EP0560051A1 - Schraubverschluss - Google Patents

Schraubverschluss Download PDF

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Publication number
EP0560051A1
EP0560051A1 EP93101774A EP93101774A EP0560051A1 EP 0560051 A1 EP0560051 A1 EP 0560051A1 EP 93101774 A EP93101774 A EP 93101774A EP 93101774 A EP93101774 A EP 93101774A EP 0560051 A1 EP0560051 A1 EP 0560051A1
Authority
EP
European Patent Office
Prior art keywords
ring
closure
tabs
screw
guarantee ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP93101774A
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German (de)
English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcoa Deutschland GmbH Verpackungswerke
Original Assignee
Alcoa Deutschland GmbH Verpackungswerke
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcoa Deutschland GmbH Verpackungswerke filed Critical Alcoa Deutschland GmbH Verpackungswerke
Publication of EP0560051A1 publication Critical patent/EP0560051A1/de
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges

Definitions

  • the invention relates to a screw closure for containers having an external thread in their mouth region, in particular for bottles, according to the preamble of claim 1.
  • Screw closures with guarantee rings are used in particular where there is a consumer need to make tampering, in particular the first opening of the closure, recognizable.
  • the closures are designed in such a way that their guarantee ring remains intact when applied to the container or bottle, but that when the guarantee ring is opened for the first time it is completely torn off from the rest of the closure (in particular in the case of single-use bottles) or - particularly in the case of reusable bottles - at areas of weakness in its circumference Ring segments is blown open so that the guarantee ring can be lifted off the thread of the container together with the screw cap. In both cases, it can be seen by a consumer that a container has already been opened.
  • the closure should be easily fed to a recycling process in its complete state.
  • a screw cap especially for bottles, is equipped with a guarantee ring that remains intact along its circumference, i.e. in the horizontal direction, when it is opened for the first time, because it is designed as a continuous ring, injuries to the screw cap even after the first opening locked out. Protruding burrs or edges cannot be opened the first time you open this screw cap arise, so that on the one hand injuries to the consumer but on the other hand disabilities in the reprocessing of the closure are reduced to a minimum.
  • the closure with the features mentioned can be easily sorted with the aid of so-called hoppers and fed to a recycling process.
  • the guarantor ring is equipped with at least one deformation area which overstretches when the closure is opened for the first time and the predetermined breaking line is torn open, and is irreversibly deformed in such a way that it keeps the spread ring area in the spread position. Attempts to completely bend the guarantee ring back to its original position and to make the manipulations on the closure invisible therefore fail. The consumer can therefore reliably recognize the first opening of the container.
  • the guarantee ring per se viewed in the circumferential direction — remains intact after the first opening, injuries to the screw closure once opened are not possible — unlike in the case of the ring segments of conventional snap-on closures.
  • the guarantee ring of the type mentioned here does not have any ring segments which have been blown open and which are removed by the consumer and can therefore no longer be fed to a recycling process. It also shows that the smooth outer wall of the screw cap reduces the possibility of injury to a minimum when the container is being transported. In addition, it is practically impossible for objects to get caught on the outside of the screw closure and damage it, so that the consumer mistakenly believes that the closure has already been opened.
  • a preferred embodiment of the screw closure preferably has three segments, each of which extends over a range of 120 °. At the ends of the individual ring segments, retaining webs span the predetermined breaking line, which do not tear off when the closure is opened for the first time. In the immediate vicinity of these retaining bars, the wall of the guarantee ring is provided with deformation areas which deform irreversibly when first opened.
  • closures are used which each have a deformation area on both sides of the individual ring segments. The spread ring segments are therefore particularly safe in their Spread position held. Tampering with the closure can be easily recognized from all directions.
  • the deformation areas of the guarantee ring have material deformation sections.
  • the deformation ensures that the wall material of the guarantee ring is strengthened and / or pretensioned within the ring.
  • the material hardening within the deformation areas leads to the spread ring area being better held in this position and not being able to be returned to its original position. If a prestressing is introduced into the guarantee ring with the aid of the material deformation, this is designed so that the prestressing forces push the ring into its spread-apart position, so that a return of the spread-apart ring segments can be excluded after the predetermined breaking line has been torn.
  • increased security is achieved in that attempts to bend the guarantee ring back into its original position are made even more difficult.
  • screw closure in which the outside of the guarantee ring is highlighted at least in the area in which the predetermined breaking line tears open when the closure is opened for the first time.
  • the consumer can see through the predetermined breaking line to barbs designed as tabs, the top of which is contrasted in color with the color of the outside of the guarantee ring.
  • This Broken screw caps are very easy to distinguish from undamaged.
  • an embodiment of the screw closure is preferred in which the closure cap and the guarantee ring are made in one piece from plastic.
  • Such closures can be produced particularly inexpensively, for example by means of a plastic injection molding process or compression molding process.
  • an embodiment of the screw closure is preferred in which the guarantee ring is connected to a plastic support ring via the predetermined breaking line and both parts are formed in one piece and can preferably be produced by means of a plastic injection molding process or a compression molding process.
  • the unit consisting of a carrying and guarantee ring can be used on the one hand in connection with plastic sealing caps and on the other hand together with metal sealing caps.
  • the guarantee ring can thus be easily combined with caps of a conventional type without requiring special adaptation.
  • the screw cap described below has a customary cap that starts from a seal-receiving bottom that the mouth of the container or covers the bottle to be closed, and a side wall with an internal thread that springs from it.
  • At the bottom of the wall at least one barb arises, which is designed to be resilient and springs back against the inner wall of the screw cap when the container is first closed and thus slides along the external thread of the container.
  • Figure 1 shows a horizontal section through a screw closure, which is guided parallel to the cover area closing the mouth of the container.
  • the representation in FIG. 1 shows a plan view of the ring cut off from the closure, that is to say a view from the bottom of the closure to the outside.
  • the screw closure 1 has retaining webs 5 and tear-off webs 7 projecting from its inner wall 3.
  • the holding and tear-off webs span a predetermined breaking line, which separates a guarantee ring 9 from the rest of the screw closure.
  • the tear-off webs 7 extend over a much smaller area than the holding webs 5.
  • the tear-off webs can be 0.3 to 0.4 mm wide, while the width of a holding web could be approximately 3 mm.
  • the inside diameter of the closure or guarantee ring 9 is approx. Is 29 mm in size.
  • the thickness of the holding or tear-off webs here is approximately 0.4 mm.
  • the exemplary embodiment shown here has nine retaining webs arranged at a distance from one another. From the inner surface 3 of the guarantee ring 9, two tabs 11 and 13 serve as barbs, which are provided on their upper side with stiffening webs 15, the width of which is considerably smaller than that of the individual tabs. One of the tabs 11 is here provided with a wider stiffening ramp 17, the function of which will be discussed in more detail below.
  • the surface of the tabs 11 and 13 is provided with a groove-shaped recess 19, the dimensions of which are selected so that when the tabs 11 and 13 are folded against the inner surface 3, the tear-off webs 7 come to rest in the recess 19 and one Do not hinder the swivel movement of the tabs.
  • a total of two tabs 11 and 13 serving as barbs are shown on the inner surface thereof, which are arranged in a ring segment extending approximately 120 °, at the ends of which a holding web 5 is provided.
  • the width of the tabs is chosen so that they originate near the holding webs and extend almost over the entire length of the segment. In the middle of the segment there is a gap between the tabs.
  • the two side edges of the first tab 11 close with the inner surface 3 the guarantee ring 9 an angle of about 90 °.
  • the side edge facing the first tab 11 is also designed so that it encloses an angle of approximately 90 ° with the inner surface 3 of the guarantee ring 9.
  • the opposite side edge slopes down like a ramp at an angle of approx. 45 ° to the inner surface.
  • the wall 21 of the guarantee ring 9 can have a uniform thickness over its entire course.
  • depressions 23 are introduced into the wall from the outside, which lead to a reduction in the wall thickness to approximately one third.
  • the depressions, which can also be introduced on the inside of the wall, are each provided in the region of holding webs 5, which are arranged in the end region of the ring segment on which the tabs 11 and 13 are provided.
  • the width of the depressions 23 is approximately three times the width of the holding webs 5.
  • the screw cap 1 is provided with an internal thread on its inside.
  • the tabs 11 and 13 are arranged so that they are arranged in the area of the thread runout, that is to say in the area which is subjected to the greatest force when the closure is opened.
  • Figure 2 shows a section of a further embodiment of a guarantee ring 9, on the inner surface 3 in turn tabs 11 and 13 arise. Here, too, apart from tear-off webs 7, a holding web 5 can be seen. Corresponding parts already shown in FIG. 1 are provided with the same reference numerals, so that their description can be dispensed with.
  • the thickness of the wall 21 in the region of the holding webs 5 is reduced by introducing a depression 23.
  • material deformation sections 27 are provided in the immediate vicinity of the retaining web in the wall region 25 of reduced thickness created by the recess 23, which were introduced into the wall of the guarantee ring 9, for example, by a rolling or embossing process.
  • the wall areas 25, which serve as deformation areas according to the following explanations, are subjected to cold deformation by the rolling or embossing process, which on the one hand leads to material hardening and on the other hand to a prestressing within the guarantee ring.
  • the configuration of the material deformation sections 27 can be matched, for example, to the material properties of the guarantee ring, which is made of plastic.
  • the material deformation sections 27 can also be provided on the inner surface of the guarantee ring 9. Even in this way, material hardening or pre-stretching can be achieved, due to which a splayed ring segment is held securely in this position.
  • FIG. 3 which shows a plan view of the outer surface of the guarantee ring 9 shown in FIG. 2 in the region of a retaining web 5
  • the recess 23 has parallel side walls 23a and 23b and that the material deformation distances 27 are circular. They are arranged within the recess 23 so that they each come to lie half above and below a predetermined breaking line 29 which is spanned by the retaining webs 5 and the tear-off webs 7. In this way it is achieved that material deformation or prestressing occurs only in the upper region of the wall 21 of the guarantee ring 9. A material deformation also takes place in the area of the closure 1, which lies above the guarantee ring 9, but is ultimately of no importance for the function of the guarantee ring.
  • Figure 4 shows a further embodiment of a closure 1 in a bottom view. Parts that have already been explained with reference to FIGS. 1 to 3 are provided with the same reference numbers, so that their detailed description can be dispensed with here.
  • the number and shape of the tabs can be adapted to the conditions of the container to be closed. In principle, it is also possible to provide a single tab approximately in the middle of a ring segment, which deflects the segment when the closure is first opened and thus leads to an irreversible deformation of the deformation regions.
  • the number of ring segments can also be freely selected. Guarantee rings with one or three segments are shown in the figures. It is of course also possible to provide two segments or more than three segments.
  • FIG. 4 shows areas of the internal thread 37 already mentioned above, which is provided on the inner surface 3 of the screw closure.
  • the wall 21 is reduced in thickness by depressions 23.
  • Material deformation sections 27 are again provided on one of the holding webs in the wall region 25 of reduced thickness.
  • Sections of this type have been drawn in only one of the depressions 23 by way of example only. They are preferably provided on all end regions of the ring segments, that is to say in their deformation regions.
  • three adjacent channels have been introduced as material deformation sections 27 into the wall region 25 of reduced material thickness.
  • the number of channels can be adapted to the plastic material used for the guarantee ring 9. It is also possible to vary the width of the channels in their course: for example, in the area of the guarantee ring 9 which adjoins the predetermined breaking line 29 (see FIG. 3), the width of the channels could be chosen to be greatest while at the opposite end of the guarantee ring at its lower edge, the channels have a smaller width. Overall, in this embodiment there would be a V-shaped run of the channels, with the result that there is greater material deformation in the upper wall area of the guarantee ring 9 and thus greater prestress than in the lower wall area.
  • FIG. 5 shows a vertical section through a further exemplary embodiment of a screw closure 1. Parts already mentioned in FIGS. 1 to 4 are given the same reference numbers here, so that their descriptions can be dispensed with.
  • the sectional view shows that the screw closure has a horizontal bottom 39 covering the mouth region of a container to be closed, on the inside of which a seal 41 is suitably attached.
  • a side wall 43 arises from the floor 39; on the inner surface of which the internal thread 37 is provided.
  • the embodiment of the screw closure 1 shown here is a full plastic closure, which is formed in one piece with the guarantee ring 9 and is connected to it via a predetermined breaking line 29 which is spanned by tear-off webs 7 and retaining webs 5. The webs arise on the inner surface of the screw closure or guarantee ring and remain intact when a circumferential horizontal cut is made if the cut is only made so deep that only the side wall 43 or the wall 21 of the guarantee ring 9 is just cut through.
  • the horizontal section can be made all the way round, regardless of the embodiment of the screw cap 1.
  • the horizontal section need only be provided in the region of this segment, because a predetermined breaking line is only required there.
  • the guarantee ring remains connected to the wall 43 via the retaining webs 5 or the undamaged side wall even when the associated closure is opened for the first time.
  • the trough-shaped recesses 19 on the upper sides of the tabs 11 and 13 can be seen particularly clearly, which serve to accommodate the associated tear-off webs 7 when the tabs are folded onto the inner surface of the closure.
  • the tabs are inclined downwards. This arrangement results after the closure 1 has been produced in a plastic injection molding process.
  • the screw cap When the screw cap is first placed on a container to be closed, the tabs 11 and 13 are pivoted upwards at an angle, which is shown, for example, in FIG. 7 below.
  • abutment areas 45 are provided above the predetermined breaking line 29, which are characterized in that the wall thickness to the interior of the closure is increased in these areas.
  • All of the exemplary embodiments have in common that the length of the tabs 11 and 13 is selected such that they abut against the inner surface of the screw closure when it is folded up above the predetermined breaking line 29.
  • the stiffening webs 15 or stiffening ramps 17 have a greater thickness on the end face of the tabs 11 than in the area the origin of the tabs.
  • the length of the tabs is chosen in comparison to the length of the ramps so that the ramps do not reach the inner surface 3 of the guarantee ring 9. In this way it is ensured that when the tabs are folded up, only slight forces are exerted on the inner surface of the guarantee ring 9 and that, if necessary, forces are exerted on the inner surface of the side wall 23 of the closure 1. As a result, the predetermined breaking line remains intact when the closure is first placed on a container.
  • FIG. 6 shows a section which is guided horizontally through the screw closure 1 shown in FIG. 5 above the predetermined breaking line 29. In this illustration, one can see on the upper sides of the tabs 11 and 13. In the figures discussed, parts that correspond to one another are provided with the same reference numbers in this figure, so that the description of these elements can be omitted here.
  • the guarantee ring 9 in turn has three ring segments, from each of which two tabs 11 and 13 serving as abutments arise.
  • the stiffening webs 15 and the stiffening ramps 17 are clearly visible.
  • the trough-shaped recesses 19, which are each assigned to a tear-off web 7, are clearly visible.
  • the wall regions 25 are not provided with material deformation sections. However, these sections explained with reference to FIGS. 2 and 3 or 4 can also be provided here. 6 shows, in particular, the contact areas 45, which are distinguished by a material application projecting into the interior of the closure and each serve as a stop for the stiffening ramp 17 of the tab 11.
  • FIG. 7 shows a vertical section through a further exemplary embodiment of a screw closure 1. Parts described with reference to the abovementioned figures have the same reference symbols, so that their detailed description can be dispensed with.
  • the screw cap 1 shown in FIG. 7, like the one shown in FIG. 5, has a horizontal base 39 which is assigned to the mouth region of the container to be closed and is provided with a seal 41.
  • the side wall 43 extending from the bottom extends essentially vertically, so that a cup-shaped or cup-shaped closure is formed, on the inside of which an internal thread 37 is provided.
  • a guarantee ring 9 is provided over a predetermined breaking line 29, which is spanned by tear-off webs 7 and holding webs 5, from whose inner surface 3 serving as barbs tabs 11 and 13 arise.
  • the tabs are inclined upwards and enclose an acute angle of approx. 40 ° with the inner surface of the closure.
  • each tab is introduced into the wall of the closure from below, for example, by an embossing process. These areas are preferably introduced by cold working, so that the tabs are stabilized in the position shown due to the material stiffening that occurs.
  • the screw closures shown with reference to FIGS. 1 to 7 are designed as all-plastic closures. That is, the caps comprising the base 39 and the side wall 43 are made of plastic, as is the guarantee ring 9. Both parts consist of one piece and are preferably manufactured in a plastic injection molding process.
  • the predetermined breaking line 29 is produced by a circumferential horizontal section, the depth of which is selected such that the side wall 43 or the wall 21 of the guarantee ring 9 is cut through, but not the tear-off webs 7 protruding into the interior of the closure on the inside surface of the guarantee ring or retaining webs 5. The undamaged webs hold the guarantee ring on the sealing cap.
  • the guarantee ring 9 can very well also be provided with a so-called combination closure 10, which has a closure cap made of deep-drawing material, preferably aluminum and carries a guarantee ring in its lower wall area.
  • the closure cap has a base 51 which is assigned to the mouth region of a container 53, which is only indicated here.
  • a side wall 55 arises from the bottom 51 and is formed in its lower edge region 57 in such a way that it receives or holds a support ring 59 which is connected to a guarantee ring 9 via a predetermined breaking line 29.
  • the predetermined breaking line 29 is, as explained with reference to FIGS. 1 to 7, spanned by retaining webs 5 and tear-off webs 7, preferably the support ring 59 and the guarantee ring 9 are formed in one piece and produced by means of a plastic injection molding process.
  • the guarantee ring 9 is of identical design, as explained with reference to FIGS. 1 to 7.
  • the support ring 59 could, for example, have a larger outer diameter than the guarantee ring, so that it is anchored to the closure cap by a flanged edge in the lower wall area of the screw closure 10.
  • the inner surface of the support ring 59 is designed in the same way as the inner surface of the lower side wall region of the screw closures 1 made of all-plastic (see FIGS. 1 to 7).
  • contact areas 45 can also be provided, against which stiffening ramps 17 provided on the tabs 11 of the guarantee ring 9 strike when the screw closure 10 is first placed on a container 53, the tabs being against the inner surface of the support ring 59.
  • the tabs With such a fold up the tabs is subjected to an expansion force on the inner surface of the support ring above the predetermined breaking line 29, while the predetermined breaking line itself remains practically unloaded. Therefore, the combination of support and guarantee ring remains intact when the closure 10 is first put on.
  • FIG. 8 also shows that the container 53 is provided with an external thread 61, in which an internal thread 63 of the metal closure cap of the screw closure 10 can engage.
  • the internal thread 63 can be produced, for example, by a rolling process.
  • a stop bead 65 is provided below the external thread 61, under which the tabs 11 and 13 can snap in when the screw cap 10 is fully placed on the container 53.
  • the tabs Due to the fact that the tabs are flexibly connected to the guarantee ring, this remains intact when the closure is put on for the first time.
  • the ramp-like stiffening webs on the surface of the tabs ensure that when the tabs are deflected against the inside of the closure, the predetermined breaking line is loaded very little and therefore remains intact. Due to the ramp-like configuration and the thickness of the barbs given in the end region of the tabs, the tabs can slide very difficultly between the inner surface of the closure and the outer surface of the container when first opened. In addition, the tabs can be prevented from folding back by the contact areas 45, which make it impossible to pivot the tabs back too far. This ensures that the tabs spring back securely under the stop bead 65 on the container and cannot slide along the outside of the container even when the closure is first opened.
  • the tabs hook like a barb under the bead on the container and do not participate in an upward movement of the closure when it is screwed on. For this reason, tearing forces act in the vertical direction, which the tear-off webs 7 in the region of the predetermined breaking line 29 burst open.
  • the retaining webs 5 are, however, so wide and thus of a fixed design that damage to these areas is not possible.
  • the resilient tabs on the one hand compensate for differences in tolerance between the inside diameter of the closure and the outside diameter of the bottles, and on the other hand there is also a widening of the diameter of the guarantee ring, so that the breaking line 29 in the area of the tabs 11 and 13 is torn open.
  • only one ring segment is provided with tabs 11 and 13. These are preferably provided in the thread run-out area, that is to say in the area in which particularly high vertically directed forces arise. As a result, the tear-off webs in the area of the predetermined breaking line are opened with a high degree of certainty.
  • the top of the tabs are provided with stiffening webs or with a stiffening ramp, which prevent the tabs from being compressed and thus ensure that the bursting forces introduced into the tabs are transmitted.
  • the deformation regions 47 explained in FIG. 7 additionally prevent the tabs from being folded down when the closure is first opened and the opening forces not being converted into an explosion of the predetermined breaking line.
  • the ring segments become so from the tabs 11 and 13 noted that they can only follow an upward movement of the closure in the area of their holding webs, while there is a maximum downward deflection approximately in the middle between two holding webs.
  • the wall areas of the ring segments which directly adjoin the holding webs are strongly deformed. These areas are therefore defined as deformation areas.
  • the material of the plastic guarantee ring 9 is selected so that the deformation areas are irreversibly deformed when the closure is first opened. As a result, attempts to push or bend the ring segments back into their original position fail.
  • each ring segment it is possible for each ring segment to have only one deformation region near an associated retaining web.
  • the closures are preferably designed such that deformation regions are provided at both ends of a ring segment, so that the deformed segment after the first opening of the closure is held in its spread position.
  • a locking device can be provided on the inner surface of the closure or of the support ring, which engages in the tabs when the ring segment region is spread apart. In this way, bending back of the segment areas can additionally be avoided.
  • a depression 23 is made in the area of the holding webs 5 in the outer wall of the guarantee ring 9.
  • These grooves in the outer surface of the closure can be used to pick up the closure with a picking device and to keep it oriented in such a way that the position of the retaining webs is known for further processing operations.
  • only a limited area of the outer wall can be provided with a predetermined breaking line by such an oriented detection of the closure. If a circumferential predetermined breaking line is desired, which is introduced by a horizontal cut extending over 360 °, the depressions 23 can also be dispensed with.
  • such depressions could also be provided on the inside of the closure if it is to be gripped in an oriented manner.
  • the deformation regions provided at the end of the respective ring segments can additionally be provided with material deformation sections 27, which are introduced, for example, by circular stamping dies, as is shown in FIGS. 2 and 3 has been explained. It is also possible to provide one or more grooves running side by side in the material deformation sections, which are likewise made by an embossing or cold forming process. Such treatment of the deformation areas results in material hardening, which leads to the fact that when the closure is opened for the first time, the deformation areas are deformed more irreversibly. This is because the material is stretched here, which is further intensified by the pretreatment.
  • a prestressing of the guarantee ring can be set, which additionally leads to the guarantee ring being opened in one after the first opening of the closure spread position persists.
  • the tabs 11 and 13 serving as abutments are designed to be particularly stable. They therefore have the stiffening webs 15 or ramps 17 described. In addition, they are very stably connected to the guarantee ring 9 via the deformation regions 47 shown by way of example in FIG. 7, so that high forces can be introduced into the guarantee ring.
  • the guarantee ring 9 remains intact along its circumferential surface even when it is opened for the first time and that only the predetermined breaking line tears open in a defined area and enables a ring segment to be deflected or spread downward.
  • the ring segments are held in the spread-apart position by the deformation regions, so that manipulations on the container can be reliably recognized by the consumer. Because the guarantee ring remains intact in the horizontal direction, no burrs or edges can arise that could lead to injury to the consumer. On the other hand, closures designed in this way or combinations of a carrying and guarantee ring can easily be automatically further processed in a later recycling process.
  • Hoppers used for sorting can work without incident, because the closures cannot get caught there due to the missing burrs and edges - which are provided on the vertical incisions of conventional guarantee rings. It is therefore, for example easily possible to automatically sort and align the all-plastic closures so that the sealing insert can be removed automatically.
  • the tolerance ranges that is, the maximum dimensional deviations between the external thread of the container to be closed and the inner diameter of the closure that occurs when the closure is fitted, are chosen very closely can be. Also in the case where the inside diameter of the closure is somewhat smaller than the outer diameter of the container, the predetermined breaking line is loaded so little that the closure can be put on without damage.
  • the ring segment areas spread downward in the axial direction are very easily recognizable.
  • the optical detection of manipulations can, however, be further improved in that the outer surface of the closure is colored in the area of the ring segments to be spread. A solid colored line is then interrupted by the broken line.
  • the top of the tabs present in this area can shine through the predetermined breaking line. If, for example, the jacket area of the closure is red here, for example a white surface of the tabs can be clearly seen. Conversely, a red upper side of the tabs can also be detected very easily in the case of a white closure, for example, when a predetermined breaking line is blown open. Color differences between the outer surface of the closure and the top of the tabs can make manipulations on the closure more clearly visible to a consumer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
EP93101774A 1992-03-13 1993-02-05 Schraubverschluss Ceased EP0560051A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4207996 1992-03-13
DE4207996A DE4207996C2 (de) 1992-03-13 1992-03-13 Schraubverschluß

Publications (1)

Publication Number Publication Date
EP0560051A1 true EP0560051A1 (de) 1993-09-15

Family

ID=6453958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93101774A Ceased EP0560051A1 (de) 1992-03-13 1993-02-05 Schraubverschluss

Country Status (13)

Country Link
EP (1) EP0560051A1 (fi)
JP (1) JPH07504385A (fi)
CN (1) CN1078955A (fi)
BR (1) BR9306077A (fi)
CA (1) CA2131800A1 (fi)
DE (1) DE4207996C2 (fi)
FI (1) FI931129A (fi)
HU (1) HUT69119A (fi)
IL (1) IL105021A0 (fi)
MX (1) MX9301382A (fi)
NO (1) NO930523L (fi)
WO (1) WO1993017927A1 (fi)
ZA (1) ZA931818B (fi)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2715635A1 (fr) * 1994-02-02 1995-08-04 Rical Sa Capsule de bouchage en matière plastique moulée pour la fermeture de récipients à goulot.
WO1997017262A2 (de) * 1995-11-10 1997-05-15 INNOCOS INNOVATIVE VERPACKUNGEN FüR DIE KOSMETISCHE INDUSTRIE GMBH Originalitätsverschluss
ES2125142A1 (es) * 1995-07-13 1999-02-16 Rical Sa Capsula de taponado hecha de materia plastica moldeada para el cierre de recipientes con gollete.
WO2000040473A1 (en) * 1999-01-04 2000-07-13 Crown Cork & Seal Technologies Corporation Tamper-evident closure having improved drainage
US6702133B1 (en) 2000-10-12 2004-03-09 Crown Cork & Seal Technologies Corporation Plastic retorable container system having a closure with an improved conformable liner

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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DE4317269C1 (de) * 1993-05-24 1994-08-11 Innocos Gmbh Originalitäts-Sicherungsvorrichtung für Behälterverschlüsse
WO1999063857A1 (en) 1998-06-09 1999-12-16 Rabatic Miso Tooth-brush with container for tooth-paste
DE10146817A1 (de) 2001-09-20 2003-04-17 Alcoa Deutschland Gmbh Schraubverschluss
DE102009044643A1 (de) 2009-11-24 2011-05-26 Kunststofftechnik Waidhofen An Der Thaya Gmbh Verschlusskappe mit Garantiering sowie Spritzgießwerkzeug und Verfahren zu deren Herstellung
GB201307027D0 (en) * 2013-04-18 2013-05-29 Obrist Closures Switzerland Improvements in or relating to tamper evident closures
KR102448387B1 (ko) 2018-12-03 2022-09-28 구글 엘엘씨 스마트 디바이스들의 효율적인 제어 및/또는 연결

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FR2499519A1 (fr) * 1981-02-11 1982-08-13 Grussen Jean Capsule de bouchage a vis avec anneau d'inviolabilite
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FR2499519A1 (fr) * 1981-02-11 1982-08-13 Grussen Jean Capsule de bouchage a vis avec anneau d'inviolabilite
DE8709690U1 (de) * 1987-07-14 1987-12-10 Barein, Norbert, 4050 Mönchengladbach Garantieverschluß
WO1992003349A1 (en) * 1990-08-27 1992-03-05 H-C Industries, Inc. Preferentially strengthened tamper-indicating plastic closure

Cited By (7)

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FR2715635A1 (fr) * 1994-02-02 1995-08-04 Rical Sa Capsule de bouchage en matière plastique moulée pour la fermeture de récipients à goulot.
US5657889A (en) * 1994-02-02 1997-08-19 Rical (Societe Anonyme) Closure cap made of moulded plastics material for closing necked containers
ES2125142A1 (es) * 1995-07-13 1999-02-16 Rical Sa Capsula de taponado hecha de materia plastica moldeada para el cierre de recipientes con gollete.
WO1997017262A2 (de) * 1995-11-10 1997-05-15 INNOCOS INNOVATIVE VERPACKUNGEN FüR DIE KOSMETISCHE INDUSTRIE GMBH Originalitätsverschluss
WO1997017262A3 (de) * 1995-11-10 1997-06-19 Innocos Gmbh Originalitätsverschluss
WO2000040473A1 (en) * 1999-01-04 2000-07-13 Crown Cork & Seal Technologies Corporation Tamper-evident closure having improved drainage
US6702133B1 (en) 2000-10-12 2004-03-09 Crown Cork & Seal Technologies Corporation Plastic retorable container system having a closure with an improved conformable liner

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WO1993017927A1 (de) 1993-09-16
JPH07504385A (ja) 1995-05-18
ZA931818B (en) 1993-10-11
CN1078955A (zh) 1993-12-01
IL105021A0 (en) 1993-07-08
MX9301382A (es) 1994-08-31
CA2131800A1 (en) 1993-09-16
HUT69119A (en) 1995-08-28
NO930523L (no) 1993-09-14
BR9306077A (pt) 1997-11-18
DE4207996C2 (de) 1995-03-09
HU9402611D0 (en) 1994-11-28
DE4207996A1 (de) 1993-09-16
FI931129A (fi) 1993-09-14
NO930523D0 (no) 1993-02-15
FI931129A0 (fi) 1993-03-12

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