EP2906475B1 - Closing cap, container neck, tamper-evident closure, and method for producing a tamper-evident closure - Google Patents

Description

The invention relates to a guarantee closure comprising a closure cap and a container neck. The invention further relates to a container neck. The invention further relates to a method for producing the guarantee closure.

State of the art

The publication WO 2007/031162 discloses a Garantiesschraubverschluss for containers and bottles. The Garantieschraubverschluss consists of a screw cap, which has a hollow cylindrical jacket with internal thread, and an annular guarantee strip, which is connected via predetermined breaking webs with the free edge of the shell. The guarantee strip also has locking elements which are intended for a positive engagement in a formed on a bottleneck abutment. When the warranty screw cap is opened for the first time, the screw cap is rotated and thereby lifted, whereas the guarantee strip is held on the abutment, so that the breakaway bars break at some point during opening. Thus it can be seen that the bottle has already been opened once.

Such Garantieschraubverschlüsse have the disadvantage that sometimes can not be seen at first glance, if the bottle has already been opened once. Such Garantieschraubverschlüsse with screw cap and guarantee band have the further disadvantage that a relatively long neck is required to open the screw cap pleasantly with your fingers.

The document WO 95/14617 discloses a Garantieschraubverschluss comprising a circular head portion and a hollow cylindrical shell, wherein in the jacket a guarantee part is arranged, which is connected via breakable bridges with the jacket. A disadvantage of this Garantieschraubverschluss is the fact that a considerable effort is required to open, and that the opening of the Garantieschraubverschlusses is not always immediately obvious. The opening is then immediately obvious if the entire warranty part has been completely removed.

The document GB2307901 A describes a cap, wherein the guarantee part is arranged with respect to the shell part spaced. The document EP2314520 A1 describes a guarantee closure comprising a plastic closure cap and a container neck with an engagement part. The document US3841512 describes a container neck comprising an engagement member with a projection.

Presentation of the invention

The object of the present invention is therefore to form a more advantageous guarantee closure, the opening of which is easier to see and / or which is also suitable for closing short container necks. The object of the invention is also to form a more advantageous container neck.

This object is achieved with a guarantee closure having the features of claim 1. The dependent claims 2 to 6 relate to further advantageous embodiments. The object is further achieved with a container neck having the features of claim 7. The dependent claims 8 to 12 relate to further advantageous embodiments. The object is further achieved with a method for producing a guarantee closure having the features of claim 14.

The closure cap made of plastic for closing a container comprises a head part and a shell part, wherein the shell part is substantially hollow cylindrical and has a longitudinal axis, wherein the shell part extends from the head part along the longitudinal axis, wherein the shell part at the end opposite the head part an end portion, and wherein the closure cap comprises a guarantee part and bridge parts, wherein the guarantee part is arranged with respect to the shell part spaced and is connected via bridge parts with the end portion of the shell part, and wherein the guarantee part is arranged in the direction of the longitudinal axis along the end portion, so that the Guarantee part is arranged in the radial direction to the longitudinal axis spaced from the shell part and extends in the circumferential direction to the longitudinal axis outside along the shell part.

The object is achieved with a guarantee closure comprising the closure cap, and comprising a container neck, wherein the container neck and the closure cap are mutually movably connected to one another via a thread or via a push-pull connection, so that the closure cap can rotate about the longitudinal axis and / or into The container neck comprises an engagement part, which is connected via a connection point with the container neck, wherein the engagement part extends in the longitudinal direction of the longitudinal axis, and wherein the engagement part is arranged such that the engagement part at extends with the container neck cap along the outside of the shell part, wherein the engagement part has a projection such as a barb, wherein the projection is arranged in the direction of the longitudinal axis between the head part and the guarantee part, and wherein the guarantor Partially projecting radially over the projection to the longitudinal axis, so that the guarantee part during initial opening of the cap comes into contact with the projection and is damaged by this.

The object is further achieved, in particular, with a container neck having a pouring channel extending in the direction of a longitudinal axis, which opens into an outlet opening, wherein the container neck has a front section toward the outlet opening and has a rear section in the direction of the longitudinal axis adjoining the front section, and wherein the container neck on the outside of the front portion has an external thread or an engagement means for fixing a closure cap, wherein the external thread or the engagement means has a depth radially to the longitudinal axis, and wherein the container neck at the rear portion has a connection point and an engagement part, wherein the connection point extends radially to the longitudinal axis, and wherein the engagement part extends from the connection point in the direction of the longitudinal axis and towards the outlet opening, and wherein the container neck has a support part, which is arranged opposite the engagement part, so that between the support member and the engagement part forms a longitudinal axis extending gap, and wherein the support member has radially to the longitudinal axis has a width which is at least as large as the depth of the external thread or the engagement means.

The object is further achieved in particular with a method for producing a guarantee closure by connecting a closure cap to a container neck, wherein a front portion of the container neck is introduced by bouncing or turning into the closure cap, and wherein a guarantee part of the closure cap during the connection of the closure cap the container neck is pressed by the engagement member against a shoulder of the closure cap, so that the guarantee part rests at least temporarily in a defined position on the shoulder during the connection in order to avoid excessive tensile forces on bridge parts during the connection, the bridge parts connect the guarantee part with the closure cap.

The guarantee closure according to the invention has the advantage that its initial opening is usually easily recognizable, since the guarantee part is arranged outside the casing part of the closure cap, and since the guarantee part is damaged during the initial opening of the closure cap, so that the Damaged warranty part is clearly visible from the outside. Advantageously, the damaged warranty part of the surface of the shell portion of the cap from, so that the damaged warranty part is particularly well recognizable. The guarantee closure according to the invention comprises the closure cap with the guarantee part extending at least along a partial section in the circumferential direction of the closure cap, and comprises a container neck, preferably a bottle with a bottle neck, on which the closure cap is fastened. The container neck comprises an engaging part, which is designed and arranged such that the guarantee part is damaged during the opening of the closure cap.

The guarantee closure according to the invention has the advantage that the casing part of the closure cap can be made relatively long in its longitudinal direction. For example, a bottle usually has a bottleneck ring. A known guarantee closure consists of a closure cap which is connected via predetermined breaking points with a guarantee strip, wherein the guarantee strip is arranged immediately after the bottle neck ring, and after the guarantee strip in the direction of the bottle neck successively the predetermined breaking points and the closure cap are arranged. Such a guarantee closure is made relatively long in the direction of the neck of the bottle. In the case of the guarantee closure according to the invention, the guarantee part is arranged to extend outside the closure cap, with the result that the closure cap can be arranged immediately after the bottle neck ring. The length, which was required in the known guarantee closure for the warranty part, can be used in the inventive guarantee closure to increase the length of the cap accordingly. The inventive guarantee closure thus allows the To increase the total length of the cap, or, more advantageously, to leave the total length of the cap at the usual level, and to shorten the bottleneck. This allows the guarantee closure and / or the container neck or bottleneck to be made with less material. In view of the large number of plastic bottles that are produced, the inventive guarantee closure allows significant material savings.

The invention will be described below with reference to several embodiments in detail.

Brief description of the drawings

Fig. 1

eine perspektivische Ansicht eines ersten Ausführungsbeispiels eines Garantieverschlusses;

Fig. 2

eine Seitenansicht eines zweiten Ausführungsbeispiels eines Garantieverschlusses;

Fig. 3

einen Längsschnitt durch den Garantieverschluss gemäss Figur 2;

Fig. 4

einen Querschnitt des Garantieverschlusses gemäss Figur 3 entlang der Schnittlinie A-A;

Fig. 5

eine perspektivische Ansicht des Behälterhalses gemäss Figur 3 ohne aufgesetzten Garantieschraubverschluss;

Fig. 6

einen Längsschnitt durch den Behälterhals gemäss Figur 5;

Fig. 7

eine Seitenansicht der Verschlusskappe gemäss Figur 2;

Fig. 8

einen Längsschnitt durch die Verschlusskappe gemäss Figur 7;

Fig. 9

einen Querschnitt durch die in Figur 8 dargestellte Verschlusskappe entlang der Schnittlinie B-B;

Fig. 10

einen Querschnitt durch die in Figur 1 dargestellte weitere Verschlusskappe entlang der Schnittlinie B-B;

Fig. 11

eine perspektivische Ansicht einer weiteren Verschlusskappe;

Fig. 12a

eine Detailansicht, links unten, der in Figur 8 dargestellten Verschlusskappe;

Fig. 12b

eine Detailansicht, rechts unten der in Figur 8 dargestellten Verschlusskappe;

Fig. 13a

die Detailansicht gemäss Figur 12a während dem Befestigen der Verschlusskappe auf dem Behälterhals;

Fig. 13b

die Detailansicht gemäss Figur 12b während dem Befestigen der Verschlusskappe auf dem Behälterhals;

Fig. 14

einen Längsschnitt durch einen als Push-Pull-Verschluss ausgestalteten Garantieverschluss;

Fig. 15

einen Längsschnitt durch ein weiteres Ausführungsbeispiel eines Eingriffsteils.

The drawings used to explain the embodiments show:

Fig. 1

a perspective view of a first embodiment of a guarantee closure;

Fig. 2

a side view of a second embodiment of a guarantee closure;

Fig. 3

a longitudinal section through the guarantee closure according to FIG. 2 ;

Fig. 4

a cross section of the guarantee closure according to FIG. 3 along the section line AA;

Fig. 5

a perspective view of the container neck according FIG. 3 without attached warranty screw cap;

Fig. 6

a longitudinal section through the container neck according FIG. 5 ;

Fig. 7

a side view of the cap according to FIG. 2 ;

Fig. 8

a longitudinal section through the cap according to FIG. 7 ;

Fig. 9

a cross section through the in FIG. 8 illustrated cap along the section line BB;

Fig. 10

a cross section through the in FIG. 1 shown further closure cap along the section line BB;

Fig. 11

a perspective view of another cap;

Fig. 12a

a detailed view, bottom left, the in FIG. 8 illustrated cap;

Fig. 12b

a detailed view, right below the in FIG. 8 illustrated cap;

Fig. 13a

the detailed view according to FIG. 12a while attaching the cap on the container neck;

Fig. 13b

the detailed view according to FIG. 12b while attaching the cap on the container neck;

Fig. 14

a longitudinal section through a configured as a push-pull closure guarantee closure;

Fig. 15

a longitudinal section through a further embodiment of an engagement part.

Basically, the same parts are given the same reference numerals in the drawings.

Ways to carry out the invention

FIG. 1 shows a perspective view of a first embodiment of a guarantee closure 1 comprising a closure cap 2 and a container neck 3a with a container neck ring 3b and with a non-visible outlet opening 3h. The closure cap 2 comprises a disc-shaped head part 2a and a shell part 2b with a partially structured surface 2c. Along the outside of the jacket part 2b, a plurality of mutually circumferentially spaced guarantee parts 2e are arranged. An engagement part 3d with a projection 3q is arranged on the container neck ring 3b, the engagement part 3d being configured as a hook part and the projection 3q as a barb 3e in the exemplary embodiment shown. During the opening of the closure cap 2, at least one guarantee part 2e will be attached to the barb 3e and thereby damaged, so that due to the condition of the guarantee parts 2e it can be seen from the outside whether the closure cap 2 has already been opened once.

A second embodiment of a guarantee closure 1 comprising a closure cap 2 and a container neck 3a with outlet opening 3h is in the FIGS. 2 to 9 shown. FIG. 2 shows a side view and FIG. 3 a cut of the guarantee closure 1. How out FIG. 3 Obviously, the closure cap 2 comprises a head part 2a as well as a shell part 2b, wherein the shell part 2b is configured substantially hollow-cylindrical and has a longitudinal axis L. The casing part 2b extends from the head part 2a in the direction of the longitudinal axis L, the casing part 2b at the end opposite the head part 2a, such as in the Figures 3 and 7 shown having an end portion 2f. The closure cap 2 comprises an annular guarantee part 2e and a plurality of bridge parts 2i, wherein the guarantee part 2e is arranged radially spaced with respect to the shell part 2b and is connected to the end section 2f of the shell part 2b via bridge parts 2i, the guarantee part 2e extending in the direction of the longitudinal axis L is arranged along or within the end portion 2f, so that the guarantee part 2e is arranged in a direction radial to the longitudinal axis L direction spaced from the casing part 2b and extends in the circumferential direction to the longitudinal axis L outside along the casing part 2b. In an advantageous embodiment, the warranty part 2e, as in the Figures 2 and 7 shown, a plurality of circumferentially spaced vulnerabilities 2k to specify defined break points. In an advantageous embodiment, the surface of the jacket part 2b is provided with a structured surface 2c. In an advantageous embodiment of the guarantee closure, as seen FIG. 3 seen, designed as a rotary closure, wherein the container neck 3a has an external thread 3c, and wherein the closure cap 2 on the inside 2d an external thread 3c adapted internal thread 2h has, so that the closure cap 2 about the longitudinal axis L rotatably from the container neck 3a can be solved.

Like from the Figures 2 . 3 . 5 and 6 the container neck 3a comprises an engagement part 3d, which is connected to the container neck 3a via a connection point 3b, wherein the engagement part 3d extends in the direction of the longitudinal axis L, and wherein the engagement part 3d is arranged such that the engagement part 3d with the Container neck 3 connected cap 2 extends outside along the shell portion 2b. The Engaging part 3d has a barb 3e designed as a projection 3q, wherein the barb 3e is arranged in the direction of the longitudinal axis L between the head part 2a and the guarantee part 2e. The warranty part 2e stands, as from the Figures 2 and 3 can be seen, radially to the longitudinal axis L on the barbs before 3e, so that the guarantee part 2e during the initial opening of the cap 2 comes into contact with the barb 3e and is damaged by this by the guarantee part 2e, for example, torn and / or torn the bridge part 2i and / or the vulnerability 2k is torn. The projection 3q or the barbs 3e can be configured in many different ways, for example as a stop member, which prevents or impedes passage of the guarantee part 2e, and therefore damages the guarantee part 2e.

The in the Figures 2 . 3 . 5 and in particular in FIG. 6 shown container neck 3a has a extending in the direction of a longitudinal axis L Ausgieschanal 3m, which opens into an outlet 3h, wherein the container neck 3a to the outlet opening 3h toward a front portion 3k and in the direction of the longitudinal axis L subsequent to the front portion 3k a rear Section 31 has. The container neck 3a has on the outside of the front portion 3k an external thread 3c or an engagement means 3p for fastening a closure cap 2, wherein the external thread 3c or the engagement means 3p radially to the longitudinal axis L has a depth B1. The container neck 3a has at the rear portion 31 a connection point 3b and an engagement part 3d, wherein the connection point 3b extends radially to the longitudinal axis L, and wherein the engagement part 3d starting from the connection point 3b in the direction of the longitudinal axis L and Outlet opening 3h directed towards. The container neck 3a comprises a support part 3g, which is arranged opposite the engagement part 3d, so that a gap 3o running in the direction of the longitudinal axis L forms between the support part 3g and the engagement part 3d, wherein the support part 3g has a width B2 radially to the longitudinal axis L, which is at least as big as the depth B1. The width B2 can also be greater than the depth B1. How out FIG. 3 visible in an advantageous embodiment, the closure cap 2 in the region of the end portion 2 f an inner diameter which is equal to or slightly larger than the outer diameter of the support member 3 g, so that, as from FIG. 3 it can be seen that the closure cap comes to lie in the region of the end section 2f against the outer surface of the support part 3g. The support member 3g prevents the cap wall from escaping in the direction of the longitudinal axis L, in particular when the projection 3q of the engagement member 3d bears against the guarantee member 2e and damages it. The feature that the width B2 is at least as great as the depth B1 ensures that the end portion 2f of the closure cap 2 can be guided past the external thread 3c during fitting onto the container neck 3a, and that the inside of the end portion 2f of the closure cap 2 at placed on the container neck 3a closure cap 2 almost or touching rests against the outer surface of the support member 3g.

The container neck 3a is as out FIG. 6 is configured such that the engagement part 3d at the junction 3b opposite end portion has a projection 3q, wherein the projection 3q is aligned with the support member 3g and protrudes into the gap 3o. In the illustrated embodiment, the engagement part 3d comprises a barb 3e, wherein the Projection 3q is a part of the barb 3e, so that the barb 3e is directed toward the support part 3g and projects into the gap 3o. The engagement part 3d has, in the direction of the outlet opening 3h, a guide surface 3i which runs transversely to the longitudinal axis L, such that the guide surface 3i forms a tapering gap 3n in the direction of the connection point 3b. Advantageously, the container neck 3a, as in the FIGS. 4 and 5 shown, two engagement parts 3d, which are arranged offset with respect to the longitudinal axis L by 180 degrees. Advantageously, the connection point 3b is designed as a container neck ring 3b. In the illustrated embodiment, the support member 3g in the circumferential direction as wide as the engagement part 3d configured. In a further advantageous embodiment, the support member 3g is designed as a with respect to the longitudinal axis L by 360 ° circumferential projection. The container neck 3a could also comprise a plurality of engagement parts 3d and support parts 3g, for example 3, 4, 5 or 6, which are distributed in the circumferential direction.

The guarantee closure 1 requires at least a single engagement part 3d with projection 3q as a barb 3e. In an advantageous embodiment, a plurality of engagement parts 3d with projections 3q or barbs 3e are arranged spaced apart in the circumferential direction. Particularly advantageous is, as in the Figures 2 . 3 . 5 and 6 illustrated, an arrangement in which two engagement parts 3d arranged mutually offset by 180 degrees.

The connection point 3b can be configured in one possible embodiment as a bridge part, with in the circumferential direction of the same or a similar width as the engaging part 3d. In an advantageous embodiment, the connection point 3b, as in the FIGS. 3 to 6 represented as a container neck ring 3b configured.

The warranty parts 2e may be configured in a variety of ways. The closure cap 2 comprises at least one guarantee part 2e, which is connected to the shell part 2b via bridge parts 2i. The guarantee part 2e extends in the circumferential direction of the longitudinal axis L by at least 5 degrees. Advantageously, as in FIG. 1 and 10 shown, arranged in the circumferential direction of the longitudinal axis L a plurality of mutually spaced warranty parts 2e. In an advantageous embodiment, the closure cap 2, as in FIG. 11 shown, two guarantee parts 2e, which are mutually offset in the circumferential direction of the longitudinal axis L by 180 degrees. In a further advantageous embodiment, the closure cap 2 comprises an odd number of guarantee parts 2e and / or an odd number of bridge parts 2i. This ensures that, for example, at the in FIG. 5 shown arrangement with two offset by 180 degrees engaging parts 3d at least one of the two engagement parts 3e a guarantee part 2e is applied in such a way that this reliable and preferably reproducibly damaged during opening similar.

In a further advantageous embodiment, the closure cap 2, as in the Figures 2 . 7 and 9 shown, a single warranty part 2e, wherein the guarantee part 2e is designed annular and extends over 360 degrees.

In an advantageous embodiment, the closure cap 2, as in the detail views according to FIGS. 12a and 12b represented in such a way configured that the shell portion 2b on the outer surface has a shoulder 21, wherein the shoulder 21 is offset starting from the attachment point of the bridge part 2i with the shell part 2b in the direction of the head part 2a out, the paragraph 21 to form a support surface 2n on the Jacket part 2b protrudes. The paragraph 21 and the guarantee part 2e and the bridge part 2i are, as in the detail views according to FIGS. 13a and 13b illustrated, designed and arranged so mutually adapted that when a force toward the head part 2a acts on the guarantee part 2e, for example, as in the FIGS. 13a, 13b represented by the barbs 3e, the guarantee part 2e is slid toward the shoulder 21, so that the guarantee part 2e rests on the shoulder 21 or on the support surface 2n. This embodiment has the advantage that during manufacture of the guarantee closure 1, that is to say during the initial loading of the container neck 3a with the closure cap 2, it is ensured that the at least one guarantee part 2e and / or the bridge parts 2i are not damaged, since the guarantee part 2e, as in the Figures 13a and 13b shown, may rest against the shoulder 21 or on the support surface 2n. The engagement part 3d or the barbs 3e advantageously has, as in the Figures 13a and 13b represented, to the container neck 3a and the casing part 2b toward a longitudinal axis L obliquely extending guide surface 3i, wherein the guide surface 3i toward the connection point 3b towards the container neck 3a approaches, and forms a tapered gap 3n. This embodiment has, as in the Figures 13a and 13b illustrated, the advantage that the guarantee part 2e is accurately supplied to the shoulder 21 and the support surface 2n. In an advantageous embodiment, the container neck 3a, as in the FIGS. 3, 4 and 6 shown, a support member 3 g, wherein the support member 3 g is preferably arranged opposite the engagement part 3 d, in which in the Figures 13a and 13b state shown to prevent escape of the jacket part 2b in the direction of the longitudinal axis L out. In addition, prevent the support members 3g even when first opening the guarantee closure 1 a possible escape of the shell part 2b and thus the guarantee part 2e in the direction of the longitudinal axis L out. The support member 3g thus ensures a reliable and reproducible damage to the warranty part 2e when first opening the guarantee closure. 1

FIG. 14 shows in a longitudinal section a further embodiment of a guarantee closure 1. The cap 2 and the container neck 3a are adapted to each other adapted that a so-called push-pull connection is formed, that is, the cap 2 by a linear movement in the direction of the longitudinal axis L. separated from the container neck 3a, and if necessary, can be placed again. Unlike the in FIG. 3 illustrated embodiment, the in FIG. 14 embodiment shown no thread 3c, 2h, but preferably circular engagement means 2p, 3p, which snap each other, and which hold the cap 2 in the position shown, the cap 2 can be removed and replaced, and wherein the first time removing the cap 2 the warranty part 2e is damaged.

FIG. 15 shows in a detailed view of another embodiment of an engagement part 3d, which in contrast to the in FIG. 3 illustrated embodiment a rectangular designed Projection has 3q, which rests on the removal of the cap 2 on the guarantee part 2e and this damaged. In a further embodiment, as indicated by the dashed line 3r, the support part 3g could be dispensed with by the outer wall of the container neck 3a extending along the line 3r. If the jacket part 2b of the closure cap 2 is made so stable that it does not deform or only insignificantly in the direction of the longitudinal axis L when the closure cap 2 is opened in the region of the engagement part 3d, the support part 3g could be dispensed with.

As in the Figures 2 and 3 illustrated, the guarantee closure 1 is configured in an advantageous embodiment such that the closure cap 2 has an outer diameter D, that the container neck ring 3b aligned end 2m of the cap 2 is spaced in the direction of the longitudinal axis L with a distance L2 to the container neck ring 3b, and that the Distance L2 is less than 2% of the outside diameter D. Preferably, the distance L2 is less than 0.5 mm. An advantage of this embodiment is that the height H of the closure cap 2 can be made particularly large, so that the shell part 2b is configured correspondingly long, so that the fingers can be very pleasantly applied to the shell part 2b or to the structured surface 2c. In previously known closure caps 2, the problem sometimes arises that the closure cap 2 has a small height H, so that the closure cap 2 is difficult to open. The closure cap 2 according to the invention has the advantage that it can be produced at a comfortable height H despite the short container neck 3a. The inventive cap 2 also has the Advantageous that the length of the container neck 3a can be reduced, and the cap 2 still has a pleasant height for operating with his fingers H. By the shortened container neck 3a material can be saved.

The guarantee closure 1 is advantageously manufactured such that the closure cap 2 is connected to the container neck 3a by inserting a front portion 3k of the container neck 3a by bouncing or turning into the closure cap 2 by a guarantee part 2e of the closure cap 2 during the connection of the closure cap 2 with the container neck 3a is pressed by the hook part 3d against a shoulder 21 of the cap 2, and by the guarantee part 2e at least temporarily rests during the connection in a defined position on the shoulder 21 to avoid excessive tensile forces on the bridge parts 2i during the connection ,

Claims (14)

1. A tamper-evident closure (1) comprising a closing cap (2) made of plastic and a container neck (3a), wherein the container neck (3a) and the closing cap (2) are connected to each other in a mutually movable manner via a thread or a push-pull connection, such that the closing cap (2) is releasable from the container neck (3a) by being rotatable about the longitudinal axis (L) and/or by being movable in the direction of the longitudinal axis (L),
   wherein the container neck (3a) comprises an engagement part (3d) which is connected to the container neck (3a) via a connection site (3b), wherein the engagement part (3d) extends in the direction of extension of the longitudinal axis (L), and wherein the engagement part (3d) is arranged in such a way that the engagement part (3d) extends along the outside of the jacket part (2b) when the closing cap (2) is connected to the container neck (3a), characterized in that the closing cap (2) comprises a head part (2a) and a jacket part (2b), wherein the jacket part (2b) is shaped substantially like a hollow cylinder and has a longitudinal axis (L), wherein the jacket part (2b) extends from the head part (2a) along the longitudinal axis (L), wherein the jacket part (2b) has an end portion (2f) at the end opposite the head part (2a), and wherein the closing cap (2) comprises a tamper-evident part (2e) and bridge parts (2i), wherein the tamper-evident part (2e) is arranged at a distance from the jacket part (2b) and is connected to the end portion (2f) of the jacket part (2b) by bridge parts (2i), and wherein the tamper-evident part (2e) is arranged in the direction of extension of the longitudinal axis (L) along the end portion (2f), such that the tamper-evident part (2e) is arranged at a distance from the jacket part (2b) in a direction radial to the longitudinal axis (L) and extends in a circumferential direction to the longitudinal axis (L) along the outside of the jacket part (2b), and wherein the engagement part (3d) has a projection (3q), wherein the projection (3q) is arranged in the direction of extension of the longitudinal axis (L) between the head part (2a) and the tamper-evident part (2e), and wherein the tamper-evident part (2e) protrudes past the projection (3q) radially with respect to the longitudinal axis (L), such that, when the closing cap (2) is being opened for the first time, the tamper-evident part (2e) comes into contact with the projection (3q) and is damaged by the latter.
2. The tamper-evident closure as claimed in claim 1, characterized in that the engagement part (3d) has, toward the container neck (3a), a guide face (3i) extending obliquely with respect to the longitudinal axis (L), wherein the guide face (3i), in the direction toward the connection site (3b), approaches the container neck (3a).
3. The tamper-evident closure as claimed in claim 1 or 2, characterized in that the engagement part (3d) comprises a barb (3e), wherein the projection (3q) is part of the barb.
4. The tamper-evident closure as claimed in one of claims 1 through 3, characterized in that the container neck (3a) comprises a support part (3g), and in that the support part (3g) is arranged opposite the engagement part (3d).
5. The tamper-evident closure as claimed in one of claims 1 through 4, characterized in that the connection site (3b) is designed as a container neck ring (3b).
6. The tamper-evident closure as claimed in claim 5, characterized in that the closing cap (2) has an external diameter (D), in that the end (2m) of the closing cap (2) oriented toward the container neck ring (3b) is spaced apart from the container neck ring (3b) by a distance (L2) in the direction of the longitudinal axis (L), and in that the distance (L2) is less than 2% of the external diameter (D).
7. A container neck (3a) having a pour channel (3m) which extends in the direction of a longitudinal axis (L) and which opens into an outlet opening (3h), wherein the container neck (3a) has, toward the outlet opening (3h), a front portion (3k) and, adjoining the front portion (3k) in the direction of the longitudinal axis (L), a rear portion (31), and wherein the container neck (3a) has, on the outside of the front portion (3k), an outer thread (3c) or an engagement means (3p) for securing a closing cap (2), wherein the outer thread (3c) or the engagement means (3p) has a depth (B1) radial to the longitudinal axis (L), and wherein the container neck (3a) has, in the rear portion (31), a connection site (3b) and an engagement part (3d), wherein the connection site (3b) extends radially with respect to the longitudinal axis (L), and wherein the engagement part (3d), starting from the connection site (3b), extends in the direction of the longitudinal axis (L) and toward the outlet opening (3h), characterized in that the container neck (3a) has a support part (3g) which is arranged opposite the engagement part (3d), such that a gap (3o) extending in the direction of the longitudinal axis (L) forms between the support part (3g) and the engagement part (3d), and wherein the support part (3g) has a width (B2), radial to the longitudinal axis (L), which width (B2) is at least as great as the depth (B1).
8. The container neck as claimed in claim 7, characterized in that the engagement part (3d) has a projection (3q) on the end portion opposite the connection site (3b), wherein the projection (3q) is oriented toward the support part (3g) and protrudes into the gap (3o).
9. The container neck as claimed in claim 8, characterized in that the engagement part (3d) comprises a barb (3e), wherein the projection (3q) is part of the barb (3e), such that the barb (3e) is oriented toward the support part (3g) and protrudes into the gap (3o).
10. The container neck as claimed in one of claims 7 through 9, characterized in that the engagement part (3d) has, in the direction toward the outlet opening (3h), a guide face (3i) which extends transversely with respect to the longitudinal axis (L), in such a way that the guide face (3i), in the direction toward the connection site (3b), forms a narrowing gap (3n).
11. The container neck as claimed in one of claims 7 through 10, characterized in that it comprises two engagement parts (3d), which are arranged offset by 180 degrees with respect to the longitudinal axis (L).
12. The container neck as claimed in one of claims 7 through 11, characterized in that the connection site (3b) is designed as a container neck ring (3b).
13. A container (3) or container neck (3a) comprising a tamper-evident closure as claimed in one of claims 1 through 6.
14. A method for producing a tamper-evident closure (1) as claimed in one of claims 1 through 6 by connecting the closing cap (2) to a container neck (3a) as claimed in one of claims 7 through 12, characterized in that a front portion (3k) of the container neck (3a) is inserted into the closing cap (2) by pushing or turning, and in that a tamper-evident part (2e) of the closing cap (2), during the connection of the closing cap (2) to the container neck (3a), is pressed through the engagement part (3d) against a shoulder (21) of the closing cap (2) in such a way that, during the connection, the tamper-evident part (2e) bears at least temporarily in a defined position on the shoulder (21), in order to avoid excessive tensile forces on the bridge parts (2i) during the connection.

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