EP1429973B1 - Schraubverschluss - Google Patents

Schraubverschluss Download PDF

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Publication number
EP1429973B1
EP1429973B1 EP02776933A EP02776933A EP1429973B1 EP 1429973 B1 EP1429973 B1 EP 1429973B1 EP 02776933 A EP02776933 A EP 02776933A EP 02776933 A EP02776933 A EP 02776933A EP 1429973 B1 EP1429973 B1 EP 1429973B1
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EP
European Patent Office
Prior art keywords
screw cap
cap according
region
zone
anyone
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.)
Expired - Lifetime
Application number
EP02776933A
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German (de)
English (en)
French (fr)
Other versions
EP1429973A1 (de
Inventor
Wolfhard Schwarz
Engelbert Eisele
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
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Filing date
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Publication of EP1429973A1 publication Critical patent/EP1429973A1/de
Application granted granted Critical
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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
    • 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
    • B65D2401/25—Non-metallic tear-off strips

Definitions

  • the invention relates to a screw cap for containers, in particular for bottles, according to the preamble of claim 1.
  • Screw caps of the type discussed here are known. They have either an internal thread, which meshes with an external thread of a container or a bayonet closure. In both cases it is crucial that the screw closure for opening experiences a certain rotational movement and in particular an axial transverse movement, by which the closure is lifted off the container or its mouth. It is known to provide such screw caps with a security band, also referred to as a guarantee band, which is partially deformed or destroyed during the first opening, ie during the first removal of the screw cap from the container, so that its outer contour is changed.
  • a security band also referred to as a guarantee band
  • the guarantee strip is connected to the screw cap via a predetermined breaking line circulating in the circumferential direction and has a parting line running perpendicular thereto.
  • the rupture line is torn open in areas and the dividing line is blown open ( EP-A-0 652 958 .
  • the object of the invention is therefore to provide a screw cap of the type mentioned here, which does not have these disadvantages.
  • a screw cap which has the features mentioned in claim 1. It comprises a bottom, from which a circumferential jacket extends, which is provided on its inside with a holding device for fixing the screw cap on the container.
  • a holding device for fixing the screw cap on the container This can, as stated above, be designed as a thread or optionally as a bayonet lock.
  • the screw cap is provided with an internal thread, which cooperates with an external thread on the container.
  • the screw cap also has a securing band, which is arranged on the side facing away from the bottom edge of the shell and is connected via a predetermined breaking line with the screw cap.
  • the securing band has at least one expansion zone whose elongation behavior differs significantly from that of the remaining securing band: the securing band is yielding in the region of the expansion zone, in particular transversely to its longitudinal extent, ie transversely to the circumferential direction, so that a higher Flexibility results.
  • the security band is characterized by a closed structure, that is, it is formed in intact condition as a closed band, so that the screw cap at the first
  • the closed band is characterized in spite of the expansion zone by a high stability, so that the security band remains intact when first closing a container with maximum security and disturbances in the closing process are practically impossible.
  • the expansion zone is characterized in that it conveys the extensibility to the securing band, which acts particularly perpendicular to the circumferential direction of the screw cap, ie perpendicular to the longitudinal extent of the securing band, ie in the direction of the height of the securing band.
  • a screw cap which is characterized in that the expansion zone is offset relative to the predetermined breaking line in the circumferential direction.
  • the expansion zone is offset relative to the predetermined breaking line in the circumferential direction.
  • screw cap which has a plurality of expansion zones in the region of the securing band. This makes it possible to influence the elasticity of the security band so targeted that the opening and reclosing forces are easily adjustable to a desired low value.
  • a cut is made in the area of the securing band, namely an expansion cut which serves as an expansion zone.
  • an expansion cut which serves as an expansion zone.
  • the region of the cut which may be formed intermittently, which penetrates the thickness of the securing band entirely or only parts thereof, results in a higher elasticity or extensibility of the securing band, so that the expansion zone can be realized in a simple manner.
  • the predetermined breaking line is not formed completely circumferentially in the circumferential direction. It can thus be realized as a holding web designated holding area, which holds the security tape in the desired position.
  • the screw cap which is characterized in that provided in the region of the securing band, ie between the predetermined breaking line and the edge of the securing tape facing away from the bottom of the screw, at least one weakening zone is, which is preferably substantially vertical. It is also conceivable that it is arranged at an angle relative to the vertical. It is essential that the securing band in the region of the weakened zone has a reduced strength which allows deformation and, if appropriate, tearing of the securing band in the area of the weakened zone during the first opening.
  • the screw cap wherein the weakening zone weakening areas, which are arranged offset in the circumferential direction against each other. Between the two weakened areas results in a connecting web whose strength can be determined by the length of the weakened areas and by the width of the offset. In this way, the strength can be specified in the weakening zone without any special effort.
  • the screw cap described below is characterized in that it is lifted off the container mouth at the first opening, so performs a transverse movement in addition to the rotational movement.
  • a Verhakungs is provided which cooperates with an abutment on the container to be closed.
  • a force is exerted on the securing band, which on the one hand acts parallel to the transverse movement, on the other hand causes a radial widening of the securing band.
  • the first embodiment of a screw cap 1 has a bottom 3, which spans the mouth of the container to be closed and from which a circumferential casing 5 extends, so that Overall, a cap-shaped cup-shaped screw 1 is formed.
  • a cap-shaped cup-shaped screw 1 is formed on the outside of the jacket 5, as shown here, vertically, that is, parallel to the center or axis of rotation 7 of the screw cap 1 extending ribs are provided, which increase the grip of the screw cap 1.
  • a backup tape 11 is provided, which is connected to the jacket 5 via a predetermined breaking line 13. This is designed so that the securing band 11 is partially detached from the jacket 5 during the first opening.
  • a weakened area is formed in the wall of the screw cap, ie in the area between casing 5 and securing strip 11, or a cutting line is introduced which cuts through the wall over the entire thickness or penetrates only a portion of the thickness of the securing strip 11. If the cut extends over the entire thickness of the securing band 11, a row of webs 15 (see FIGS. 2 and 3) is generally provided on the inside of the jacket 5, which remain substantially intact when the cut is introduced and the predetermined breaking line 13 or span the cut. When first opened, these webs 15 are torn off, so that the predetermined breaking line 13 opens.
  • the predetermined breaking line 13 can extend over the entire circumference of the screw cap 1. Preferably, however, it extends over a smaller peripheral region of, for example, about 240 °. It is also conceivable to provide a plurality of separate predetermined breaking lines 13, which then each extend over a smaller portion of the circumference.
  • a strain zone 17, preferably approximately parallel to the predetermined breaking line 13, is provided below the predetermined breaking line 13 within the securing strip 11, in the region of which the extensibility of the securing strip 11 is substantially greater than in the adjacent area. If-seen in the circumferential direction-a plurality of predetermined breaking lines are provided, it is preferable to assign at least one expansion zone 17 to each predetermined breaking line.
  • the expansion zone 17 is preferably realized by a line-shaped softer or weakened region of the securing band 11, preferably by a stretch cut. This can be formed as a continuous or intermittent cut, which is composed by individual cutting lines. The depth of the cut is chosen so that it extends either only through a portion or through the entire thickness of the securing band 11, wherein then a connecting bridge is provided, which spans the cut and is torn when first opened.
  • the expansion zone 17 is characterized in that, viewed in the circumferential direction, it extends at least over a certain portion of the screw cap 1.
  • a force is applied to the expansion zone 17 so that it widens substantially transversely to its longitudinal extent.
  • the expansion direction of the expansion zone therefore runs essentially transversely to the longitudinal extent or circumferential direction of the securing band 11, that is to say in the direction of the height of the securing band 11, that is to say in the direction of the axis of rotation 7.
  • the expansion zone 17 is substantially horizontal and thus practically parallel to the predetermined breaking line 13 and / or to the edge facing away from the edge 19 of the securing tape 11. It is also conceivable that the expansion zone 17 follows an imaginary helix.
  • FIG. 1 shows that the screw closure is provided with a weakening zone 21, which here comprises a first weakening region 23 which is arranged between the predetermined breaking line 13 and the expansion zone 17, and a second weakening region 25 which is provided between the expansion zone 17 and the edge 19 is.
  • a weakening zone 21 which here comprises a first weakening region 23 which is arranged between the predetermined breaking line 13 and the expansion zone 17, and a second weakening region 25 which is provided between the expansion zone 17 and the edge 19 is.
  • the weakening zone 21 is characterized in that it has a lower strength than is the case in the remaining areas of the securing tape 11. This can therefore stretch or preferably tear during the first opening in the region of the weakening zone 21.
  • the weakening zone 21 extends substantially vertically, ie parallel to the axis of rotation 7. However, it can also be more or less inclined with respect to this. It is divided in the embodiment shown here, as I said, in two weakening areas. They are seen in the circumferential direction something offset, so do not form a continuous vertical weakening area. This is not mandatory. Optionally, therefore, only a single continuous weakening range can be provided.
  • the weakening zone 21 can thus by several vertical weakening areas or be realized by a continuous weakening range.
  • the weakening zone 21 can be realized as a line-shaped weakening region, that is to say through a thin-walled region, or preferably by means of a weakening cut or weakening cuts which correspond to the weakening regions 23 and 25.
  • the cuts can pass through the thickness of the securing band 11 or only over a partial depth. It is also conceivable to provide interrupted intermittent cuts. It is also possible to provide a continuous cut which is spanned by a bridge which is torn when the closure 1 is first opened.
  • two vertically offset weakening regions 23 and 25 are provided, between which a connecting web 27 remains, which connects the upper part of the securing band 11 and the lower part together.
  • the strength of the connecting web 27 can be set defines defined, so that the tearing behavior of the backup tape 11 in the first opening case. If in the region of the weakening zone 21 two mutually aligned mutually merge weakening regions 23 and 25 are provided, the strength in the region of the weakening zone 21 can be determined by the depth of the cut with respect to the thickness of the securing band 11 or by an intermittent cut having at least one bridging web become.
  • the securing band 11 has two regions between the predetermined breaking line 13 and the lower edge 19, namely an upper band region 28a and a lower band region 28b.
  • the expansion zone 17 lies between these areas.
  • FIG. 2 shows the screw closure 1 shown in FIG. 1 in cross section.
  • the same parts are provided with the same reference numerals, so that reference is made to the description of Figure 1.
  • Figure 2 shows that the predetermined breaking line 13 does not completely rotate, but only over a range of about 240 °.
  • the edge 9 of the screw cap 1 is not weakened or cut, so there is no predetermined breaking line 13.
  • the jacket 5 is firmly connected to the securing band 11, namely with its upper band portion 28a ,
  • the sectional view according to FIG. 3 shows that the expansion zone 17 is likewise not formed circumferentially. In the embodiment shown here, it extends over a circumferential angle of approximately 125 °.
  • a retaining web 29 is formed in that here the securing band 11 has no predetermined breaking line 13 and no expansion zone 17.
  • the securing band 11 is attached directly to the edge 9 of the jacket 5 of the screw cap 1 or formed integrally therewith.
  • the retaining web 29 preferably extends over a range of approximately 12 ° to 18 °, in particular of approximately 15 °.
  • the retaining web 29 extends to the lower band portion 28 a, so that this is connected to the jacket 5 here.
  • the predetermined breaking line 13 and the expansion zone 17 which is axially spaced, ie seen in the direction of the axis of rotation 7, exists.
  • the predetermined breaking line 13 and the expansion zone 17 are at a distance from each other, which corresponds to the height of the upper band portion 28a.
  • the intact regions of the screw cap 1, which form the retaining web 29, and the overlap region 31, can be defined in their measured width in the circumferential direction by appropriate selection of the circumferential length of the predetermined breaking line 13 and the expansion zone 17.
  • the overlapping area 31 extends over a range of 30 ° to 36 °, preferably about 33 °, or in other words over a range of 1/10 to 1/12 of the circumference.
  • FIGS. 2 and 3 show the weakened zone 21, in particular the second weakened area 25.
  • Figure 4 shows the screw cap 1 on a container, here on a bottle 33. It can be clearly seen that the screw cap 1 was opened for the first time. Parts that correspond to those in the preceding figures are given the same reference numerals. In this respect, reference is made to the description of Figures 1 to 3.
  • the securing band 11 is torn open in the area of the weakened zone 21, ie in the first weakened area 23 and in the second weakened area 25, also in the region of the predetermined breaking line 13 and the expansion zone 17.
  • the securing strip 11 is here completely demolished by the jacket 5. It is connected only there to the edge 9 of the jacket 5, where no predetermined breaking line 13 is provided, that is, for example, in the region of the retaining web 29.
  • the expansion zone 17 gapes slightly because the securing tape 11 was deformed during the first opening.
  • the retaining web 29 can be seen, in which the lower part of the securing band 11, referred to as the lower band region 28b, ie the region below the expansion zone 17, with the upper region of the securing band 11 designated as the upper band region 28a and with this the edge 9 of the screw cap 1 is connected.
  • the region of the right edge of the expansion zone 17, which is formed by the upper overlapping region 31 (see FIG. 3) there is an elastic retaining band 35, which elastically connects the lower band region 28b of the securing band 11 with the upper band region 28a of the securing band 11 and finally with the jacket 5.
  • the elastic tether 35 holds the portion exploded in the region of the expansion zone 17 and the portion of the securing band 11 which has been released in the region of the predetermined breaking line 13 in a desired spread position, so that the forces required for reclosing are minimized and the securing band 11 is held in such a way that this when reclosing a container or the bottle 33 with the screw cap 1 does not bother.
  • the width of the holding web 29 seen in the circumferential direction is defined by the distance of the left end of the expansion zone 17 to the weakening zone 21.
  • the length of the elastic retaining strap 35 is defined, and by the distance measured in the vertical direction of the expansion zone 17 to the predetermined breaking line 13, the height of the elastic retaining strap 35 and thus its strength is determined so that the elasticity of Fuse bands 11.
  • FIG. 5 shows once again the screw cap 1 placed on a bottle 33.
  • the securing band 11 is bent approximately rectilinearly against its own elasticity, ie it no longer runs along a curved contour around the container 33.
  • This arrangement of the securing band 11 does not correspond to a regular functional position , It only serves to explain the structure of the screw cap 1.
  • the same parts are provided with the same reference numerals, so that reference is made to the description of the preceding figures.
  • the backup tape 11 thus has two band areas.
  • An upper band area 28a closes immediately to the predetermined breaking line 13.
  • a lower band portion 28b extends to the lower edge 19 of the securing band 11.
  • the overall height of the securing band 11 determines its strength.
  • the height of the upper band area 28a is about one third of the total height, in particular 0.3 to 0.33 of the total height.
  • At an overall height of about 4.2 mm of the backup tape 11 so the height of the upper band portion 28a is about 1.26 mm to about 1.4 mm.
  • the connection of the backup tape 11 on the jacket 5 of the screw cap 1 or at the edge 9 takes place on the one hand on the elastic tether 35 and the other on the holding web 29. Through these compounds and the spreading behavior of the backup tape 11 is a total and in the region of the expansion zone 17 at first opening of the screw cap 1, which is also determined by the material of the securing band 1.
  • the overall strength of the securing band 11 is reduced by the expansion zone 17 and by the weakening zone 21 and its elasticity is increased, so that the first opening of the screw cap 1 requires less force. Due to the length of the expansion zone 17, the elasticity of the securing band 11 can be influenced. In addition, held by the elastic tether 25 of the free-standing portion of the backup tape 11 in a spread position, so that a first opening and thus manipulations detected safely and the resealing forces are reduced and the backup tape 11 does not interfere with reclosing.
  • FIG. 6 shows a screw cap 1 in plan view, as has been explained with reference to FIGS. 1 to 5.
  • the same parts are provided with the same reference numerals, so that reference is made to the description of the preceding figures.
  • the screw cap 1 has already been opened, so that the securing band 11, as shown in Figure 4, is spread radially and the consumer can easily recognize it manipulation of the screw cap 1 and a first opening.
  • the security tape 11 is spread so far that it no longer bothers when reclosing a container.
  • the free end 37 can be supported on the lower edge 9 of the jacket 5 and is thus held securely in the spread position.
  • the securing band 11 is held securely in its spread position by the elastic region 39, which is formed by the lower band portion 28b of the securing band 11 between the holding web 29 and the elastic tether 35, so that it does not bother when re-closing and the For resealing required forces are significantly reduced.
  • the elasticity of the fixed, elastic region 39 is determined by the length of the expansion zone 17 and / or by the axial distance of the expansion zone 17 to the edge 19 of the securing band 11.
  • the securing band is therefore held very well in the spread position by the elastic region 39, because the elastic region 39 is supported at one end directly on the retaining web 29, ie is also connected directly to the jacket 5 of the screw cap 1.
  • the elastic holding strap 35 serves to hold the securing strap 11 in its more or less widely spread position, as can be seen from FIG.
  • the lower band portion 28b of the securing band 11, that is, the elastic portion 39 held at a distance to the upper band portion 28a, so that also by this axial spread manipulations and a first opening of the screw cap 1 for a consumer are easily recognizable.
  • the securing band 11 can, unlike in FIG. 6, also lie with its free end 37 somewhat within the outer boundary line of the screw cap 1. It is essential that it is held over its entire course at a radial distance to the jacket 5 of the screw cap 1, so that not shown here, on the inside of the backup tape 11 existing interlocking and locking devices, which are formed for example as barbs, a resealing of Do not disturb container so that the resealing forces are significantly reduced.
  • the locking devices can be compared to the predetermined breaking line 13 and in particular with respect to the expansion zone 17 aligned and arranged so that the securing band 11 is stabilized during the first application of the screw cap 1 and during the transport of the sealed container.
  • FIG. 6 shows that the elastic region 39 is therefore held at a radial distance from the jacket 5.
  • the distance of the rest of the backup tape 11 can by the Aufsp Son practice the elastic portion 39 and the holding forces of the elastic Tethers 35 are still slightly spread radially. It turns out that only in the region of the retaining web 29 on the inside of the securing band 11 provided hooks are in their original position.
  • the barbs on the inside of the elastic portion 39 and the inside of the rest Sich réellesbänds 11 are radially displaced to the outside, so that, as I said, the re-hooks when closing, that is screwing again, the screw cap 1-can not disturb and significantly reduces the resealing forces are.
  • FIG 7 shows a modified embodiment of the screw cap 1 ', similar to how he was explained with reference to Figures 1 to 6.
  • the same parts are provided with the same reference numerals, so that reference is made to the description of the preceding figures.
  • the screw cap 1 thus in turn has a bottom 3, from which a circumferential jacket 5 starts. At its edge 3 facing away from the bottom 9 a securing band 11 is attached, which is connected via a predetermined breaking line 13 with the edge 9 and has a strain zone 17.
  • a predetermined breaking line 13 does not have to be formed completely encircling and that, incidentally, also applies to the embodiment described above, several individual sections of a predetermined breaking line can be provided can.
  • a single expansion zone 17th or a plurality of expansion zones are provided, as will be explained in more detail with reference to FIGS. 8 and 9.
  • the essential difference between the exemplary embodiment of the screw cap 1 'shown in FIGS. 7 to 9 is that it does not have a weakening zone, which was identified by the reference numeral 21 in the exemplary embodiment described above.
  • the predetermined breaking line 13 extends in the embodiment shown here is substantially horizontal, as is the expansion zone 17.
  • the predetermined breaking line and the expansion zone can also extend at an angle to the horizontal or an imaginary helix can follow. It is essential that the predetermined breaking line 13 and the expansion zone 17 overlap in a region Ü, ie that an overlapping region 31 is formed, as was also explained with reference to FIG.
  • the length of the overlap in the region Ü which is indicated by a double arrow, can be selected within a wide range, as well as the measured in the direction of the axis of rotation 7 axial distance between the predetermined breaking line 13 and the expansion zone 17.
  • an elastic retaining strap is also here 35, which after the first opening of the screw cap 1 'connects an upper band area 28a of the securing band 11 to a lower band area 28b and which holds the lower band area 28b of the securing band 11 in a splayed position after the first opening, as described with reference to FIG is apparent.
  • the lower band area 28b the securing band 11 is then spread apart radially and arranged at a distance from the upper band area, moreover, the expansion zone 17 is held in a spread state, so that manipulations and a first opening are clearly visible.
  • a second expansion zone 17a can still be seen.
  • the first expansion zone 17 could also be so far circumferential that the expansion zone 17a forms its second end, that is, the end of the expansion zone 17 facing away from the overlapping region 31.
  • two expansion zones 17 will be apparent from FIG and 17a are present.
  • the right end of the expansion zone 17a does not overlap with the left end of the predetermined breaking line 13, so that here the lower band portion 28b of the securing band 11 is connected via its upper band portion 28a to the edge 9 of the jacket 5 of the screw cap 1 'and a holding web 29 is formed becomes.
  • the lower band region 28b which forms the elastic region 39, can be securely supported on the jacket 5 via the retaining web 29, so that the desired spreading forces are ensured.
  • the screw cap 1 ' is formed on the opposite side, ie on the side hidden in Figure 7 accordingly. That is, the expansion zone 17a has an overlap region 31 with a second predetermined breaking line 13a, which is not visible here, so that an elastic retaining band 35a is formed here as well. It can therefore be provided a plurality of circumferentially spaced expansion zones become. It is here - as well as in the first embodiment - possible to provide several distributed over the height of the securing band 11 expansion zones.
  • FIG. 8 shows the screw cap 1 'in cross-section along the line A-B shown in FIG. It can be seen here that the predetermined breaking line 13 visible in FIG. 7 extends over a circumferential region, which by way of example comprises approximately 100 ° here. On the opposite side of a point-symmetrical designed breaking line 13a is provided.
  • the predetermined breaking line 13, 13a of the overlap region 31, 31a is provided, which extends here, for example, about 30 °.
  • FIG. 8 it is shown that no overlapping of the predetermined breaking line 13, 13a with the expansion zone 17, 17a is provided over a range of approximately 10 °, so that the retaining web 29, 29a is formed.
  • FIG. 9 shows a cross section through the screw cap 1 'along the line C-D shown in FIG.
  • the expansion zones 17 and 17a each extend over a circumferential area of approximately 100 ° and are arranged symmetrically to each other.
  • the securing band 11 which is connected via a predetermined breaking line 13 to the edge 9 of the shell 5, provided with at least one expansion zone 17.
  • the predetermined breaking line 13 which is not completely circumferential is formed, partially overlaps the likewise not completely encircling expansion zone 17, so that at least one overlap region 31 is given.
  • the securing band 11 receives in this fixed, so not radially freely splayed area elasticity, which facilitates the resealing of a container.
  • an elastic holding strap 35 is formed, which holds the securing strap 11 after the first opening of the screw cap 1, 1 '.
  • the jacket 5 facing away from the elastic band 39 of the backup strip 11 is held in the spread position at an axial distance from the upper portion of the backup tape 11 by the elastic tether 35 in the region of the expansion zone 17.
  • the elastic strap 35 can hold a circumferentially blown-up securing band 11 at a radial distance from the jacket 5.
  • the securing band 11 is burst open in particular when a weakening zone 21 is provided, as was explained in the exemplary embodiment in FIGS. 1 to 6. But even without such a weakening zone, as explained with reference to the embodiment of Figures 7 to 9, and without a bursting of the backup tape 11, a secure display for manipulation and a first opening of the screw cap 1 is ensured by the expansion zone 17 in the security tape 11.
  • the securing band 11 is weakened by the expansion zone 17 in all embodiments so that the forces are reduced during the first opening by the additional elongation, also when reclosing.
  • the elastic region 39 is formed in the two screw caps 1 and 1 'in the lower band region 28b, which is not only axially spread but also in the radial direction, which was explained in more detail with reference to FIG.
  • barbs lying on the inner surface of the elastic region 39 are also displaced radially outward, so that they can not interfere with the resealing of a container. At least the forces when resealing are substantially reduced.
  • the basic principle of the additional expansion zone described here is realized with a single expansion zone 17. But it is also possible to provide several expansion zones seen in the circumferential direction and provided over the height of the backup tape 11, which was explained with reference to FIGS 7 to 9, but also applies to the screw cap 1. If over the height of the securing band 11 are provided a plurality of expansion zones 17, between these overlapping areas can also be provided, so that correspondingly more elastic straps arise. It is also possible for overlaps with the predetermined breaking line and / or with expansion zones to be provided at one or more expansion zones at both ends, so that elastic retaining straps are formed on both sides.
  • This configuration results in a particularly great extensibility of the securing band 11 in the direction of the axis of rotation of the screw cap 1 over the height of the securing band 11.
  • the support of an elastic region 39 described above is not so strong here; the spread can therefore, if the holding webs are not reinforced in this case, be reduced.
  • the horizontal regional support of the securing band 11 by one or in particular a plurality of expansion zones can also increase the elasticity in the radial and circumferential directions, as a result of which a first opening and a resealing are additionally facilitated.
  • the expansion zone 17, optionally 17a can be realized in any manner.
  • Conceivable is a linear material weakening.
  • a strain cut is provided here, which is introduced into the securing band 11.
  • the cut can penetrate both in the predetermined breaking line 13 and in the expansion zone 17 or 17 a, the entire thickness of the backup tape 11 or only parts thereof. Also conceivable are intermittent cuts, so lined up to each other cutting lines to realize the predetermined breaking line or strain zone.
  • the weakening zone 21 which may have one or more weakened areas. It should also be pointed out that, unlike the exemplary embodiment explained with reference to FIGS. 1 to 6, a plurality of such weakening zones 21 can also be realized.
  • the resulting from the first opening portions of the blown-up securing band 11 are then each formed analogously to the security band, which has been explained with reference to Figures 1 to 6. It is therefore necessary to adapt the number of expansion zones to the number of weakened zones in order to realize at least one retaining web and at least one elastic retaining band in each securing band region.
  • the retaining web 29, which cooperates with the elastic region 39 is of crucial importance.
  • the elastic region 39 can be supported virtually directly on the casing 5 of the screw cap 1 via the holding web 29, so that on the one hand the elastic region 39 is held in its axially and radially spread-apart position.
  • it can be ensured by the support of the elastic portion 39 on the holding web 29, that the remaining area of the securing tape 11 is held in a splayed position.
  • barbs are held on the inside of the securing strap 11 at a distance such that when resealing a container, the forces to be applied are greatly reduced.
  • the function of the retaining web 29 can also be seen in connection with the weakening zone 21:
  • the retaining web 29 holds the securing tape 11 in the region of the weakening zone 21 so firmly on the jacket 5 that the first opening of the screw cap 1, the weakening zone 21 is torn open with certainty or so is weakened that it is burst when first removing the screw cap 1.
  • the strength of the retaining web 29 is ensured by the fact that on the weakening zone 21 facing side of the retaining web 29, the horizontally extending predetermined breaking line 13, which spans the weakening zone 21, only in a very small area in the retaining web 29 extends.
  • the predetermined breaking line 13 protrudes into the retaining web 29 only so slightly that the area weakened by the predetermined breaking line 13 of the retaining web 19 is at most 1/60 of the circumference of the screw cap 1. If the predetermined breaking line 13 protrude further into the retaining web 29, the region of the retaining web 29 facing the weakening zone 21 could be bent downwards during the first opening of the screw cap 1, so that the weakened zone 21 is not burst open with certainty. For this reason, the area weakened by the weakening line 13 in the region of the retaining web 29 is limited to the above-mentioned value.
  • the expansion zone 17 extends slightly into the retaining web 29. This is thus weakened on the one hand by a small area of the predetermined breaking line 13 and on the other hand by a reaching into the retaining web 29 area of the expansion zone 17. It must be ensured that the predetermined breaking line 13 and the expansion zone 17 in the region of the retaining web 29 have such a large distance from one another that the retaining web 29 does not break off during the first opening.
  • the distance of the first weakening region 23 of the weakening zone 21 to the expansion zone 17 is 1/20 to 1/30 of the circumference of the screw cap 1.
  • the predetermined minimum residual width of the holding web 29 also ensures that the holding web 29 sufficient holding forces for the elastic region 39 can muster.
  • the screw caps 1, 1 ' are preferably made of plastic, in particular in the compression molding or injection molding process.
  • This embodiment is characterized in that the screw is then completely made of plastic and is integrally formed.
  • a security tape 11 made of plastic with a screw cap, the bottom and shell of a thermoformable material, in particular made of metal.
  • Aluminum has proven particularly suitable for screw caps of the type discussed here.
  • the securing band can be connected in a known manner to the edge of the jacket remote from the bottom and, as explained with reference to FIGS. 1 to 9, be formed. Even with such an embodiment, the advantages described here can be realized, if only the backup tape 11 made of - plastic.
  • the screw cap 1, 1 'described here is suitable for disposable and reusable containers of all kinds made of glass, PET and the like, in particular for bottles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP02776933A 2001-09-20 2002-08-20 Schraubverschluss Expired - Lifetime EP1429973B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10146817A DE10146817A1 (de) 2001-09-20 2001-09-20 Schraubverschluss
DE10146817 2001-09-20
PCT/EP2002/009287 WO2003026980A1 (de) 2001-09-20 2002-08-20 Schraubverschluss

Publications (2)

Publication Number Publication Date
EP1429973A1 EP1429973A1 (de) 2004-06-23
EP1429973B1 true EP1429973B1 (de) 2007-06-20

Family

ID=7699962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02776933A Expired - Lifetime EP1429973B1 (de) 2001-09-20 2002-08-20 Schraubverschluss

Country Status (16)

Country Link
US (1) US7712619B2 (es)
EP (1) EP1429973B1 (es)
CN (1) CN100542902C (es)
AR (1) AR036563A1 (es)
AT (1) ATE365134T1 (es)
BR (1) BR0212688B1 (es)
CO (1) CO5560600A2 (es)
DE (2) DE10146817A1 (es)
EC (1) ECSP045010A (es)
EG (1) EG24594A (es)
ES (1) ES2287320T3 (es)
MX (1) MXPA04002609A (es)
NO (1) NO20041297L (es)
PE (1) PE20030367A1 (es)
UY (1) UY3917U (es)
WO (1) WO2003026980A1 (es)

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DE102004052509A1 (de) * 2004-10-21 2006-04-27 Alcoa Deutschland Gmbh Verpackungswerke Schraubverschluss für Behälter
ITBS20060190A1 (it) 2006-10-27 2008-04-28 Guala Pack Spa Tappo per contenitore munito di sigillo di garanzia
FR2923172B1 (fr) * 2007-11-06 2009-12-11 Tetra Laval Holdings & Finance Procede et machine de fabrication d'un bouchon pour un col de recipient, ainsi que bouchon tel qu'obtenu par ce procede
ES2302483B1 (es) * 2008-02-04 2009-07-27 Plastivit S.A. Tapon de seguridad para botellas y similares con dispositivo antirrelleno.
US8720716B2 (en) * 2009-06-25 2014-05-13 Phillip John Campbell Closure with spring loaded tether docking
FR2957587B1 (fr) * 2010-03-22 2012-07-13 Tetra Laval Holdings & Finance Bouchon avec ligne d'affaiblissement
MX2012005807A (es) * 2009-11-27 2012-06-12 Tetra Laval Holdings & Finance Tapon con linea de debilitamiento.
US8443999B1 (en) * 2012-04-16 2013-05-21 Robert C. Reinders Cap, cap/container combination
US11332290B2 (en) 2015-04-02 2022-05-17 ThisCap, Inc. Cap for container
TWI589498B (zh) * 2015-04-02 2017-07-01 邁可約瑟夫 麥奎爾 容器用之蓋子
US11312544B2 (en) 2020-03-30 2022-04-26 ThisCap, Inc. Cap for container
KR101880107B1 (ko) * 2016-12-16 2018-07-19 성보연 분리수거가 용이한 용기 마개
US10836544B2 (en) 2018-05-09 2020-11-17 Silgan White Cap LLC Closure with hinge
HRP20230137T1 (hr) * 2018-09-04 2023-03-31 ThisCap, Inc. Zatvarač za posudu
US10654625B2 (en) * 2018-10-12 2020-05-19 Closure Systems International Inc. Twist and flip lock closure
CN113795433A (zh) * 2019-03-11 2021-12-14 阿尔温莱纳股份有限两合公司阿尔普拉工厂 容器盖和容器
CN114423683A (zh) * 2019-07-27 2022-04-29 这个瓶盖有限公司 用于容器的盖子
DE102020107184A1 (de) * 2019-11-06 2021-05-06 Bericap Gmbh & Co Kg Unverlierbarer Schraubverschluss
DE102019122274A1 (de) * 2019-08-20 2021-02-25 Kraussmaffei Highperformance Ag Verschlusskappe für Getränkebehälter
US11059633B2 (en) 2019-10-31 2021-07-13 Cheer Pack North America Flip-top closure for container
US20220041339A1 (en) 2020-08-07 2022-02-10 Niagara Bottling, Llc Single anchor closure
US20220177199A1 (en) * 2020-12-04 2022-06-09 Niagara Bottling, Llc Multiple asymmetric anchor container closure
EP4225657A1 (de) 2020-12-23 2023-08-16 KAMES, Alexander Oliver Verschlussanordnung für ein behältnis

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Also Published As

Publication number Publication date
DE10146817A1 (de) 2003-04-17
US7712619B2 (en) 2010-05-11
CN100542902C (zh) 2009-09-23
AR036563A1 (es) 2004-09-15
EP1429973A1 (de) 2004-06-23
PE20030367A1 (es) 2003-04-10
ECSP045010A (es) 2004-07-23
BR0212688B1 (pt) 2012-10-16
ATE365134T1 (de) 2007-07-15
ES2287320T3 (es) 2007-12-16
WO2003026980A1 (de) 2003-04-03
CO5560600A2 (es) 2005-09-30
UY3917U (es) 2003-09-30
US20050045578A1 (en) 2005-03-03
BR0212688A (pt) 2004-10-19
EG24594A (en) 2009-12-13
NO20041297L (no) 2004-06-11
DE50210359D1 (de) 2007-08-02
MXPA04002609A (es) 2005-02-17
CN1589215A (zh) 2005-03-02

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