WO2021018775A1 - Système de fermeture à vis imperdable - Google Patents

Système de fermeture à vis imperdable Download PDF

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Publication number
WO2021018775A1
WO2021018775A1 PCT/EP2020/070968 EP2020070968W WO2021018775A1 WO 2021018775 A1 WO2021018775 A1 WO 2021018775A1 EP 2020070968 W EP2020070968 W EP 2020070968W WO 2021018775 A1 WO2021018775 A1 WO 2021018775A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw cap
separating web
retaining straps
cap
projection
Prior art date
Application number
PCT/EP2020/070968
Other languages
German (de)
English (en)
Inventor
Günter Krautkrämer
Original Assignee
Bericap Gmbh & Co. Kg
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
Priority claimed from PCT/EP2019/080338 external-priority patent/WO2020099200A1/fr
Priority claimed from PCT/EP2019/081236 external-priority patent/WO2020099516A1/fr
Priority claimed from DE202020100758.0U external-priority patent/DE202020100758U1/de
Priority claimed from DE102020107184.1A external-priority patent/DE102020107184A1/de
Application filed by Bericap Gmbh & Co. Kg filed Critical Bericap Gmbh & Co. Kg
Publication of WO2021018775A1 publication Critical patent/WO2021018775A1/fr

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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
    • 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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/16—Devices preventing loss of removable closure members
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/10—Details of hinged closures
    • B65D2251/1008—Means for locking the closure in open position
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/30—Tamper-ring remaining connected to closure after initial removal

Definitions

  • the present invention relates to a captive closure with the features of the preamble of claim 1.
  • Such a closure consists of a screw cap and a cylindrical extension which includes a tamper-evident band.
  • the tamper-evident band as part of the cylindrical extension can be locked via locking elements on a container neck, specifically on the so-called "Pilferproofring" of the container neck, the screw cap having at least one cylindrical cap shell with an internal thread, and the cylindrical extension partly along easily tearable tear lines with the lower edge of the Cap jacket is connected.
  • the guarantee strip locked on the container neck is permanently connected to the cap shell of the screw cap via at least one or more retaining straps.
  • the permanent connection of the guarantee band with the screw cap is intended to ensure that a user does not throw away the cap after emptying the container in question, but that when the container, for example a beverage bottle, is returned, the closure is returned to the recycling system via a deposit system together with the container becomes.
  • top “bottom” and “(radially) outside” or “inside” are used as they result from the arrangement and orientation in the closed state on the neck of an upright bottle.
  • the actual alignment and orientation of individual elements of the screw cap can, however, change if the cap is folded over after the closure has been opened.
  • a lower surface pointing downwards in the closed state is still referred to as a “lower surface” if it points upwards in the open state due to the screw cap being folded over.
  • the cylindrical cap shell, its internal thread and the cylindrical extension define a common closure axis in the closed state.
  • the material consumption for producing the closure should also remain low.
  • the invention also relates to the combination of such a closure with a suitable container or container neck.
  • All containers preferably plastic containers, which have an approximately cylindrical container neck with a matching external thread, onto which the screw cap with its internal thread can be screwed, come into consideration as containers.
  • beverage bottles come into consideration here as a container.
  • the present invention is based on a variant of the stabilization of a large opening angle of the screw cap unscrewed from a container neck, which has not yet been described and which is folded over after loosening the thread engagement so that the axis of the screw cap or the screw cap thread initially coincides with the axis of the container neck is folded over by more than 120 °, preferably by more than 140 ° and for example up to close to 160 ° relative to the axis of the container neck.
  • the axis of the tamper-evident band still coincides with the axis of the container neck.
  • the screw cap according to the invention remains in this wide open position after opening and folding over, regardless of movements and the orientation of the container.
  • the retaining straps are formed by two tear lines of the cylindrical extension interrupted in the circumferential direction by at least one separating web, which at least there where they partially overlap one another in the circumferential direction, run at an axial distance from one another, and which alternately bridge the separating web of the other tear line in the circumferential direction, wherein the upper separating web interrupting the upper tear line forms a permanent axial extension of the cap shell, and the upper separating web on its Outside, at a distance from its free lower edge, has a radially outwardly pointing projection, the projection after unscrewing the screw cap, the associated tearing of the lines of weakness and after folding the screw bkappe about a pivot axis, which runs parallel to a tangent to the lower edge of the separating web, assumes an axial position with respect to the axis of the guarantee strip, which is
  • the screw cap can be folded over in relation to a tamper-evident band which is fixed in the starting position and which consists of the stationary part of the cylindrical extension (which remains fixed on the pilferproof ring of a container neck during use) and the projection of the upper separating web in move a position between 0.1 and 0.8 mm above the engagement surface of the locking element or elements.
  • the axial distance between the latching elements and the projection on the separating web of the folded screw cap can be limited to 0.1 to 0.5, in particular 0.1 to 0.3 mm
  • the retaining straps When the closure is opened, the retaining straps come under tensile stress which is essential for the function of the closure according to the invention and which is influenced by various parameters, as will be explained below.
  • the screw cap thread is loosened or unscrewed
  • the screw cap is removed from the thread of the container neck and, during the rotation, axially from the part of the cylindrical extension which forms the guarantee strip, in accordance with the thread pitch.
  • the tear lines via which the guarantee strip and screw cap were connected, tear open, so that the retaining straps are formed between the overlapping sections of the two tear lines that separate.
  • the upper separating web is also separated from the section of the guarantee strip that remains underneath and is moved axially upwards with the screw cap.
  • the upper separating web then forms a short axial extension of the cap shell in the area where the upper tear line is interrupted by the separating web.
  • the lower separating web forms part of the tamper-evident band and defines an upper edge of the same.
  • the retaining straps set in the circumferential direction, which, at least when the tear lines are formed along parallel and at a fixed axial distance and running in the circumferential direction, exactly have the axial width that is also measured in the axial direction Corresponds to the height of the upper and lower dividers.
  • the lower edge of the cap shell is axially toho ben in the unscrewed state of the screw cap together with the upper separating web from the stationary remaining tamper-evident band, the extent of this axial displacement through the thread pitch and the pressure angle of the screw cap thread to be measured in the circumferential direction with the container neck is determined.
  • the lower separating web remains with a circumferential lower section of the cylindrical extension as a guarantee strip on the container neck. Latching elements on the inside of the guarantee band engage behind a pilferproof ring on the container neck and secure the guarantee band on the container neck
  • the screw cap In this position, in which the screw cap is initially still on the container neck, but is no longer in thread engagement with the container neck, the screw cap can be lifted on the side opposite the upper separating web and folded over towards the side of the upper separating bar.
  • the upper separating web is offset axially upwards by the amount of the thread height compared to the lower separating web and the guarantee band.
  • a pivot axis for a flipping or pivoting movement of the screw cap is defined by the lower edge of the upper separating web or an axis running parallel to a circumferential rod through the upper separating web, initially where the separating web engages with the outside of the container neck occurs.
  • the retaining straps each of which has one end connected to the lower separator and the other end to the upper separator, are twisted when the screw cap is folded over.
  • the upper separating web forms a partially cylindrical extension of the screw cap. If this is folded over together with the separator, the ends of the separator move radially outwards in relation to the axis of the guarantee strip (which corresponds to the original closure axis) and thus stretch the retaining straps.
  • the straps are already put under tension due to their twisting and the relative axial displacement of their ends. This tension is increased when the cap is folded down.
  • the retaining straps therefore exert a tensile force in the direction of the bottle neck on the screw cap while it is being folded over and then afterwards.
  • the ends of the lower and upper separators connected by the straps take on a maximum distance from each other during the folding and axial displacement of the screw cap, which also causes a maximum in the tension of the straps. After crossing an intermediate position, which can be at a flip angle of about 130 °, this distance decreases again, especially when the retaining straps and separators are then approximately at the same axial height as they are in the case of an unopened closure .
  • the flipping movement of the screw cap thus takes place over a dead point, the screw cap has the tendency to move back into the closed position due to the tensile force of the straps before reaching the dead point, while it has a tendency to move into the next after exceeding the dead center to move the open position.
  • the screw cap can be pressed axially downwards on the container neck while it is being folded over, so that the separating web, which is initially moved upwards with the screw cap, does not slide up along the container neck or remains in the position loosened from the thread above a pilferproof ring. Instead, during or after the flap of the cap, the separating web or its then possibly inwardly pointing protrusion slides downwards on the upper flank of the pilfer proof ring, passes the outer edge of the pilfer proof ring and finally engages the lower flank of a pilfer proof ring or is below it Pilfer proof ring pressed.
  • the projection which in the meantime points axially downwards at a folding angle of about 90 °, could be moved past the outer edge of a pilferproof ring and then only pivot radially inward immediately below the pilferproof ring when the screw cap was pivoted further .
  • the projection lies in a predominantly radially inward position at an axial height between the locking elements and the upper edge of the tamper-evident band.
  • “Axial” refers to the axis of the tamper-evident band, which maintains the orientation of the closure axis as it existed before the screw cap was folded over.
  • the upper edge of the tamper-evident band is defined by the lower separating web and, with a closure, which is attached to a container neck, lies at the level of the pilferproof ring and thus above the locking elements of the guarantee strip, which in turn lie below the pilfer proof ring.
  • the latter have a slight play in relation to the lower flank of the pilferproof ring in order to facilitate the application of the closure to a bottle neck.
  • the projection Since the projection is to engage behind the pilferproof ring of the container neck after the screw cap has been folded down and after moving downwards along the outside of a bottle neck, the projection or its lower engagement surface is accordingly located axially between the locking elements and the upper edge of the tamper-evident band.
  • the projection can assume this position even in the isolated state if it is not attached to a bottle neck, in which case the projection would, however, have no function.
  • the upper separating web and the retaining straps are not regarded as part of the guarantee band in this context, since they are connected to the guarantee band, but are also movable with respect to this.
  • the projection is essentially slightly above the axial height of the locking elements of the guarantee band, which are also below the pilferproof ring and, in the event of an axial upward movement of the guarantee band, engage the lower flank of the pilferproof ring.
  • the tension in the straps should remain in the elastic range even during a folding process, and is otherwise determined by the twist and the length of the straps and the length of the upper separating web in the circumferential direction.
  • the ends of the upper separating web which, viewed in the circumferential direction, are connected by the two retaining straps to the ends of the lower separating web, therefore essentially occupy the same axial area as in the closed state and are simply folded over and the retaining straps twisted accordingly.
  • the projection is located slightly above the axial level of the locking elements, as it engages behind the pilferproof ring, while the guarantee strip with the locking elements drops slightly after the tear lines have been separated.
  • the elongation and tension in the straps in the twisted state is less in this position than with an additional axial displacement of the separators relative to one another.
  • the axial position of the two separators in the same axial area causes a minimal stretch of the straps in the folded position, while folding back the screw cap from this position in the direction of the closed position causes an axial lifting of the ends of the upper separator, which causes an expansion in the Retaining straps, albeit slightly, would enlarge.
  • the folded position is therefore stable.
  • the lower surface of the projection is at a distance from the free lower edge of the separating web which is less than 50%, preferably less than 30% of the axial height of the separating web.
  • the wide open position is also stabilized in that the projection, more precisely its lower surface, which engages with the lower flank of the pilferproof ring, is closer to the lower edge of the separating web than to its upper edge, which is connected to the jacket of the Screw cap is rigidly connected.
  • the pivot axis which is formed by the contact point between the separator and pilferproof ring, is close to the lower edge of the separator, while the tensile force of the retaining straps is distributed over the height of the separator and is thus predominantly below the pivot axis in the folded-over state, so that a Torque acts in the direction of the open position.
  • the lower surface of the projection extends in a plane at an angle of at least 70 °, preferably about 90 °, relative to the outer (teilzylindri rule) surface of the separating web
  • the straps can be in one embodiment in the circumferential direction, for example over a Win angle range of less than 90 °, preferably less than 80 °, z. B. extend over only 70 ° or 60 °.
  • the axial length of the screw cap thread more precisely that part of the screw cap thread which actually engages with a container neck thread, is at most 6 mm, because less long retaining straps are then required.
  • the retaining straps start with one of their ends in the circumferential direction at each end of the upper separating web and are connected at their other end in the circumferential direction to one of the ends of the lower separating web, which is part of the circumferential, stationary on the container neck tamper evident band forms. Shorter straps allow a greater length of the lower separator, which makes the guarantee strap more stable.
  • the axial height of the dividing web of the upper tear line is defined by the distance between the lower edge of the cap shell outside this separating web and the (intact) lower tear line at the ends of the separating web.
  • the upper separating web has exactly the same axial height as the lower separating web, since it is separated along the lower tear line, while the upper tear line interrupted at the upper separating web defines the transition to the cap shell.
  • the width of the retaining straps measured in the axial direction is accordingly equal to the axial height of the two separating webs.
  • this cross section of the retaining straps is between 2 x 0.5 mm 2 and 3 x 0.8 mm 2 , the larger number defining the width to be measured in the axial direction and the smaller number defining the radial thickness of the retaining straps .
  • One embodiment of the invention is characterized by a radial thickness of the retaining straps which is greater in its upper area adjoining the upper tear line or the edge of the cap jacket than in the area adjoining the lower tear line. This leads to the fact that the radially thicker area of the retaining straps opposes a somewhat greater resistance to stretching by folding over and twisting than in the cross-sectional area adjoining the lower line of weakness. In the folded-over state of the screw cap with the twisted retaining straps, the radially thicker area of the retaining straps is accordingly attached to the upper separating web near the edge of the cap shell, while the slightly weaker section of the retaining straps with a smaller wall thickness starts near the free axial end of the upper separating web.
  • the upper separating web can have a recess on its lower edge, as is shown and described, for example, in DE 10 2018 128 886.
  • the lower edge of the upper separating web which rests against the bottle neck mainly in its central area when the screw cap is folded down, is then designed to be axially recessed.
  • the central area of the edge has the recess or is designed to be set back, while the axial height of the separating web can be maintained near the ends of the separating web, it may be easier to place the separating web with the recessed edge formed in the recess under the To move the pilferproof ring and hook it there.
  • a projection could be provided directly at the level of such an edge of the recess.
  • the invention also relates to a combination of a container and one of the closure variants described here, the container having a container neck with an external thread which fits the internal thread of the screw cap and the lower free surface of the projection on the upper separating web after unscrewing and folding the Screw cap is immediately below a pilferproof ring of the container neck and is in engagement with the lower flank.
  • This lower flank of the pilferproof ring extends preferably vertically, but at least at an angle> 70 degrees to the axis of the container neck
  • the projection can be locked with its lower surface (which is on top after folding down the screw cap) under the pilferproof ring.
  • the guarantee band is designed as a flex band
  • the radial thickness of the inner section of a flex band that engages the lower radial flank of the pilfer proof ring is less than the radial protrusion of the pilfer proof ring over the bottle neck in this area.
  • the lower surface of the projection can, in addition to the inner section of the flex tape, snap into place on the lower flank of the pilferproof ring.
  • An alternative embodiment which enables the lower edge of the separating web to latch under the pilferproof ring would be an interruption of the inner section of a corresponding flex strip in the circumferential direction and over the length of the separating web.
  • the relative axial position of the projection between the locking elements and the upper edge of the tamper-evident band is less critical and it is particularly important that the separating web on the The screw cap can snap into place under the pilferproof ring without the position relative to the upper edge of the guarantee strip playing a role.
  • the distance between the bottom of a pilfer proof ring and the top of a support ring on the bottle neck is somewhat larger than the distance between the lower edge of the tamper-evident band and the engagement surface of the locking elements of the guarantee band, which comes into contact with the underside of the pilferproof ring when the closure is opened.
  • the space between the underside of the pilferproof ring and the upper side of a support ring located underneath it on the bottle neck usually accommodates the guarantee band of the closure with little play.
  • the small play is to ensure that the guarantee band cannot be detached without visible damage to the guarantee band or the tear lines. If, however, the closure is applied to a corresponding container neck, the lower edge of the guarantee band must not touch the support ring before the locking elements have passed the outside of the pilferproof ring and engage under the pilferproof ring.
  • a corresponding play of the locking elements is provided underneath the underside of the pilferproof ring, which was defined by the aforementioned difference in the distances between pilferproof ring and support ring compared to the distance between the lower edge of the guarantee strip and the engagement surface of the locking element.
  • the tamper-evident band can slip off the bottle neck after the partial separation from the screw cap and be supported on the support ring below the pilferproof ring, so that the space immediately below the pilferproof ring for engagement by the projection of the separating web from the locking elements is definitely free is given.
  • the guarantee strip is a flex strip, the inner section of which has a radial thickness that is smaller than the radial protrusion of the lower flank of the pilferproof ring over the outer diameter of the bottle neck. This ensures that locking elements lying relatively just below the pilferproof ring do not hinder the engagement of the projection below the pilferproof ring.
  • the guarantee strip can be designed as a flexible strip, in which the inner section of the flexible strip is interrupted in the circumferential direction over the length of the upper separating web. This, too, ensures that the projection engages when Due to the dimensions of the pilferproof ring, the locking elements would block the space below the pilferproof ring in such a way that the projection according to the invention would not be able to intervene.
  • the distance between the underside of a pilferproof ring and the top of a support ring on the bottle neck is greater than the distance between the lower edge of the guarantee band and the engagement surface of the locking elements of the guarantee band. This ensures that the closure is securely applied to a container neck.
  • Figure 1 schematically shows a perspective external view of an inventive
  • FIG. 2 shows a side view of the screw cap according to FIG. 1,
  • FIG. 3 shows a development of the cylindrical extension of the screw cap of
  • FIGS. 4a-c schematically the opening process in a closure according to the invention
  • FIG. 5 is a perspective view of an opened closure attached to a container neck
  • FIG. 6 is a partially perspective and partially sectioned side view of the
  • FIG. 7 shows a sectional view of the closure according to FIGS. 5 and 6 and
  • FIG. 8 is an enlarged perspective view of the closure according to FIG. 5, partly in section.
  • the closure according to the invention consists of a screw cap 10 with a cylindrical extension
  • the screw cap 10 consists essentially of a cap shell 2 and a head plate 1, which closes the cylindrical cap penmantel 2 at the top.
  • the cylindri cal extension starts, of which a stationary part forms a tamper-evident band 3, which cannot be completely separated from the screw cap 10 in the closure according to the invention and remains stationary on the container neck 20.
  • Usual screw caps with a tamper-evident band have only a single tear line which, unlike the tear lines 13 and 14 shown here, runs without interruption along the entire circumference of the screw cap 10 and represents the dividing line between the screw cap 10 and the tamper-evident band 3.
  • a tear line can generally be a circumferential, uniform material weakening, which can be produced, for example, during injection molding through a small wall thickness or through an incision that does not completely penetrate the material of the guarantee strip 3 or the transition to the cap shell 2, or it can be an incision running in the circumferential direction, the wall thickness of the guarantee strip 3 completely penetrating incision, but which is interrupted at individual points by easily breakable bridges.
  • the present invention differs from this usual form of screw caps with a tamper-evident band, among other things, in that it has two tear lines 13, 14, which on the one hand are spaced apart in the axial direction and on the other hand do not extend over the entire circumference of the tamper-evident band, but through an upper separating web 11 of the upper tear line 13 and a lower separating web 12 of the lower tear line 14 are interrupted.
  • FIG. 2 a side view of the closure from FIG. 1 can be seen and FIG. 3 shows a development of the cylindrical extension over 360 °, ie. H. the ends of the cylindrical extension, shown on the right and left at 0 ° and 360 °, abut one another and hang together, so that the cylindrical extension has an overall ring shape.
  • the development view divides the separating web 12 into two parts, although it is actually a single, contiguous separating web 12.
  • the representation in the figures is primarily of a schematic nature, even if the specific lengths and arrangements of the tear lines are essentially reproduced realistically.
  • the cylindrical extension consists of the guarantee band 3 as well as the retaining bands 15, 16 and the upper separating web 11, which are not part of the guarantee band 3.
  • the guarantee band 3 is a so-called flex band with an outer section 3a visible in the figures and an inner section 3b, that is, folded inwards and upwards, which engages with the lower flank of a pilferproof ring on a container neck, around the guarantee band 3 to hold on to this.
  • the lower separating web 12 effectively forms part of the outer tamper-evident band section 3a.
  • it also defines an upper edge 12k of the guarantee strip.
  • the tear lines 13, 14 are of different lengths, but are arranged in such a way that they overlap the separating web 11 or 12 of the respective other tear line. It is useful here if the center points of the separating webs 1 1, 12 are diametrically opposite one another, as in the present case at 0 ° and 180 ° in FIG.
  • the retaining straps 15, 16 formed in the overlap area of the two tear lines form an essentially tear-resistant connection between the separating webs 11 12.
  • the separating web 11 is connected to the lower edge of the screw cap and the separating web 12 is firmly connected to the part of the guarantee strip 3 that remains in its original position and is located below the tear line 14. This prevents the screw cap from being removed or torn off a container neck.
  • the separating webs 12 and 11 are each connected to one another by the remaining retaining straps 15, 16, which are produced by the overlapping sections of the two tear lines 13, 14. Since the upper separating web is a limited axial extension of the cap shell and is firmly connected to it, the screw cap 10 is effectively connected to the lower section of the guarantee band and thus to the container or bottle neck via the retaining straps 15, 16 and therefore cannot be lost.
  • Captive in this context means that the screw cap could possibly be torn off the container neck by applying greater forces than are applied in everyday use by an average user when using packaging bottles.
  • FIG. 4A a closure arranged on a bottle neck can be seen in a partially unscrewed state.
  • the connection between the screw cap 10 and the guarantee strip 3 is separated along the two tear lines 13, 14.
  • both tear lines are interrupted and axially offset from one another at least in their overlapping area, a movable connection between screw cap 10 and guarantee strip 3 remains via the retaining straps 15, 16 generated between the overlapping tear lines. It is therefore understood that when the closure or the screw cap 10 is loosened by a rotary movement in the opening direction with the cap shell 2, the guarantee strip 3 also rotates about the closure axis 50, which is carried along by the retaining straps 15, 16 in the circumferential direction.
  • the screw cap according to FIG. 4A As soon as the screw cap according to FIG. 4A has been unscrewed sufficiently far from the thread of the bottle neck, the screw cap can be removed or tilted away to the side, as shown in FIGS. 4B and 4C.
  • the tilt or flip angle is defined as the angle between the axis 50 of the container neck and the axis 50 ‘of the cylindrical internal thread of the cap penmantels 2, which coincide in the closed state of the closure on the bottle neck.
  • the axis 50 ' starting from the closed position, has been pivoted by approx. 150 ° with respect to the axis 50 (position approximately as in FIG. 5).
  • the separating web 11 represents a relatively stable, axial extension of the cap casing 2. By pivoting the screw cap according to FIGS. 4B, 4C, 5, 6, and 7, this separating web 11 is also in the form of a tab-like Extension of the cap shell 2 pivoted or folded over together with this.
  • the projection 11e can be seen, which distinguishes the closure according to the invention from other captive closures and which was not yet recognizable in the representations of FIGS. 1 to 4 because of the rough scale.
  • This radial projection 11e on the outside of the upper separating web 11 extends radially outward at a distance from the lower edge 11a of the separating web 11.
  • the projection 11e engages behind the pilferproof ring 23 of a bottle neck 20 from its underside.
  • the screw cap 10 could, however, if its axis 50 'is approximately perpendicular to the axis 50 of the container and the tamper-evident band, with the lower edge 11 a of the Trennste tot 1 on the outside of the bottle neck 20 are pushed down.
  • the edge 11 a then slides down on the upper flank of the pilferproof ring 23 to the outer edge of the pilferproof ring and the cap can then be tilted even further, so that the lower surface of the projection 11 e, which is then on top, snaps into place under the pilferproof ring 23 when the screw cap is further folded over, while the section of the separating web 1 1 between the lower edge 11 a and the underside of the projection 11 e to the circumferential surface of the Pilferproofringes 23 applies.
  • the radially outwardly directed projection 1 1 e which fulfills its function to stabilize the open position of the screw cap only in the area of the separating web 11, optionally extend around the entire circumference of the cylindrical extension, ie also over the retaining straps and the lower separating web 12 away, even if it no longer has any special function in this area, apart from a possibly stabilizing effect on the guarantee strip.
  • the inner latching elements 3b of the flex tape 3 do not extend all the way to the underside of the pilferproof ring 23.
  • the straps and separator are roughly in the same axial area in which they were also when the lock was closed, ie the separator 11 is only slightly displaced in the axial direction compared to the separator 12, whereby the elongation of the straps 15, 16 in the Becomes minimal compared to other axial positions.
  • FIG. 7 in an enlarged representation compared to FIG. 6, the engagement of the protrusion 11e with the pilferproof ring 23 can be seen in a section containing the axis of the closure.
  • the lower surface of the projection 11e extends approximately perpendicular to the axis 50 ‘of the screw cap 10, while the lower surface of the Pilferproofrin ges also extends approximately perpendicular, at least at an angle of 70 °, relative to the axis 50 of the bottle neck.
  • the relatively large angle between the surfaces and axes mentioned prevents, among other things, the surfaces from slipping from one another.
  • the retaining straps 15, 16 exert a certain tensile stress on the ends of the separating web 11, the separating web 11, as already mentioned, rests with its lower section 11 d on the outside of the pilferproof ring and thus effectively a tangential to the Separating web 11 and in the fold area of the section 11 d and the projection 11e ver forms a running axis. Since the tensile force exerted by the retaining straps 15, 16 according to FIGS. 5 - 8 mainly applies below this pivot axis, the retaining straps 15, 16 effectively pull the closure cap 10 into the illustrated open position, which can only be achieved by the cap shell 2 striking against a support ring 25 of the Bottleneck is limited.

Landscapes

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

Abstract

L'invention concerne un système de fermeture comprenant un capuchon à vis (10) et un prolongement cylindrique (9), qui comprend une bande d'inviolabilité (3) qui peut être encliquetée par l'intermédiaire d'éléments d'encliquetage sur le col d'un récipient, le capuchon à vis (10) présentant au moins une jupe (2) cylindrique à filetage femelle (4), ledit prolongement cylindrique (9) étant relié au bord inférieur de la jupe (2), en partie le long de lignes de déchirure (13, 14) aisées à arracher, et la bande d'inviolabilité (3) demeurant reliée de manière non détachable à la jupe (2) par l'intermédiaire de bandes de retenue (15, 16), après arrachement le long des lignes de déchirure. Selon l'invention, les bandes de retenue (15, 16) sont réalisées par deux lignes de déchirure (13, 14) du prolongement cylindrique, interrompues dans la direction périphérique dans chaque cas par au moins un élément jointif de séparation, lesquelles s'étendent à distance axiale l'une de l'autre, au moins là où elles se chevauchent au moins en partie dans la direction périphérique et recouvrent en alternance l'élément jointif de séparation (11, 12) dans chaque cas de l'autre ligne de déchirure (14, périphérique) dans la direction périphérique, l'élément jointif de séparation supérieur (11) qui interrompt la ligne de déchirure supérieure (13) formant un prolongement axial permanent de la jupe (2) et présentant sur sa face extérieure à distance de son arête inférieure libre une partie saillante (11e) dirigée vers l'extérieur dans le sens radial, la partie saillante (11e) adoptant, rapportée à l'axe de la bande d'inviolabilité, une position axiale relativement à l'axe de la bande d'inviolabilité se situant à une distance d'au moins 0,1 à 0,8 mm au-dessus des éléments d'encliquetage, après dévissage dcapuchon à vis, après déchirure connexe des lignes d'affaiblissement (13, 14) et après un rabattement du capuchon à vis autour d'un axe de pivotement, lequel s'étend parallèlement à une tangente sur l'arête inférieure (11 a) de l'élément jointif de séparation (11).
PCT/EP2020/070968 2019-07-31 2020-07-24 Système de fermeture à vis imperdable WO2021018775A1 (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
DE102019120725.8 2019-07-31
DE102019120725 2019-07-31
PCT/EP2019/080338 WO2020099200A1 (fr) 2018-11-16 2019-11-06 Dispositif de fermeture imperdable présentant un angle d'ouverture stabilisé
EPPCT/EP2019/080338 2019-11-06
EPPCT/EP2019/081236 2019-11-13
PCT/EP2019/081236 WO2020099516A1 (fr) 2018-11-16 2019-11-13 Dispositif de fermeture relié
DE202020100758.0U DE202020100758U1 (de) 2019-07-31 2020-02-12 Unverlierbarer Verschluss mit stabilisiertem Öffnungswinkel
DE202020100758.0 2020-02-12
DE102020104703.7 2020-02-21
DE102020104703 2020-02-21
DE102020107184.1 2020-03-16
DE102020107184.1A DE102020107184A1 (de) 2019-11-06 2020-03-16 Unverlierbarer Schraubverschluss

Publications (1)

Publication Number Publication Date
WO2021018775A1 true WO2021018775A1 (fr) 2021-02-04

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PCT/EP2020/070968 WO2021018775A1 (fr) 2019-07-31 2020-07-24 Système de fermeture à vis imperdable

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022234172A1 (fr) * 2021-05-04 2022-11-10 Jose Francisco Gonzalez Sanchez Bouchon de fermeture pour récipients
TWI807437B (zh) * 2021-09-30 2023-07-01 宏全國際股份有限公司 切割連結蓋

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009002057A2 (fr) * 2007-06-22 2008-12-31 Si Joong Kwon Contenant pourvu d'un bouchon anti-perte et anti-rotation
US20120285921A1 (en) * 2010-01-25 2012-11-15 Si-Joong Kwon Container for preventing loss of stopper and idle rotation thereof
JP2014031202A (ja) * 2012-08-03 2014-02-20 Nippon Closures Co Ltd 合成樹脂製容器蓋
DE202020100758U1 (de) 2019-07-31 2020-03-26 Bericap Gmbh & Co Kg Unverlierbarer Verschluss mit stabilisiertem Öffnungswinkel
DE102018128886A1 (de) 2018-11-16 2020-07-02 Bericap Gmbh & Co. Kg Unverlierbarer Verschluss

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009002057A2 (fr) * 2007-06-22 2008-12-31 Si Joong Kwon Contenant pourvu d'un bouchon anti-perte et anti-rotation
US20120285921A1 (en) * 2010-01-25 2012-11-15 Si-Joong Kwon Container for preventing loss of stopper and idle rotation thereof
JP2014031202A (ja) * 2012-08-03 2014-02-20 Nippon Closures Co Ltd 合成樹脂製容器蓋
DE102018128886A1 (de) 2018-11-16 2020-07-02 Bericap Gmbh & Co. Kg Unverlierbarer Verschluss
DE202020100758U1 (de) 2019-07-31 2020-03-26 Bericap Gmbh & Co Kg Unverlierbarer Verschluss mit stabilisiertem Öffnungswinkel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022234172A1 (fr) * 2021-05-04 2022-11-10 Jose Francisco Gonzalez Sanchez Bouchon de fermeture pour récipients
ES2927995A1 (es) * 2021-05-04 2022-11-14 Sanchez Jose Francisco Gonzalez Tapón de cierre para envases
TWI807437B (zh) * 2021-09-30 2023-07-01 宏全國際股份有限公司 切割連結蓋

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