Closure cap

Abstract

The invention relates to a closure cap (1) having a central axis (y), a circumferential cap wall (5) and a cap top (6) formed substantially perpendicular to the cap wall (5), for a container (3) provided with a mouth (2), wherein the cap wall has a cap edge (7) facing away from the cap top and a retaining ring (8) is attached to the cap edge by means of two retaining strips (9, 10), wherein the retaining strips transition into the cap edge in a first and second attachment region (11, 12) and transition into the retaining ring (8) in a third and fourth attachment region (13, 14), said retaining strips forming a permanent connection between the retaining ring (8) and the closure cap (1) even in the open state of the closure cap (1), wherein furthermore the retaining ring (8) is designed in a circumferentially closed manner, having a connection region (15) between the third and fourth attachment region of the retaining strips, wherein the cap wall continues on into a cap projection (27) between the first and the second attachment region in the direction of the central axis and facing away from the cap top, and wherein the connection region of the retaining ring runs below the cap projection. The object of the invention is to make it easier to bring the closure cap into a stable swivel-open position.

Description

Description V closure cap field of technology

[0001] Described is a closure cap with a central axis, a circumferential cap wall, and a cap lid formed essentially perpendicular to the cap wall, for a container provided with an opening, wherein the cap wall has a lower cap rim facing away from the cap lid, and a retaining ring is attached to the cap rim by means of two retaining bands, wherein the retaining bands transition into the cap rim in a first and a second attachment area and transition into the retaining ring in a third and a fourth attachment area, which retaining bands also form a permanent connection between the retaining ring and the closure cap when the closure cap is open, wherein the retaining ring is furthermore formed circumferentially when closed, with a connection area between the first and fourth attachment areas of the retaining bands.wherein the cap wall between the first and the second connection area continues in the direction of the central axis, away from the cap roof, into a cap projection, and wherein the connection area of ​​the retaining ring runs below the cap projection. State of the art

[0002] Closure caps of the type in question are known, for example from WO 2021 / 201 915 Al. Such a closure cap serves to close containers, for example in the form of beverage bottles. The closure cap is held in the open position by two retaining bands, completely exposing the mouth opening. The position can be swivelled. From the open position, the closure cap can be returned to the closed position. In the swivel-open position, a support can be provided between the Cap protrusion and a section of the retaining ring can be reached. Summary of the invention

[0003] With regard to the prior art described above, the invention aims to facilitate bringing the closure cap into a stable pivoting open position.

[0004] One possible solution to the problem is given in a first embodiment of a closure cap, in which the third and / or the fourth connection area is formed below an end of the cap projection facing the retaining ring at the connection area, and in which the height of the connection area at the third and / or fourth connection area corresponds to half or less of the height of the retaining ring in the circumferential direction outside the connection area and the first and fourth connection area.

[0005] This design results in a favorable ratio between the length of the retaining straps and the length of the board, viewed along the central axis, for the pivoting action of the cap. To increase the strap length, the height of the retaining ring, specifically the connection area, is reduced, particularly at the lower connection points. The respective strap lengths are determined between the first and third connection points and between the second and fourth connection points, with the length further defined, for example, along a center line through the retaining strap, starting from the cap-side point. The connection area can be measured up to the connection area on the retaining ring side. Due to the low height of the connection area, especially in the area of ​​the aforementioned connection points, a relevant band length is nevertheless achievable with a comparatively small extent of the retaining band(s) in the circumferential direction of the cap. The length of the cap projection is determined from the cap edge in the direction of the central axis to a free end of the cap projection.

[0006] The band length may be approximately 2 to 4 times, or 2.5 to 3.5 times, or 3 times, the length of the cap projection.

[0007] The height of the connection area at the third and / or fourth connection area can, for example, correspond to approximately 0.25 to approximately 0.5 times, or further, for example, approximately 0.3 to 0.35 times, the height of the retaining ring in a circumferential area outside the first and fourth connection areas. With this height outside the first and fourth connection areas, on the side facing away from the connection area, the retaining ring is preferably formed over the entire circumference outside the first and fourth connection areas, at least over a greater length than corresponds to the connection area, preferably over the entire length thus given.

[0008] A closure cap has been created which, in the open position, can be held securely in a user-friendly swiveling position, thus allowing unimpeded pouring of the container contents. The preferred embodiment guarantees a secure swiveling Opening position of the cap. The favorable ratio of board length to band length achieved through the design allows for improved handling when opening and closing the cap, as well as, in the open position, a distance of the cap that results essentially in a radial direction to the mouth, while the cap is supported by and, if necessary, locked into place by the retaining ring.

[0009] The cap serves to close containers, for example, beverage bottles, or plastic bottles, preferably made of polyethylene terephthalate (PET), in which position the cap lid covers the opening. If the cap is a screw cap, the cap wall engages with a thread on the opening side. The two retaining straps allow the cap to be pivoted in the open position to a position that completely exposes the opening, whereby even in this open or pivoted position the The cap is held securely at the container opening by the retaining straps and the retaining ring. From the open position, the cap can be returned to the closed position. The opening and closing process can be repeated while the cap remains attached to the retaining ring.

[0010] When the closure cap is designed as a screw cap, a closure cap unscrewing displacement results to bring the closure cap into an open position and an screwing displacement results to bring the closure cap into the closed position.

[0011] In a first closed position, the cap can be connected to the retaining ring via tear-off tabs to ensure authenticity; these tabs are preferably severed solely by unscrewing the cap during a first opening.

[0012] Each retaining strap can – with reference to the central axis and looking at a plane in which the central axis is represented as a point – have a circumferential extent over an angle of, for example, about 30 to about 40 degrees, and further, for example, about 33 degrees.

[0013] The cap is appropriately made of a plastic material, for example polyethylene (PE), high-density polyethylene (HDPE) or polypropylene (PP).

[0014] In a further development, it may be provided that the third and / or the fourth connection area transitions into the retaining ring or the connection area via a connection plane that runs essentially perpendicular to the central axis. Preferably, both the third and the fourth connection area can be formed in a common lower connection plane that is oriented perpendicular to the central axis.

[0015] The first and / or second connection area can also be formed in an upper connection plane viewed perpendicular to the central axis, which connection plane in a possible design of the closure cap can essentially also be the plane in which the cap projection runs into the cap edge.

[0016] Furthermore, a distance may arise, viewed in the direction of the central axis, between the upper connection plane, in which the first and second connection areas preferably merge into the cap edge, and the lower connection plane, in which the third and fourth connection areas preferably merge into the retaining ring or the connecting area, which is greater than the length of the cap projection. For example, the distance between the connection planes may correspond to approximately 1.01 to approximately 1.2 times the length of the projection, or to approximately 1.05 to 1.1 times.

[0017] Furthermore, in a further embodiment, the third and / or fourth connection area can be separated on both sides from the retaining ring or the connection area by a clearance area running perpendicular to or at an acute angle to the central axis. This clearance area can extend radially outwards, at least partially, in alignment with the central axis, with respect to the end cap. This clearance area, particularly with regard to its edges defined by the retaining band and the retaining ring, can also form an acute angle of, for example, approximately 25 to approximately 50 degrees, or further, for example, approximately 35 to approximately 45 degrees, to the central axis when projected onto a vertical plane in which the central axis is represented as a single unit.

[0018] The clearance area can occur on either side of the third and / or fourth attachment point of the retaining strap in a possible further development. In this case, an edge limiting the clearance area, particularly of the third attachment point, can be formed by the cap projection.

[0019] With reference to a cut in a vertical plane through the retaining ring in the area of ​​a retaining band, a clearance area can also be created for vertically spacing the retaining band from the connection area of ​​the retaining ring. Preferably, a clearance area can be provided in the closed position, extending essentially in a plane perpendicular to the central axis. The vertical distance in this further clearance area can be bridged, in the closed state and viewed circumferentially, by one or more breakaway tabs connecting the retaining band to the connection area.

[0020] This can result in, but is not limited to, circumferentially extending, slot-like relief areas, optionally interrupted by tear-off ridges, between the retaining bands and the connecting area, and preferably also between the cap rim and the retaining ring and / or the retaining bands. These relief areas are taken into account and thus released during the preferred plastic injection molding process of the cap. Alternatively, after the plastic injection molding of the cap, the retaining bands and the retaining ring can be released by subsequently cutting out the relief areas.

[0021] The counter-projection can be formed between the third and fourth connection areas when viewed in the circumferential direction.

[0022] A counter-projection may be formed at the connection area, which – with respect to the cap's closed position – is arranged circumferentially next to the cap projection. While the cap projection extends from the cap edge in the direction of the Since the central axis extends downwards, the counter-projection preferably extends in the opposite direction from the connection area upwards towards the central axis. The cap projection and the counter-projection may have opposing edge edges that, during the unscrewing of the cap, can slide against each other in a beveled manner, so that, with the retaining bands erecting, the cap projection can reach a position above the counter-projection and essentially in a vertical extension to the counter-projection at the end of the unscrewing process.

[0023] In the pivot-open position of the closure cap, the cap projection can engage with the counter-projection on the retaining ring side in a latching manner, so that a secure pivot-open position of the closure cap is achieved.

[0024] The connection area may have a reduced height relative to the retaining ring outside the connection area when viewed in the direction of the central axis. In the area of ​​the third and / or fourth connection areas, or in the area of ​​the lower connection plane, a further reduction in height may occur due to the formation of a recess in the connection area. The free end of the cap projection, for example, may also project into this recess when the cap is in the closed position.

[0025] The vertical height of the connection area outside such a connection area recess can, for example, correspond to approximately 60 percent or more of the total vertical height of the retaining ring outside the connection area. This height can further be, for example, approximately 60 to 90 percent, or further, for example, approximately 65 to 70 percent of the height of the mounting ring outside the connection area.

[0026] The connection area recess is a subsection of the connection area. When the connection area is mentioned, unless specific reference is made to the connection area recess or the adjoining section, this can refer to both the reduced-height connection area recess and the corresponding, higher, circumferentially adjacent section of the connection area.

[0027] The radial thickness of a retaining band, measured in the closed position and perpendicular to the central axis, can be less than the height of the retaining band segment when viewed along the central axis. For example, the thickness might be approximately 40 to 75 percent of the retaining band height, or perhaps 50 to 60 percent.

[0028] For example, to further stabilize the connection area, it can have a radial enlargement compared to the remaining retaining ring, extending circumferentially from the counter-projection beyond the third and / or fourth connection area. In this respect, several areas with radial enlargements, for example two, can occur in the circumferential direction, which may have different radial dimensions immediately adjacent to one another.

[0029] The radial overhang of the magnification beyond the outer surface of the connection area outside the magnification can be determined in the Essentially, the radial overhang of the counter-projection attached to the connection area should correspond to this. For example, such an overhang can be chosen to be approximately 0.5 to 1.2 times, up to 2 times, or even 0.6 times or 1.1 times the radial thickness of the retaining ring outside the connection area.

[0030] In particular, the radial enlargement in the circumferential direction can occur over the area of ​​the indentation in the connection area.

[0031] Associated with the connection areas, the retaining band may have a radial taper in the direction of the end cap. This can result in a hinge-like design that advantageously supports both the upward movement of the retaining bands during the unscrewing of the end cap and the downward movement of the retaining bands during the screwing on of the end cap.

[0032] In the area of ​​the taper, which may occur at the first and / or the second connection area and / or at the third and / or the fourth connection area, a radial thickness dimension may be given which may correspond, for example, to approximately 0.5 to approximately 0.9 times, or further, for example, to approximately 0.7 to approximately 0.8 times, the radial thickness dimension of the retaining band outside the taper.

[0033] In one possible embodiment, the tapering can be directed radially outwards, so that in the area of ​​the tapering there is a stepped transition radially outwards between the non-tapered section of the retaining strap and the tapered section, as well as, if necessary, between the tapered section and the cap edge and / or the connection area may occur.

[0034] Radially on the inside, there may be an essentially flat transition between the non-tapered section of the retaining band and the tapered section, as well as, if applicable, between the tapered section and the cap edge and / or the connection area.

[0035] The cap projection can, moreover, have a length extending beyond the cap edge that exceeds the height of a retaining band when viewed along the central axis. For example, the projection length of the cap projection can be approximately 1.5 to 3 times, or even approximately 2 times, the height of a section of the retaining band running essentially in a plane perpendicular to the central axis when viewed along the central axis in the closed position. Furthermore, the projection length can also be approximately 0.7 to 0.9 times, or even approximately 0.8 to 0.85 times, the height of the retaining ring outside the connection area when viewed along the central axis.

[0036] The cap can also, as preferred, have only one (numeral) cap projection and / or only one (numeral) counter projection.

[0037] The ranges or value ranges or multiple ranges specified above and below also include, with regard to the disclosure, all intermediate values, in particular in 1 / 10 increments of the respective dimension, and possibly also dimensionless values. For example, the specification 0.2 to 1 mm also includes the disclosure of 0.3 to 1 mm, 0.2 to 0.9 mm, 0.3 to 0.9 mm, etc., and the specification 40 to 60 degrees also includes the disclosure of 40.1 to 60 degrees, 40 to 59.9 degrees, 40.1 to 59.9 degrees, etc. This disclosure can serve, on the one hand, to limit a specified range boundary from below and / or above, or alternatively or additionally, to disclose one or more singular values ​​from a respective specified range. Brief description of the drawings

[0038] The following are detailed explanations of various configurations based on the attached drawing, which merely represents examples. It shows: Fig. 1 shows a cap in perspective view; Fig. 2 shows the closure cap in a side view with a view of a cap projection formed in the circumferential direction between two retaining bands and a counter projection; Fig. 3 shows the enlargement of area III in Figure 2; Fig. 4 shows the magnification of area IV in Figure 2; Fig. 5 shows the view towards the closure cap according to arrow V in Figure 2; Fig. 6 shows the enlargement of area VI in Figure 5; Fig. 7 shows the view towards the end cap according to arrow VII in Figure 2; Fig. 8 shows the enlargement of area VIII in Figure 7; Fig. 9 shows the section through the closure cap along line VIII-VIII in Figure 2, relating to a closed position of the closure cap sitting on a container opening; Fig. 10 shows the section along line X-X in Figure 2; Fig. 11 shows the section along line XI - XI in Figure 10; Fig. 12 shows the section along line XII - XII in Figure 2; Fig. 13 shows the section along line XIII - XIII in Figure 2; Fig. 14 shows the section along line XIV-XIV in Figure 13; Fig. 15 shows a view according to Figure 2, with the closure cap sitting on the container opening when it reaches an open position; Fig. 16 shows the view according to arrow XVI in Figure 15; Fig. 17 the view according to arrow XVII in Figure 15; Fig. 18 the section along line XVIII - XVIII in Figure 15; Fig. 19 shows the enlarged area XIX in Figure 18; Fig. 20 is a sectional view according to Figure 18, which Regarding the swiveling open position of the closure cap; Fig. 21 shows the enlarged area XXI in Figure 18; Fig. 22 shows the further enlarged area XXII in Figure 21; Fig. 23 shows a representation according to Figure 1 of a second Design; Fig. 24 shows a representation according to Figure 2 of the second embodiment; Fig. 25 shows a representation according to Figure 3 of the second embodiment; Fig. 26 shows a representation according to Figure 6 of the second embodiment; Fig. 27 is a representation according to Figure 15 of the second Design; Fig. 28 shows a representation according to Figure 20, with supplementary magnified views, of the second embodiment; and Fig. 29 shows a representation of the container in the open state of the closure cap, seen from above. Description of the embodiments

[0039] Shown and described, initially with reference to Figure 1, is a closure cap 1 for a container 3 provided with an opening 2.

[0040] The closure cap 1 has a central axis y which, in the position closing the opening 2 according to Figure 9, coincides with a central axis x of the container 3 or the opening 2.

[0041] A cap wall 5 runs concentrically to the central axis y. A cap cover 6 is preferably formed integrally with the cap wall 11 and is essentially perpendicular to the cap wall 5. In the closed position, as shown in Figures 9 to 19, the cap cover 6 spans an opening 4. The cap cover 6 extends substantially intersecting and preferably perpendicular to the central axis y.

[0042] On the inside of the cap wall 5, a mating thread 18 for a container-side thread G is preferably formed integrally with the cap wall 5.

[0043] The cap cover 6 can bear on its inner wall a sealing collar 21 concentric to the central axis y, with an outer sealing bead 22, for at least approximately sealing interaction with the inner surface 23 of the orifice 2 in the area of ​​the orifice opening 4 in the closed position (compare figure 9).

[0044] Container 3 could, for example, be a bottle-shaped container, or, for example, a so-called PET bottle.

[0045] The mouth 2 extends around a central axis x which runs vertically when the container 3 is placed on a flat surface and has a mouth opening 4 which runs transversely to this central axis x.

[0046] In the illustrated embodiment, in which the closure cap 1 is designed as a screw cap, at least one thread G with, for example, two thread turns 20 extends around the outside of the mouth wall 19. The mouth wall 19 essentially forms the thread base.

[0047] Below and maintaining a distance in the direction of the central axis x, a first circumferential radial projection 24 is provided, below which, at a further axial distance from the first radial projection 24, a second circumferential radial projection 25 can be formed. The one or both radial projections 24 and 25 are concentric and circumferentially arranged perpendicular to the central axis x.

[0048] According to the illustrated embodiment, the second radial projection 25 can have a diameter that is larger both than the outer diameter of the threaded turns 20 and than than the diameter of the first radial projection 24.

[0049] The cap wall 5 has a lower, circumferential cap edge 7 facing away from the cap roof 6. A retaining ring 8 is attached to this cap edge 7 by means of two retaining bands 9 and 10.

[0050] The first retaining band 9 preferably merges in one piece and of uniform material into the cap edge 7 in a first connection area 11 and into the retaining ring 8 in a third connection area 13 offset in the circumferential direction to the connection area 11.

[0051] The second retaining band 10 preferably extends in a second connection area 12, in one piece and of uniform material, into the cap edge 7 and in a fourth connection area 14, offset circumferentially from the connection area 12, into the retaining ring 8. The offset direction of the connection areas of both retaining bands 9 and 10 is preferably chosen to be the same.

[0052] The retaining bands 9 and 10 form a permanent connection between the retaining ring 8 and the retaining cap 1 both in the closed position according to Figures 1 to 14 and in the open or further pivoted state of the closure cap 1 (for example according to Figures 15 to 22), wherein the retaining ring 8 is furthermore formed as a closed circumferential element and forms a connection area 15 which extends essentially between the first connection area 11 and the fourth connection area 14 of the retaining bands 9 and 10.

[0053] The closure cap 1 is expediently made of a plastic material, for example polyethylene (PE), high-density polyethylene (HDPE) or polypropylene (PP). Preferably, it may be manufactured using a plastic injection molding process.

[0054] Slit-like and preferably interrupted by tear-off ribs 16, relief areas 17 between the retaining bands 9 and 10 and the connection area 15, and preferably also between the cap rim 7 and the retaining ring 8 and / or the retaining bands 9 and 10, can already be taken into account and thus freed up during the preferred plastic injection molding process of the closure cap 1. They can also be formed by milling or cutting after the closure cap has been injection molded.

[0055] As can be seen from the illustrations, tear-off bridges 16 can be provided between the cap edge 7 and the retaining ring 8 outside the connection area 15 and between the connection area 15 and the retaining bands 9 and 10 near the first and second connection areas 11 and 12.

[0056] The retaining ring 8 – and via it the entire closure cap 1 – can be secured, at least in the closed position, essentially between the first and second radial projections 24 and 25 of the muzzle wall 19. This securing between the two radial projections 23 and 24 can be achieved by radially inward-projecting projections 26 formed on the inner side of the retaining ring 8, which create a barbed, trigger-resistant underhand grip, particularly for the first radial projection 24 (see Figures 1 and 9).

[0057] The cap wall 5 can continue between the first and the second connection area 11 and 12 in the direction of the central axis y, away from the cap ceiling 6, into a cap projection 27, wherein the cap projection 27 has a vertical projection f in the usual state of use in relation to the cap edge 7.

[0058] In the cap-closing position according to, for example, Figure 2, a first band section 9' or 10' of the retaining band 9 or 10 runs essentially in a plane perpendicular to the central axis y and thus oriented along a parallel plane to the cap edge 7.

[0059] The length of the board f of the cap projection 27 can exceed the measure of a height u of the first band section 9' or 10' considered in the direction of the central axis y.

[0060] The length of the guide rail f can, for example, correspond to approximately 1.5 to approximately 2.5 times, or further, for example, approximately 2 times, the height u of a first band section 9' or 10', as viewed in the direction of the central axis y. Furthermore, alternatively or additionally, the length of the guide rail f can also correspond to approximately 0.5 to approximately 0.9 times the height h of the retaining ring 8, also as viewed in the direction of the central axis y, in a region free of retaining bands 9 and 10 between the fourth and third connection areas 14 and 13. Alternatively or additionally, the length of the guide rail f can also correspond to approximately 1.5 to 2.5 times, preferably approximately 2 times, the axial height u" explained below.

[0061] Viewed radially from the outside of the cap wall 5, the cap projection 27 can be shown in Figure 2 as having a substantially triangular shape, with a base via which the cap projection is connected to the cap edge 7 in an upper connection plane E extending perpendicular to the central axis y. The projection edge edges 29 and 30 extending from the base converge towards a lower free end 28.

[0062] The projecting edge edges 29 and 30 can each enclose an acute angle a of, for example, about 30 to 45 degrees with a line a running parallel to the central axis y and passing through the center of the cap projection 27.

[0063] The free end 28 of the cap projection 27 is formed by an edge section 31 connecting the projection edge edges 29 and 30, which runs essentially in a plane parallel to the upper connection plane E. The edge section 31 preferably has a circumferential extent that corresponds to about 20 to 50 percent, preferably about 25 percent, of the extent of the cap projection at the point where it meets the cap edge 7.

[0064] The cap projection 27 can extend in the circumferential direction R, with respect to the area in which the cap projection 27 merges into the cap edge 7, over an angle y of approximately 10 to approximately 25 degrees, and further, for example, approximately 15 degrees (compare Figure 10).

[0065] The connection area 15 of the retaining ring 8 runs in the direction of the central axis y, facing away from the cap roof 6 below the cap front spring 27 as well as below the retaining bands 9 and 10.

[0066] Each retaining band 9 and 10, in addition to the aforementioned first band section 9' or 10', has a second band section 9", 10" which extends at an angle to the first band section 9', 10' along the longitudinal extent of the retaining band 9, 10. With reference to a geometric central axis m running through the retaining band 9, 10 (compare, for example, Figure 3), the second band section 9" or 10" can form an acute angle with the respective first band section 9', 10', which, preferably, can correspond to the angle α in the region of the cap projection 27. This can result in band section edge edges 32 and 33, which can run parallel to each other and, furthermore, parallel to the facing projection edge edge 29 with respect to the retaining band 9.

[0067] The connection area 15 of the retaining ring 8 can, in a further embodiment, have one or more vertical connection area recesses 34 directed towards the central axis y. In a connection area recess 34, the vertical extent of the connection area 15 is reduced, preferably with a lower circumferential edge 47 of the retaining ring 8 remaining unchanged. Preferably, the lower edge 47 extends over the entire circumference of the retaining ring 8 in a plane perpendicular to the central axis y, regardless of the configuration of these connection area recesses 34. The connection area recesses 34 can, in particular, be provided for the third and fourth connection areas 13 and 14 of the retaining bands 9 and 10.

[0068] The recessed connection area 34 associated with the third connection area 13 can extend circumferentially beyond the third connection area 13. The recessed section of the connection area 15 extends further below the cap projection 27 and finally transitions into a counter-projection 35, which is preferably formed integrally with the connection area 15 and / or of the same material.

[0069] The counter-projection 35 extends from the connection area 15, in particular the connection area recess 34, in the cap closure position, for example according to Figure 2, in an axial direction towards the cap edge 7 and in a circumferential direction laterally to the cap projection 27, facing the projection edge 30 facing away from the retaining band 9.

[0070] Adjacent to the projecting edge 30, a counter-projecting edge 36 is formed, preferably running essentially parallel to it.

[0071] Between an end of the counter-projection 35 pointing towards the cap edge 7, which end is formed by a further counter-projection edge 37 extending substantially parallel to the upper connection plane E in the cap-closed position and axially offset therefrom towards the connection area 15, and the cap edge 7, a further tear-off rib 16 may, in a further embodiment, be provided. The counter-projection edge 37 preferably runs parallel to the edge edge section 31. More preferably, the counter-projection edge 37 is longer than the edge edge section 31. The length of the counter-projection edge 37 can be two to four times, preferably approximately three times, the length of the edge edge section 31.

[0072] In the cap-closing position, a substantially V-shaped receptacle 38 is formed, adapted to the contour of the cap projection 27, and is essentially limited by the band section edge 33, the counter-projection edge 36 and an upper edge of the connection area 15 facing the cap projection 27 in the area of ​​the recess 34.

[0073] The third and / or the fourth connection area 13, 14, in particular the second belt sections 9 entering these connection areas 13, 14 ZZ , 10”, can be separated on both sides from the retaining ring 8 or the connecting area 15 by a clearance area 17 extending at an acute angle β to the central axis y, for example, the latter corresponding substantially to the angle α. A clearance area 17 can be View of the end cap 1 of - with reference to the central axis y - radially outwards, at least in sections, also essentially in alignment with the central axis y - for example, arranged to the first and / or second connection area 11, 12.

[0074] A clearance area 17 can occur on both sides of the third and / or fourth connection area 13, 14 of the retaining band 9, 10. An edge limiting the clearance area 17, in particular of the third connection area 13, can be formed by the projecting edge 29 of the cap projection.

[0075] The third and / or the fourth connection area 13, 14, and also the first and / or the second connection area 11, 12, can transition into the retaining ring 8 or the connection area 15 via a connection plane E', E which preferably runs essentially perpendicular to the central axis y.

[0076] In this case, both the third and the fourth connection area 13, 14 can be formed in a common lower connection plane E' oriented perpendicular to the central axis y, and the first and / or the second connection area 11, 12 can be formed in an upper connection plane E considered perpendicular to the central axis y.

[0077] Furthermore, a distance b, considered in the direction of the central axis y, may arise between the upper connection plane E and the lower connection plane E', which is greater than the measure of the board length f of the cap projection 27. For example, the distance b between the connection planes E and E' may correspond to approximately 1.05 to 1.1 times the board length f.

[0078] In the area of ​​the cap edge 7, a depression 46 (compare, for example, Figures 2 and 4) can also be formed, extending in the circumferential direction R with respect to a projection into a plane perpendicular to the central axis y, essentially over the circumference of the connection area 15, so that a step-like course of the cap edge 7 results in the cap wall 5 when viewed in the circumferential direction R. Thus, a step 48 can be present in the course of the cap edge 7.

[0079] The indentation 46 allows the upper connection plane E to be raised towards the cap roof 6, thereby extending the band length 1 of the retaining bands 9, 10 compared to an arrangement of the upper connection plane E in the area of ​​a cap edge 7 without such an indentation 46.

[0080] In this way, a distance b between the connection planes E and E' can be achieved, which can correspond, for example, to approximately 1.1 to approximately 1.4 times, and further, for example, to approximately 1.2 to approximately 1.3 times, the distance c considered in the direction of the central axis y between the cap edge 7 outside the recess 46 and the lower connection plane E'.

[0081] A retaining strap 9, 10 can – particularly with respect to the center line m – have a circumferential extent over an angle ö of about 30 to about 40 degrees, or further, for example, about 33 degrees (compare Figure 13).

[0082] Associated with the connection areas 11, 12, 13 and 14, a tapering 39 in the radial direction of the closure cap 1 can be provided in the retaining band 9, 10. This can result in a hinge-like design which advantageously facilitates the displacement of the installation. Retaining bands 9, 10 are supported during the unscrewing of the closure cap as well as during the insertion of the retaining bands 9, 10 during the screwing-on of the closure cap. Such a tapering 39 is preferably formed continuously in one circumferential direction of the closure cap.

[0083] In the area of ​​the taper 39, which may occur at the first and / or the second connection area and / or at the third and / or the fourth connection area 11, 12, 13, 14, a radial thickness d' may be given, which may, for example, correspond to approximately 0.7 to approximately 0.8 times the radial thickness d of the retaining band 9, 10 outside the taper 39 (compare Figures 11 and 14).

[0084] As can be seen further from the illustrations, although not necessarily required, the tapers 39 can be assigned to a radially outer area, so that in the area of ​​each taper 39 a stepped transition can occur radially outside between the non-tapered section of the retaining band 9, 10 and the taper 39, as well as possibly between the taper 39 and the cap edge 7 and / or the connection area 15.

[0085] Radially inside, an essentially flat transition can occur between the non-tapered section of the retaining band 9, 10 and the taper 39, as well as, if applicable, between the taper 39 and the cap edge 7 and / or the connection area 15.

[0086] The band length 1 of the retaining band 9 or 10 considered along the center line m, starting from the first or second connection area 11, 13 in the first connection level E up to the The third or fourth connection area 13, 14 in the second connection level E' can, for example, correspond to approximately 3 to 4 times the board length f of the cap projection 27.

[0087] Outside the connection area recesses 34, the connection area 15 can have an axial height u' (for example, Figure 3) which can be approximately 1.5 to 3 times, or further approximately 2 to 2.5 times, the axial height u (compare, for example, Figure 3) of a first band section 9' or 10', or approximately 0.5 to 0.9 times, or further, for example, approximately 0.7 times, the height h of the retaining ring 8 in the circumferential direction outside the connection area 15.

[0088] In the area of ​​the connection area recess 34, an axial height u" (compare, for example, Figure 3) may be given, which may correspond, for example, to approximately 0.3 to approximately 0.7 times, and further, for example, to approximately 0.5 times, the height u' of the connection area 15 outside the connection area recesses 34.

[0089] Furthermore, the radial thickness d of a retaining band 9, 10, considered with respect to the central axis y, can be chosen to be smaller than the height u of the retaining band 9, 10. For example, a thickness d (compare, for example, Figure 11) can be chosen that corresponds to approximately 50 to approximately 60 percent of the height u.

[0090] If necessary to further stabilize the connection area 15, it can have at least a partial radial enlargement 40 in the circumferential direction R compared to the remaining retaining ring 14, which extends in particular from the counter-projection 35 in the circumferential direction R can extend beyond the area of ​​the essentially V-shaped receptacle 38 to beyond the third connection area 13 (compare Figure 2).

[0091] In this respect, two areas with radial enlargements 40 and 40' can be considered in the circumferential direction R, which can be directly adjacent to each other in the circumferential direction R and can have different radial projection dimensions r and r' (compare for example Figure 10) beyond the outer surface of the connection area 15 outside the enlargement 40, 40'.

[0092] This can result in a further radial enlargement 40' (compare, for example, Figure 7) compared to the enlargement 40 with reduced overhang r' starting from the counter-projection 35 in the circumferential direction R to beyond the fourth connection area 14.

[0093] The radial overhang r or r' of the radial enlargement 40, 40' beyond the radial outer surface of the connection area 15 outside the enlargement 40, 40' can, for example, correspond to approximately 0.6 times and, for example, approximately 1.1 times the radial thickness e of the retaining ring 8 outside the connection area 15 with respect to the radial enlargement 40'.

[0094] The counter-projection 35, preferably formed in the area of ​​the radial enlargement 40, can have a radial projection r'" beyond the outer surface of the connection area 15 outside the enlargement 40, 40' (compare Figure 9), which can essentially correspond to the radial projection r of the associated enlargement 40. (compare Figures 6 and 8). On the upper side, corresponding to the counter-projection edge 37, a plateau-like surface 41 can result.

[0095] In a further embodiment, a counter-grip bead 42 extending in the circumferential direction R can be formed along the radially outward directed edge edge 37 (compare figure 9).

[0096] In a further embodiment, the counter-projection 35 can have radially outwardly open recesses 43. In the illustrated embodiment, two such recesses 43 are provided one above the other.

[0097] The cap projection 27 can extend axially downwards from the connection plane E towards the connection area 15 in a substantially uniform radial direction (compare Figure 19). In a vertical plane, the cap projection 27 can have a substantially triangular shape, with a maximum radial projection r" extending beyond the outer surface of the cap wall 5. This projection r" can essentially correspond to the projection r in the area of ​​the radial enlargement 40 and / or the projection r'" of the counter-projection 35.

[0098] This results in an inclined surface 45 sloping from the free end 28 of the cap projection 27 towards the central axis y, preferably ending approximately in the region of the cap wall 5. In this respect, it can be an inclined surface 45 extending from the cap wall 5 and sloping down towards the free end 28 of the cap projection 27.

[0099] On the inclined surface 45, two to four ridges 44 extending in a line-like circumferential direction R (compare figure 19) can be formed on the outside, spaced apart from each other in the direction of the central axis y.

[0100] To fit the container 3 with the closure cap 1, the closure cap 1, together with the retaining straps 9 and 10 connected via the tear-off tabs 16 and the retaining ring 8, is screwed onto the opening 2 of the container 3, whereby the projections 26 of the retaining ring 8 are bounced over the first radial projection 24 to obtain an underhand grip position. Alternatively, a complete bounce-on action can also be performed, essentially without rotation.

[0101] To move the closure cap 1 into an open position, and in particular into a pivoting open position, the closure cap 1 is unscrewed via the threaded engagement (see arrow w in Figure 15). Due to the barbed rear grip of the projections 26 on the first radial projection 24, a successive separation of the cap edge 7 from the retaining ring 8 is achieved during the screw displacement. When the closure cap 1 is opened for the first time, this leads to the separation of the tear-off tabs 16.

[0102] During this twisting movement, the cap projection 27 can be dragged along, resulting in a rudder-like sliding of the cap projection 27 over its projection edge 30 along the counter-projection edge 36, so that the cap projection 27, guided by the retaining bands 9 and 10 which also rise during this twisting movement via the hinge-like connection areas 11, 12, 13 and 14, is brought into a final position in which the cap projection 27 is aligned above the counter-projection 35 (compare figures 16 to 19).

[0103] With the thread engagement released, the closure cap 1 can be pivoted to the side into a swivel-open position (see arrow v in Figure 20).

[0104] During the pivoting movement of the closure cap 1, a preferably only elastic bending of the retaining straps 9 and 10 occurs outside of an attachment area 11, 12, 13, 14.

[0105] The cap 1 is held in a user-friendly pivoting open position, preferably by a latching mechanism, thus allowing the contents of the container to be poured out unhindered. The latching mechanism can be achieved by the corresponding engagement of one of the latching ridges 44 on the cap projection side with the corresponding counter-latching ridge 42 on the opposite projection side (see Figures 20 to 22) or even just the edge of the opposite projection (see, for example, Figure 28). The latching position is stabilized by the retaining straps 9 and 10, which may be stretched in this latching position. As can also be seen, for example, in Figure 21, the engagement between the cap projection 27 and the counter-projection 35 is preferably located above a plane E" in this cross-sectional view and is achieved by the connection areas 14 and 12 of the retaining strap 10 or (not visible in Figure 21) the connection areas 13 and 11 of the retaining strap 9.This also supports the desired stable open position of the closure cap 1.

[0106] A closure cap 1 is provided which is held stably in the advantageous pivoting open position, thus enabling unimpeded pouring of the container contents through the closure cap 1. The favorable ratio achieved between the projection length f of the cap's projection 27 and the band length 1 of the retaining bands 9 and 10 improves handling during opening and closing of the closure cap 1. Furthermore, in the open position, a distance of the closure cap 1, essentially radial to the opening 2, is achieved by supporting and locking the closure cap 1 against the counter-projection 35 molded onto the retaining ring 8.

[0107] One, several, or all of the connection areas 11, 12, 13, 14 are preferably designed to be significantly more flexible than the retaining straps 9, 10. This can be achieved, for example, by a suitably thin and / or long design of the respective tapered section 39. Preferably, the design is also such that, in the open state (see, for example, Figure 29), a retaining strap 10 extends with its broad side substantially in the direction of the central axis x of the container. Furthermore preferably, the other retaining strap 9, in the open state, is also directed with its broad side partly in the direction of the central axis x and partly at an acute angle of more than 30 degrees to said central axis x. This angle is obtained from a side view in which the central axis x appears as a continuous line.

[0108] While one retaining band 10 preferably runs continuously, although not ideally always in the same direction along its length, essentially looking upwards or downwards, the other retaining band 9 is in The same opening position is clearly twisted around its longitudinal axis, resulting in different orientations of the broad side along the longitudinal axis. This is achieved by the already mentioned design of the tapered sections 39 in the connection areas and also by the preferably rectangular cross-section of the retaining straps 9, 10.

[0109] With regard to the described closure cap 1 with a central axis y, a circumferential cap wall 5 and a cap cover 6 formed substantially perpendicular to the cap wall 5, for a container 3 provided with an opening 2, wherein the cap wall 5 has a lower cap rim 7 facing away from the cap cover 6 and a retaining ring 8 with two retaining bands 9, 10 is attached to the cap rim 7, wherein the retaining bands 9, 10 transition into the cap rim 7 in a first and a second attachment area 11, 12 and into the retaining ring 8 in a third and a fourth attachment area 13, 14, wherein the retaining bands 9, 10 also form a permanent connection between the retaining ring 8 and the closure cap 1 when the closure cap 1 is open, wherein the retaining ring 8 is further formed as a closed circumferential ring with a connection area 15 between the first and the fourth connection area 11, 14 of the retaining straps 9,10, is also preferred that the attachment areas 11, 12, 13, 14 of the retaining bands 9, 10 on the closure cap 1 extend approximately in the direction of the central axis y, while at least with respect to one retaining band 9, 10, that a relief section 49 extending in the same direction is separated in the circumferential direction R by areas of both the retaining ring 8 and the cap wall 5 or only the cap edge 7 of the cap wall 5, wherein the areas of the retaining ring 8 and the cap wall 5 are formed in the direction of the central axis y and wherein further the attachment areas 11, 12, 13, 14 of the retaining bands 9, 10 are formed offset from each other on the cap wall 5 in the circumferential direction R.

[0110] Reference can be made, for example, to Figure 2. There, the cut-out section 49 is shown on the side of the retaining band 10 facing away from the counter-projection 35. However, it is not essential whether such a counter-projection 35 and / or a cap projection 27 is actually present or not. In this context, it can also refer to respective wall areas, starting from the cap edge on one side and the retaining ring on the other, which wall areas now lie opposite each other in the direction of the central axis but do not overlap circumferentially.

[0111] This free-cutting section 49, which is also given in a comparable, albeit shorter, design on the corresponding side of the retaining band 9, enables the favorable design and also relocation of the retaining band 10 or 9.

[0112] As can be seen further, in the exemplary embodiment and preferably (see also Figure 7), this cut-out section 49 is designed with an acute angle to the central axis y of the closure cap 1 with respect to the retaining band 10. In contrast, the cut-out section 49 on the corresponding side of the retaining band 9 is preferably designed to be oriented essentially in the same direction as the central axis y.

[0113] The free-cut section 49 preferably extends, with respect to the retaining band 10, on the one hand, associated with the cap wall, into the free-cut area 17 and on the other hand, but also only more preferably, into a distance area between the retaining ring 8 and the cap edge 7, also referred to as the free-cut area 17, which in the exemplary embodiment and is preferably bridged by one or more breakaway webs 16. However, the transition does not extend to such a free-cut area 17, which is closed off with respect to the free-cut section 49 by a connection area, here the first connection area 11 or the fourth connection area 14.

[0114] In the same way, as described above, the free-cutting area 17 can be interspersed with one or more tear-off ribs 16.

[0115] The free-cut area 17 preferably extends at right angles or including an obtuse angle to the free-cut section 49 with respect to a transition to this free-cut section 49.

[0116] The transition of the free-cut section 49 into the free-cut area 17 and / or the distance area between the retaining ring 8 and the cap edge 7 is designed above the fourth connection area, i.e., the lower connection area of ​​the retaining band 10 to the retaining ring 8, in one of the retaining bands, preferably the retaining band 10 of the embodiment, while in another of the retaining bands, here the retaining band 9 of the embodiment, the transition into the distance area provided there alone between the retaining ring 8 and the cap edge 7 is designed below the connection area 11 of this retaining band 9 to the cap edge 7.

[0117] The clear-cut section 49 does not need to be particularly wide. It can also be chamfered or cut into as described earlier. Preferably, however, it has a width that corresponds to a distinct gap or, for example, to half or more of the height u. All further embodiments described above and below with regard to the closure cap 1 can be implemented with the free-cutting section(s) 49 with respect to the closure cap 1.

[0118] A second embodiment is described below with reference to Figures 23 to 28. The second embodiment preferably corresponds to the embodiment as described first, with the exception of the design of the counter-projection 35. The preceding paragraphs are to be interpreted accordingly.

[0039] to

[0118] , but also the sections in the general part of the description, are equally relevant for this further embodiment, without being repeated in detail. The same applies to the figures of the first embodiment, insofar as they have not been modified with regard to the second embodiment.

[0119] In the second embodiment, the counter-projection 35 preferably has recesses 43, comparable to the first embodiment. These recesses 43 (as in the first embodiment) can also be through-openings. However, recesses that have a continuous bottom area are preferred.

[0120] The recesses 43 of the second embodiment are also elongated, in accordance with the first embodiment. However, a corresponding longitudinal axis LI, L2 aligns the recesses 43 of the second embodiment such that it forms an acute angle E with the central axis y. The angle E can be, for example, 10 or 20 to 80 degrees, preferably about 30 degrees.

[0121] Furthermore, two recesses 43 with the same longitudinal axis LI, L2 are preferably formed side by side, offset from each other in the circumferential direction. The circumferential width n of a recess 43 preferably corresponds approximately to the extent of the edge edge section 31 of the cap projection 27, measured in the same way. The recesses 43 preferably also extend at least partially over one another.

[0122] In an open state as shown in Figure 28, and on the way to achieving this open state, the cap projection 27 cannot engage in a hooking manner in one or both recesses 43 of this second embodiment. Rather, it slides off them.

[0123] The indentations 43 of this second embodiment do not serve to allow any interlocking with the cap projection 27. Their primary function is to reduce material on the one hand and to stabilize the counter-projection 35 on the other.

[0124] The desired stable position in the open state is preferably achieved solely, as can also be seen in Figure 28, by an interaction of one or both locking ridges 44 with the counter-projection edge 37. In this embodiment, the counter-projection 35 is also preferably designed without a counter-locking ridge 42. Instead, it results only from the (in a certain sense rounded) meeting of the envelope plane of the outer surface of the counter-projection 35 and the surface 41 of the counter-projection 35.

[0125] All other aspects, in particular dimensional and proportionate designs, preferably correspond to those of the first embodiment. List of reference symbols 1 End cap 25 second radial projection 2 Mouth 26 Leading edge 3 Container 27 Cap projection 4 Mouth opening 28 Free end 5 Cap wall 29 V Protrusion edge 6 Cap ceiling 30 V Projection edge 7 Cap edge 31 Edge section 8 Mounting ring 32 Band section edge 9 Retaining strap 33 Strap section edge 9' first band section 34 V connection area-recess 9" second band section 35 counter-projection 10 Retaining strap 36 Counter-projection edge 10' first band section 37 counter-projection edge 10" second tape section 38 recording 11 First connection area 39 Reduction 12 second connection area 40 radial magnification 13 third attachment area 40' radial magnification 14 fourth connection area 41 area 15 Connection area 42 Counter-lock bead 16 Demolition bridge 43 Recess 17 Clearance area 44 Resting bead 18 counter threads 45 inclined surface 19 Mouth wall 46 Depression 20 thread turns 47 edge 21 sealing collar 48 step 22 Sealing bead 49 Free cut section 23 interior surface 24 first radial protrusion a Line G Thread b Distance LI Longitudinal axis c Distance L2 Longitudinal axis d Thickness R Circumferential direction d' Thickness d" Thickness f Protrusion length h Height 1 Length m Centerline r Projection dimension r z Projection dimension r" Projection dimension a Angle r'" Projection dimension ß Angle u Height Y Angle u' Height ö Angle u zz Height E Angle v Arrow w Arrow x Central axis y Central axis E upper connection level E z lower connection level E zz level

Claims

Claims 1. A closure cap (1) with a central axis (y), a circumferential cap wall (5) and a cap cover (6) formed substantially perpendicular to the cap wall (5), for a container (3) provided with an opening (2), wherein the cap wall (5) has a lower cap rim (7) facing away from the cap cover (6) and a retaining ring (8) is attached to the cap rim (7) by means of two retaining bands (9, 10), wherein the retaining bands (9, 10) transition into the cap rim (7) in a first and a second attachment area (11, 12) and into the retaining ring (8) in a third and a fourth attachment area (13, 14), which retaining bands (9, 10) also form a permanent connection between the retaining ring (8) and the closure cap (1) when the closure cap (1) is open, wherein the retaining ring (8) is further closed is formed around the perimeter, with a connecting area (15) between the first and the fourth connecting area (11,14) of the retaining bands (9, 10), wherein the cap wall (5) continues between the first and the second connection area (11, 12) in the direction of the central axis (y), facing away from the cap roof (6), into a cap projection (27), and wherein the connection area (15) of the retaining ring (8) runs below the cap projection (27), characterized in that the third and / or fourth connection area (13, 14) are formed below an end (28) of the cap projection (27) facing the retaining ring (8), and that a height (u~) of the connection area (15) at the third and / or fourth connection area (13, 14) corresponds to half or less of the height (h) of the retaining ring (8) in the circumferential direction R outside the first and fourth connection area (11, 14).

2. Closure cap according to claim 1, characterized in that the third and / or the fourth connection area (13, 14) is connected via a connection plane (E) extending substantially perpendicular to the central axis (y). z ) transitions into the retaining ring (8).

3. Closure cap according to one of the preceding claims, characterized in that the third and / or the fourth attachment area (13, 14) is separated on both sides from the retaining ring (8) by a clearance area (17) extending perpendicularly and / or at an acute angle (β) to the central axis (y).

4. Closure cap according to one of the preceding claims, characterized in that a counter-projection (35) is formed on the connection area (15), which is arranged in the circumferential direction (R) next to the cap projection (27).

5. Closure cap according to one of the preceding claims, characterized in that the connection area (15) has a radial enlargement (40, 40') compared to the remaining retaining ring (8) and that the radial enlargement (40, 40') extends from the counter-projection (35) in the circumferential direction (R) beyond the third and / or the fourth connection area (13, 14).

6. Closure cap according to one of the preceding claims, characterized in that a tapering (39) in the radial direction of the closure cap (1) is provided in the retaining band (9, 10) associated with the connection areas (11, 12, 13, 14).

7. Closure cap according to claim 6, characterized in that the tapering (39) is provided directed radially outwards.

8. Cap according to one of the preceding claims, characterized in that the cap projection (27) has a projection length (f) relative to the cap edge (7) which exceeds the dimension of a height (u) of a retaining band (9, 10) viewed in the direction of the central axis (y).

9. Closure cap according to one of the preceding claims, characterized in that the counter-projection (35) has a structure.

10. Closure cap according to claim 9, characterized in that the structuring is provided by one or more indentations (43).

11. Closure cap according to claim 10, characterized in that a recess (43) is elongated with a longitudinal axis (LI, L2).

12. Closure cap according to claim 11, characterized in that the longitudinal axis (LI, L2) forms an acute angle (E) with the central axis (y).

13. Closure cap according to one of claims 10 to 12, characterized in that a recess (43) is formed with such a small opening area that contact with the counter-projection (35) in an open state of the closure cap (1) is enabled without snagging with regard to a recess (43).

14. Closure cap (1) with a central axis (y), a circumferential cap wall (5) and a cap cover (6) formed substantially perpendicular to the cap wall (5), for a container (3) provided with an opening (2), wherein the cap wall (5) has a lower cap rim (7) facing away from the cap cover (6) and a retaining ring (8) is attached to the cap rim (7) by means of two retaining bands (9, 10), wherein the retaining bands (9, 10) transition into the cap rim (7) in a first and a second attachment area (11, 12) and into the retaining ring (8) in a third and a fourth attachment area (13, 14), wherein the retaining bands (9, 10) also form a permanent connection between the retaining ring (8) and the closure cap (1) when the closure cap (1) is open, wherein the retaining ring (8) is trained in a closed, continuous manner,with a connection area (15) between the first and the fourth connection area (11, 14) of the retaining bands (9, 10), characterized in that the connection areas (11, 12, 13, 14) of the retaining bands (9, 10) on the closure cap (1) extend approximately in the direction of the central axis (y), leaving, at least with respect to one retaining band (9, 10), a relief section (49) extending in the same direction with respect to circumferentially following areas (R) of both the retaining ring (8) and the cap wall (5) or only the cap edge (7) separated only by the relief section (49), wherein the areas of the retaining ring (8) and the cap wall (5) are formed one another in the direction of the central axis (y), and wherein furthermore the connection areas (11, 12, 13, 14) of the retaining bands (9, 10) on the cap wall (5) are formed offset from each other in the circumferential direction (R).

15. Closure cap according to claim 14, characterized in that the cut-out section (49) optionally transitions into a cut-out area (17) with the exception of one or more tear-off tabs (16).

16. Closure cap according to one of claims 14 or 15, characterized in that the free-cut area (17) extends at a right angle or including an obtuse angle to the free-cut section (49) with respect to a transition into the free-cut section (49).

17. Closure cap according to one of claims 14 to 16, characterized in that the transition of the free-cut section (49) into the free-cut area (17), viewed in the direction of the cap lid, is given above the fourth attachment area (14) at one of the retaining bands (9, 10) and / or below the first attachment area (11) at one of the retaining bands (9, 10).

18. Closure cap according to one of the preceding claims, characterized in that a retaining band (9, 10) in the open state points with its broad side substantially in the direction of the central axis (x).

19. Closure cap according to one of the preceding claims, characterized in that a retaining band (9, 10) in the open state points with its broad side partly towards the central axis (x) and partly encloses an acute angle of more than 30 degrees with the central axis (x).

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