Hinged closure made of plastic

Abstract

The invention relates to a hinged closure (11) which is made of plastic and comprises a spout (15) having a casing (17) for securing the closure (11) to a container (13) and for drinking from the container (13), and having a lower edge (22) and a neck (23) which adjoins the casing (17) and surrounds a spout opening (25), and a closure cap (27) connected to the spout (15), which can be pivoted relative to the spout (15) from a closed position into an open position and vice versa. In addition, the hinged closure (11) has a tamper-proof element which indicates whether the original seal of the hinged closure (11) is still intact. The tamper-proof element has at least one movable first arm (35a) with a first and second end. Before the closure is opened for the first time, the at least one first arm (35a) is accommodated in a recess which tapers in the direction of the first end of the arm (35a) and correspondingly has an opening in the form of a narrow point, through which the arm (35a) is pulled during the first opening of the closure cap (27).

Description

[0001] Plastic flip-lock closure

[0002] Field of invention

[0003] The invention relates to a hinged closure made of plastic according to the preamble of claim 1 and a combination of a hinged closure and a container according to claim 26.

[0004] State of the art

[0005] In the field of plastic closures, flip-top closures with a hinged cap are known for sealing plastic bottles. The cap allows for particularly quick resealing of the bottle, making it especially suitable for use during sports activities. The cap is attached to the top of a retaining sleeve by means of a hinge. The retaining sleeve, in turn, screws onto the neck of the bottle. To assure the user that the flip-top closure is unopened and sealed before first use, it is common practice to incorporate a tamper-evident seal, often also called a warranty seal, first-opening guarantee, or tamper evidence seal.

[0006] Such a flip-top closure with a tamper-evident seal is disclosed in JP 5 877 561 B2. A first and a second tamper-evident arm are formed at the lower edge of the cap and at the upper edge of the retaining sleeve, respectively. Before the flip-top closure is opened for the first time, the first arm lies above the second arm. When the cap is closed again, the first arm can no longer be positioned below the second arm, as the latter is in the way. Therefore, after the initial opening, the first arm is always necessarily above the second arm. This position indicates to the user that the flip-top closure has already been opened. However, the two arms lie close together in both possible positions, as both arms are movably molded onto the cap and the retaining sleeve, respectively, and can press against each other. Consequently, it is not immediately apparent to the user whether the flip-top closure has already been opened or not.Furthermore, the positions of the first and second arms are so similar that it is ambiguous which position indicates the closed state of the clasp. In addition, the clasp is manipulable, as the arms can, for example, be manually returned to their original position by moving the second arm upwards and threading the first arm under the raised second arm.

[0007] Object of the invention

[0008] The disadvantages of the described state of the art result in the task of creating a hinged closure where it is immediately apparent whether it has already been opened or is still originally closed.

[0009] The problem is solved in a plastic flip-top closure by the features listed in the characterizing section of claim 1. Further developments and / or advantageous embodiments are the subject of the dependent claims.

[0010] The invention is characterized in that at least one arm is received in a recess before the initial opening. This recess tapers towards the first end of the arm and accordingly features a constriction, the size of which is fixed, through which the arm is drawn during the initial opening of the closure cap. In other words, the hinged closure is designed such that the arm is positioned in the recess before the initial opening. The recess narrows towards the first end and provides the constriction. When the closure cap is first opened, the arm is moved through this opening. The arm can also be described as a lever, a projection, or a leg. The recess is a depression, a gap, or a notch in the hinged closure.This improved tamper-evident seal offers a very high level of protection against manipulation, as it is impossible to reinsert the arm into the recess when reclosing the snap closure. This would at least bend the arm and, alternatively or additionally, destroy it. The fixed size of the constriction makes reinserting even one arm virtually impossible. Furthermore, initial opening is easily identifiable, as the recess is completely clear after the cap is opened, and no arm remains within it.

[0011] In a particularly preferred embodiment of the invention, the first arm is integrally formed at the upper edge of the casing, and the constriction is provided at the lower edge of the closure cap. The first arm is located directly at the upper edge of the casing, and the constriction is located at the lower edge of the closure cap, opposite the upper edge. Each edge acts as a boundary; "top" and "bottom" indicate a corresponding arrangement of each edge with respect to a longitudinal direction of the flip-top closure during intended use. This arrangement of the at least one arm ensures that, during intended use of the flip-top closure, particularly when drinking from it, the arm does not protrude obstructively from the closure cap when the cap is opened.

[0012] In a further particularly preferred embodiment of the invention, the first arm is integrally formed at the lower edge of the closure cap, and the constriction is provided at the upper edge of the casing. In this embodiment, the first arm is positioned directly at the lower edge of the closure cap, and the constriction is located at the upper edge of the casing. In this embodiment, the entire recess is particularly visible after the initial opening, and the initial opening is immediately recognizable, since the window is particularly large when the arm is outside the recess.

[0013] Advantageously, the second end of the arm is beveled towards either the top or bottom edge. The second end of the arm, opposite the first, is designed to slope towards the top or bottom edge. This facilitates the arm's movement when closing the cap. The steeper the bevel of the second end, the easier it is to move the arm outwards when twisted around its first hinged end.

[0014] It proves advantageous if the chamfer of the second end is achieved by a curve in the arm. In this case, the second end of the arm is rounded, giving it a curved shape. Sliding along this curve allows the arm to be guided outwards particularly easily and precisely when the cap is closed.

[0015] In another preferred embodiment of the invention, the second end, after being pulled out of the recess, is locked into place at the top or bottom edge when the cap is closed for the first time. The second end of the arm, which is removed from the recess during the initial opening, locks into place at either the top or bottom edge when the cap is closed for the first time; that is, it snaps or hooks into place. Because the arm is held against the casing in such a folded position and does not protrude beyond the top edge of the casing, it completely exposes the recess, and the fact that the cap has already been opened is particularly easy to see. Furthermore, the fully folded arm does not interfere with the user's drinking.

[0016] Advantageously, the second end can be locked at the top or bottom edge by being pressed into a groove provided at the top or bottom edge. The second end of the arm then locks into place at one of the two edges, where it can be moved into a designated guide, i.e., into the groove at the corresponding edge. As already explained in the previous paragraph, the arm is completely folded into the groove and does not protrude beyond the top or bottom edge.

[0017] If the recess preferably has a trapezoidal cross-section, then the arm can have a greater length, since it is held along one leg of the trapezoid in the recess in front of the initial opening. This makes the arm more visible in front of the initial opening. For example, the two parallel base sides can be arranged perpendicular to the longitudinal direction of the flap closure, and in particular, the longer base side can be positioned above the shorter base side.

[0018] It is advantageous if the constriction is formed by at least one first, fixed projection, thus ensuring that the size of the constriction remains unchanged. In contrast to the prior art, which features a movable arm instead of a fixed projection, tamper resistance and the detectability of the initial opening are significantly improved. The first projection is preferably formed by means of a raised section located on the upper edge. This is particularly advantageous when the recess is formed on a retaining ring, which in turn is clipped, i.e., snapped, into the casing – that is, when the casing and the closure cap are made in two parts and the depth of the recess is limited by the height of the retaining ring.

[0019] Advantageously, the constriction is formed by a first and a second fixed projection, thus making the size of the constriction unchangeable. This allows the recess to be adapted to two second ends of the first arm or of the first and second arms.

[0020] In a further preferred embodiment, the at least one projection has a directionally angled upper surface which interacts with the second end of the arm when the cap is closed and deflects it outwards. This means that the projection has an angled surface by means of which the arm can be redirected outwards at its second end when reclosing. The surface of the projection designed in this way facilitates the movement of the arm into the position in which it indicates the opening of the cap (e.g., the locking position).

[0021] Advantageously, a ring-shaped section is formed within the cap, surrounding the sealing element. The cap features an internal ring-shaped section that encloses the sealing element. The sealing element is a component that, for example, prevents or at least limits the passage of liquids, gases, and / or solids. The ring-shaped section, which also forms an inner wall of the cap, incorporates a snap-fit ​​mechanism. This allows the cap to lock securely onto the spout when closed.

[0022] Advantageously, at least one arm is positioned in a recess above the lower edge. This allows the depth of the recess to be kept to a minimum, which is particularly advantageous when the recess is provided in the retaining ring. Furthermore, the arms have sufficient space to be bent outwards.

[0023] Advantageously, the recess and / or alternatively or additionally the indentation in a wall section of the closure cap is provided. This means that the recess and / or alternatively the indentation is designed as an unsealed opening or an uncovered depression in a wall that partially borders the closure cap to its surroundings. For the reliable function of the tamper-evident seal, the recess or indentation must be arranged vertically, which is achieved by providing it in the wall section.

[0024] It is advantageous if the first and second arms each have a second end positioned symmetrically within the recess before the cap is opened for the first time, and symmetrically outside the recess after the first opening. This ensures that the two arms are positioned identically – inside the recess before the initial opening and outside of it after. The symmetrical arrangement of the arms improves the visual recognition of the tamper-evident seal, making it more easily identifiable than with a single arm. Such an arrangement also simplifies demolding.

[0025] Advantageously, the ends of the first and second arms are positioned away from each other. This gives the two arms a high degree of tamper resistance, since the combined width of the first and second ends is much greater than the fixed width of the constriction.

[0026] In a particularly preferred embodiment of the invention, the at least one arm has two secondary ends that face away from each other, giving the arm the shape of a dowsing rod. The single arm is less movable at its connection point to the cap than two arms, thus further improving tamper resistance.

[0027] Preferably, the second ends act like a fastening clip, interacting with the first and second projections. When the cap is opened, the second ends bend elastically as they are pulled through the narrow opening, spring back open, and thus effectively prevent unwanted re-threading during all subsequent closures of the cap.

[0028] In a further preferred embodiment of the invention, the two second ends are arranged above or in front of the first and second projections after the initial opening. This significantly changes the appearance of the front of the closure, or the consumer's view, from before the initial opening of the flip-top closure to the appearance of an already opened closure. When the second ends are positioned in front of the first and second projections, they are located outside the limiting dimensions of the casing, making the initial opening even more clearly recognizable.

[0029] It is advantageous if the two secondary ends have upward-curved end pieces, giving the arm the shape of an anchor. This further improves tamper resistance and the detection of the initial opening.

[0030] In a further preferred embodiment of the invention, the ratio of the fixed clear width of the constriction to the total width of the first arm, or of the first and second arms, is at least 1:1.3 and preferably between 1:1.5 and 1:2.5. These dimensional ratios guarantee maximum tamper resistance, as they prevent the arm(s) from being threaded through the constriction. A dimensional ratio between 1:1.5 and 1:2.5 is used for standard "sports caps" with outer diameters between approximately 27 and 32 mm.

[0031] A tamper-evident ring is conveniently located at the lower edge of the casing, connected to it by predetermined breaking points. These breaking points are connecting elements with predefined weak points that break upon initial opening. This allows for the detection of not only whether the cap has been opened, but also whether the flip-top closure has been removed from the container neck. Upon removal, the breaking points inevitably break, indicating that the container is no longer sealed. Therefore, the tamper-evident ring serves as an indicator of whether the container is new and unused. The tamper-evident ring is not shown in the figures.

[0032] Advantageously, the second end of the arm is connected to the edge of the recess by means of at least one predetermined breaking element before the initial opening. This means that the second end of the arm is designed such that it is connected to the edge of the recess by predetermined breaking elements before the first opening. Upon opening, the predetermined breaking elements break, so that after the initial opening, the arm and the recess are disconnected. Initial opening is therefore indicated both by the arm being pulled out of the recess and by the broken predetermined breaking element.

[0033] It is advantageous if the arm has at least one stiffening element. This stiffening element can be located, in particular, at the front of the arm, meaning it is visible to the user and makes the arm easier to identify. The stiffening element could, for example, have the form of a web profile. The stiffening element is also advantageous because it allows for targeted optimization of the arm's function when pulling it out of a narrow passage, sliding it off, and / or locking it into place.

[0034] The casing conveniently features an internal thread on its inner surface for screwing on and, alternatively or additionally, a snap-fit ​​element for engaging with the neck of the container. This allows the container to be quickly closed after filling by screwing on the hinged closure and, alternatively or additionally, by snapping it into place. An advantage of the hinged closure with the internal thread is that it can be resealed and assembled or disassembled without tools. The snap-fit ​​element, on the other hand, allows for quick closure of the container and is particularly cost-effective.

[0035] Another aspect of the invention relates to a combination of a hinged closure as described above and a container. As explained in the last paragraph, the container can be quickly closed with the hinged closure during the filling process.

[0036] Further advantages and features will become apparent from the following description of an exemplary embodiment of the invention with reference to the schematic diagrams.

[0037] Illustrations. They show, not to scale:

[0038] Figure 1: a first side view of a hinged closure mounted on a container;

[0039] Figure 2: an isometric view of the hinged closure and the container;

[0040] Figure 3: a second side view of the hinged closure and the container, showing a warranty closure in a first embodiment;

[0041] Figure 4: an enlarged sectional view along section line IV-IV;

[0042] Figure 5: the container closure in an axonometric view;

[0043] Figure 6: the container closure in a side view before initial use

[0044] Opening, wherein arms with predetermined breaking elements are connected to an edge of a recess;

[0045] Figure 7: the container closure in a side view after the first use

[0046] Open;

[0047] Figure 8: the container closure of the first embodiment free of the

[0048] Breaking elements in an axonometric view;

[0049] Figure 9: the container closure in a side view before initial use

[0050] Open;

[0051] Figure 10: the container closure in a side view after the first use

[0052] Open;

[0053] Figure 11: the container closure in an axonometric view in a second embodiment with two interlocking arms; Figure 12: the container closure in a side view before initial use

[0054] Open

[0055] Figure 13: the container closure in a side view after the first use

[0056] Opening with arms locked together;

[0057] Figure 14: the container closure in an axonometric view in a second embodiment with a hookable arm;

[0058] Figure 15: the container closure in a side view before initial use

[0059] Open;

[0060] Figure 16: the container closure in a side view after the first use

[0061] Opening with the hooked arm;

[0062] Figure 17: the container closure in an axonometric view in the second embodiment with a non-interlocking arm;

[0063] Figure 18: the container closure in a side view before initial use

[0064] Open;

[0065] Figure 19: the container closure in a side view after the first use

[0066] Open with the unhooked arm;

[0067] Figure 20: the container closure in a side view according to a third

[0068] embodiment before first opening;

[0069] Figure 21 shows the container closure from Figure 20 after first opening with the arm unhooked;

[0070] Figure 22: Container closure in a side view according to a variant of the third embodiment before first opening;

[0071] Figure 23: the container closure from Figure 22 after being opened for the first time with the arm unhooked.

[0072] Figures 1 to 23 show a flip-top closure, collectively designated by reference numeral 11. The flip-top closure 11 is preferably injection-molded from plastic and is connected to a container 13. The container 13 has a neck 14 (see Figure 4). Preferably, the flip-top closure 11 is screwed or snapped onto the container 13, which is shown in Figures 1 to 4. The present flip-top closure 11 can be used for beverage bottles used in sports activities. Therefore, the container 13 is preferably a beverage bottle.

[0073] In all figures, identical or functionally equivalent elements are labelled with the same reference symbols. For clarity, not all reference symbols are repeated in every figure.

[0074] As shown in Figure 4, the hinged closure 11 has a spout 15 with a sleeve 17. An internal thread 19 can be formed on the sleeve 17, which interacts with an external thread 21 formed on the neck 14. The neck 14 transitions into a container body 16 (see Figures 1 and 2). The sleeve 17 has a lower rim 22 (see Figure 5). A nozzle 23 adjoins the sleeve 17, defining a pouring opening 25.

[0075] A cap 27 is connected to the spout 15 by means of a hinge 29. The cap 27 can be pivoted relative to the spout 15 from a closed position to an open position and vice versa via the hinge 29. On its inner surface, the cap 27 has a sealing element 31 for closing the spout opening 25. The side views show that the hinge 29 does not have to be directly connected to the casing 17, but rather by means of a retaining ring 30. A snap element 32 is formed on the outer surface of the retaining ring 30, which allows the retaining ring 30 to snap onto the casing 17.

[0076] The hinged closure 11 includes a warranty seal 33, which indicates whether the closure cap 27 has already been opened or whether the hinged closure 11 is still sealed in its original packaging.

[0077] Figures 2 to 10 show a first embodiment of the warranty seal 33 according to the invention. Figures 5 to 7 show a first variant, whereas Figures 8 to 10 show a second variant of the first embodiment.

[0078] Figures 11 to 19 show a second embodiment of the warranty seal 33 according to the invention. Figures 11 to 13 show a first variant, figures 14 to 16 show a second variant, and figures 17 to 19 show a third variant of the second embodiment.

[0079] In the first embodiment, the tamper-evident seal 33 comprises a first and second arm 35a, 35b. It would also be conceivable to provide only a first arm 35a. The first and second arms 35a, 35b each have a first end 37 and a second end 39. In the first embodiment, the first ends 37 are hinged to the lower edge 41 of the sealing cap 27.

[0080] The first and second arms 35a, 35b are received in a recess 43 in front of the initial opening. The recess 43 is located at the upper edge 44 of the retaining ring 30. Alternatively, the recess 43 can also be located at the upper edge 44 of the sleeve 17 (not shown). The recess 43 tapers to an opening defined as a constriction 45. During the initial opening of the closure cap 27, the arms 35a, 35b are pulled out of the recess 43 through the constriction 45. When the closure cap 27 is closed, it is impossible for the two arms 35a, 35b to return to the recess 43. This is also due to the fact that the second ends 39 are beveled or curved outwards or bent upwards. If the arms 35a, 35b are outside the recess 43, it is immediately apparent to the user that the folding lock 11 has already been opened.

[0081] Figure 6 shows that the second ends 39 of the arms 35a, 35b are connected to an edge 48 defining the recess 43 by means of predetermined breaking elements 47 before initial opening. The lower edge 41 and the upper edge 44 are additionally connected to each other by predetermined breaking elements 47 all around before initial opening. The predetermined breaking elements 47 complete the tamper-evident seal 33, as unbroken predetermined breaking elements 47 further emphasize the unopened closure cap 27. Figures 8 to 10 show a second variant of the first embodiment in which no predetermined breaking elements 47 are provided at the second ends 39. Predetermined breaking elements 47 can also be provided on the arms 35a, 35b in the examples shown of the second embodiment, as well as alternatively or additionally on the edges 41, 44.

[0082] The constriction 45 is formed by a first and second projection 49a, 49b. The projections 49a, 49b have a flattened surface which directs the curved second ends 39 outwards when the closure cap 27 is closed. To allow the arms 35a, 35b sufficient space to bend outwards, they are arranged in a recess 51. The recess 51 is cut into the closure cap 27 above the lower edge 41. The first and second arms 35a, 35b are arranged symmetrically in the recess 43 and in the recess 51. These features, in combination, allow for immediate and unambiguous visual identification of whether the closure cap 27 has already been opened or whether it is still closed.

[0083] In the second embodiment of the hinged closure 11 according to Figures 11 to 19, the recess 43 in the closure cap 27 is formed by extending the lower edge 41 upwards in the area of ​​the recess 43. The recess 43 can have a trapezoidal cross-section, with the narrowing 45 forming the shorter base of the trapezoid. The arms 35a, 35b are integrally formed on the upper edge 44 of the retaining ring 30, and the narrowing 45 is located on the lower edge 41 of the closure cap 27.

[0084] After the second ends 39 are pulled out of the recess 43 and through the constriction 45, they are pressed into a groove 53 when the closure cap 27 is closed for the first time. The first ends 37 are also located in this groove 53. At the transition from the groove 53 to the upper edge 44, a first and second hook 55a, 55b are formed. The second ends 39 engage below the hooks 55a, 55b when they are pressed into the groove 53 from the lower edge 41. The recess 43 is then free of the arms, clearly indicating that the closure cap 27 has already been opened.

[0085] Stiffening elements 57 can be formed on the arms 35a, 35b. As can be seen in Figures 13 and 16, the stiffening elements 57 form a protrusion, which ensures that the arms 35a, 35b are securely pressed under the hooks 55a, 55b when the cap 27 is closed. The locked arms 35a, 35b do not interfere with the user's drinking. The stiffening elements 57 can also be arranged at other positions on the arms 35a, 35b to improve the insertion through the constriction 45 or to prevent sliding.

[0086] Within the closure cap 27, a ring section 59 is formed which surrounds the sealing element 31. The recess 51 (1st embodiment) or the notch 43 (2nd embodiment) is recessed in a wall section 61 of the closure cap 27.

[0087] Figures 14 to 16 show a second variant of the second embodiment, in which only the arm 35a is provided and the second arm 35b is missing. Accordingly, the groove 53 also has a different shape than in the first variant of the second embodiment. Figures 17 to 19 show a third variant of the second embodiment, in which only the first arm 35a is present and the second end 39 cannot be engaged in the groove 53.

[0088] Figures 20 and 21 show a third embodiment of the first arm 35a. Compared to the first embodiment according to Figures 1 to 10, the two second ends 39 are formed on the first arm 35a. In this embodiment, the two second ends 39 also point away from each other. Thus, the first arm 35a has the shape of a dowsing rod. The second ends 39 are received in the recess 43 before the closure cap 27 is opened for the first time. The first and second projections 49a, 49b, between which the constriction 45 is formed, are also fixed in the third embodiment. This prevents the clear width 63 of the constriction 45 from changing when the second ends 39 are pulled out. Before the first opening, the first arm 35a is received in the constriction 45 and clipped into the recess 43 in the manner of a fastening clip.When the first arm 35a is pulled out of the recess 43, only the two second ends 39 bend towards each other. The two projections 49a, 49b are rigid. This ensures that the projections 49a, 49b are tamper-proof and that the two second ends 39 cannot be threaded back into the recess 43 after being pulled out for the first time. When reclosing, the two second ends 39, due to their forked shape, reliably slide forward along the projections 49a, 49b and come to rest on or in front of the cover 17. In this position, the two second ends 39 are particularly easy to see, and the appearance of the front of the closure changes clearly from "before initial opening" to "after initial opening." This gives the consumer a clear visual signal that the snap closure 11 has already been opened.

[0089] Figures 22 and 23 show a variant of the third embodiment in which the two second ends 39 have upwardly bent end pieces 40. In this variant, the shape of the first arm 35a can be compared to an anchor. This further improves tamper resistance, making re-threading impossible even with the strongest intent to manipulate. Compared to the variant described in the last paragraph, visibility after initial opening and re-closing is further improved. Legend:

[0090] 11. Flip closure

[0091] 13 containers

[0092] 14 neck

[0093] 15 spouts

[0094] 16 container bodies

[0095] 17 Sheath 19 Internal thread

[0096] 21 External thread 22 Lower edge

[0097] 23 nozzles 25 pouring opening

[0098] 27 Cap 29 Hinge

[0099] 30 Retaining ring 31 Sealing element

[0100] 32 Snap-in elements

[0101] 33 Warranty closure 35a First arm 35b Second arm 37 First end of first and second arm 39 Second end of first and second arm

[0102] 40 End pieces of the second ends 41 Lower edge of the closure cap

[0103] 43 recess

[0104] 44 Top edge of the retaining ring or the sleeve 45 Narrow point

[0105] 47 Breakaway elements 48 Edge defining the recess 49a First projection 49b Second projection 51 Recess

[0106] 53 Groove 55a First hook 55b Second hook 57 Stiffening elements 59 Ring section

[0107] 61 Wall section 63 Clear width of the narrow passage

Claims

1. Having a hinged closure (11) made of plastic - a spout (15) with a sleeve (17) for attaching the closure (11) to a container (13) and for drinking from the container (13) with a lower rim (22) and a spout (23) adjoining the sleeve (17) and surrounding a pouring opening (25), - a cap (27) connected to the spout (15), which has a sealing element (31) on its inside for closing the spout opening (25), - a hinge (29) with which the closure cap (27) can be pivoted relative to the spout (15) from a closed position to an open position and vice versa, and - a guarantee lock (33) which indicates whether the hinged lock (11) is originally closed and has at least one movable first arm (35a) with a first and second end (37, 39) which is attached to an upper edge (44) of the jacket (17) or on a lower edge (41) of the closure cap (27) is hinged to the first end (37) and in a first position indicates that the hinged closure (11) is originally closed and in a second position indicates that the hinged closure (11) has already been opened, characterized in that the at least one first arm (35a) is received in a recess (43) before the initial opening, which tapers towards the first end (37) of the arm (35a) and accordingly has an opening realized as a constriction (45) which is unchangeable in size, through which the arm (35a) is pulled during the initial opening of the closure cap (27).

2. Flip-top closure according to claim 1, characterized in that the first arm (35a) is formed on the upper edge (44) of the coat (17) and the constriction (45) is provided at the lower edge (41) of the closure cap (27).

3. Hinged closure according to claim 1, characterized in that the first arm (35a) is formed on the lower edge (41) of the closure cap (27) and the constriction (45) is provided on the upper edge (44) of the jacket (17).

4. Hinged closure according to one of the preceding claims, characterized in that the second end (39) of the arm (35a) is chamfered in the direction of the upper edge (44) or the lower edge (41).

5. Hinged closure according to claim 4, characterized in that the chamfering of the second end (39) is realized by a curvature of the arm (35a).

6. Hinged closure according to one of the preceding claims, characterized in that the second end (39), after it has been pulled out of the recess (43), is latched by the first closing of the closure cap (27) at the upper edge (44) or the lower edge (41).

7. Hinged closure according to claim 6, characterized in that the second end (39) can be latched at the upper edge (44) or the lower edge (41) by being pressed into a groove (53) provided at the upper edge (44) or the lower edge (41).

8. Hinged closure according to one of the preceding claims, characterized in that the recess (43) has the shape of a trapezoid in cross-section.

9. Hinged closure according to one of the preceding claims, characterized in that the constriction (45) is formed by at least one first immovable projection (49a), whereby the size of the constriction (45) is unchangeable.

10. Hinged closure according to one of the preceding claims, characterized in that the constriction (45) is formed by a first and a second immovable projection (49a, 49b), whereby the size of the constriction (45) is unchangeable.

11. Hinged closure according to claim 9, characterized in that the at least one projection (49a) has a directionally inclined upper surface which, when the closure cap (27) is closed, interacts with the second end (39) of the arm (35a) and deflects it outwards.

12. Hinged closure according to one of the preceding claims, characterized in that a ring section (59) is formed within the closure cap (27) which surrounds the sealing element (31).

13. Hinged closure according to one of the preceding claims, characterized in that the at least one arm (35a) is positioned in a recess (51) above the lower edge (41).

14. Hinged closure according to one of the preceding claims, characterized in that the recess (43) and / or the opening (51) is excluded in a wall section (61) of the closure cap (27).

15. Hinged closure according to one of the preceding claims, characterized in that a first and a second arm (35a, 35b) each having a second end (39) are arranged symmetrically in the recess (43) before the first opening of the closure cap (27) and symmetrically outside the recess (43) after the first opening.

16. Flip-top closure according to claim 15, characterized in that the second ends (39) of the first and second arms (35a, 35b) are turned away from each other.

17. Hinged closure according to one of claims 1 to 14, characterized in that the at least one arm (35a) has two second ends (39) which are turned away from each other, whereby the arm (35a) takes on the shape of a dowsing rod.

18. Flip-top closure according to one of claims 10 to 17, characterized in that the second ends (39) cooperate with the first and second projections (49a, 49b) in the manner of a fastening clip.

19. Hinged closure according to one of claims 10 to 18, characterized in that the two second ends (39) are arranged above or in front of the first and second projections (49a, 49b) after the first opening.

20. Hinged closure according to one of claims 17 to 19, characterized in that the two second ends (39) have two upwardly bent end pieces (40), whereby the arm (35a) takes on the shape of an anchor.

21. Hinged closure according to one of the preceding claims, characterized in that the ratio of the unalterable clear width (63) of the narrow section (45) to the total width of the first arm (35a) or of the first and second arms (35a, 35b) is at least 1 to 1.3 and preferably between 1 to 1.5 and 1 to 2.

5.

22. Hinged closure according to one of the preceding claims, characterized in that a guarantee ring is arranged on the lower edge (22) of the sleeve (17), which is connected to the lower edge (22) of the sleeve (17) by means of predetermined breaking points.

23. Hinged closure according to one of the preceding claims, characterized in that the second end (39) of the arm (35a) is connected to an edge (48) defining the recess (43) before the initial opening by means of at least one predetermined breaking element (47).

24. Hinged closure according to one of the preceding claims, characterized in that the arm (35a) has at least one stiffening element (57).

25. Hinged closure according to one of the preceding claims, characterized in that the jacket (17) has an internal thread (19) for screwing on and / or a locking element for snapping onto a neck (14) of the container (13) on its inner surface.

26. Combination comprising a hinged closure (11) according to claim 15 and a container (13) - a container body (16) for receiving a filling material, - a container neck (14) adjoining the container body (16), which encloses a dispensing opening and on whose outer surface an external thread (21) for screwing on and / or a corresponding locking element for snapping the jacket (17) is formed.

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