Container lids and containers

Abstract

This invention relates to a cap (11) for a pouring spout (33) of a closed container (13), comprising: a cylindrical threaded member (15) having an open edge (25) and an internal thread capable of interacting with an external thread (31) of the container neck (29) of the container (13); a tamper-evident ring (17) designed to be held at a protrusion (35) formed at the container neck (29); a plurality of tamper-evident tabs that detachably connect the tamper-evident ring (17) to the open edge (25); and a first retaining band ( 19a) has a first end (39) and a second end (41), as well as a first edge (43) and a second edge (45), wherein the first end (39) is fixedly connected to the open edge (25) of the threaded member (15), and the second end (41) is fixedly connected to the tamper ring (17); a second retaining band (19b) has a third end and a fourth end, as well as third and fourth edges, wherein the third end is fixedly connected to the open edge (25) of the threaded member (15), and the fourth end is fixedly connected to the tamper ring (17). The second end (41) is arranged substantially diametrically opposite the fourth end on the circular trajectory of the tamper ring (17) before the threaded member (15) is initially opened.

Description

Technical Field

[0001] This invention relates to a cap according to the invention and a container according to the invention. Background Technology

[0002] In the prior art of plastic caps with tamper-evident straps, a type of cap is known that is inseparably held to a container and seals the container's pouring spout. In this regard, retention is also important, as legislation is anticipated to require that beverage bottle caps remain inseparably attached to the beverage bottle even when open.

[0003] DE 93 18 243 U1 discloses a tethered cap for sealing containers. After the cap's threads are unscrewed, the cap remains in place by a tether strap at the tamper-evident strap. The tether strap is integrated into the tamper-evident strap when the cap is closed. Therefore, the tamper-evident strap must have a greater height, equivalent to the sum of the height of a conventional tamper-evident strap and the height of the tether strap. This increased height inevitably leads to increased material consumption during the production of the corresponding cap. Summary of the Invention

[0004] In view of these disadvantages of the prior art, the object of the present invention is to provide a tethered cap that consumes only slightly different amounts of material compared to conventional caps with tamper-evident straps.

[0005] Another purpose is to demonstrate a tie-on cap that is particularly easy to use, or simple to understand, and does not hinder the use of the container to be closed.

[0006] The objective is successfully achieved in a cap for sealing the pouring spout of a container by means of features according to the invention.

[0007] A preferred feature of the invention is that the second end is arranged substantially diametrically opposite the fourth end on the circular trajectory of the anti-opening ring before the threaded part is initially opened. This diametrical arrangement results in the fact that elastic deformation of the first and second retaining bands is not always necessary for transitioning to the open position. Even in the open position, i.e., when the threaded part is held in the container, the retaining bands do not need to elastically deform or stretch. The symmetrical arrangement also allows the threaded part to rotate to the holding position next to the pouring spout after being unscrewed to the left or right. The substantially diametrical arrangement also allows for easy and uniform opening of the threaded part.

[0008] In another particularly preferred embodiment of the invention, before the threaded part is initially opened, the first end is arranged substantially diametrically opposite the third end on the circular trajectory of the tamper ring. This arrangement also facilitates positioning the threaded part, but also facilitates re-screwing the threaded part onto the container neck.

[0009] In another preferred embodiment of the invention, if the internal and external threads are implemented as right-hand threads, the first, second, third, and fourth ends are arranged in ascending counterclockwise order on the circular track of the tamper ring before the cap is initially opened. The retaining bands are arranged such that the two retaining bands experience the same pressure load during the opening of the threaded part. No retaining band experiences tension in the opposite direction of the pressure load. Simultaneously, the retaining bands widen horizontally away from the bottleneck, and any pre-set breakage tabs will break due to the lifting movement of the threaded part. This allows for easy and uniform opening of the cap with a uniform opening force. Even with this arrangement of the retaining bands, there is no risk of entanglement or crossing. Therefore, opening the cap is no different from opening a cap without retaining bands, or only slightly different.

[0010] Preferably, the first edge is separably connected to the open edge of the threaded member using at least one first pre-set break tab, the second edge is separably connected to the anti-pry ring using at least one second pre-set break tab, the third edge is separably connected to the open edge of the threaded member using at least one third pre-set break tab, and the fourth edge is separably connected to the anti-pry ring using at least one fourth pre-set break tab. The retaining band is thus stably held at the threaded member and the anti-pry ring. This results in the cap being pressed against the bottleneck despite the presence of two retaining bands.

[0011] Preferably, the first and third ends clamp a first opening angle of at least 170 degrees and at most 190 degrees, and preferably at least 175 degrees and 185 degrees, relative to the center of the cap, which is the apex, and the second and fourth ends clamp a second opening angle of at least 170 degrees and at most 190 degrees, and preferably at least 175 degrees and at most 185 degrees, relative to the center of the cap, which is the apex. Thus, it is conceivable that the first and second opening angles deviate slightly from the above arrangement; however, the second and fourth, or first and third, ends of the retaining bands remain substantially always diametrically opposed. The center of the cap lies in the plane between the open edge and the tamper-evident ring. By selecting the first and third opening angles, the lengths of the first and second retaining bands and their positions along the tamper-evident ring can be precisely determined, thereby performing the following function regardless of the diameter of the cap: the first and second retaining bands have a length that allows the threaded part to be unscrewed from the container neck. Furthermore, the length of the retaining bands allows the threaded part to be translated away from the pouring spout and moved downwards along the container neck to the open position. By providing two retaining bands, this movement is forcibly guided and forces the threaded part into the open position. Ensure the threaded parts do not extend into the pouring spout when the contents are being poured out.

[0012] Suitably, the first and second ends clamp a third opening angle of at least 110 degrees and at most 140 degrees, and preferably at least 120 degrees and at most 130 degrees, relative to the center of the cap, which serves as the apex. By selecting the third opening angle, the first retaining band has a defined length, which, in conjunction with the second retaining band, enables the aforementioned function.

[0013] Suitably, the third and fourth ends clamp a fourth opening angle of at least 110 degrees and at most 140 degrees, and preferably at least 120 degrees and at most 130 degrees, relative to the center of the cap, which serves as the apex. By selecting the fourth opening angle, the second retaining band has a defined length, which, in conjunction with the second retaining band, enables the aforementioned function.

[0014] Since the first, second, third, and fourth opening angles each have a center as their vertex, their sum must be 360 ​​degrees.

[0015] In a particularly preferred embodiment of the invention, the third and fourth opening angles are the same size, and thus the first and second retaining bands are of the same length. The equal length of the first and second retaining bands enables a translational movement that is forcibly guided after the threaded part is unscrewed from the neck of the container.

[0016] In another particularly preferred embodiment of the invention, the cross-sections of the first and second retaining bands are constant along the length of the first or second retaining band. Therefore, the retaining bands have constant elastic properties along their length, thereby determining a defined length along which the threaded member can be stably and securely held in the container in its open position. In the open position, the first and second retaining bands are pre-tensioned. This elastic pre-tension of the retaining bands allows for repeated unscrewing and retightening of the threaded member from and from the container neck, and reliably holding the threaded member in the open position multiple times. The constant cross-section of the retaining bands along their length prevents excessive stretching of the retaining bands in the open position.

[0017] Preferably, the tamper-evident tabs are arranged at uniform intervals along the open edge. Therefore, the tamper-evident rings are held securely at the threaded part, allowing the cap to be pressed against the container neck. Because the tamper-evident tabs are evenly spaced, the threaded part can also be unscrewed with uniform force.

[0018] Suitablely, the first, second, third, and fourth set-break tabs are arranged at uniform intervals along the first and second, or third and fourth edges. Therefore, the cap is sufficiently stable in the first and second retaining band areas to be pressed against the container neck. Furthermore, the broken set-break tabs and anti-pry tabs indicate that the threaded part has been twisted relative to the container neck and is no longer in its original closed state.

[0019] In another particularly preferred embodiment of the invention, the position of the tamper ring relative to the annular protrusion of the container neck can be changed in both the axial and circumferential directions. Because the tamper ring is axially movable upwards, it is pulled upwards when the threaded part is unscrewed, thus allowing the first and second retaining bands to be implemented shorter and better adapted to the open position. Since the tamper ring rotates along with the threaded part as it begins to unscrew, the first and second retaining bands are subjected to axial force and pulled upwards when the threaded part is unscrewed. Preferably, the tamper ring can only perform a very small lifting movement in the axial direction (e.g., 1 to 2 mm), such that the predetermined breakage tab can be torn open due to the rotation or lifting movement of the threaded part.

[0020] Advantageously, the tamper ring incorporates an anti-torsion device that prevents it from twisting relative to the bottleneck when the threaded part is opened, even after it has twisted a certain distance in the circumferential direction. This anti-torsion device enhances the pressure acting on the retaining band when the threaded part twists in the opening direction, as it acts as a support relative to the tamper ring. Because the tamper ring rotates with the threaded part at the start of twisting, the retaining band will not become entangled around the container neck.

[0021] Suitably, first and second recesses are provided on the edge of the tamper-evident ring facing the retaining strip to accommodate the first and second retaining strips. Therefore, the first and second retaining strips are space-saving and can be formed from the tamper-evident ring without additional material costs. For example, the first and second retaining strips can be formed from the tamper-evident ring by providing corresponding cuts. However, it is preferable to produce the cap described in this invention using injection molding.

[0022] In another preferred embodiment of the invention, the first and / or second ends of the first retaining band and the third and / or fourth ends of the second retaining band are capable of bending along a predefined bend line. Therefore, the first and second retaining bands can each function like a lever with two fulcrums. The bend line also ensures that the first and second retaining bands do not bend or fold at random locations in the open position, but precisely at the bend line. Thus, the threaded component is held particularly precisely in the open position by the two retaining bands and is precisely guided to the open position by the two retaining bands.

[0023] It has proven useful that the inwardly projecting inner cone, formed at the threaded cap plate, for example in the form of a sealing cylinder or sealing ring, is designed to interact in a sealing manner with the inner wall of the container neck in the closed state. Thus, the cap can function as a so-called "cone-sealer" and reliably seal the bottle neck.

[0024] In another preferred embodiment of the invention, the retaining strap has a width between 3 mm and 7 mm, and preferably between 4 mm and 5 mm. This size prevents the retaining strap from tearing accidentally, especially when tearing the pre-cut flap. Furthermore, the cap does not become too high and can be securely engaged with the standardized container neck using external threads.

[0025] A further feature of this invention is that the cap is designed to interact with a standardized container neck using external threads and an annular protrusion. Therefore, the cap can be placed on a standardized container neck, particularly the neck of a PET beverage bottle. Consequently, containers engaging with the cap according to this invention do not need to be specially adapted to the cap.

[0026] Suitablely, the cap is made of a plastic material, preferably HDPE (High Density Polyethylen) or PP (Polypropylen). Therefore, caps can be produced using standard plastic materials, including known caps with tamper-evident rings.

[0027] In another preferred embodiment of the invention, at least one of the threaded component, the tamper-evident ring, the retaining band, and the first and second pre-set breakage elements is manufactured integrally. Therefore, the cap can be produced in a die-casting mold without additional processing steps to form the first and second retaining bands. Preferably, the inner cone is also integrally manufactured along with the other parts of the cap.

[0028] In a particularly preferred embodiment of the invention, the tamper-evident ring has slits distributed around its circumference with an upper and lower edge. The upper edge is formed by an arcuate extension of the tamper-evident ring, and the lower edge is formed by an axially inwardly inclined wall section. Each slit's lower edge forms a protrusion, thus creating an engaging mechanism for form-locking engagement with the annular protrusion. Due to the presence of the engaging mechanism, which is in the form of an inwardly inclined wall section rather than circumferentially around the tamper-evident ring, and the presence of the slits, the material usage is further reduced, thus significantly reducing the plastic material requirement by up to 5%. Furthermore, the inwardly inclined wall section cannot move radially, thus the tamper-evident ring is held at the annular protrusion, and can only be pulled over the protrusion when the tamper-evident ring is stretched along its circumference. The tamper-evident ring is thus held securely on the annular protrusion by the wall section, allowing the set fracture element to tear safely before the holding of the wall section is eliminated. However, the wall section is flexible or movable in the radially outward direction. Therefore, the wall section can be demolded from the die-casting mold or injection mold with very little force. For the same reason, the applied force for pressing the cap is significantly reduced compared to existing technologies. Elongation of the tamper ring during demolding and pressing is largely avoided, which could lead to permanent damage to the cap.

[0029] Another aspect of the invention relates to a container having a container body, a container neck connected to the container body, an external thread formed at the container neck, and a cap as described above.

[0030] In a particularly preferred embodiment of the invention, a shoulder is formed at the neck of the container, either below or through the tamper-evident ring. The lengths of the first and second retaining bands are set such that the threaded member, after being unscrewed from the container neck, can be lifted from the closed position and positioned below the shoulder in the open position, wherein the threaded member is held at the first and second retaining bands in the open position with the open edge at least partially flat against the container body and abutting the shoulder. The threaded member is pulled along the retaining bands in the transition section between the shoulder and the container body in the direction of the container neck, thereby creating retention of the threaded member at the transition section. By lying flat against the shoulder and the container body, the threaded member no longer has room for movement and is thus fixed in the open position.

[0031] Suitablely, the shoulder is a support ring formed at the transition section from the container neck to the container body. From a manufacturing perspective, such support rings are already present in plastic bottles, especially those made of PET. Therefore, using this support ring as a stop for the threaded part is particularly practical. If there is no support ring at the container, it is also feasible to form a shoulder of a certain circumferential length at the container neck, such that the first cylindrical shell of the threaded part can be supported at the shoulder. It is also conceivable to use a tamper-evident ring as the shoulder, at which the first cylindrical shell can be supported.

[0032] In another preferred embodiment of the invention, the lengths of the first and second retaining bands are set such that the threaded member, after being unscrewed from the container neck, can be lifted from the closed position and positioned in the open position, where the cover abuts against the external thread and the shoulder. This arrangement of the retaining bands allows the user to select between two fixed or open positions in which the threaded member exposes the pouring spout and is held securely in the container without wobbling. The threaded member can be rotated along the axis of rotation containing the first end of the first retaining band and the third end of the second retaining band until the cover faces the container neck. The threaded member can then be clamped at the container neck by the cover abutting against the external thread and the support ring. The retaining bands are tensioned in the second fixed position, holding the threaded member securely in the container neck without wobbling.

[0033] In another particularly preferred embodiment of the invention, the first and second retaining bands do not elastically deform in the open position of the threaded member. The threaded member can be moved from the open position to the closed position multiple times, thus allowing it to be screwed onto the container neck and uncoiled multiple times. The function of the cap is not diminished by repeated opening and closing of the threaded member.

[0034] Advantageously, the cap can be pressed onto the neck of the bottle. Therefore, the container can be automatically, quickly, and reliably sealed with the cap after filling. Attached Figure Description

[0035] Other advantages and features will become apparent from the following description of several embodiments of the invention with reference to the accompanying drawings. These drawings are not shown to scale.

[0036] Figure 1 Side view of the upper part of the container and the cap with the first and second retaining straps;

[0037] Figure 2 Side view of the cap, showing the cap unscrewed from the neck of the container;

[0038] Figure 3 Top view of the unscrewed cap;

[0039] Figure 4 Side view of a portion of the container and its cap, with the cap in the open position and held below the container neck;

[0040] Figure 5 Top view of the container and the lid in the open position;

[0041] Figure 6 A detailed diagram of the tamper-evident ring in another embodiment is shown, and...

[0042] Figure 7 : Figure 6 A cross-sectional view of the anti-tamper ring, with a visual representation of the tilt angle. Detailed Implementation

[0043] exist Figures 1 to 5 A cap is shown, generally indicated by reference numeral 11 in the accompanying drawings. The cap 11 is held inseparably at a container 13, particularly at a bottle 13. The cap 11 includes a cylindrical threaded part 15, a tamper-evident ring 17, and first and second retaining straps 19a, 19b.

[0044] The threaded component 15 includes a cover plate 21 and a first cylindrical outer shell 23 having an open edge 25. An internal thread 27 is formed on the inside of the outer shell 23. The container 13 includes a container body 28 and a container neck 29 connected to the container body 28. The container neck 29 is designed as a second cylindrical outer shell. An external thread 31 is formed at the container neck 29, which interacts with the internal thread 27. Therefore, the threaded component 15 can be screwed onto and unscrewed from the container neck 29. A cap 11 closes a pouring spout 33 located within the container neck 29.

[0045] The tamper-evident ring 17 is held in a locking manner at the neck 13 of the container. For this purpose, an annular protrusion 35 is formed on the outer side of the neck 29 of the container, and a protrusion 37 is formed on the inner side of the tamper-evident ring 17. Figure 6 and 7 The annular protrusion can be secured from behind. The anti-tamper ring 17 can be twisted relative to the container neck 29.

[0046] The first retaining band 19a has a first end 39 and a second end 41. The first end 39 is fixedly connected to the open edge 25. The second end 41 is fixedly connected to the tamper-evident ring 17. Thus, the cap 11 is held inseparably at the container 13. Furthermore, the first retaining band 19a has a first edge 43 and a second edge 45. The first edge 43 is connected to the open edge 25 by at least one first pre-set break tab 47, and the second edge 45 is detachably connected to the tamper-evident ring 17 by at least one second pre-set break tab 49.

[0047] The second retaining band 19b has a third end 51 and a fourth end 53. The third end 51 is fixedly connected to the open edge 25. The fourth end 53 is fixedly connected to the tamper-evident ring 17. Thus, the cap 11 is additionally and inseparably held at the container 13. Furthermore, the second retaining band 19b has a third edge 55 and a fourth edge 57. The third edge 55 is connected to the open edge 25 by at least one third set break tab 59, and the second edge 45 is detachably connected to the tamper-evident ring 17 by at least one fourth set break tab 61.

[0048] Additionally, the tamper-evident ring 17 is held at the open edge 25 by a plurality of tamper-evident tabs 63. The tamper-evident tabs are preferably arranged at a uniform spacing at the tamper-evident ring 17. It should be understood that the areas occupied by the first and second retaining bands 19a, 19b at the tamper-evident ring 17 do not have tamper-evident tabs 63, because the designated break tabs 47, 49, 59, 61, which serve as tamper-evident tabs, each form a connection between the open edge 25 and the tamper-evident ring 17.

[0049] Preferably, the first and second retaining bands 19a and 19b each have a width between 2 mm and 3 mm to ensure sufficient stability.

[0050] Because the cap 11 is axially symmetric, it has a center 65. The center 65 lies in an imaginary plane between the open edge 25 and the tamper-evident ring 17.

[0051] The retaining bands 19a, 19b, or their ends, are positioned at the tamper ring 17 and the open edge, making it possible for the first and second retaining bands to be subjected to pressure loads upon initial opening. Furthermore, if the internal thread 27 and external thread 31 are implemented as right-hand threads, the first, second, third, and fourth ends 39, 41, 51, and 53 are arranged in ascending counter-clockwise order on the circular track of the tamper ring 17 before the initial opening of the cover 11. The second and fourth ends 41, 53 connected to the tamper band 17 and the first and third ends 39, 51 connected to the threaded member 15 thus alternate. The retaining bands are therefore aligned in the same manner relative to the direction of rotation. As described above, this results in both retaining bands 19a, 19b being subjected to pressure loads upon initial opening and subsequent opening of the cover, because the rotational movement compresses the two retaining bands 19a, 19b to some extent.

[0052] As shown in the figure, the first and third ends 39, 51 are substantially diametrically opposed. The same applies to the second end 41 and the fourth end 53. This symmetrical arrangement of the ends with straps 19a, 19b allows the threaded part 15 to be rotated arbitrarily to one side or the other next to the pouring spout along an imaginary plane of symmetry between the second and fourth ends 41, 53 after being unscrewed from the container neck 29. Therefore, the threaded part 15 can be flipped to the left or right to expose the pouring spout 33. The axis of rotation 83 of the container neck 29 lies on the imaginary plane of symmetry.

[0053] The opening angle between the ends of retaining bands 19a and 19b, as defined below, is... Figure 5 As shown in the image. Because... Figure 5 A top view of the cover 11 is shown, thus allowing the opening angle to be seen particularly clearly. Although in Figure 5 As shown, the retaining band has separated from the recesses 79 and 81 at the tamper-evident ring 17, with the ends of the recesses still substantially the same as the ends of the retaining band. The first end 39 and the third end 51 enclose a first opening angle 67 of at least 170 degrees and at most 190 degrees, and preferably at least 175 degrees and at most 185 degrees, relative to the center 65, which is the apex. The second end 41 and the fourth end 53 enclose a second opening angle 69 of at least 170 degrees and at most 190 degrees, and preferably at least 175 degrees and at most 185 degrees, relative to the center 65, which is the apex.

[0054] The first end 39 and the second end 41 enclose the center of the cap, which is the apex, at a third opening angle 71 of at least 110 degrees and at most 140 degrees, and preferably at least 120 degrees and at most 130 degrees. The third end 51 and the fourth end 53 enclose the center 65, which is the apex, at a fourth opening angle 73 of at least 110 degrees and at most 140 degrees, and preferably at least 120 degrees and at most 130 degrees. It should be understood that the sum of the first opening angle 67, the second opening angle 69, the third opening angle 71, and the fourth opening angle 73 must be 360 ​​degrees. By selecting the first, second, third, and fourth opening angles, it is feasible for the first and second retaining straps 19a and 19b to have a certain length that enables the following functions of the cap.

[0055] Suitablely, the third and fourth opening angles 71 and 73 are the same size, and similarly, the first and second retaining bands 19a and 19b are the same length. The first and second retaining bands 19a and 19b are preferably machined from the anti-pickup ring 17 with an offset of 180 degrees.

[0056] A first or second bend line 75 or 77 is formed at the first or third end 39 or 51. The first or third end 39 or 51 can function as a joint through the first or second bend lines 75 or 77. Bend lines may also be provided at the second and fourth ends 41 or 53.

[0057] First and second recesses 79 and 81 are provided at the tamper-evident ring 17. First and second retaining strips 19a and 19b are accommodated in the first or second recesses 79 and 81. Therefore, it is feasible to directly machine the first and second retaining strips 19a and 19b from the tamper-evident ring 17, for example, by cutting them out from the tamper-evident ring, or to provide the first and second retaining strips, for example, by designing an injection molding mold accordingly.

[0058] If the cap 11 is pressed against the container neck 29, the pouring spout 33 is closed by the cap 11, and the cap 11 is in the closed position. When the threaded member 15 is unscrewed from the container neck 29, the first, second, third, and fourth set break tabs 47, 49, 59, 61 and the tamper tab 63 break. The tamper ring 17 rotates with the threaded member 15. During unscrewing, the first and second retaining straps 19a, 19b can be erected. Here, the first and second ends 39, 51 can act as joints via the first and second (not shown) bend lines 75, 77. Preferably, the second and fourth ends 41, 53 can also be bent, for example, outward, because this simplifies the translational movement of the threaded member 15 and allows it to be performed in a defined manner.

[0059] exist Figure 4 The diagram illustrates how the threaded member 15 can be positioned at the container body 28 in the open position. A shoulder 91 is formed at the container neck 29, either below or by the tamper-evident ring 17. This shoulder 91 is formed by a support ring located at the transition section from the container neck 29 to the container body 28. The threaded member 15 is held in the open position by the first and second retaining bands 19a, 19b. Figure 4 The diagram shows a container body 28 with a container shoulder 93. The container shoulder 93 is a transition section from the container neck 29 to the cylindrical portion of the container body 28. The retaining straps 19a and 19b are sized such that the open edge 25 can be pulled over the support ring into the open position. In the open position, the threaded member 15 lies flat on the surface of the container shoulder 93 with the open edge 25. The first cylindrical outer shell 23 abuts against the support ring. Preferably, the retaining straps 19a and 19b are slightly tensioned in the open position. Thus, the threaded member 15 is pulled towards the support ring and is clamped below the support ring. The support ring prevents the threaded member 15 from tipping upward due to the pulling of the retaining straps 19a and 19b. Instead, the support ring acts to press the open edge 25 against the container shoulder 93. Thus, the threaded member 15 is held particularly stably in the open position. It is also conceivable that, without the support ring, the first cylindrical outer shell 23 abuts against the tamper ring 17. In this case, the anti-peeling ring 17 functions as a shoulder of the threaded part 15.

[0060] like Figure 4 As shown, the rotation axis of the container neck 83 and the rotation axis 85 of the threaded part established through the container shoulder 93 form an acute angle. The larger the angle between the two rotation axes 83 and 85, which can be up to 90 degrees, the greater the tension on the container shoulder 93. The smaller the angle between the two rotation axes 83 and 85, the greater the tension on the support ring.

[0061] In a second usage not shown in the figure, the threaded part can be twisted along the first and third ends 39, 53 after being unscrewed from the container 29, so that the cover 21 points toward the container neck 29. Then, similar to what was described before, the threaded part can be positioned at the container neck such that the retaining straps 19a, 19b pull or tighten the cover towards or around the external thread 31 and the support ring.

[0062] Protrusion 37 can be arranged according to Figure 6 and 7 The following figures illustrate the design. This embodiment of the protrusion 37 is the subject of Swiss patent applications Nos. 01467 / 19 and 01695 / 19, the priority of which is protected and the disclosure of which is incorporated herein by reference. A slit 95 is provided at the tamper ring 17 along its entire circumference. Each slit 95 has an upper edge 97 and a lower edge 99. The upper edge 97 is formed by an arcuate section of the tamper ring 17. The lower edge 99 corresponds to the open edge of the wall section 101, which slopes inwardly radially. The lower edge 99 has a smaller radius than the tamper ring 17 due to the inward slope of the wall section 101, and therefore, when the threaded part 15 is unscrewed from the container neck 29, the lower edge may collide with the base (annular protrusion 35) of the container neck 29. This base is achieved by the annular protrusion 35, which is formed below the external thread 31 at the container neck 29. When the threaded part 15 is unscrewed, the lower edge 99 locks into the protrusion 35, so that the anti-pry ring 17 is reliably held at the annular protrusion 35 even under high axial force.

[0063] Each wall segment 101 has a first sub-segment 103 and two second sub-segments 105. The first sub-segment 103 is an inwardly folded shell segment and is preferably designed to be flat. The second sub-segments 105 are connected to the inwardly folded side of the first sub-segment 103 and are connected to the tamper-evident ring 17. The second sub-segments 105 may be designed to be curved or flat and are inclined inwardly opposite each other. The lower edge 99 of the slit 95 corresponds to the open edge of the first sub-segment 103 and the second sub-segment 105 and is located at... Figure 7In the plane 107 shown. Plane 107 is preferably oriented perpendicular to the axis of rotation 85 of the container neck 29. The design features of the wall section 101 have the advantage that the wall section 101 can abut against the annular protrusion 35 with its entire lower edge 99 and will not yield upward under axial tension. Therefore, the tamper ring 17 is held inseparable at the protrusion 35 or can be separated from the protrusion 35 only in the event of damage. The axially inward movement of the first sub-section 103 is prevented by providing the second sub-section 105. However, the axially outward movement of the first sub-section 103 is possible. This movement is flexible, and after the wall section 101 is pressed radially outward, the wall section returns to its initial inwardly inclined position. This also has the advantage that the tamper ring 17 can be easily demolded and that the tamper ring can be pressed onto the container neck 29 together with the threaded part 15 with only a small force. The flexibility of the wall section 101 allows it to be demolded from the die-casting mold and pressed onto the container neck 29 without the risk of damage to the wall section 101.

[0064] Preferably, the inclined wall section 101 has a reduced wall thickness relative to the remaining anti-pry ring 17. Figure 7 As shown, the region at the lower edge 99 has the smallest wall thickness. This further optimizes the aforementioned flexibility of the radially outward orientation of wall segment 101. The wall thickness of wall segment 101 increases linearly downwards from the lower edge 99.

[0065] exist Figure 6 and 7 The image shows a tamper-evident ring 17 without the threaded part 15. Figure 6 and Figure 7 It can be clearly seen that an annular ridge 109 is formed above the crack 95 at the anti-tear ring 17, and the upper edge 97 is on the annular ridge.

[0066] exist Figure 7 The first and second tilt angles 111 and 113 are marked on the label. The first tilt angle 111 defines the inclination of the first sub-segment 103 relative to the plane of the lower edge 99. The magnitude of the first tilt angle 111 is between 60 degrees and 80 degrees, and preferably between 65 degrees and 75 degrees. The larger the first tilt angle 111, the better the stability of the wall segment 101 relative to the vertical force, i.e., the axial tensile force generated by unscrewing the threaded part 15. However, the first tilt angle 111 must not be too large, otherwise it will not be able to adequately engage the annular protrusion 35 from below.

[0067] The second tilt angle 113 defines the inclination of the slit 95 relative to the plane of the lower edge 109. The connecting line 115, representing the inclination of the slit 95, is the connection between the upper edge 97 and the lower edge 99 in the plane extending through the rotation axis 85 and the connecting line 115. The second tilt angle 113 is formed by the connecting line 115 and the plane 107. The magnitude of the second tilt angle 113 is between 30 degrees and 50 degrees, and preferably between 35 degrees and 45 degrees. The larger the second tilt angle 113, the easier it is for the anti-peeling ring 17 to be demolded.

[0068] The inwardly protruding inner cone 87 is preferably formed at the cover plate 21 of the threaded part 15. Figure 1 For example, in the form of a sealing cylinder or a sealing ring. The inner cone 87 is designed to interact in a sealing manner with the inner wall 89 of the container neck 29 in the closed position. Therefore, the cap 11 can function as a so-called "cone-sealer" and reliably seal the container neck 29.

[0069] The cap 11 is made of plastic. PP and HDPE are the preferred plastics.

[0070] legend:

[0071] 11. Capping

[0072] 13 Containers, bottles

[0073] 15 Threaded parts

[0074] 17 Anti-tampering ring

[0075] 19a First retaining band

[0076] 19b Second retaining band

[0077] 21. Cover plate for threaded parts

[0078] 23 First cylindrical outer shell

[0079] 25 Open Edge

[0080] 27 Internal thread

[0081] 28. Container body

[0082] 29 Container neck

[0083] 31 External thread

[0084] 33 Pouring spout

[0085] 35. Annular protrusion

[0086] 37. Protrusion

[0087] 39 First end of the first retaining band

[0088] 41 The second end of the first retaining band

[0089] 43 First edge of the first retaining band

[0090] 45 The second edge of the first retaining band

[0091] 47 First-defined fractured splint

[0092] 49 Second setting fracture plate

[0093] 51 The third end of the second retaining band

[0094] 53 The fourth end of the second retaining band

[0095] 55 The third edge of the second retaining band

[0096] 57 The fourth edge of the second retaining band

[0097] 59 Third setting fracture plate

[0098] 61 Fourth setting fracture plate

[0099] 63 Anti-lifting plate

[0100] 65 Capping Center

[0101] 67 First opening angle

[0102] 69 Second opening angle

[0103] 71 Third opening angle

[0104] 73 Fourth opening angle

[0105] 75 First Gradual Narrowing

[0106] 77 Second Gradually Narrowing Section

[0107] 79 First Depression

[0108] 81 Second Depression

[0109] 83. Rotation axis of the container neck

[0110] 85 Rotating shaft of threaded component

[0111] 87 inner cone

[0112] 89 Inner Wall

[0113] 91 shoulder

[0114] 93 Container shoulder

[0115] 95 Cracks

[0116] 97 Upper edge

[0117] 99 Lower edge

[0118] 101 Wall Section

[0119] 103 First Sub-segment

[0120] 105 Second Sub-segment

[0121] 107 Plane

[0122] 109 Annular ridge

[0123] 111 First tilt angle

[0124] 113 Second Inclination Angle

[0125] 115 Connect the straight lines

Claims

1. A cap (11) for a pouring spout (33) of a closed container (13), having - A cylindrical threaded component (15) having an open edge (25) and an internal thread (27) that can interact with the external thread (31) of the container neck (29) of the container (13). - Anti-tamper ring (17), the anti-tamper ring being designed to remain at the annular protrusion (35), the annular protrusion being formed at the neck (29) of the container. - Multiple tamper-evident tabs (63) that allow the tamper-evident ring (17) to be separably connected to the open edge (25). - A first retaining band (19a) having a first end (39) and a second end (41) and a first edge (43) and a second edge (45), wherein the first end (39) is fixedly connected to the open edge (25) of the threaded member (15), and the second end (41) is fixedly connected to the anti-pry ring (17), and - The second retaining band (19b) has a third end (51) and a fourth end (53) and a third edge (55) and a fourth edge (57), wherein the third end (51) is fixedly connected to the open edge (25) of the threaded member (15) and the fourth end (53) is fixedly connected to the anti-pry ring (17). Its features are, The second end (41) is arranged substantially diametrically opposite the fourth end (53) on the circular trajectory of the anti-dislodgement ring (17) before the threaded part (15) is first opened.

2. The cap according to claim 1, characterized in that, Before the threaded part is opened for the first time, the first end is arranged substantially diametrically opposite the third end (51) on the circular trajectory of the anti-picking ring.

3. The cap according to claim 1 or 2, characterized in that, If the internal and external threads are implemented as right-hand threads, before the cap is opened for the first time, the first, second, third and fourth ends are arranged in ascending order in a counterclockwise direction on the circular trajectory of the tamper ring.

4. The cap according to claim 1 or 2, characterized in that, The first edge (43) is separably connected to the open edge (25) of the threaded member (15) by at least one first pre-set break tab (47), and the second edge (45) is separably connected to the anti-pry ring (17) by at least one second pre-set break tab (49). The third edge (55) is separably connected to the open edge (25) of the threaded member (15) by at least one third set break tab (59), and the fourth edge (57) is separably connected to the anti-pry ring (17) by at least one fourth set break tab (61).

5. The cap according to claim 1 or 2, characterized in that, In the closed state of the threaded component, the first end (39) and the third end (51) clamp a first opening angle (67) of at least 170 degrees and at most 190 degrees relative to the center (65) of the cap (11) as the vertex, and The second end (41) and the fourth end (53) clamp a second opening angle (69) of at least 170 degrees and at most 190 degrees relative to the center (65) of the cap (11) which is the vertex.

6. The cap according to claim 5, characterized in that, The first end (39) and the second end (41) enclose a third opening angle (71) of at least 110 degrees and at most 140 degrees relative to the center (65) of the cap (11) which is the vertex.

7. The cap according to claim 6, characterized in that, The third end (51) and the fourth end (53) enclose a fourth opening angle (73) of at least 110 degrees and at most 140 degrees relative to the center (65) of the cap (11) which is the vertex.

8. The cap according to claim 7, characterized in that, The third opening angle (71) and the fourth opening angle (73) are the same size, so the first retaining band (19a) and the second retaining band (19b) are the same length.

9. The cap according to claim 1 or 2, characterized in that, The cross-sections of the first retaining band (19a) and the second retaining band (19b) are constant along the length of the first retaining band (19a) or the second retaining band (19b).

10. The cap according to claim 1 or 2, characterized in that, The anti-tear tabs (63) are arranged at uniform intervals along the open edge (25).

11. The cap according to claim 4, characterized in that, The first predetermined fracture plate (47), the second predetermined fracture plate (49), the third predetermined fracture plate (59) and the fourth predetermined fracture plate (61) are arranged at a uniform spacing along the first edge (43) and the second edge (45) or the third edge (55) and the fourth edge (57).

12. The cap according to claim 1 or 2, characterized in that, The position of the anti-tear ring (17) relative to the annular protrusion (35) of the container neck (29) can be changed in both the axial and circumferential directions.

13. The cap according to claim 1 or 2, characterized in that, A first recess (79) and a second recess (81) are provided at the edges of the anti-tear ring (17) facing the first retaining band (19a) and the second retaining band (19b) to accommodate the first retaining band (19a) and the second retaining band (19b).

14. The cap according to claim 1 or 2, characterized in that, The first end (39) and / or the second end (41) of the first retaining band (19a) and the third end (51) and / or the fourth end (53) of the second retaining band (19b) are capable of bending along predefined bend lines (75, 77).

15. The cap according to claim 1 or 2, characterized in that, An inwardly protruding inner cone is formed at the cover plate (21) of the threaded part (15), and the inner cone is designed to interact in a sealing manner with the inner wall of the container neck (29) in the closed state.

16. The cap according to claim 1 or 2, characterized in that, The first retaining band (19a) and the second retaining band (19b) have a width between 3 mm and 7 mm.

17. The cap according to claim 1 or 2, characterized in that, The cap (11) is designed to interact with the standardized container neck (29) using external threads (31) and annular protrusions (35).

18. The cap according to claim 1 or 2, characterized in that, The cap (11) is made of plastic material.

19. The cap according to claim 4, characterized in that, The threaded part (15), the anti-pry ring (17), the first and second retaining bands, the anti-pry tab (63), and the at least first set break tab (47), second set break tab (49), third set break tab (59) and fourth set break tab (61) are manufactured as a single piece.

20. The cap according to claim 1 or 2, characterized in that, The anti-pry ring (17) has slits (95) distributed around the entire circumference with an upper edge (97) and a lower edge (99), wherein the upper edge (97) is formed by an arcuate extension of the anti-pry ring (17) and the lower edge (99) is formed by an axially inwardly inclined wall section (101) and each slit (95) has a protrusion (37) formed at the lower edge (99) to form an engaging device for engaging with the annular protrusion (35) in a locking manner.

21. The cap according to claim 5, characterized in that, In the closed state of the threaded part, the first end (39) and the third end (51) clamp a first opening angle (67) of at least 175 degrees and at most 185 degrees relative to the center (65) of the cap (11) as the vertex.

22. The cap according to claim 5, characterized in that, In the closed state of the threaded part, the second end (41) and the fourth end (53) clamp a second opening angle (69) of at least 175 degrees and at most 185 degrees relative to the center (65) of the cap (11) as the vertex.

23. The cap according to claim 6, characterized in that, The first end (39) and the second end (41) enclose a third opening angle (71) of at least 120 degrees and at most 130 degrees relative to the center (65) of the cap (11) which is the vertex.

24. The cap according to claim 7, characterized in that, The third end (51) and the fourth end (53) enclose a fourth opening angle (73) of at least 120 degrees and at most 130 degrees relative to the center (65) of the cap (11) which is the vertex.

25. The cap according to claim 15, characterized in that, The inner cone is constructed in the form of a sealing cylinder or a sealing ring.

26. The cap according to claim 16, characterized in that, The first retaining band (19a) and the second retaining band (19b) have a width between 4 mm and 5 mm.

27. The cap according to claim 18, characterized in that, The cap (11) is made of PP or HDPE.

28. A container (13) having - Container body (28) - Container neck (29) connected to the container body (28). - The external thread (31) formed at the neck (29) of the container, and - A cap (11) for closing the pouring opening (33) located within the neck (29) of the container. The cap (11) has - A cylindrical threaded component (15) having an open edge (25) and an internal thread (27) that can interact with the external thread (31) of the container neck (29) of the container (13). - A tamper-evident ring (17), designed to remain at an annular protrusion (35) formed at the container neck (29), - Multiple tamper-evident tabs (63), the tamper-evident tabs enabling the tamper-evident ring (17) to be separably connected to the open edge (25), and - A first retaining band (19a) has a first end (39) and a second end (41), as well as a first edge (43) and a second edge (45), wherein the first end (39) is fixedly connected to the open edge (25) of the threaded member (15), the second end (41) is fixedly connected to the anti-pry ring (17), the first edge (43) is detachably connected to the open edge (25) of the threaded member (15) by at least one first pre-set break tab (47), and the second edge (45) is detachably connected to the anti-pry ring (17) by at least one second pre-set break tab (49). Its features are, The cap is the cap (11) according to any one of claims 1 to 16.

29. The container according to claim 28, characterized in that, A shoulder (91) is formed at the neck (29) of the container, the shoulder being formed below or through the tamper ring (17), and the lengths of the first retaining band (19a) and the second retaining band (19b) are set such that the threaded part (15) can be lifted from the closed position after being unscrewed from the neck (29) of the container and can be positioned in the open position below the shoulder (91), wherein the threaded part (15) is held in the open position at the first retaining band (19a) and the second retaining band (19b) with the open edge (25) at least partially flat on the container body (28) and abutting against the shoulder (91).

30. The container according to claim 29, characterized in that, The shoulder (91) is a support ring formed at the transition section from the container neck (29) to the container body (28).

31. The container according to any one of claims 29 or 30, characterized in that, The lengths of the first retaining band (19a) and the second retaining band (19b) are set such that the threaded part (15) can be lifted from the closed position and positioned in the open position after being unscrewed from the neck (29) of the container, with the cover (21) abutting against the external thread (31) and the shoulder (91) in the open position.

32. The container according to any one of claims 28 to 30, characterized in that, The first retaining band (19a) and the second retaining band (19b) do not elastically deform in the open position of the threaded part (15).

33. The container according to any one of claims 28 to 30, characterized in that, The cap (11) can be pressed onto the bottleneck.

Images