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
  • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
  • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
• • 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 present invention relates to a screw cap with guarantee strip, wherein the closure has a top plate, an at least approximately cylindrical cap jacket with internal thread and the connected via an easily tearable connection with the lower edge of the cap skirt guarantee band, which is designed as a flex band, which consists of a consists of the cap skirt downwardly directed first portion and a subsequent to the lower end of the first portion second portion, which is folded inwards and back towards the top plate, for engaging behind a retaining ring on a container neck, wherein in the axial extension of the second portion at least one extension is provided, which attaches substantially to the outer free edge of the inwardly folded second portion and leaves the inner edge of the second portion free, wherein the along the inner circumference of the screw cap extending second Section has at least one recess.
• Such closures with a guarantee band designed as a flex band work in such a way that the second portion of the flex band folded inwards and upwards relatively easily and generally more easily slides over a securing ring on the container neck when the closure is placed or screwed onto a container neck this is the case with conventional guarantee tapes, which differ from the flex tapes in question in that they lack the second section of a flex band and instead the first section has a radially inwardly projecting, nose-shaped projection which under widening of this first section must slide over the locking ring to then engage with a substantially horizontal or slightly inclined and upwardly facing projection surface of the nose-shaped projection with the underside of the locking ring.
• extensions or extensions of the second section provided, which rest in a fully applied to a bottle neck closure from the outside to the peripheral surface of the locking ring, wherein the extensions radially are provided so far outside at the free ends of the folded second portion, that radially inwardly therefrom, a large part of the engagement surface at the free end of the second portion is still in engagement with the lower surface of the locking ring.
• the second section lies securely against the securing ring along the entire closure circumference and is thus held fast by the securing ring during unscrewing of the closure the breakable bridges or the easily rupturable connection between the cap coat and guarantee strip tears or rupture and thus the guarantee strip stuck under the circlip, so that after the first opening of the closure is always recognizable that the closure has been opened once.
• the inner portion of the flexible strip is present only in the form of a large number of separate, segment-like projections, which are separated from one another by an opening or a recess and each individually by a hinge-like connection with are connected to the continuous circumferential first portion of the flex band.
• Each of the segments of the second portion of the flex band carries on its upper side a small extension which is located near the outer edge of the (folded) upper surface of the second portion and thus engaging the top of the second portion with the underside of a corresponding one Circlip on the bottleneck does not bother, but at the same time rests against the outside of the retaining ring and keeps the lock centered evenly.
• these individual segments especially in their lower portion, where they taper significantly and merge into the hinged portion at the transition to the first section, only a slight inherent rigidity and are easy to deform in this area. This may possibly lead to the fact that the individual segments, especially if the closure is loaded on one side only when unscrewing, "unroll” over its lower transition to the first section, ie that the hinge portion which the inwardly folded inner second portion of the outer section separates into the second section. pushes so that it unfolds from the pointing in the direction of the top plate position down and flaps so that it is directed from the lower edge of the first section substantially downwards.
• the individual segments extend over a much larger circumferential angle and also the openings between the individual segments do not extend in this case over the entire height of the second section, but essentially only over the upper half up to the upper two-thirds of the (folded) second portion, while the second portion forms a circumferential, closed ring in its lower, adjacent to the hinge portion area.
• the individual segments at their free upper ends on axial extensions, which (in the folded state of the second portion) attach to the radially outer edge and the rest in the same manner on the outside of the retaining ring of a container neck rests when the shutter completely is based on this.
• the extensions provide for a corresponding centering, but without affecting the engagement of the upper surface of the second portion with the underside of the retaining ring.
• the present invention seeks to provide a closure with guarantee strip with the features mentioned, which, although still has the advantage of ease of applicability, but at the same time to an increased functional reliability has that he the rolling over the lower hinge area opposes a greater resistance, so that it is practically impossible to solve the closure under everting the second portion of the guarantee strip.
• extension extends in the circumferential direction over a possible recess in the second portion away.
• one extension extends simultaneously over a plurality of recesses, or one extension extends over at least one recess.
• the recesses may extend down to or into the hinge at the transition to the first section and / or in the other direction to the axially free (upper) end of the second section, where they then from the extension or be bridged the extensions.
• the recesses are formed as apertures of the second portion, i. they extend in the radial direction completely through the second portion of the flex band and thus form a real interruption of the second portion in this area. It is understood, however, that the recesses need not necessarily pass through the second portion completely, but could also be provided in the form of a significantly reduced wall thickness, which improves the mobility of the segments on both sides of such a recess and relative to each other and thus the applicability of the closure improved to a corresponding bottleneck. Likewise, the recesses may also extend over only a part of the axial height of the second section and, for example, have a certain distance both to the hinge area at the transition to the first section and to the upper engagement surface of the second section.
• the recesses extend substantially over the entire axial height of the second portion, and then on the upper side of the folded second portion of the flex band of a projection or of the extensions be bridged.
• the projections starting from their free upper end, where they are radially slightly thicker, downwardly, ie continuously tapers in the direction of its connection point with the second portion, radially.
• the second section of the flex band itself may have a similar shape in cross section. - -
• the second portion optionally also the respective extensions, in cross section in approximately the shape of an acute triangle with downwardly pointing and capped tip and the extensions are placed on the upper side of the second portion, that the extension only at the radial outer edge of the surface of the second section attaches.
• the radial thickness of the second portion in particular in the region of the connection between the second portion and extension, significantly greater than the radial thickness of the extension, thereby ensuring that the extension or the extensions when they rest on the outside of the retaining ring but still leave the top of the second section free for overlapping engagement with the bottom of the circlip.
• the extension can also have a substantially arbitrary other cross-sectional shape (eg rectangular), as long as it only fulfills its main function, namely the stabilization of the second section, and does not interfere with the engagement of the upper side of the second section with the underside of the retaining ring.
• a substantially arbitrary other cross-sectional shape eg rectangular
• the projections are just arranged so that they overlap the recesses or apertures, they give the second portion a greater rigidity, which effectively prevents unrolling of the second portion, especially when the projections rest on the outside of the retaining ring.
• the extensions are dimensioned in their radial thickness so that they substantially fill the remaining between the first portion or the lower edge of the cap skirt and the outer peripheral surface of the retaining ring annular gap.
• the second portion is oriented substantially axially parallel, which in turn gives it a better rigidity and a higher resistance to unrolling when it engages the underside of the locking ring during a screw-off operation of the closure.
• the number of openings of the second section is limited to a maximum of twelve, better yet to a maximum of ten or eight and in particular to six.
• the breakthroughs have, inter alia, the purpose that, in the case of aseptic closures, cleaning fluids into which the closures are immersed prior to application to the respective containers can better drain from the closure. Also, any residual moisture that may still be present between the closure and the container neck (outside the seals) after the closure has been applied to a container neck can evaporate better due to corresponding recesses or openings.
• the apertures extend substantially over the entire axial height of the second portion (without the extensions), ie, extend from the lower hinge portion to approximately the upper face opposite the underside of the retaining ring .
• additional extensions are provided in this embodiment, which rest after the application of a corresponding closure on the outside of a retaining ring and ensure a secure centering and largely axial alignment of the second portion.
• the extensions are arranged over the openings, but rather they can be distributed in segments over the upper edge of the second section, without having to pay attention to what circumferential position these extensions are present.
• these extensions should nevertheless be segmented and arranged above the openings in order to improve the stability of the second section in the desired manner without, on the other hand, applying the closure to the container neck and, in particular, passing the guarantee band over the securing ring to complicate.
• the recesses or cutouts extend in the lower region of the second section into the vicinity of the transition or hinge section, which connects the second section to the first section of the flexible strip.
• the flex band more specifically the upper end of the first section of the flex band, is connected to the bottom edge of the cap skirt via easily breakable bridges.
• These bridges are formed, for example, in the form of several, distributed over the circumference, narrow webs, which are very short axially and otherwise hold the flex band at a short, uniform distance below the lower edge of the cap skirt.
• the closure could also have a tear line at this location, i. a closed, circumferential, film-like connection, which can be generated by appropriate weakening of the wall material between the lower edge of the cap mantels and upper edge of the guarantee strip and tears at a corresponding load.
• the invention should also include embodiments in which the tamper-evident band does not tear off completely from the cap jacket, but is fixedly connected to the cap shell at one or more circumferential positions, but also easily rupturable connections to the latter between these fixed connection points
• Cap jacket exist and the flex band is optionally formed so that it also has one or more transversely, ie, substantially in the axial direction, extending through the flex band separation points, which cause the flex band at the occurring during unscrewing stress at least a circumferential position tears apart , so that even a first-time opening of the closure remains permanently visible.
• FIG. 2 again shows a diametrical section through a closure cap applied to a bottle neck
• FIG. 3 shows the rectangular cutout from the lower region of FIG. 1 marked D in FIG
• closure cap which consists essentially of a top plate 1 in the form of a circular disc with an attached to the outer circumference cap casing 2, which in turn has an internal thread 11. Further inside extending from the top plate 1 down some sealing elements 15, but which are not further described at this point of importance and therefore only in summary.
• circumferential guarantee band 3 which is in the form of a flex band and, accordingly, a first section 4 extending substantially vertically in the extension of the cap skirt 2 and one at the lower end of the first section 4 via a type of bending hinge 6 articulated second section 5 consists of the inside and the top, ie back towards the top plate, folded down.
• This second, inner portion 5 of the flexible strip 3 has at its axially free end or on the upper surface 12 in addition to extensions 7, which, as can be seen in particular at the left and right edges of Figure 1, only at the radially outer upper Edge of the second section 5 set and thus the upper side 12 of the second portion 5, which is substantially horizontal, ie perpendicular to the axis 30 of the closure, runs, leaves free in its radially inner region.
• top and bottom are used in the present description, these always refer to the orientation of the closure, as shown in Figure 1, and in which the top plate 1 is located at the top on the second portion 5 of the flex belt 3 always the folded state, as shown in Figure 1 and in the other figures, is described in this orientation.
• the second section 5 extends in the opposite direction (downwards), that is to say essentially in the axial extension of the first section 4, and only folded over after the production into the state shown in the figures is, with this folding on the one hand by the relatively thin, almost film-like hinge region 6 and on the other is facilitated by the openings or recesses 9 which are distributed over the circumference of the second section 5.
• the flex band 3, more precisely its first section 4, is connected via easily breakable bridges 8 to the lower edge of the cap skirt 2.
• a plurality of openings 9 are provided along the circumference of the second portion of the flexible strip 5, wherein the total number of openings 9 in the illustrated embodiment is six, but this is not mandatory, since the number of openings 9 as well as well could be significantly larger or smaller.
• an excessively large number of apertures 9 is less preferred because the apertures 9 affect the second portion 5 and thus its rigidity and strength, which is to be improved by the present invention and which is required for the proper functioning of the Flexbandes.
• FIG. 2 shows the closure 10 in a state applied to a bottle neck 20.
• the closure 10 is screwed onto the bottle neck 20 or, in certain embodiments and depending on the specific configuration of the thread 11, simply pressed axially.
• the second section 5 of the flexible band and in particular its upper, nose-shaped projecting part must be moved past the securing ring 21 of the bottle neck.
• the upper side of the circlip 21 is formed as a ramp, and the lower part of the flex belt 3 has a rounded inner edge due to the folding back of the second portion 5 to the bending hinge 6, wherein the radially inner surface of the second portion 5 is a downward forms widening conical ramp surface, which allows a uniform, gradual expansion of the flex band 3 and in particular the second portion 5 thereof.
• This elongation is necessary because the second section 5 of the flexible strip 3 in the unstretched state has a significantly smaller (minimum) diameter than the securing ring 21.
• the second section 5 consequently becomes pressed the first portion 4, and the nose-shaped projection on the upper edge of the second portion 5 can also be slightly compressed until the second portion 5 is slid past the area of the locking ring 21 with maximum outside diameter and then elastically spring back and the lower edge of the retaining ring 21st engages behind. Due to the large distance of the easily breakable bridges 8 of the second portion 5 of the flexible band 3, the easily tearable connecting elements 8 between the first portion 4 and the cap casing 2 are hardly loaded during this Hinwegg bankss the second portion 5 via the retaining ring 21.
• the lower retaining ring 23 at the bottleneck serves essentially to simplify the mechanical handling of the bottle in the filled and also in the unfilled state and during the production process, but also has the effect that the lower edge of the closure cap and in particular of the flexible band 3 is poorly accessible , so that manipulation of the closure by expanding and lifting away the Flexbandes 3 via the retaining ring 21 can be largely excluded.
• extensions 7 which, as seen in Figure 2, are dimensioned so that they do not slide over the securing ring 21 even in the fully applied to a bottle neck 20 closure 10, but rather abut on the outer peripheral surface.
• These extensions 7 thus hold the second portion 5 of the flex band in an erect, nearly paraxial and centered state (as far as can be said due to the shape of the second portion 5) and prevent the second portion 5 from tilting radially inwardly into a conical state and thereby could be easily unrolled over the hinge area 6.
• FIG 3 the designated in Figure 1 with D, rectangular section is shown enlarged again.
• Flexband 3 which is connected via easily breakable connection bridges 8 with the cap skirt 2 and consists of the first section 4 and the second, folded and visible in front of the section 4 section 5.
• the hinge region 6 is indicated at the lower edge of Figure 3 by a somewhat thicker black line.
• the second section 5 has an opening 9, wherein along the circumference of the flexible strip 3 more of these openings 9 are provided, so that the second section 5 of the flexible strip is effectively divided into several segments.
• extensions 7 are provided at the upper outer edge of the second portion 5, which are just arranged so that they bridge an opening 9 respectively.
• extensions 7 are also present only in the form of individual segments, since this segment-like design of the extensions 7 is completely sufficient for the purpose for which they are intended.
• an extension 7 bridges an opening 9, so that the two segment sections of the second section 5, which are separated from each other by the opening 9, extend over the extension 7 be joined together again and thereby have an overall higher rigidity and resistance to deformation.
• the basic mode of operation of a flexible band 3 with extensions 7 is again and better understood with reference to the enlarged detail C shown in FIG. 2.
• the first section is contained in a section containing the axis 30 of the closure 10 and the bottle neck 20 4 of the flexible strip 3 and the second section 5 of the flexible strip 3, which consists of several, each separated by an opening 9 segments 5.
• the cross-section of the section 2 corresponds substantially to the shape of a right-angled acute-angled triangle with a bottom, capped tip, which merges into the hinge region 6.
• One of the nearly right-angled triangles extends vertically and parallel to the inner wall of the first section 4, while the second side is substantially horizontal and defines the upper surface 12 of the second section 5, which is the lower, also nearly horizontal, surface 22 of the locking ring 21 opposite and engaged in unscrewing the closure with this.
• the present invention also includes a variant, not shown, which can be imagined starting from Figure 3 so that the opening 9 ends before reaching the upper surface 12 and the upper edge of the second section 5, so that the second section 5 in the area the breakthrough 9 is not completely separated, but the two right and left of the opening 9 recognizable segments would still be interconnected by a along the surface 12 extending web, so that the upper surface 12 would be an annular circumferential, closed flat surface.
• the extensions 7 could be arranged both in the position shown and at positions in which they do not bridge the opening 9, since this is now bridged by webs, take over a similar connection function between the segments of the second section 5, as in the previously described embodiment has been done by the extensions 7. However, the webs would not extend over the full radial thickness of the second section 5. However, in this case as well, it is preferable for the extensions to extend beyond the apertures in order to further improve the stability of the flex band.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=39797918

Family Applications (1)

Country Status (7)

Families Citing this family (20)

Citations (2)

Family Cites Families (18)

• 2007
  • 2007-08-30 DE DE102007041365.5A patent/DE102007041365B4/de not_active Expired - Fee Related
• 2008
  • 2008-08-12 EP EP08787151A patent/EP2185437A1/de not_active Withdrawn
  • 2008-08-12 RU RU2010111845/12A patent/RU2466071C2/ru not_active IP Right Cessation
  • 2008-08-12 CN CN2008801051751A patent/CN101878165B/zh not_active Expired - Fee Related
  • 2008-08-12 WO PCT/EP2008/060600 patent/WO2009027227A1/de active Application Filing
  • 2008-08-12 BR BRPI0816069-4A2A patent/BRPI0816069A2/pt not_active Application Discontinuation
  • 2008-08-12 US US12/675,260 patent/US8231018B2/en not_active Expired - Fee Related

Patent Citations (2)

Non-Patent Citations (1)

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