disc has a guide projection.which is connected to the underside of the lid disc and designed for placement in the plug recess.

[0013] In the sealing flap according to the invention, the engagement connection is formed on the outer wall of the plug recess or the container plug, such that the diameter of the locking device is located closer to a circumferential edge of the sealing cap and is therefore comparatively larger than in a locking device that engages within the plug recess. Surprisingly, it has turned out that, due to the position and the larger diameter of the locking device, it is no longer easily possible to detach the sealing cap from the container plug non-destructively by manually applying a transverse force. In particular, the application of the transverse force causes the locking device to engage with the counter-locking device on the side of the outer wall of the bung plug on which the transverse force acts.The locking mechanism is then at least not deformable to such an extent that it can be partially disengaged from the counter-locking mechanism. Furthermore, the sealing cap cannot be deformed on one side with both hands while simultaneously being vertically lifted on the opposite side. This significantly hinders manipulation of the sealing cap. Additionally, the guide projection formed on the underside of the lid disc for positioning it in the plug recess advantageously allows the sealing cap to be centered on the container plug before the engagement is established by applying a force vertically downwards to the sealing cap. Any potential slippage of the locking mechanism on the container plug before it engages with the counter-locking mechanism can be prevented by the guide projection, as it positions the sealing cap in the desired manner.This is particularly advantageous when automated assembly of the sealing cap onto the container plug is planned. The sealing cap can then be centered on the container plug using the guide projection during placement, ensuring that the locking mechanism is in the desired position to establish the engagement connection.

[0014] The guide projection can be designed so that, after the engagement between the retaining ring and the outer wall is established, it can rest loosely against an inner wall of the plug recess. Consequently, the guide projection can be designed for loose engagement within the plug recess. The guide projection then prevents relative movement of the sealing cap perpendicular to an axis of rotation of the container plug or in a vertical direction. Depending on the clearance between the guide projection and the inner wall of the plug recess, the guide projection can rest against the inner wall, at least partially. Since the guide projection is not otherwise secured within the plug recess, it can simply be pulled out of the plug recess when the sealing cap is removed from the bung.

[0015] The guide projection can be formed by a centering ring, which can be concentric with the retaining ring. The centering ring can be designed in the form of a centering cylinder and have a cup-shaped projection on the underside of the lid disc. Regardless of the shape of the inner wall of the stopper recess, it can then always be ensured that the centering ring rests against the inner wall, at least partially. Furthermore, no radial alignment of the sealing cap relative to the container stopper is then required.

[0016] The centering ring can be designed with an axial slot and / or a conical outer edge. The cylindrical centering ring can have an axial slot that extends to the underside of the cap disc. The axial slot can thus be designed as a recess that allows the centering ring to deform along the axis of rotation of the container stopper. The centering ring can then rest tightly against the inner wall of the stopper recess. Furthermore, the centering ring can be designed with a chamfer that facilitates its insertion into the stopper recess. The centering ring itself can be conical on its outer circumference.

[0017] A circular groove can be formed in the top surface of the lid disc, the diameter of which corresponds to the diameter of the centering ring. If the diameter of the groove is approximately the same as the diameter of the centering ring, stacking of sealing caps can be significantly facilitated. The lower edge of the centering ring of one sealing cap can then engage in the circular groove on the top surface of another, identically shaped sealing cap. This prevents the sealing caps from slipping radially relative to each other when they are positioned and handled in a stacked configuration. Advantageously, the centering ring is located directly below the circular groove, thus preventing material buildup at the connection point between the centering ring and the lid disc.

[0018] The lid strip can have a pull tab, which can extend from the pull tab on the circumference of the lid disc into an inner part of the lid disc within the retaining ring. The pull tab can be located at the intersection of the lid strip and the retaining ring. The pull tab can thus run along a radial outer surface of the sealing cap. The pull tab can be designed as a strip, a projection, or a ring that can be easily grasped manually. When the sealing cap is opened, applying a pulling force via the pull tab can detach the pull tab from the sealing cap's material and position it perpendicular to the lid strip. This makes it easier to separate the lid strip from the lid disc or to open the predetermined breaking lines by applying a pulling force.

[0019] The retaining ring can be designed with an opening through which the cover strip passes. This opening can, for example, be shaped like a recess extending to the underside of the cover disc. In this case, there is no retaining ring in the area of ​​the cover strip. The cover strip can then be more easily removed from the cover disc if the retaining ring is not connected to it. Alternatively, it would also be possible to connect the retaining ring to the cover strip, in which case predetermined breaking lines could be provided on the retaining ring in the area of ​​the cover strip.

[0020] The predetermined breaking lines can be formed outside the guide projection or at least partially through it. If the predetermined breaking lines run through the guide projection, predetermined breaking lines can also be formed on the guide projection itself. The guide projection is then at least partially connected to the cover strip. It is particularly advantageous if the predetermined breaking lines are formed outside the guide projection in the cover disc, as the cover strip can then be separated from the cover disc without further resistance. In all embodiments of the sealing cap, the predetermined breaking lines can be formed by pronounced thin sections, by predetermined breaking ridges, a perforation, or the like, or a combination thereof. The cover strip can be formed diagonally in the cover disc, extending beyond the center of the cover disc.The cover strip can extend to the opposite edge of the cover disc. The cover disc can thus be almost completely separated into two halves by removing the cover strip.

[0021] The lid strip can encompass an inner part of the lid disc with the guide projection and be separated from an outer part of the lid disc with the retaining ring by section-wise circular or arcuate predetermined breaking lines. These predetermined breaking lines can be designed to surround the guide projection and extend beyond the center of the lid disc. When the lid strip is removed from the lid disc, the guide projection can then be removed from the stopper recess simultaneously, thus facilitating easier removal of the sealing cap from the container stopper. The circular or arcuate predetermined breaking lines prevent force peaks when pulling the lid strip out of the lid disc, which could otherwise cause the lid strip to tear.

[0022] The cover strip can be separated from an inner part of the cover disc with the guide projection and from an outer part of the cover disc with the retaining ring by a section-by-section circular predetermined breaking line. The cover strip can then be formed within the cover disc around a center point, running between the locking mechanism and the guide projection. When the cover strip is removed from the cover disc, the inner part of the cover disc is separated from the outer part. It may be designed so that the cover strip does not completely encircle the inner part, leaving the inner and outer parts connected in a section. The removed and thus destroyed sealing cap remains intact, which facilitates disposal.

[0023] The predetermined breaking lines can be formed with a constant or continuously varying relative distance. The width of the cover strip can therefore be constant or variable. In particular, if the cover strip encompasses the guide projection, the predetermined breaking lines can be formed with a comparatively small relative distance at one edge of the cover disc, with a comparatively large relative distance in the area of ​​the guide projection, and again with a comparatively small relative distance at the opposite edge of the cover disc.

[0024] The predetermined breaking lines can also be positioned so that they are not located in the area of ​​the guide projection. This ensures that the predetermined breaking lines, or pronounced thin spots, can be reliably produced in an injection molding process. However, if the predetermined breaking lines are located in areas where they intersect with material accumulations, producing thin spots becomes more difficult.

[0025] The container plug can have a support device for resting against a container nozzle base formed on a container, wherein the support device can be designed with a rim web arranged concentrically to the fastening ring on the underside of the cover disc. Accordingly, the rim web can form the support device and, after the engagement connection is established, bear against the container. Through the support device, after the sealing cap is placed on the container plug and the snap-fit ​​connection with the container plug is established, a force-fit connection can be formed between the support device and the container nozzle base of the bung, so that any deformation of the cover disc under external pressure towards the container nozzle base results in the external load being transferred via the support device into the container nozzle base and not introduced into the engagement connection via the predetermined breaking lines.This prevents, for example, a sealing cap from being damaged when stacking containers, such as when a container's bottom comes into contact with the cap. Otherwise, a predetermined breaking line could be interrupted, potentially creating the appearance of tampering.

[0026] The lid disc may have a rim flange arranged concentrically to the mounting ring around its circumference to cover the opening edge of the bung spigot. Because the rim flange covers the opening edge of the bung spigot, manipulation of the bung spigot in the area of ​​the opening edge is prevented. The container plug cannot then be removed from the bung spigot without destroying the rim flange. In particular, the top of the lid disc may also extend beyond the rim flange of the sealing cap to prevent the rim flange from being torn off unintentionally upon contact with the underside of a container.

[0027] The rim apron can be separated from the cover plate by a predetermined breaking point. Alternatively, the rim apron breaking point can be separated from the cover plate by connecting webs formed in sections. A thin section can also form the rim apron breaking point. Furthermore, the rim apron can be designed such that it is formed by segments, each of which is connected by a predetermined breaking point. Here, too, the predetermined breaking point can be formed by connecting webs.

[0028] The rim apron's predetermined breaking line can be positioned at a distance from the upper edge of the rim. Alternatively, relative to the vertical extent or height of the rim, the predetermined breaking line can be located in the middle, the upper third, or a quarter of the rim. When the rim is lifted at its lower edge, its upper edge can then be supported by the cover plate or a ridge formed on the cover plate. This leverage effect can create increased tensile stress in the rim apron's predetermined breaking line, causing a break even during a lifting attempt, thus making tampering attempts more difficult.

[0029] A rim flange arranged concentrically to the mounting ring on the underside of the cover plate can have a lower edge that is set back from the underside of the cover plate relative to the lower edge of the rim flange. The rim flange can be designed so that it rests against the base of a container's nozzle when the connection is made. The rim flange can then extend beyond the rim flange to such an extent that the rim flange, and thus also the base of the container nozzle, is covered by the rim flange. Access to the rim flange then requires removal of the rim flange, which significantly hinders any attempt at tampering.

[0030] The pull tab of the lid strip can be designed in the rim such that it is connected to adjacent areas of the rim at predetermined breaking points on its sides. Actuating the pull tab then causes it to break away from the rim, thus initially breaching the rim around its circumference, which facilitates the removal of the sealing cap from the container stopper. At the same time, even slight actuation of the pull tab can be detected as an attempt at tampering.

[0031] The retaining ring can have locking lugs of the locking device, whereby the locking lugs can engage in a radial locking groove of the mating locking device on the container plug after the engagement connection has been established. The locking lugs can be formed in sections on the retaining ring, with the locking groove running continuously along the container plug. The locking lugs can be chamfered so that, to establish the engagement connection, they can overlap the outer wall of the container plug and slide along it to the locking groove. Furthermore, manufacturing a mating locking device or locking groove on the outer wall of the bung plug is comparatively simpler than manufacturing such a mating locking device for a retaining ring to be arranged in a plug recess. Thus, with a mating locking device or...Manufacturing a locking groove on the outer wall of the bung plug using injection molding by forming it over the jaws of an injection mold is simpler than manufacturing a counter-locking device in a plug recess, which then requires an internal slide in an injection mold.

[0032] The container closure according to the invention comprises a sealing cap according to the invention, wherein the container closure includes a container plug and a container nozzle base formed on a container, wherein the container nozzle base is formed as a wall section of a container with a bung formed in the wall section, or wherein the container nozzle base is formed as a closure cover for a container opening formed in a container wall, with a bung formed in a cover disc of the closure cover. The sealing cap is then universally usable for container closures with or without a closure cover. Further advantageous embodiments of a container closure are described in the features described in the dependent claims relating to claim 1.

[0033] Preferred embodiments of the sealing cap are explained in more detail below with reference to the drawings.

[0034] Figure 1 shows an IBC in isometric view with a container closure arranged on the top of an inner container of the IBC;

[0035] Fig. 2 shows the container closure shown in Fig. 1 in detail;

[0036] Fig. 3 shows the container closure shown in Fig. 2 in sectional view;

[0037] Fig. 4 shows the container closure arranged on a container opening of the IBC shown in Fig. 1 in a sectional view according to section line IV - IV in Fig. 1;

[0038] Fig. 5 shows the sealing cap of the container closure shown in Fig. 2 in a view from below;

[0039] Fig. 6 shows an isometric representation of another embodiment of a sealing cap.

[0040] Fig. 1 shows a transport and storage container 10, also known as an IBC, which is arranged on a transport pallet 1 1 and has an inner container 13 enclosed in a wire cage 12, which is provided on a front side with a container fitting 14 and on a top side with a container opening 16 which can be closed by means of a container closure 15.

[0041] As shown in Figures 2 to 4, the container closure 15 has a screw-on lid 17, which is screwed to an opening rim of the container opening 16. A bung 20 is formed in a cover disc 19 of the lid 17, which penetrates the cover disc 19 such that an opening rim 21 of the bung 20 projects onto a top surface 22 of the cover disc 19. As shown particularly in Figure 4, a container plug 23 is screwed into the bung 20, sealing it. On the container plug 23 there is a sealing cap 24, which has a cover disc 25 and a sleeve-shaped rim skirt 26 extending substantially perpendicular to the cover disc 19, which, as shown in particular in Fig. 2, is connected to the cover disc 25 via a predetermined breaking device 28 having predetermined breaking ribs 27.

[0042] The cover disc 25 is provided on an underside 29 with a locking device 3 1 designed here as a fastening ring 30, which engages a radial locking groove 32 formed circumferentially in the container plug 23 of a counter locking device 33 of the container plug 23.

[0043] Furthermore, the cover disc 25 is provided on its underside 29 radially inside adjacent to the predetermined breaking point 28 with a support device 35 designed as a rim 34, wherein the rim 34 rests with a lower edge 36 on the opening edge 21 of the bung 20 arranged on the upper side 22 of the closure cover 17. In the embodiment shown here, the rim apron 26 is connected to the rim 34 via the predetermined breaking point 28. The rim apron 26 covers the lower edge 36 of the rim 34 resting on the opening edge 21, since the lower edge 36 is set back relative to a lower edge 37 of the rim apron 26.

[0044] The sealing cap 24 is further designed such that the cover disc 25 has a cover strip 38 which is connected by lateral predetermined breaking lines 39 to a pull tab 41 arranged on a circumference 40 of the cover disc 25. The cover strip 38 further has a pull tab 42 which extends from the pull tab 41 through the rim 26 and the rim 34 to the circumference 40. By manually actuating the pull tab 41 and exerting a pulling force towards a center 43 of the cover disc 25, the cover strip 38 is pulled out of the cover disc 25 by destroying the predetermined breaking lines 39, which leads to an opening of the rim 26 and the retaining ring 30. The sealed cap 24, thus destroyed, can then be completely removed from the container plug 23.

[0045] The sealing cap 24 has a guide projection 44 on the underside 29 of the cover disc 25, which is arranged in a plug recess 45 of the container plug 23. The guide projection 44 is designed as a centering ring 46 and has an axial slot 47. In particular, the centering ring 46 comes into at least partial contact with an inner wall 48 of the plug recess 45, so that the sealing cap 24 is centered before the locking device 31 engages with the counter-locking device 33 when brought together against the container plug 23. The centering ring 46 also prevents manual displacement of the sealing cap 24 on the container plug 23 transversely to a rotation axis 49 of the container plug 23.

[0046] A circular groove 51 is formed in the upper surface 50 of the cover disc 25, into which a lower rim 52 of an identically shaped sealing cap 24 (not shown here) can be inserted. Multiple sealing caps 24 can thus be stacked particularly easily.

[0047] In the exemplary embodiment of the sealing cap 24 shown here, the predetermined breaking lines 39 extend beyond the center 43 of the cover disc 25, with the cover strip 38 encompassing the inner part 53 of the cover disc 25 with the guide projection 44 and being separated from an outer part 54 of the cover disc 25 with the retaining ring 30 by the predetermined breaking lines 39. The predetermined breaking lines 39 extend in sections in an arc or circle shape to the opposite circumference 40 of the cover disc 25.

[0048] Fig. 6 shows a further embodiment of a sealing cap 55, which, unlike the sealing cap from Figs. 1 to 5, has a cover disc 56 with a cover strip 57 that only partially encompasses an inner part 58 of the cover disc 56 with the guide projection 44. The cover strip 57 separates the inner part 58 from an outer part 59 of the cover disc 56 by means of partially circular, in particular three-quarter circular, predetermined breaking lines 60. The cover strip 57 therefore runs between the retaining ring 30 and the centering ring 46.

Claims

July 10, 2025 PROTECHNA SA SI / PRO-128-WO 1701 Fribourg Scu / saa Patent claims 1. Sealing cap (24, 55) made of a plastic material for a container plug (23) inserted into a bung (20) of a container (13), wherein the sealing cap has a cover disc (25, 56) with a retaining ring (30) which is connected to an underside (29) of the cover disc, wherein the retaining ring has a locking device (31) for producing a releasable engagement connection with a counter-locking device (33) formed on the container plug, wherein the cover disc has a cover strip (38, 57) which is separated from adjacent areas of the cover disc by lateral predetermined breaking lines (39, 60) and is connected to a pull tab (41) arranged on a circumference (40) of the cover disc, characterized in that the engagement connection can be produced on an outer wall of the container plug, wherein the cover disc has a guide projection (44),which is connected to the underside of the lid disc and is designed for arrangement in a plug recess (45) of the container plug.

2. Sealing cap according to claim 1, characterized in that the guide projection (44) is designed such that, after the engagement connection between the fastening ring (30) and the outer wall has been established, it rests loosely against an inner wall (48) of the plug recess (45).

3. Sealing cap according to claim 1 or 2, characterized in that the guide projection (44) is formed by a centering ring (46) which is concentric to the fastening ring (30).

4. Sealing cap according to claim 3, characterized in that the centering ring (46) is formed with an axial slot (47) and / or a conical outer edge (52).

5. Sealing cap according to claim 3 or 4, characterized in that an annular groove (51) is formed in a top surface (50) of the cover disc (25, 56), the diameter of which corresponds to a diameter of the centering ring (46).

6. Sealing cap according to one of the preceding claims, characterized in that the lid strip (38, 57) has a pull tab (42), wherein the lid strip extends from the pull tab (41) on the circumference (40) of the lid disc (25, 56) into an inner part of the lid disc within the fastening ring (30) and the pull tab is arranged in an intersection area between the lid strip and the fastening ring.

7. Sealing cap according to one of the preceding claims, characterized in that the fastening ring (30) is formed with an opening through which the cover strip (38, 57) passes.

8. Seal cap according to one of the preceding claims, characterized in that the predetermined breaking lines (39, 60) are formed outside the guide projection (44) or at least partially extending through the guide projection.

9. Sealing cap according to one of the preceding claims, characterized in that the cover strip (38) in the cover disc (25) is formed diagonally extending beyond a center (43) of the cover disc.

10. Sealing cap according to one of the preceding claims, characterized in that the cover strip (38) comprises an inner part (53) of the cover disc (25) with the guide projection (44) and is separated from an outer part (54) of the cover disc with the fastening ring (30) by section-wise circular or arcuate predetermined breaking lines (39).

11. Sealing cap according to one of claims 1 to 8, characterized in that the cover strip (57) is separated from an inner part (58) of the cover disc (56) with the guide projection (44) and from an outer part (59) of the cover disc with the fastening ring (30) by a section-wise circular predetermined breaking line (60).

12. Seal cap according to one of the preceding claims, characterized in that the predetermined breaking lines (39, 60) are formed with a constant or continuously varying relative distance from each other.

13. Sealing cap according to one of the preceding claims, characterized in that the container plug (23) has a support device (35) for resting on a container nozzle base formed on a container (13), wherein the support device is formed with a rim web (34) arranged concentrically to the fastening ring (30) on the underside (29) of the cover disc (25, 56).

14. Sealing cap according to one of the preceding claims, characterized in that the cover disc (25, 56) has on its circumference (40) an edge skirt (26) arranged concentrically to the fastening ring (30) for covering an opening edge (21) of the bung spigot (20), 15. Sealing cap according to claim 14, characterized in that the edge apron (26) is separated from the cover disc (25, 56) by an edge apron break line having a predetermined breaking device (28).

16. Sealing cap according to claim 15, characterized in that the edge apron break line is formed spaced apart from an upper edge of the edge apron.

17. Sealing cap according to one of claims 14 to 16, characterized in that a rim web (34) arranged concentrically to the fastening ring (30) on the underside (29) of the cover disc (25, 56) has a lower edge (36) that is set back relative to a lower edge (37) of the rim apron (26) with respect to the underside of the cover disc.

18. Sealing cap according to one of claims 14 to 17, characterized in that the pull tab of the lid strip (38, 57) is formed in the edge skirt (26) such that the pull tab (41) is connected to adjacent areas of the edge skirt at lateral predetermined breaking devices (28).

19. Sealing cap according to one of the preceding claims, characterized in that the fastening ring (30) has locking lugs of the locking device (31) which, after the engagement connection has been made, engage in a radial locking groove (32) of the counter locking device (33) on the container plug (23).

20. Container closure (15) with a sealing cap (24) according to one of the preceding claims, wherein the container closure comprises a container plug (23) and a container nozzle base formed on a container (13), wherein the container nozzle base is formed as a wall section of a container, with a bung formed in the wall section, or wherein the container nozzle base is formed as a closure cover (17) for a container opening (16) formed in a container wall, with a bung (20) formed in a cover disc (19) of the closure cover.

Images