• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Container closure (11) for closing the pouring opening (29) of a container (13) with a container neck (15), the container closure (11) having a closure cap (17) with an outer jacket (21) having an open edge (25) and one on the outer jacket (21) adjoining the first head plate (27). Furthermore, the container closure (11) has a holding element (19) with a retaining ring (33) which can be inserted into the closure cap (17) and is connected to it and with a guarantee ring (39) which is designed for this purpose on one of the Container neck (13) formed fourth projection (43) to be held. The retaining ring (33) is connected to the retaining ring (33) by a plurality of guarantee bars (45), with the first opening of the container closure (11) being able to be indicated by breaking the guarantee bars (45). At least one first retaining band (47) with a first and a second end and a first and second edge is formed on the guarantee ring (39). The first end is firmly connected to the retaining ring (33), the second end is firmly connected to the guarantee ring (39), the first edge is detachably connected to the retaining ring (33) with at least a first predetermined breaking web and the second edge is at least a second predetermined breaking web releasably connected to the guarantee ring (39).
    公开号:CH716317A2
    申请号:CH00141/20
    申请日:2020-02-07
    公开日:2020-12-15
    发明作者:Mudassar Ahmed
    申请人:Alpla Werke Alwin Lehner Gmbh & Co Kg；
    IPC主号:
    专利说明:

    Field of invention
    The invention relates to a container closure for closing the pouring opening of a container according to the preamble of claim 1 and a container with such a container closure.
    State of the art
    Closing caps are known from the prior art in the field of plastic closure caps with a guarantee ring, which are held captive on the container and close its pouring opening. The holding function is also important because statutory provisions are to be expected which oblige the closures of beverage bottles to be permanently connected to the beverage bottle even when they are open.
    [0003] There are plastic bottles on the market which have a comparatively large closure cap. The closure cap has a diameter that is the same size as the area of the bottle that adjoins the closure cap. The closure cap can expand upwards in the shape of a mushroom. Such a closure cap can have a diameter of 50 mm and more and, because of its size and mushroom shape, fulfills a decorative purpose in addition to its closure function. The closure cap often has vertically extending ribs on its jacket, which reinforce the visually striking appearance of the closure cap. The closure cap is no longer held on the bottle after it has been unscrewed and therefore does not meet the requirements described above. The guarantee closure is ensured by a circuit board which seals the pouring opening of the bottle and shows whether the bottle is originally closed or has already been opened. The guarantee closure can also be implemented by an adhesive label which extends over the closure cap and the adjoining area of the bottle or the bottle shoulder and tears when the closure cap is opened for the first time.
    Object of the invention
    From the disadvantages of the prior art described, the object of creating a closure cap described above, which is held captive on the container after opening, which it closes, results.
    Another object is to show a captive closure cap which is not a hindrance to any use of the container to be closed.
    description
    The object set is achieved in the case of a container closure for closing the pouring opening of a container through the features cited in the characterizing section of claim 1. Developments and / or advantageous design variants are the subject of the dependent claims.
    The invention is preferably characterized in that at least one first retaining band is formed on the guarantee ring with a first and a second end and a first and second edge, the first end being firmly connected to the retaining ring, the second end with the guarantee ring is firmly connected, the first edge is releasably connected to the retaining ring with at least one first predetermined breaking web and the second edge is releasably connected to the guarantee ring by at least one second predetermined breaking web. The at least one retaining strap makes it possible that closure caps, which cover the container shoulder and whose outer jacket merges continuously into the adjacent container body, are held captive on the container. The present invention makes it possible for closure caps with a relatively large outer diameter between 40 and 80 mm and preferably between 50 and 60 mm to be held captive on the container.
    In a preferred embodiment of the invention, the holding element is an inner cap which is inserted into the closure cap with a second head plate and an adjoining cap shell and the cap shell corresponds to the retaining ring. As a result, existing cap manufacturing technologies can be adopted so that the closure cap is held on the container after opening. The production of the connection between the closure cap and the inner cap also turns out to be less complex, since the closure cap can be attached to the inner cap or the inner cap can be inserted into the closure cap.
    It has proven to be useful if the inner cap is held non-rotatably on the closure cap. As a result, the inner cap is also rotated by turning the sealing cap. The closure cap is preferably held permanently on the inner cap. This can be achieved, for example, by gluing. It is also conceivable that the closure cap can be removed from the inner cap. By removing the cap, the container requires less storage space. The non-rotatable connection can take place in that first ribs are provided on the outside of the cap shell, which cooperate with second ribs of the closure cap.
    In a further preferred embodiment of the invention, an inwardly projecting annular retaining shoulder is formed on the first head plate. This retaining shoulder makes it possible to compensate for different diameters of the outer jacket and the container neck. If these diameters were essentially the same size, the cap shell of the inner cap or the retaining ring could also be held on the inside of the outer shell.
    The non-rotatable connection can take place in that first ribs are provided on the outside of the cap shell, which cooperate with second ribs. The second ribs are formed on the inside of the retaining shoulder and the first ribs can engage in the spaces between the first ribs. It is preferred if the first and second ribs are oriented in the direction of the axis of rotation of the container closure.
    It is preferred if the retaining ring is held on the inside or outside of the holding shoulder. This allows the product design to be adapted to different requirements. If the internal thread, which cooperates with the external thread of the container neck, is to be formed on the retaining shoulder, it is expedient if the retaining ring is attached to the outside of the retaining shoulder. If an inner cap is provided on which the inner thread is formed, it is useful if the retaining ring or the cap shell of the inner cap is held on the inside of the retaining shoulder.
    In a further particularly preferred embodiment of the invention, the retaining ring has an inner diameter which is dimensioned such that the retaining ring is held by a press fit or by a frictional connection on the outside of the retaining shoulder. This feature enables the retaining ring to cooperate with existing closure caps. The known closure caps therefore do not require any adaptation, in particular molded retaining extensions for the retaining ring, since the retaining element is pressed onto the existing retaining shoulder of the closure cap. The closure cap can therefore be produced in existing injection molds. Expensive additional injection molds, in which additional holding extensions for the holding ring are formed on the closure cap, can therefore be dispensed with.
    It proves to be advantageous if the retaining ring has a shoulder at its open end with an inner diameter that widens conically in the direction of the first head plate. This configuration of the shoulder makes it easier for the retaining ring to be pressed onto the retaining shoulder. An oblique pressing of the retaining ring and a possible tilting or damage to the retaining ring are prevented by the provision of the shoulder.
    In a further preferred embodiment of the invention, the retaining ring has a height which corresponds at most to the height of the retaining shoulder. As a result, the entire outer surface of the retaining shoulder can be used so that there is a sufficient frictional connection between the retaining ring and the retaining shoulder. The retaining ring or the retaining element have the shape of a sleeve due to the increased height. In order to save material, the height of the retaining ring or the sleeve can also be reduced. A prerequisite for this is that, despite the reduced friction surface, the retaining ring must be reliably prevented from being pulled off the retaining shoulder by the tensile force occurring when unscrewing.
    [0016] The retaining ring is expediently held in a form-fitting manner on the retaining shoulder on the inside or outside. For example, first projections can be formed on the retaining ring and second projections can be formed on the retaining shoulder, which interact in a form-fitting manner by locking into one another. The form fit prevents the retaining ring from shifting along the axis of rotation. This latching can be designed to be detachable or non-detachable, depending on whether the closure cap is to be removable from the holding element or not.
    In a further embodiment of the invention, a single retaining strap is provided which extends over an arc of a circle with an angle between 180 and 350 degrees and preferably with an angle between 270 and 350 degrees. The required length of the retaining strap can be determined by the size of the arc angle. It goes without saying that, in addition to the choice of the arc angle, the diameter of the retaining ring also has an influence on the length of the retaining strap. The holding strap has an optimal length, for example, when it extends as far as a recessed grip on the container. This allows the user to hold the container and the closure cap with one hand at the same time. As a result, the closure cap does not dangle in a disruptive manner on the container when filling material is poured or drunk directly from the container.
    A gap is expediently provided between the first end and the second end of the retaining strap. The first and second ends of the retaining band are separated from one another by the gap. The narrowest possible gap leads to the longest possible holding strap. The gap is preferably between 0.5 mm and 5 mm wide.
    In a preferred embodiment of the invention, a plurality of first and second predetermined breaking webs is provided and the tear strength of the first webs is equal to and greater than the tear strength of the second webs. In this embodiment, the retaining strap remains on the retaining ring when the closure cap is unscrewed. If necessary, the retaining strap can be separated from the open edge of the retaining ring after it has been unscrewed. This can also be done in stages if not all of the first webs are torn off.
    In a further preferred embodiment of the invention, a plurality of first and second predetermined breaking webs is provided and the tear strength of the second webs is equal to and greater than the tear strength of the first webs. In this embodiment, the retaining band remains on the guarantee ring when the closure cap is unscrewed. Since only the retaining ring has to overcome the height of the container neck without a retaining strap, it can be easily unscrewed. Since the retaining band remains on the guarantee ring, its height does not have to be overcome when unscrewing. It has proven expedient if an inwardly protruding inner seal, e.g. in the form of a sealing cylinder or a sealing ring, which is designed to cooperate in a sealing manner with the inner wall of the container neck in the closed position. The closure cap can therefore act as a so-called "cone-sealer" and reliably seals the bottle neck.
    In a further preferred embodiment of the invention, a second retaining strap is provided with a third and a fourth end and a third and fourth edge, the third end being firmly connected to the retaining ring, the fourth end being firmly connected to the guarantee ring, the third edge is releasably connected to the retaining ring with at least one third predetermined breaking web and the fourth edge is releasably connected to the guarantee ring with at least one fourth predetermined breaking web. Preferably, the first and third ends enclose a first opening angle of at least 110 degrees and at most 170 degrees and preferably of at least 117 and at most 135 degrees with respect to the center point of the closure cap as the vertex, and the second and fourth ends close a second opening angle of at least 110 degrees and at most 170 degrees and preferably include an opening angle of at least 117 and at most 135 degrees with respect to the center point of the closure cap as the vertex. The center of the closure cap lies in the plane between the open edge and the guarantee ring. By choosing the first and the third opening angle, the length of the first and the second retaining strap and their position along the guarantee ring can be precisely determined so that the following functions are fulfilled regardless of the diameter of the closure cap: The first and the second retaining strap have a length which at the same time enables the closure cap to be unscrewed from the container neck. The length of the retaining straps then allows the closure cap to be moved translationally away from the pouring opening and to be able to be moved downwards along the container neck into an open position. By providing two retaining straps, this translational movement is forcibly guided and the closure cap is forced into an open position. In the open position, the closure cap is held captive on the guarantee ring or the container neck. In the open position, it is avoided that the closure cap protrudes into the pouring opening when the filling material is poured out.
    Conveniently, the first and second ends enclose a third opening angle of at least 40 degrees and at most 70 degrees and preferably of at least 45 and at most 63 degrees with respect to the center of the closure cap as the apex. By choosing the third opening angle, the first retaining strap has a defined length, which enables the functions set out above together with the second retaining strap.
    The third and fourth ends expediently enclose a fourth opening angle of at least 40 degrees and at most 70 degrees and preferably of at least 45 and at most 63 degrees with respect to the center of the closure cap as the apex. By choosing the fourth opening angle, the second retaining strap has a defined length, which enables the functions set out above together with the second retaining strap.
    Since the first, second, third and fourth opening angles have a circle center as the apex, the sum of the angles must be 360 degrees.
    In a particularly preferred embodiment of the invention, the third and fourth opening angles are of the same size, so that the first and second retaining straps are of the same length. The same length of the first and the second retaining strap enables the forced translatory movement after the closure cap has been unscrewed from the container neck. The retaining straps allow the cap to be moved in one direction only. Accordingly, there is only one open position for the closure cap.
    In a further preferred embodiment of the invention, the position of the guarantee ring relative to the fourth projections of the container neck can be changed in the axial direction and in the circumferential direction. Because the guarantee ring can be moved upward in the axial direction, it is pulled upward when the closure cap is unscrewed, whereby the first and second retaining straps can be shortened and can be better adapted to the open position. Because the guarantee ring also rotates when the closure cap is rotated, the first and second retaining straps experience only an axial force when the closure cap is unscrewed and are pulled upwards.
    Appropriately, a first and second recess for receiving the first and second retaining band is provided on the edge of the guarantee ring facing the retaining straps. As a result, the first and second retaining straps can be formed from the guarantee ring in a space-saving manner and without additional material expenditure. For example, the first and second retaining straps can be cut out of the guarantee ring or formed during the manufacturing process of the closure cap.
    It proves to be advantageous if the guarantee webs and the first, second, third and fourth predetermined breaking webs are designed such that they emit an acoustic sound when they break. Since the outer jacket covers the webs, it cannot be determined visually whether the webs are broken or not. By emitting a noise when the webs break, it is possible to clearly determine whether the container closure is being opened for the first time or not, whereby a guarantee closure is implemented. It is conceivable that a guarantee strip is glued to the transition from the outer jacket to the container body, which strip breaks when the closure cap is rotated for the first time.
    In a further embodiment of the invention, an internal thread is formed on the inner cap or the retaining shoulder, which can interact with an external thread of the container neck. The two possibilities for the position of the internal thread enable creative freedom of the product design and the container closure can be implemented with a retaining ring which is positioned inside or outside of the retaining shoulder.
    In a further particularly preferred embodiment of the invention, the length of the first and second retaining strap is dimensioned such that the closure cap can be lifted from a closed position after unscrewing the container neck and positioned below a shoulder formed on the container neck in an open position together with the retaining ring is, wherein the closure cap can be held in the open position on the first and second retaining strap, can at least partially rest with the open edge on the container body and can rest on the shoulder with the outside of the outer jacket. The closure cap is pulled into the transition between the shoulder and the container body in the direction of the container neck with the aid of the retaining straps, as a result of which a holder for the closure cap is created at the transition. Due to the support on the shoulder and the container body, the closure cap no longer has any freedom of movement and is therefore kept particularly stable and wobble-free in this open position. It is preferred if the first and second retaining straps can be stretched elastically in the open position of the closure cap. This makes the bracket even more stable in the open position.
    In a particularly preferred embodiment of the invention, the guarantee ring distributed over the circumference arranged slots with an upper edge and a lower edge, the upper edge being formed by a circular arc-shaped portion of the guarantee ring and the lower edge by an inclined in the radial direction inward Wall portion is formed and the lower edge of each slot forms third projections, whereby engagement means are formed for a positive engagement with the fourth projections. Since the engagement means in the form of the inwardly inclined wall sections are not completely present on the guarantee ring and there are also slots, the shape of which further reduces the use of material, the material requirement for plastic can be significantly reduced by up to 5%. In addition, the wall section is immovable inward in the radial direction, as a result of which the guarantee ring is held on the fourth projections (second retaining ring) and can only be pulled over them when the guarantee ring is stretched along its circumference. The guarantee ring is held so tightly by the wall sections on the second retaining ring that the predetermined breaking elements tear safely before the wall sections are secured. However, the wall sections are flexible or movable in the outward radial direction. As a result, the wall sections can be removed from the injection mold or the injection molding tool with little effort. For the same reason, the application force for bouncing open the container closure is significantly reduced compared to the prior art. An expansion of the guarantee ring, which can lead to permanent damage to the holding element, is largely prevented during demolding and bouncing.
    [0032] The closure cap can expediently be bounced onto the bottle neck. The container can therefore be closed fully automatically and accordingly quickly and reliably with the closure cap after it has been filled. It is also conceivable for the inner cap to be bounced open first and for the closure cap to be pushed onto the inner cap in a later method step. The stability, which is necessary for the bouncing, is achieved by providing a sufficient number of guarantee and predetermined breaking bars.
    In a further preferred embodiment of the invention, the retaining strap has a width between 3 mm and 7 mm and preferably a width between 4 mm and 5 mm. This dimensioning ensures that the retaining strap does not tear off unintentionally, especially if the predetermined breaking webs are torn off. In addition, the closure cap is not too high and can be joined together to form a seal with standardized container necks with external threads.
    The invention is also characterized in that the container closure is designed to interact with a standardized container neck with an external thread and an annular projection. The container closure can therefore be placed on standardized container necks, in particular on PET beverage bottles. Containers which are joined together with the container closure therefore do not have to be specially adapted to the container closure.
    The closure cap and the holding element are expediently made of a plastic material, preferably HDPE (high density polyethylene) or PP (polypropylene). The closure cap and the holding element can therefore be produced with standard plastic materials from which known closure caps with a guarantee ring are also produced.
    A further aspect of the invention relates to a container comprising a container body, a container neck adjoining the container body, an external thread formed on the container neck and a container closure according to the description above.
    It proves to be advantageous if a shoulder is formed on the container neck, which is formed below the guarantee ring or is formed by the guarantee ring and the length of the first and second retaining strap is dimensioned such that the closure cap from a closed position after unscrewing can be lifted off the container neck and positioned below the shoulder in an open position, the closure cap being held in the open position on the first and second retaining straps, at least partially resting with the open edge on the container body and resting against the shoulder. The closure cap is therefore kept stable and unchangeable in the open position and does not interfere with the use of the container.
    The shoulder is expediently a support ring which is formed at the transition from the container neck to the container body. Such a support ring is in any case present in a plastic bottle, in particular a bottle made of PET, for reasons of production technology. It is therefore particularly practical to use this support ring as a stop for the closure cap. If there is no support ring on the container, it is also possible to form a shoulder on the container neck with a length in the circumferential direction, which length enables the outer jacket to be supported on the shoulder. It is also conceivable that the guarantee ring is used as a shoulder on which the outer jacket can be supported.
    In a further particularly preferred embodiment of the invention, the first and second retaining straps are elastically tensioned in the open position of the closure cap, whereby the closure cap is pulled against the container neck or the shoulder in the open position. As already explained above, the elastic pretensioning of the retaining straps holds the closure cap on the container neck or the shoulder in a stable and wobble-free manner. Due to the elastic expansion of the retaining straps in the open position, the closure cap can also be transferred into the open position several times and can consequently be screwed onto the container neck several times.
    Further advantages and features emerge from the following description of two exemplary embodiments of the invention with reference to the schematic representations. It shows, not to scale:<tb> <SEP> FIG. 1: a side view of a container closure in a first embodiment, which is screwed onto a bottle;<tb> <SEP> FIG. 2: a section through the container closure along the line II-II;<tb> <SEP> FIG. 3: an assembly of the container closure in an axonometric view comprising a closure cap and a retaining ring;<tb> <SEP> Figure 4: the retaining ring in a detailed view;<tb> <SEP> FIG. 5: the closure cap in a closure position;<tb> <SEP> FIG. 6: the closure cap partially unscrewed from the bottle;<tb> <SEP> FIG. 7: the closure cap in an open position;<tb> <SEP> FIG. 8: a side view of a container closure in a second embodiment, which is screwed onto a bottle;<tb> <SEP> FIG. 9: a section through the container closure from FIG. 8 along the line IX-IX;<tb> <SEP> FIG. 10: an assembly of the container closure from FIG. 8 in an axonometric view comprising a closure cap and an inner cap;<tb> <SEP> Figure 11: the inner cap in a detailed view;<tb> <SEP> FIG. 12: the closure cap of the second embodiment in a closure position;<tb> <SEP> FIG. 13: the closure cap in a first open position;<tb> <SEP> FIG. 14: the closure cap in a second open position;<tb> <SEP> FIG. 15: the holding element in a further embodiment;<tb> <SEP> FIG. 16 a longitudinal section through the holding element from FIG. 15;<tb> <SEP> FIG. 17: an axonometric view of the holding element from FIG. 15;<tb> <SEP> FIG. 18: a longitudinal section through the closure cap with the holding element according to FIG. 15;<tb> <SEP> FIG. 19: a longitudinal section through the closure cap according to FIG. 18 screwed onto a container neck;<tb> <SEP> FIG. 20: a detailed view of the guarantee ring in a further embodiment and<tb> <SEP> FIG. 21: a sectional view of the guarantee ring from FIG. 20 with visualized angles of inclination.
    A container closure is shown in a first embodiment in FIGS. 1 to 7 and the container closure is shown in a second embodiment in FIGS. 8 to 14, the container closure being designated in its entirety with the reference numeral 11. The container closure 11 is screwed onto a container neck 15 of a container 13, in particular a plastic bottle. The container closure 13 comprises a closure cap 17 and a holding element 19 connected to the closure cap 17. The container closure 11 is preferably used to close plastic bottles with a capacity of 700 ml to 2000 ml. As can be seen from the figures, the outer jacket 21 of the closure cap 17 merges directly into the bottle contour and the shoulder 23 of the bottle is covered by the outer jacket. As a result, the closure cap has a relatively large diameter of approx. 50 mm. This leads to a decorative appearance of the closure cap. In addition, the specified diameter leads to the closure cap 17 being particularly easy to grip. The cited effects are reinforced by the fact that the diameter of the closure cap 17 expands upwards in the shape of a mushroom.
    In both embodiments, the closure cap 17 has an outer jacket 21 with an open edge 25 and a first head plate 27 adjoining the outer jacket 21. So that the outer jacket 21 can be aligned with the outer contour of the bottle 13 and the pouring opening 29 can have an inner diameter that is smaller than the diameter of the outer jacket, an inwardly protruding annular retaining shoulder 31 can be formed on the first head plate 27.
    According to the first embodiment, the holding element 19 has a holding ring 33. The retaining ring 33 can be inserted into the closure cap 17 and is thereby connected to it. For example, the retaining ring can be slipped onto the retaining shoulder 31 and is held there in a form-fitting manner on its outer contour. The form fit can be implemented by first projections 35 formed on the retaining ring 33, which interlock with second projections 37 formed on the outer contour of the retaining shoulder 31.
    The holding element 19 also has a guarantee ring 39 which is held in a form-fitting manner with third projections 41 on fourth projections 43 formed on the container neck 15. The guarantee ring 39 is held on the retaining ring 33 with a plurality of guarantee webs 45 which are arranged in the circumferential direction. The guarantee bars 45 are designed to break when the container closure 11 is unscrewed for the first time.
    According to the first embodiment, a first retaining strap 47 and a second retaining strap 49 are formed on the guarantee ring 39. The first retaining strap 47 has a first and a second end 51, 53 and a first and second edge 55, 57. The first end 51 is firmly connected to the retaining ring 33 and the second end 53 is firmly connected to the guarantee ring 39. The first edge 55 is releasably connected to the retaining ring 33 by means of first predetermined breaking webs 59 and the second edge 57 is releasably connected to the guarantee ring 39 by means of second predetermined breaking webs 61. The second retaining strap 49 has a third and a fourth end 63,65 and a third and fourth edge 67,69. The third end 63 is firmly connected to the retaining ring 33 and the fourth end 65 is firmly connected to the guarantee ring 39. The third edge 67 is releasably connected to the retaining ring 33 by means of third predetermined breaking webs 71 and the fourth edge 69 is releasably connected by fourth predetermined breaking webs 73 to the guarantee ring 39. The first and second retaining straps 47, 49 can be received in a first and second recess 75, 77 of the guarantee ring 39.
    An internal thread 79 can be formed on the inside of the holding shoulder 31, which cooperates with an external thread 81 formed on the container neck 15. An inner seal in the form of a sealing cylinder 82 is formed on the inside of the first head plate, which sealingly engages the container neck 15 when the container closure 11 is completely screwed onto the container neck 15 and is in a closed position. Instead of the sealing cylinder, a sealing ring 82 could also be formed, as shown in FIG.
    A support ring 83 is formed on the container neck 15 below the external thread 81. Below the support ring 83, the container neck 15 merges into a container body 85. In FIGS. 5 to 7 it is shown that the container closure 11 can be unscrewed from the closure position shown in FIG. 5 and transferred into an open position. In the open position, the closure cap 17 and the retaining ring 33 are held captive on the bottle 13 by the first and second retaining straps 47, 49. The first and second retaining straps 47, 49 have a length which enables the outside of the outer casing 21 to rest against the underside of the support ring 83. If the bottle 13 does not have a support ring 83, it would also be conceivable for the outer jacket 21 to be supported on the guarantee ring 39. It is preferred if the open edge 25 rests at least partially on the container body 85 and the retaining straps 47, 49 are elastically tensioned in the open position. As a result, the closure cap 17 is pulled onto the support ring 83 and held on the bottle 13 in a particularly stable manner.
    Since the guarantee webs 45 and the predetermined breaking webs 59,61,71,73 are covered by the outer jacket 21, it cannot be determined optically whether these are broken or not. It is therefore preferred if they emit an acoustic sound, for example a crack, when they break. The presence of the crack indicates that the container closure 11 is being opened for the first time.
    In Figures 8 to 14, the second embodiment is shown. In this embodiment, the holding element is an inner cap 19. The inner cap 19 comprises a cap shell 33 and an adjoining second head plate 89. The retaining ring corresponds to the cap shell 33. At the On the inside of the cap jacket 33, the internal thread 79 is formed, which interacts with the external thread 81. The inner cap is inserted into the retaining shoulder 31 and held there in a form-fitting and rotationally fixed manner. It would also be conceivable for the inner cap to be held on the inside of the outer jacket 21 if the external appearance of the closure cap 17 allows the diameters of the outer jacket 21 and the cap jacket 33 to correspond. A sealing ring 82 is formed on the inside of the cap jacket to seal the pouring opening 29. So that the inner cap 19 is held non-rotatably on the retaining shoulder 31, first ribs 91 are formed on the outside of the cap shell 33. Second ribs 93 are formed on the inside of the retaining shoulder 31. The first ribs 91 engage in the spaces between the second ribs 93 when the inner cap 19 is inserted into the holding shoulder 31. It is preferred if the open ends of the first and / or second ribs 91, 93, which face one another, are beveled. As a result, the ribs 91, 93 align with one another when the closure cap 17 is slipped onto the inner cap 19 and the inner cap 19 automatically latches in the retaining shoulder 31.
    So that the inner cap 19 is also held in the vertical direction in the holding shoulder 31, the first projections 35 are formed on the outside of the cap shell 33. The first projections 35 interact in a form-fitting manner with the second projections 37, which are formed on the inside of the retaining shoulder 31.
    In the second embodiment, only a first retaining strap 47 is provided. The first retaining strap 47 extends over an arc of a circle with an angle between 180 and 350 degrees and preferably with an angle between 270 and 350 degrees. As a result, the first retaining strap 47 in the open position has a sufficient length so that the closure cap does not get in the way of the pouring stream when filling material is poured out. A gap 95 is provided between the first and the second end 51, 53.
    The tensile strength of the first predetermined breaking webs 59 is preferably the same and the tensile strength of the second predetermined breaking webs 61 is the same. Because either the tensile strength of the first breaking webs 59 is greater than the tensile strength of the second breaking webs 61 or vice versa, the length of the first retaining strap 47 can be determined by the user. When the closure cap 17 is unscrewed, only the first or second predetermined breaking webs break. As a result, the first retaining strap 47 has a reduced length after the closure cap 17 has been unscrewed. If the user wishes a longer first retaining strap, the intact first or second predetermined breaking webs can be broken, whereby the first retaining strap 47 can be lengthened. This can be useful, for example, when pouring filling material from the bottle 13, since the user can also hold the closure cap 17 with the hand with which he is holding the bottle (FIG. 14). Another embodiment of the holding element 19 is shown in FIGS. The inside diameter 97 of the retaining ring 33 is dimensioned such that it is held in a frictionally locking manner on the outside of the retaining shoulder 31 by a press fit. A press fit is therefore implemented between the retaining ring 33 and the retaining shoulder. At its open end 99, which faces away from the guarantee ring 39, the retaining ring 33 has a shoulder 101. The shoulder 101 has a conical shape in that its inside diameter widens continuously in the direction of the first head plate. This makes it easier to press the retaining ring 33 onto the retaining shoulder 31 without the retaining ring 33 being tilted or pressed onto the retaining shoulder 31 at an angle. The retaining ring 33 expediently has a height which corresponds at most to the height of the retaining shoulder 31. As a result, the largest possible friction surface is provided and the retaining ring 33 reliably holds on the retaining shoulder 31, even if increased tensile forces occur when the closure cap 17 is unscrewed. The retaining ring 33 therefore preferably has the shape of a sleeve. In order to save material, the height of the retaining ring 33 can also be reduced, provided that the friction surface is sufficient for a tight press fit. It goes without saying that several combinations of the described features of the container closure are possible. The retaining ring 33 according to the first embodiment can have a first retaining band 47 as described in the second embodiment, or it can have a first and a second retaining band 47, 49 as already described above. It is just as possible for the inner cap 19 to have a first and a second retaining strap 47, 49, as described in the first embodiment, or to have only a first retaining strap 47.
    According to the following description of the figures of FIGS. 15 to 21, the third projections 41 can be designed in a further embodiment. This embodiment of the third projections 41 is the content of the Swiss patent applications with the application numbers 01467/19 and 01695/19, the priorities of which have been claimed and the content of which is hereby incorporated into the present patent application. Slits 103 are provided on the guarantee ring, distributed over the circumference of the guarantee band 17. The slots 103 each have an upper edge 105 and a lower edge 107. The top edge 105 is formed by a circular arc-shaped section of the guarantee ring 39. The lower edge 107 corresponds to the free edge of a wall section 109 inclined inward in the radial direction. The lower edge 107 has a smaller radius than the guarantee ring 39 due to the inner inclination of the wall section 109 and can therefore strike an abutment (fourth projections 43) of the container neck 15, when the closure cap 17 is unscrewed from the container neck 15. The abutment is realized by a second retaining ring 43 which is formed below the external thread 81 on the container neck 15. When the closure cap 17 is unscrewed, the lower edge 107 engages the second retaining ring 43 in a form-fitting manner, as a result of which the guarantee ring 39 is reliably held on the second retaining ring 43 even with high axial forces.
    Each wall section 109 has a first sub-section 111 and two second sub-sections 113. The first sub-section 111 represents a jacket section folded inward and is preferably flat. The second sub-sections 113 adjoin the inwardly facing sides of the first sub-section 111 and connect it to the guarantee ring 39. The second sub-sections 113 can be curved or flat and face one another obliquely inward. The lower edge 107 of the slot 103 corresponds to the free edges of the first section 111 and of the second section 113 and lies in a plane 115, which is shown in FIG. The plane 115 is preferably oriented perpendicular to the central axis 117 of the closure cap 17. These described design features of the wall section 109 have the advantage that the wall section 109 can rest with the entire lower edge 107 on the second retaining ring 43 and does not yield upwards in the event of an axial tensile force. As a result, the guarantee ring 39 is held permanently on the second retaining ring 43 or can only be removed from the retaining ring 43 with destruction. A movement of the first sub-section 111 inward in the radial direction is prevented by the provision of the second sub-sections 113. However, it is possible for the first partial section 111 to move outward in the radial direction. This movement is flexible and the wall section 109 returns to its inwardly inclined basic position after it has been pressed radially outward. This has the further advantage that the holding element 19 can be easily removed from the mold and can be bounced onto the container neck 15 together with the holding shoulder 31 with little force. Demolding from an injection mold and bouncing onto a container neck 15 can take place due to the flexibility of the wall section 109 without the risk of the wall section 109 being damaged.
    It is preferred if the inclined wall sections 109 have a wall thickness that is reduced compared to the rest of the guarantee ring 39. FIG. 21 shows that the region of the lower edge 107 has the smallest wall thickness. As a result, the flexibility of the wall section 109 described above is further improved radially outward. The wall thickness of the wall section 109 increases linearly downwards from the lower edge 107.
    In FIGS. 20 and 21, the guarantee ring 39 is shown without the retaining ring 33. In FIGS. 20 and 21 it can be clearly seen that an annular bead 119 is formed on the guarantee ring 39 above the slots 103, on which the upper edges 105 lie.
    In FIG. 21, a first and a second angle of inclination 121, 123 are entered. The first angle of inclination 121 indicates the inclination of the first partial section 111 with respect to the plane of the lower edge 107. The first angle of inclination 121 has a size between 60 and 80 degrees and preferably between 65 and 75 degrees. The larger the first angle of inclination 121, the better the stability of the wall sections 109 against vertical forces or axial tensile forces caused by unscrewing the cap 17. However, the first angle of inclination 121 must not become too large, since otherwise the second retaining ring 43 will not can be sufficiently undercut.
    The second angle of inclination 123 indicates the inclination of the slot 103 relative to the plane of the lower edge 107. The straight connecting line 125, which represents the inclination of the slot 103, is a connection of the upper edge 105 to the lower edge 105 in a plane which is spanned by the central axis 117 and the straight connecting line 125. The second angle of inclination 123 is enclosed by the connecting straight line 125 and the plane 115. The second angle of inclination 123 has a size between 30 and 50 degrees and preferably between 35 and 45 degrees. The greater the second angle of inclination 123, the easier it is for the retaining ring 33 to be removed from the mold.
    The invention makes it possible that container closures 11, the closure caps 17 of which have a large decorative outer diameter, whereby the outer jacket 21 can continuously merge into the contour of the adjacent container body 85, held captive on the bottle or on the container 13 after unscrewing are.
    Legend:
    11 Container closure 13 Container, bottle 15 Container neck 17 Closure cap 19 Retaining element, inner cap 21 Outer jacket 23 Shoulder 25 Open edge 27 First head plate 29 pouring opening 31 Retaining shoulder 33 Retaining ring, cap jacket 35 First protrusions 37 Second protrusions 39 Guarantee ring 41 Third protrusions 43 Fourth protrusions, second retaining ring 45 guarantee bars 47 first tether 49 second tether 51 first end of first tether 53 second end of first tether 55 first edge of first tether 57 second edge of first tether 59 first breaking bars 61 second breaking bars 63 third end of second tether 65 fourth end of second retaining strap 67 Third edge of the second retaining strap 69 Fourth edge of the second retaining strap 71 Third predetermined breaking webs 73 Fourth predetermined breaking webs 75 First recess 77 Second recess 79 Internal thread 81 External thread 82 Sealing cylinder, sealing ring 83 Support ring, shoulder 85 Container body 89 Second head plate 91 Ers th ribs 93 Second ribs 95 Gap 97 Inner diameter of the retaining ring 99 Open end 101 Shoulder 103 Slits 105 Upper edge 107 Lower edge 109 Wall section 111 First section 113 Second sections 115 Plane 117 Central axis 119 Bead 121 First angle of inclination 123 Second angle of inclination 125 Connecting straight line
    权利要求:
    Claims (25)
    [1]
    1. Container closure (11) for closing the pouring opening (29) of a container (13) with a container neck (15), the container closure (11) having- A closure cap (17) with- An outer jacket (21) having an open edge (25) and- A first head plate (27) adjoining the outer jacket (21) and- A holding element (19) with- A retaining ring (33) which can be inserted into the closure cap (17) and is connected to it, and- A guarantee ring (39) which is designed to be held on a fourth projection (43) formed on the container neck (13) and which is connected to the retaining ring (33) by a plurality of guarantee webs (45), the first being The opening of the container closure (11) can be indicated by breaking the guarantee bars (45),
    characterized,that at least one first retaining band (47) with a first and a second end (51,53) and a first and second edge (55,57) is formed on the guarantee ring (39), the first end (51) with the retaining ring (33) is firmly connected, the second end (53) is firmly connected to the guarantee ring (39), the first edge (55) is detachably connected to the retaining ring (33) with at least one first predetermined breaking web (59) and the second edge (57) is releasably connected with at least one second predetermined breaking web (61) with the guarantee ring (39).
    [2]
    2. Container closure according to claim 1, characterized in that the holding element is an inner cap (19) which is inserted into the closure cap (17) with a second head plate (89) and an adjoining cap casing (33) and the cap casing (33) corresponds to the retaining ring.
    [3]
    3. Container closure according to claim 2, characterized in that the inner cap (19) is held non-rotatably on the closure cap (17).
    [4]
    4. Container closure according to one of the preceding claims, characterized in that an inwardly projecting annular retaining shoulder (31) is formed on the first head plate (27).
    [5]
    5. Container closure according to claim 4, characterized in that the retaining ring (33) is held on the inside or outside of the holding shoulder (31).
    [6]
    6. Container closure according to claim 4 or 5, characterized in that the retaining ring (33) on the retaining shoulder (31) is held inside or outside in a form-fitting manner.
    [7]
    7. Container closure according to one of claims 1 or 4, characterized in that the retaining ring (33) has an inner diameter (97) which is dimensioned such that the retaining ring (33) by a press fit or by a friction fit on the outside of the Holding paragraph (31) is held.
    [8]
    8. Container closure according to one of claims 1 or 4 to 7, characterized in that the retaining ring (33) at its open end (99) has a shoulder (101) with a conically widening inner diameter in the direction of the first head plate (27).
    [9]
    9. Container closure according to one of claims 1 or 4 to 8, characterized in that the retaining ring (33) has a height which corresponds at most to the height of the retaining shoulder (31).
    [10]
    10. Container closure according to one of the preceding claims, characterized in that a single retaining strap (47) is provided which extends over an arc of a circle with an angle between 180 and 350 degrees and preferably with an angle between 270 and 350 degrees.
    [11]
    11. Container closure according to one of the preceding claims, characterized in that a gap (95) is provided between the first end (51) and the second end (53) of the retaining strap (47).
    [12]
    12. Container closure according to one of the preceding claims, characterized in that a plurality of first and second predetermined breaking webs (59, 61) is provided and the tear strength of the first predetermined breaking webs (59) is equal to and greater than the tear strength of the second predetermined breaking webs (61 ).
    [13]
    13. Container closure according to one of claims 1 to 11, characterized in that a plurality of first and second predetermined breaking webs (59,61) is provided and the tear strength of the second predetermined breaking webs (61) is equal to and greater than the tear strength of the first predetermined breaking webs (59).
    [14]
    14. Container closure according to one of the preceding claims, characterized in that a second retaining strap (49) with a third and a fourth end (63,65) and a third and fourth edge (67,69) are provided, the third end ( 63) is firmly connected to the retaining ring (33), the fourth end (65) is firmly connected to the guarantee ring (39), the third edge (67) is detachably connected to the retaining ring (33) with at least one third predetermined breaking web (71) and the fourth edge (69) is detachably connected to at least one fourth predetermined breaking web (73) with the guarantee ring (39).
    [15]
    15. Container closure according to claim 14, characterized in that on the edge of the guarantee ring (39) facing the first and second retaining straps (47, 49) a first and second recess (73, 75) for receiving the first and second retaining straps (47, 49) is provided.
    [16]
    16. Container closure according to one of claims 2 to 15, characterized in that on the first or on the second head plate (27, 89) an inwardly projecting inner seal, e.g. in the form of a sealing cylinder (82) or a sealing ring (82), which is designed to interact in a sealing position with the inner wall of the container neck (15).
    [17]
    17. Container closure according to one of claims 14 to 16, characterized in that the guarantee webs (45) and the first, second, third and fourth predetermined breaking webs (59,61,71,73) are designed such that they produce an acoustic sound when broken give away.
    [18]
    18. Container closure according to one of claims 4 to 17, characterized in that an internal thread (79) is formed on the inner cap (19) or the retaining shoulder (31), which can interact with an external thread (81) of the container neck (15).
    [19]
    19. Container closure according to one of claims 14 to 18, characterized in that the length of the first and second retaining straps (47, 49) is dimensioned such that the closure cap (17) can be lifted from a closure position after unscrewing from the container neck (17) and can be positioned below a shoulder (83) formed on the container neck (17) in an open position together with the retaining ring (33), wherein the closure cap (17) can be held in the open position on the first and second retaining straps (47, 49), can rest at least partially with the open edge (25) on the container body (85) and can rest against the shoulder (83), preferably with the outside of the outer jacket (21).
    [20]
    20. Container closure according to one of the preceding claims, characterized in that the guarantee ring (39) has slots (103) distributed over the circumference with an upper edge (105) and a lower edge (107), the upper edge (105) being shaped like an arc of a circle extending portion of the guarantee ring (39) is formed and the lower edge (107) is formed by a radially inwardly inclined wall section (109) and that the lower edge (107) of each slot (103) forms third projections (41), whereby Engaging means are formed for a positive engagement with the fourth projections (43).
    [21]
    21. Container closure according to one of the preceding claims, characterized in that the closure cap (11) can be bounced onto the bottle neck (15).
    [22]
    22. Having container (13)- a container body (85),- A container neck (15) adjoining the container body (85),- An external thread (381) formed on the container neck (15) and- A container closure (11) according to one of the preceding claims.
    [23]
    23. Container according to claim 22, characterized in that a shoulder (83) is formed on the container neck (15), which is formed below the guarantee ring (39) or is formed by the guarantee ring (39) and the length of the first and second Retaining strap (47, 49) is dimensioned such that the closure cap (17) can be lifted from a closure position after unscrewing from the container neck (15) and can be positioned below the shoulder (83) in an open position, the closure cap (17) in the Open position on the first and second retaining straps (47,49) is held, with the open edge (25) at least partially rests on the container body (83) and rests on the shoulder (83).
    [24]
    24. Container according to claim 23, characterized in that the shoulder is a support ring (83) which is formed at the transition from the container neck (15) to the container body (85).
    [25]
    25. Container according to claim 23 or 24, characterized in that the first and second retaining straps (47, 49) are elastically tensioned in the open position of the closure cap (17), whereby the closure cap (17) in the open position on the container neck (15) or the paragraph (83) is pulled.
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    同族专利:
    公开号 | 公开日
    CH716256A1|2020-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2329536B1|1973-07-02|1978-04-14|Somepla Sa|
    FR2785264B1|1998-10-29|2001-01-05|Crown Cork & Seal Tech Corp|CAPPING DEVICE|
    CN1830730A|2005-01-01|2006-09-13|郭永军|Hinge type antitheft bottle cap|
    US20100233394A1|2006-12-13|2010-09-16|Bormioli Rocco & Figlio S.P.A.|Process for making plastic closures and closure|
    US10836549B2|2015-04-02|2020-11-17|Thiscap Inc.|Cap for container|
    FR3064985B1|2017-04-10|2019-04-26|Bericap|CLOSURE ASSEMBLY COMPRISING A CAPSULE COVERING A CAPSULE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00725/19A|CH716256A1|2019-06-05|2019-06-05|Container closure for closing the pouring opening of a container and container with such a captive container closure.|PCT/EP2020/065444| WO2020245250A1|2019-06-05|2020-06-04|Container closure|
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