DE4002967A1 - SCREW CAP FOR ORIGINALITY SECURING FOR PARTICULAR WIDE NECK CONTAINERS - Google Patents

Abstract

A screw cap (1) with tamperproof element, in particular for wide-necked containers (2), comprises a closure cap which can be screwed onto the neck (5) of the container. The tamperproof element consists of a visible or palpable tamperproof feature on the screw cap, which is irreversibly formed by deformation of a part of the closure cap (6) when the closure is turned in order to open the container or by locking of parts of the closure cap.

Description

The invention relates to a screw cap with Originali Security assurance according to the preamble of claim 1.

Screw caps with tamper-evident protection for containers are generally known. Such closures mostly have one at the lower edge portion of the cap Narrow, molded webs that form predetermined breaking points ring from the bottom of the container neck reach behind the formed bead. As soon as the cap for Purpose of opening the container rotated and thus upwards is driven, the designed as predetermined breaking points tear narrow connecting webs, because the locking ring due to the bottle bead protruding outwards does not move upwards can be. The locking ring is thus from the clasp cap blasted off and remains on the bottle neck, if the ring does not break itself and come down from the bottle neck falls or is removed from it. That kind of ori Quality assurance is, however, for wide-neck containers  disadvantageous in that because of the large container the breaking of the predetermined breaking bars when opening the Container is difficult to accomplish, so that mostly the bars must be cut with a tool, and secondly due to the tolerances to be accepted it is often possible to open the cap after expanding Remove the tamper-evident ring with a pointed tool, without the security function unfolding could. Tampering with the closure cannot therefore be avoided getting closed.

Another very serious disadvantage of such a ver conclusion on wide neck containers is that the Ver by turning the cap a certain amount can be opened, so that one inside the container established vacuum is released, but the circlip itself is not yet blown up. Will the cap then closed again, so the vacuum is inside the Container dismantled, but the opening of the Closure not visible from the outside. One of a kind opened and closed container can thus in the sales shelf be put back without outside the opening that had taken place would be controllable. It is on hand that such open goods often long before mold or expire on the packaging otherwise spoil a way.

The object of the invention is to provide a screw cap especially for wide-neck containers to create an original has security against any opening of the closure displays in a safe manner and also that of the previous ones Tamper evident closures occurring in avoiding a detached circlip.

According to the invention, this object is characterized by the solved part of claim 1 included features, wherein expedient developments of the invention by the in the  Characteristics indicated subclaims are marked.

According to the invention takes place when opening the ver finally a locking of parts of the cap, wel che is irreversible and the appearance of a visible or noticeable originality feature on the screw cap itself conditionally. This can be done by indenting protrusions window-like openings or disengagement of projections window-like openings and interlocking tongues and recesses are made, with different Coloring the originality can still be clarified can. In an alternative expedient embodiment, he discoloration of the screw cap follows due to a deformation of part of the screw cap when Turn open. This discoloration can be caused by a layer of paint follow that under deformation into a visible section the cap is displaced or by corre sponding Appropriate choice of material by using a material for the cap Det, which remains under deformation stress discolored. This allows the screw cap or screw closure itself can be determined whether the closure is already was manipulated without a committee in the form of a blown retaining ring arises.

It is particularly useful in the case of discoloration the deformable section of the screw cap an active surface combination of tapering inwards the lower edge portion of the cap realized with a conical inclined surface on the neck of the container. If the cap is pulled off by turning it up, comes it after a deformation of the lower edge section outside, so that the lower edge section remains discolored and so that the first time the shutter is opened is displayed. The closure can then be easily reused.

The formation of the ori takes place in a particularly expedient manner Ginality feature when locked between a cap and  a locking member of the closure, which is thus two parts is building. Here, the cap sits on the locking member, which is in the rotationally engaged position with the container neck, thus has the screw threads. The cap can be turn on the locking element until a Rest position is reached, which by locking elements on the Cap reached in cooperation with catches on the locking element becomes. If the cap is rotated into the locking position in which the Locking elements and locking of the cap and the locking member in locking position, the originality is formed feature, for example by indenting or disengaging Tei len the cap or the locking member in openings or Ausneh tion of the locking member or the cap a permanent visible or noticeable change in the screw cap becomes. It is advantageous that the entry of the rest position is also audible, so that the first user of the Ver finally the first opening with an audible signal can control. Once the formation of the originality mark times with non-releasable locking position between the cap and the locking element is reached, the cap is turned further also rotated the now coupled locking member so that the Closure is opened. That is, the tamper-evident feature becomes in a safe way immediately before the actual one Opening process of the screw cap formed so that a Manipulation of the screw cap (opening without triggering tamper-evident) is no longer possible.

The display of the tamper-evident feature in the stop position displayed on the screw cap in a variety of ways gene, such as by a Ver at the lower edge portion of the cap toothing is formed, which in the locked position with an ent speaking counter toothing is aligned on the locking member, the cap relative to the locking member in the locking position is moved below, so that the toothing and the counter toothing come into engagement and thus the originality feature becomes visible to the outside. Also the kinematic reversal is possible by the cap of the locking member in the locking position  lifted off and thus an engagement position between the cap and Locking element is lifted. This release that the Originality can then be formed by different Coloring still to be highlighted. In an alternative Embodiment becomes a bead or becomes bead-like front jumps in the manner of pimples through window-like openings of the pressed or disengaged from another part, where by again a visible change in the screw is generated, which forms the originality feature.

In a particularly advantageous manner, the locking member is of the egg type ner cap and made of a softer material Sealing properties made so that the locking member itself also represents the seal of the container neck. In Further development of the invention can also on the locking member one or more sealing lips may be provided, which in Ver Close position on the surfaces of the container neck gene, especially on the inner surface of the neck of the container Area of the tank mouth.

Of course, different configurations can be made make the catches or locking elements, in particular conveniently, the catches only in one direction of rotation get into locking function, which expediently with the Rotational opening movement of the locking member and thus the Opening movement of the closure matches.

In a further embodiment is between the locking member and cap provided a tamper-evident ring, which at First open the lock by means of a steep thread in the cap is pulled or disengaged, until this ring with a molded part irreversibly in the locking ring or snaps into the locking member, so that with Wei The screw thread is opened before the cap is opened. By retracting or extending this additional originality however, an irreversible originality feature is visible bar.  

In an expedient development, the locking member forms the outer cap of the closure and overlaps an inner cap, which rests firmly on the container neck in the closed position, the tamper-evident feature again when opening, here by turning the outer cap, due to locking with the Inner cap becomes irreversibly visible. In particular according to the invention for the notches and latching elements Sägezahnpro file uses a relative rotation of the outer cap Allow to the inner cap in the opening direction, but one Prevent relative rotation in the opposite direction, so that in Ge the outer cap is blocked with the inner cap and thus no longer the originality feature once created can be undone.

The originality feature is advantageously carried out by Coverage of labeling fields with openings in the outer cap reached, with the flags on the top of the inner cap are provided. When opening, d. H. when opening the outer cap is despite the on handle position due to the sawtooth-like profile an over run the catches over the locking elements possible, so that in follow the relative rotation between the cap and inner cap Openings get over the labeling fields and thus the originality feature is shown. On the other hand a turning back of the outer cap relative to the inner cap is not more possible so that the originality feature is irreversible preserved.

The labeling fields can be colored fields or labeled fields must be formed. Although it is appropriate is to advance the openings and the color fields on the base of the cap hen, it may also be appropriate to open the openings in the manner of Recesses or the like on the side wall of the outer Cap and the labeling fields on the side wall of the In provided cap. The same applies to the arrangement of the catches or catch elements, which are an alternative to the arrangement  provided on the cap base also on the side wall of the cap could be.

It expediently takes place from a certain rotational position especially if the labeling fields in full overlap with the openings ben the inner cap of the container neck, which has the consequence that the tight fit of the inner cap in the container neck is removed and rotated the inner cap with the outer cap becomes. This means that there is no rotation direction Change in the overlap between the opening and the license plate fields, so that here too the originality feature is mistaken remains versible. It is advisable to take it with you shoulder radially on one of the side wall of the outer cap formed inward projection of the inner cap holds on the outer cap. Here is the engagement position between the sawtooth profiles or the notches and the notches lementen so that both when you take the shoulder the inner cap but also in the closed position, where the driver shoulder is at a distance from the inner cap, the locking engagement position between the detents and the detent elements is guaranteed. This is essential for the on preservation of the originality feature.

Especially with pressurized materials that are in the Containers are included, it is appropriate if the outer Cap is designed so that when you turn it open the inside press the cap onto the container neck until the Mit the shoulder begins to lift the inner cap off the container ben. This can be done by training on the bottom of the outer cap The resilient part, such as a resilient lip, made be used, but the bottom is expediently the outer ren cap bulged downward so that the Bulge with pre-tension presses on the inner cap.

Preferred embodiments of the He Finding described with reference to the drawing. In it show:  

Fig. 1 is a schematic sectional view of part ei nes screw closure for a container,

Fig. 2 is a sectional view analogous to an alternative embodiment,

Fig. 3 is a sectional view analogous guide form a further stop,

Fig. 4 shows a variant of the locking member shown in Fig. 3 and

Fig. 5 shows another embodiment of a threaded joint statements in a schematic view and in section,

Figure 6 is a schematic partial sectional view of another embodiment of a screw cap ses.,

Fig. 7 is a sectional view of a guide according to the invention From the form of a nut screwed onto a wide-mouth container closure cap,

Fig. 8 is an enlarged view of a portion of the closure cap shown in Fig. 7,

Fig. 9 shows a section along the line AA in Fig. 8,

Fig. 10 is a sectional view of the inner cap,

Fig. 11 is a plan view of the inner cap,

Fig. 12 is a sectional view of the outer cap,

Fig. 13 is a plan view of the outer cap shown in Fig. 12 as well

Fig. 14, the view Z of Fig. 12.

Fig. 1 shows a generally designated 1 screw connection for a container 2 , in particular a wide-necked container made of glass or plastic. The screw cap 1 comprises a locking member 3 with a screw thread 4 , which is in the rotationally engaged position with the container neck 5 and on which a cap 6 is arranged. The cap 6 is secured via a radially inwardly projecting bead 7 against pulling off from the locking member 3 , the bead 7 engaging in a corresponding recess 8 of the locking member 3 . Inter mediate locking member 3 , in particular the cap-like bottom 9 of the locking member 3 and the cap bottom 10 of the cap 6 are distributed over the circumference arranged locking elements on the cap 6 and locking on the locking member 3 , generally designated 11 net. In one embodiment, the latching elements of the cap 10 can be bulging projections which can be latched into corresponding cut-out recesses in the latching member 3 , the latching position being intended to be irreversible.

As can be seen from FIG. 1, in the exemplary embodiment shown there, the cap base 10 and the base 9 of the locking member 3 are arranged at a vertical distance from one another, specifically due to the locking elements of the cap 6 . In the latching position, that is, when snapping in, ie when the latching elements 11 engage in the corresponding grooves on the bottom 9 of the latching member 3 , the cap bottom 10 sits on the bottom 9 of the latching member 3 , so that the vertical distance is overcome. That is, in the locking position, an axial downward movement of the cap 6 is effected relative to the locking member 3 .

Furthermore, the cap 6 has at its lower edge section at 12 from the detail shown on the right in FIG. 1 more clearly visible tongue-like projections 13 , which correspond to corresponding recesses 14 distributed over the circumference of the locking member 13 at 15 .

The cap 6 can be rotated on the locking member 3 until the locking elements formed on the cap 6 arrive at the most of the locking member 3 , where, as the cap 6 is rotated further, a snap or snap as a result of the formation of the detents that the cap 6 is locked with the locking member 3 . In this latching position, as described above, the cap 6 has been moved downward relative to the latching member 3 , so that the tongues 13 and recesses 14 which are aligned with one another in the latching position engage with one another. This position of engagement creates the originality feature which is visible from the outside and which can no longer be undone. Upon further rotation of the cap 6 , the locking member 3 is rotated due to the locking of the two parts, so that the screw closure 1 is now opened.

In an alternative, not shown graphically imple mentation form can be caused by kinematic reversal of the catches or the locking elements that the cap 6 is moved away from the locking member 3 upwards, so that the tongues 13 disengage from the recesses 14 , which then the originality feature is brought about by the pulled-apart tongues and recesses.

For better clarification of the tamper-evident feature, the locking member 3 can be colored differently than the cap 6 and here at can be realized according to the chosen kinematics numerous possibilities for variation, for example with a tamper-evident feature, where the tongues 13 are moved from the recesses 14 , the behind the tongue 13 or under the tongue 13 surface of the locking member receives a signal-colored coloring, which is clearly visible when the cap 6 and locking member 3 are moved apart.

The locking member 3 , which is cap-shaped, is expediently made of a material that is softer than the cap 6 with sealing qualities, and that the insertion of a sealing washer or a compound can be omitted. In particular, the locking member 3 at 16 has a circumferential sealing lip, which rests in sealing contact on the inner surface of the container mouth.

In the embodiment according to FIG. 2, the same reference numerals as in FIG. 1 are used for the same construction parts. Here, too, is the cap 6 with its Kappenbo 10 at a distance from the bottom 9 of the locking member 3rd As soon as the latching elements 17 reach the latches 18 and the Rastein grip position is effected, there is an axial relative movement of the cap 6 to the latching member 3 , so that the cap bottom 10 rests on the bottom 9 of the latching member 3 . The centrally formed on the bottom 9 of the locking member 3 large-area bead 19 passes into the corresponding opening 20 of the Kappenbo dens 10 , so that the surface of the bead 19 is flush with the surface of the cap bottom 10 and thereby the tamper-evident feature is formed, whereby by differen che Coloring between bead 19 or locking member 3 and cap 6, the tamper evident is clearly visible.

Here too there is the kinematic reversal by the cap 6 , which normally rests on the bottom 9 of the locking member 3, is raised in the locking position, so that the opening 20 is inevitably released from the bead 19 , which in turn forms a tamper-evident mark, which of is clearly visible on the outside.

In the embodiment according to FIG. 3, the same reference numerals as in FIGS. 1 and 2 have again been used for the same components. According to Fig. 3, the cap 6 at the lower edge portion at 15 distributed over the circumference fen ster-like openings 21 and the locking member 3 is divided into branches and consists of a cap-shaped section 3 a and the actual locking member section 3 b, which engages in rotation with the container neck 5 is located. The coupling of the two parts 3 a and 3 b is via a cam 22 which is guided in a corresponding cam curve 23rd The actual detents are again shown at 11 . Again, the cap 6 can be rotated until the Rastele elements of the cap 6 come against the detents of the locking member section 3 b. As soon as the irreversible locking engagement position is sufficient, the locking member section 3 b is also rotated, so that as a result of the interaction between cam 22 and cam curve 23, the locking member section 3 b is pressed radially outward and, as a result, beads 24 molded on the locking member section 3 b dip into the window-like openings 21 . This creates the originality feature that is visible from the outside.

Alternatively, the locking member section 3 a can be omitted, which is however advantageous due to the additional sealing effect or sealing function. Such an embodiment is shown in FIG. 4, where the cam 22 is formed on the cap 6 and the cam curve 23 on the locking member 3 . Depending on the formation of cam and cam curve 22 and 23 , the tamper-evident feature can be effected by disengaging the beads 24 from the window-like openings 21 or by indenting the beads 24 into the window-like openings 21 . Here, too, the originality feature can be increased by a color effect through different colors between the cap 6 and the locking member 3 . In addition, it should be noted in this context that reaching the locking position is also audible, so that the first-time user of the bottle when turning the cap 6 into the locking position can hear that the screw cap is moved into the irreversible locking position for the first time.

Fig. 5 shows another embodiment, in which case the cap 6 is in the Eigriffsstellung with the container neck 5. At the lower edge section of the cap 6 , an inwardly pre-shaped tongue 25 is provided, which is expediently formed all around the cap 6 and is integral with the cap 6 . This tongue engages over an inclined surface 26 formed on the container neck 5 , which can be formed by a raised training or circumferential. If the cap 6 is unscrewed towards the top, the tongue 25 inevitably deforms on the corresponding conical surface 26 , the deformation being identified by V. If the cap 6 or the tongue 25 is made of material which changes its color, in particular plastic material, under deformation deformation, the deformation V results in a discoloration of the end section 25 which is irreversible and thus forms a clearly visible originality feature. Of course, the tongue 25 need not be formed on the lower edge portion of the cap 6 , son can also be realized on the cap base 10 or at a suitable location of the cap 6 . It is only essential that with the opening of the twist a deformation takes place on a part, which changes its color under deformation tension.

In the embodiment of FIG. 6, the same reference numerals as in the previous figures have been used for the same construction parts. In the embodiment of Fig. 6, an intermediate ring 27 between the cap 6 and locking member 3 is provided, which rotatably but movably of the locking member 3 is guided axially in a groove 28 and via a thread 29 with a greater pitch than the threads 30 between the locking member 3 and Container neck 5 of the cap 6 is in the rotationally engaged position. Depending on the direction of the thread, rotating the cap 6 of the intermediate ring 27 either moves it down from a retracted position within the cap 6 into a visible position, which then represents the tamper-evident feature, or retracts into the cap 6 from an extended position, so that the retracted position forms the originality feature. In any case, the intermediate ring 27 has at least one locking element with which the intermediate ring can be locked with the locking member, so that the screw closure can only be opened in the locking position with a further rotation of the cap 6 . This is also a Originali titätsicherung before the actual rotary opening process, it is sufficient so that no uncontrolled opening of the closure is possible. In the embodiment according to FIG. 6, the latching element on the intermediate ring is formed by a knob-like jump 31 which can be irreversibly pressed into a corresponding recess 32 on the latching member 3 (positive locking or the like).

Fig. 7 shows a generally designated 1 ' screw lock for a container 2 ', in particular a Weithalsbe container made of glass or plastic (container neck diameter before preferably greater than 30 mm). The screw cap 1 'comprises a locking member 3 ' with a screw thread 4 ', which is in the rotationally engaged position with the container neck 5 ' or can be screwed onto the container neck. The locking member 3 'represents the outer cap of the screw cap 1 '. Inside the outer cap 3 ', an inner cap 6 ' is arranged, which rests on the container neck 5 'from above.

As can best be seen from Fig. 8, the inner cap 6 'has a circumferential sealing lip 7 ' projecting from the bottom underside, which in the embodiment shown with a wedge-shaped contact surface 8 'sealingly abuts the inner surface of the container neck 5 ', whereby the inner surface of the container neck is complementary conical or wedge-shaped. However, other sealing lip designs are also possible.

The outer cap 3 ', which is provided in the illustrated embodiment with a catchy screw thread, as best seen in Fig. 12, has a 9' drive shoulder, the circumferential and by an inwardly projecting projection 10 'at the bottom End of the outer cap 3 'is formed. In the closure position shown in Fig. 8, the driver shoulder 9 'is at a ver tical distance to a 11' designated circumferentially formed from the stop shoulder of the inner cap 6 '. Fig. 8 also shows the engagement position of the locking member or the outer cap 3 'trained notches 12 ' with the inner cap 6 'formed locking elements 13 '. The detents 12 'and the locking elements 13 ' result more clearly from FIGS . 11 and 14, where they are shown in plan view.

Fig. 9 shows that the detents 12 'and the locking elements 13 ' are each formed in the manner of a sawtooth profile, the blocking ramp of the detents and the locking elements with 14 ' and the ramp of the sawtooth profile with 15' is designated net. Obviously, a relative movement between the outer cap 3 'and the inner cap 6 ' with a movement of the outer cap 3 'in Fig. 9 to the right is possible, which corresponds to a rotation of the outer cap 3 ' in the clockwise direction and thus in the rotational opening direction, since the outer cap 6 'with the notches 12 ' over the ramp 15 'of the sawtooth profile of the inner cap 6 ' runs or overflows into this. On the other hand, a relative movement or relative rotation between the outer cap 3 'and the inner cap 6 ' due to the vertically running ramps 14 'blocked and irreversible, since the outer cap 3 ' is not in Fig. 9 to the left and thus in the closing direction can be moved against the inner cap 6 '.

FIGS. 10 and 11 show the construction of the inner cap 6 'having formed on the upper surface of the cap base latching elements 13' according to Fig. 11 rotating along a circle as a saw-tooth profile are formed at 16 '. Furthermore, on the top of the inner cap 6 'identification fields 17 ' are provided, namely in the illustrated embodiment, a total of four identification fields 17 'in the manner of segments which are offset from one another by 90 degrees and have an angular width of approximately 25 degrees. The identification fields 17 'can be formed by color fields, for example with red color or by other markings.

As shown in FIGS. 12 to 14, the outer cap 3 'accordingly formed openings 18 ', which are also arranged segment-like and offset by 90 degrees to each other and have an angular width of about 25 degrees. The radial distance to the center is the same as in the case of the labeling fields 17 ', so that in a certain rotational position of the outer cap 3 ' and the inner cap 6 ', the labeling field of 17 ' comes into congruence with the openings 18 ', so that the labeling fields 17 ' can be seen from above through the outer cap 3 '. Shape and size of the identification fields 17 'do not have to be adapted to the openings 18 '. It must be ensured Lich that from a certain rotational position there is an overlap between the labeling fields 17 'and the openings 18 ', so that in a certain rotational position through the openings 18 'the labeling fields 17 ' are recognizable as an irreversible originality feature. Fig. 14 shows that along the same circular line as the locking elements 13 'of the inner cap 6 ' formed notches 12 'are provided segment by segment on the underside of the bottom of the outer cap 3 ', in four segments which are offset by 90 degrees to each other and have an angular width of about 40 degrees each. If necessary, the notches 12 ', which represent a sawtooth profile in segments, can also be designed umlau fend analogous to the sawtooth profile 16' of FIG. 11.

Manufacturing-related in the Fig. 8 Ver closed position of the cap 1, the openings 18 'are not overlapping with the labeling fields 17 ' formed, rather the leading in the rotational opening direction F ( Fig. 13) is the radial edge 19 'immediately adjacent to the trailing radial Edge 20 'of the associated identification drawing field 17 ', namely in the rotational opening direction before this trailing edge 20 ', so that there is no overlap between the identification field 17 ' and the opening 18 'existing. As soon as the outer cap 3 'is rotated in the rotational opening direction F, the leading edge 19 ' of the opening 18 'overflows the associated label 17 ', so that the originality feature, such as the red color of the label 17 ' through the opening 18 ' is visible. As soon as there is a rotation in the rotational opening direction F, that is, the outer cap 3 'is rotated relative to the inner cap 6 ', which sits with a tight fit due to the wedge surface 8 'in the container neck 5 ', the detents 12 'overflow the sawtooth-like Rastele elements 13 '. A turning back of the outer cap 3 'relative to the nenkappe 6 ' is no longer possible due to the described locking action between the sawtooth profiles or the vertically extending ramps 14 ', ie the label 17 ' made visible in the opening 18 ', ie the original Actual feature, can no longer be reversed by turning back the outer cap 3 'relative to the inner cap 6 '. Thus, once an opening is made, namely already ge ring opening of the cap as a result of the overlapping of the openings 18 'with the identification fields 17 ' is displayed without this originality feature could be undone again.

With a further rotation of the outer cap 3 'this comes as a result of the screw thread engagement with the container neck 5 ', so that in a certain rotational position the slave shoulder 9 'strikes the contact shoulder 11 ' of the inner cap 6 ', so that with further rotation of the outer Cap 3 'finally the inner cap 6 ' is taken up. In this position, the detents 12 'and the locking elements 13 ' are of course still in the fully engaged position, so that now with rotation of the outer cap 3 'also due to the locking engagement, the inner cap 6 ' is rotated and thus the full overlap of the identification drawing fields achieved in the meantime 17 'with the openings 18 ' is maintained. Size and arrangement or orientation of the identification fields 17 'and the openings 18 ' is such that from rotation of the outer cap 3 'from its closed position from the overlap of the identification fields 17 ' with the corresponding openings 18 'begins and the full Overlap of the labeling fields 17 'with the openings 18 ' is reached as soon as the inner cap 6 'is lifted over the driver shoulder 9 ' from the container neck 5 'and starts to rotate. If a slight rotation of the outer cap 3 'is to be permitted without the originality feature already being visible, this can be taken into account by appropriate displacement or choice of the size of the identification fields 17 ' and the openings 18 '.

Even when the container neck is closed again by opening the tamper-evident cap cannot be placed more undone.

Instead of the formation of the catches and catch elements on the bottom of the outer cap and the inner cap, the catches and catch elements can also be formed on the inner or outer surface of the side wall of the outer cap and the inner cap. Instead of the thread shown in FIG. 12 or in FIG. 8 over the circumference of the container neck or the cap, segment-like screw beads offset from one another can also be provided on the circumference.

When the contents of the container bottles are under pressure, it may be appropriate to hen a springy element at the bottom of the bottom of the outer cap 3 ', in particular in the center, so that with the screwing on of the outer cap 3 ' it is still pressed onto the inner cap 6 ', so that this remains in the sealing position until the driving shoulder 9 'in the cap 6 ' is lifted from the container neck. In this case, a bulbous shape is particularly suitable on the underside of the bottom of the outer cap 3 ', which presses the inner cap 6 ' under pretension.

Claims (23)

1. Screw cap with tamper-evident for special wide-neck containers, with a screw-on cap on the container, characterized in that the tamper-evident is formed by a visible or tactile tamper-evident feature on the screw cap ( 1 ), which when opening the closure by deforming a part ( 25 ) of the cap ( 6 ) or by locking parts of the cap ( 6 , 3 ) is formed irreversibly. 2. Closure according to claim 1, characterized, that the originality feature is characterized by a or discoloration of the screw cap due to voltage ses is formed. 3. Closure according to claim 1 or 2, characterized in that the cap ( 6 ) on at least one section ( 25 ) has a color layer or is formed from a color-changing material under tension, which turns on opening the closure ( 1 ) a container neck formation ( 26 ) deformed in such a way that to produce the tamper-evident feature, the color is displaced from a section of the closure and made visible from the outside, or a section of the closure is permanently discolored under the deformation stress. 4. Closure according to claim 3, characterized in that the portion deforming during the turning opening ( 25 ) is formed by the lower edge portion of the closure, which protrudes obliquely downwards and radially inwards and a raised formation ( 26 ) of the container neck ( 5 ) engages in such a way that when rotating the section is pressed outwards by the raised formation under deformation. 5. Closure according to one of claims 1 to 4, characterized in that the closure ( 1 ) has a with the container neck ( 5 ) in the rotationally engaged position locking member ( 3 ) and a seated on the locking member cap ( 6 ) against pulling is secured by the locking member and Rastele elements that can be locked with detents on the locking member ( 3 ) in an irreversible locking position ( 11 ) in which the tamper-evident feature is formed due to the locking engagement. 6. Closure according to claim 5, characterized in that the tamper-evident feature by changing the Hö henlage and / or radial position of the cap ( 6 ) and locking member ( 3 ) is formed in the locking position, such that one or more beads ( 19 , 24 ) or projections ( 13 ) in openings ( 14 , 20 , 21 ) of the cap ( 6 ) or the locking member ( 3 ) can be engaged or disengaged. 7. Closure according to claim 5 or 6, characterized in that the latching member ( 3 ) is cap-like and designed as a seal of the closure ( 1 ) for the container in which the latching member ( 3 ) made of a softer material than the cap ( 6 ) and / or is formed with sealing lips ( 16 ) which, in the closed position, bear sealingly against the container neck. 8. Closure according to one of claims 5 to 7, characterized in that the tamper-evident by the on or off grip position of the tongue-like projections ( 13 ) formed in corresponding recesses at the lower edge portion of the cap ( 6 ) seated on the locking member ( 3 ) ( 14 ) of the locking member ( 3 ), by the engagement or disengagement position of a bead ( 19 ) which is formed on the part ( 9 ) of the locking member ( 3 ) spanning the container, into a corresponding opening, ( 20 ) on the cap base ( 10 ) or by the engagement or disengagement position of knob-like radial projections ( 24 ) distributed over the circumference of the latching element and having window-like openings ( 21 ) in the cap ( 6 ) which are arranged on the neck portion of the cap ( 6 ) , is formed. 9. Closure according to one of claims 5 to 8, characterized in that the latching member ( 3 ) is formed in several parts, preferably two lig, wherein part ( 3 b) is formed for the rotational engagement position with the container neck and another part ( 3rd a) or a part of the cap ( 6 ) via a cam ( 22 ) and a cam curve ( 23 ) against the other part ( 3 b) can be moved radially into the engagement position in order to form the originality when rotating. 10. Closure according to one of claims 5 to 9, characterized in that the cap ( 6 ) and locking member ( 3 ) made of materials of different colors is expediently formed by two-component injection molding, or at least the parts forming the tamper-evident characteristic the remaining parts of the screw cap ( 1 ) are colored. 11. Closure according to one of claims 5 to 10, characterized in that the locking member ( 3 ) has an intermediate ring ( 27 ) which is held in the locking member in a guide ( 28 ) rotatably but axially movable and via a steep thread ( 29 ) cooperates with the cap ( 6 ), such that when the cap ( 6 ) is rotated, the intermediate ring ( 27 ) is moved relative to the latching member into a latching position in which the intermediate ring with a Rastele element ( 31 ) formed thereon with a latching of the latching member locked and forms the originality feature by extending out of the cap ( 6 ) or by retracting into the cap ( 6 ). 12. Closure according to one of the preceding claims, characterized in that the closure ( 1 ') with the container neck ( 5 ') screwable locking member ( 3 ') which forms an outer cap of the closure and an inner cap sitting on the container neck ( 6 ') of the closure engages, which has latching elements ( 13 ') which can be latched into a latching position when the closure cap is opened with notches ( 12 ') on the latching member ( 3 '), which irreversibly forms the originality feature. 13. Closure according to claim 12, characterized in that the detents ( 12 ') and the latching elements ( 13 ') are designed such that a relative rotation between the outer cap ( 3 ') and inner cap ( 6 ') in the direction of rotation opening possible, is blocked in the opposite direction. 14. Closure according to claim 12 or 13, characterized in that detents ( 12 ') and locking elements ( 13 ') are designed as a sawtooth profile. 15. Closure according to one of claims 12 to 14, characterized in that the latching elements ( 13 ') on the inner cap ( 6 ') as a peripheral sawtooth profile and the notches ( 12 ') on the outer cap ( 6 ') as segments with a sawtooth profile are formed or vice versa. 16. Closure according to claim 15, characterized, that four segments with an angular width of each about 40 degrees 90 degrees to each other are. 17. Closure according to one of claims 12 to 16, characterized in that to form the tamper-evident feature on the outer cap ( 3 ') openings ( 18 ') and on the inner cap ( 6 ') identification fields ( 17 ') are formed overlap in the rest position to make the originality visible. 18. Closure according to claim 17, characterized in that the openings ( 18 ') in the bottom of the outer cap ( 3 ') and the identification fields ( 17 ') are provided on the top of the bottom of the inner cap ( 6 '). 19. Closure according to claim 17 or 18, characterized in that four openings ( 18 ') and four identification fields ( 17 ') each with an angular width of preferably about 25 degrees and 90 degrees to each other are provided ver. 20. Closure according to one of claims 12 to 19, characterized in that the outer cap ( 3 ') has a driving shoulder ( 9 ') for the inner cap ( 6 '), which is in the closed position of the screw closure ( 1 ') at a distance un below a stop shoulder ( 11 ') on the inner cap ( 6 '), which is equal to the slope when rotating with the outer cap ( 3 ') to the full representation of the tamper-evident feature, preferably to fully cover openings ( 18 ') and Labeling field is the ( 17 ′). 21. Closure according to one of claims 12 to 20, characterized in that the inner cap ( 6 ') has a circumferential sealing lip ( 7 ') extending from the bottom underside downward for tight and firm contact with the inner neck surface of the container ( 5th ') having. 22. Closure according to claim 21, characterized in that the sealing lip ( 7 ') has a wedge-shaped contact surface with the container. 23. Closure according to one of claims 12 to 22, in particular for use on containers for receiving pressurized material, characterized in that the outer cap ( 3 ') preferably has a resilient or biased component which cap the inner presses on the container until the Mitnehmererschul ter ( 9 ') raises the inner cap ( 6 ').