EP2639179A1 - Screw cap with tamper-proof band - Google Patents

Abstract

The cap (100) has an originality securing strip (114) connected to a lower side of the cap, where the cap is made from plastic. The strip has a cam-like projection (118) that grips a collar of a container. The strip has a recess (130) at a circumferential-side, where the projection is partially guided through the recess during closing of the container. The strip has an additional projection that extends in a longitudinal direction of the cap. The recess comprises two opening sections that are connected with one another, where a wall area of the strip is arranged between the opening sections.

Description

The invention relates to a screw cap made of resiliently elastic material, in particular of plastic, for containers, comprising at least one internal thread and at least one tamper-evident strip, which is at least partially connected to the underside of the screw with this, wherein the at least one tamper-evident strip at least one inside, cam-like Projection includes, which engages under a completely closed closure a covenant of the container.

From the prior art screw caps with tamper evident strips are known, which are used to prevent forgery of, for example, drugs or drinks to indicate the original closure state after the manufacturer's filling process.

In known closures from the prior art, tamper-evident strips are used, which are connected to the underside of the closure via predetermined breaking points therewith. For fixing the tamper-evident strip on the containers, regardless of their starting material, such as plastic or glass, they have a mostly continuous circumferential, ring-like collar below the container thread. Now, if a container is closed after filling with such known closures, so requires the annular collar during the screw widening of the arranged on the underside of the closure tamper evident strip, since internal projections must also be performed on this covenant. As a result, an increased torque acts in particular on the predetermined breaking points and thus often lead Already during the manufacturer's filling process to a breach or a breaking of the predetermined breaking points, whereby the tamper-evident function of the closure is lost and the corresponding containers must be sorted out.

As a collar here is a ring-like projection to understand, which is arranged circumferentially mostly below the container outer thread. The collar serves to fix the at least one tamper-evident strip or else to guide the container during the filling process.

Accordingly, it is the object of the present invention to provide a screw cap which, during the screwing off, removes the acting force applied in such a way that the tamper-evident function is still completely intact after the closure has been completely closed. Furthermore, the present invention has for its object to provide a cost-effective screw cap with tamper-evident function, regardless of the containers to be closed and the transfer rings arranged thereon.

This object is achieved according to the features of claim 1. Further advantageous embodiments will become apparent from the dependent claims.

According to the invention, the screw cap has at least one tamper-evident strip, which is designed in one piece or also in several parts. Depending on the manufacturing process of the tamper-evident strip, for example, band-like, one-piece design.

Furthermore, it is conceivable that the tamper-evident strip is designed in several parts and, in addition to the connection points to the closure cap, has further attachment points, by means of which, for example, the individual parts of the tamper-evident strip are detachably connected to each other.

An essential point of the invention is that the at least one tamper-evident strip has on the circumference at least one recess, through which the at least one cam-like projection can be guided at least partially when force is applied during closing. This is especially beneficial since during the closure process according to the invention, contrary to the known screw caps from the prior art, the tamper-evident strip almost free of strain, preferably strain-free, over the federal government is feasible. The at least one inner, cam-like projection is at least partially passable upon application of force during screwing through at least one recess of the tamper evident strip, so that the force acting on the cam-like projection force can be dissipated by the outward deflection or pivoting movement by the inventive design of the tamper evident strip ,

By screw closure according to the invention, the inner, cam-like projections are guided during screwing against the collar of the container and thus acted upon by a force. Due to the advantageous arrangement of corresponding recesses, this application of force to the cam-like projections causes their deflection outwards, at least partially, through the adjacently arranged recess. Thus, a derivative of the applied force. Upon completion of the application of force, that is, if the at least one cam-like projection is guided over the collar, the cam-like projection is returned to its original position due to a restoring force and thus engages under the collar, all connections are still intact. Thus, according to the invention, the tamper evident strip is almost stretch and / or stress-free, preferably strain and / or stress-free, passed over the federal government, since the at least one cam-like projection is at least partially passed through the at least one recess and thus dissipates the resultant force.

According to the invention, the connections between the tamper-evident strip and the screw cap are designed as predetermined breaking points, wherein the connections in the longitudinal direction preferably have a conical geometry. This is advantageous because a more predeterminable separation of the connections from the tamper evident strip or the screw cap is required. This makes it possible for almost all connections, preferably all connections, to tear off at the respectively tapered region of the contact surface.

The connections are preferably made wider at the respective common contact surface with the tamper-evident strip than at the corresponding common contact surface

Contact surface with the screw cap. The connections taper conically in the direction of the screw cap.

It is also conceivable that the connections taper conically in the longitudinal direction in the direction of the tamper-evident strip in order to allow a predeterminable tear-off. In the simplest case, all connections are of the same design and all taper conically in the longitudinal direction to the tamper evident strip or to the screw cap closure. However, it is also conceivable that the connections have a different geometrical design and, for example, have a conical taper, alternating with the tamper-evident strip and with the screw cap closure.

Preferably, the tamper-evident strip has at least one additional elevation, preferably 2 to 12 elevations, which extend in the longitudinal direction of the closure cap. These surveys have no common contact surface with the closure cap in the force-stress-free state of the screw closure according to the invention and are thus arranged at a distance therefrom. These additional surveys are proving to be advantageous, since they require a relieving of the connections and their premature, unwanted breakup is prevented. According to the invention, these additional elevations are fixedly arranged on the tamper-evident strip.

The arrangement of the additional surveys is carried out depending on the size of the screw cap according to the invention. In the case of screw caps for containers with a small opening diameter, it is conceivable, for example, that in each case circumferentially between two connections, such an additional, relieving elevation is arranged. For larger opening diameters is also conceivable that several additional, relief surveys are provided circumferentially between two connections.

According to the invention, the additional, relieving elevations in the longitudinal direction of the screw closure according to the invention are designed to be shorter than the connections which authentically connect the original security securing strips and the screw cap to one another.

In addition, it is conceivable that the tamper evident strip has at least one cam-like projection, preferably two to four further cam-like projections, which are arranged at deflection substantially free of deflection. Preferably, in each case two of these further cam-like projections are arranged diametrically opposite one another and engage under the collar of the container in the closed state. These further cam-like projections are fixedly disposed on the tamper evident strip inside and support this laterally. This is advantageous because these supporting cam-like projections hold and support the tamper-evident strip below the collar when opening the screw cap, so that the tamper-evident strip can not be guided upwards over the collar.

In a further embodiment according to the invention, the at least one cam-like projection can be guided at least partially radially outwardly through the at least one recess when it is acted upon during closing, wherein the recess is designed to be expandable when force is applied during the closing. This is advantageous since the force acting as a result of closing the closing torque can thus be dissipated at least partially radially outwards and the connections or predetermined breaking points remain substantially free of force. Thus, a tamper-evident function is already ensured during the closure, as the connections remain permanently intact before the container is opened for the first time.

In a further advantageous embodiment of the invention, a wall portion of the tamper-evident strip, which is arranged between two mutually communicating opening portions, at the same time a wall portion of the inner, cam-like projection. This is advantageous because thus the inner, cam-like projection, which is fixedly arranged on the tamper-evident strip, has a common wall surface with the latter. This is particularly advantageous according to the invention, since during the closing of the container thread circumferentially arranged collar applied to the inside, cam-like projection of the tamper-evident strip with a force such that it can be guided out through the recess and the tamper evident strip dimensionally stable, stress-free and / or remains strain-free and is not deformed or overstretched. By this passage of the inner, cam-like projection, the force resulting from the torque is deflected according to the invention, so that the connections, which are designed as predetermined breaking points, remain permanently intact during the closing.

In a further advantageous embodiment, the at least one recess of the tamper-evident strip has at least two interconnected opening sections, preferably three interconnected opening sections. This is advantageous, since thus the opening cross-section of the recess can be designed differently depending on the application. According to the invention, the screw cap has the same number of recesses as well as internal, cam-like projections. Depending on the geometric design of the inner, cam-like projections, the opening portions of the recess are predetermined, preferably, the opening portions are formed leg-shaped. If there are two interconnected opening sections, they may be aligned, for example, in a tip-shaped manner upwards or downwards in the longitudinal direction of the screw closure according to the invention. The corresponding cam-like projection is also preferably formed pyramidal. Further, a round, semi-circular recess is also conceivable, which is concave upwards in the longitudinal direction or down in the longitudinal direction of the screw cap, wherein the cam-like projection is present here preferably ellipsoidal.

In this case, longitudinal direction is to be understood as meaning the spatial extent in which the screw closure according to the invention has its greatest extent. This longitudinal direction is also determined by a longitudinal axis, which is preferably designed as a central center axis around which the screw closure according to the invention is preferably rotationally symmetrical.

In a further embodiment according to the invention, a first leg-shaped opening section and a third leg-shaped opening section are in continuous connection with one another via a second opening section and together have a U-shape. This is advantageous if the inner, cam-like projection has a square or rectangular cross-section, so that the projection is at least partially feasible by force during screwing through the U-shaped opening. The U-shape can be open in the longitudinal direction upwards or downwards. By this U-shape, the restoring force of the at least one cam-like projection is conditional. so that this is with the completion of the application of force again through the recess rückhindurchführbar to its original position and the federal government completely undercut. Of course, this form is not limiting, but can be extended as desired. Preferably, the geometric configuration of the recess and thus also the opening portions of the respective inner, cam-like projection adapted so that it at least partially, preferably entirely, during the application of force to the closing through the corresponding recess can be guided.

In a further advantageous embodiment of the invention, the at least one tamper-evident strip preferably has 2-12 cam-like projections which are arranged radially inwardly with respect to a longitudinal axis. According to the cam-like projections are arranged diametrically opposite each other. Depending on the geometric design of the cam-like projections, these have a constant spacing from each other or else a varying spacing.

Depending on the container to be closed, the cam-like projections may be parallelepiped-shaped, pyramidal, spherical-segment-like or also in any other polygonal spatial design. According to the invention, the projections are designed in such a way that the collar is completely engaged under full closure and that the collar rips open the cam-like projections in such a way that the predetermined breaking points between the closure cap and the tamper-evident strip tears open and the tamper-evident strip remains open while the closure cap is removable is. The cam-like projections thus preferably have a depth which corresponds to that of the collar.

In a further advantageous embodiment, the cam-like, inner projections along the longitudinal axis on a decreasing from top to bottom cross-sectional area, which is preferably arranged perpendicular to the longitudinal axis. This is advantageous because thus the cam-like projections on the federal government can be guided with simultaneous deflection by the corresponding recesses. The deflection is reversible, so that a sufficient restoring force returns the cam-like projections after deflection through the annular collar back to its original position and the cam-like projections fully engage under the federal government.

In a further advantageous embodiment, a preferably vertically arranged plane is spanned by the cross-sectional areas, which each have the largest, radial extent perpendicular to the longitudinal axis. This is advantageous since, depending on the arrangement of this plane in the longitudinal direction, the restoring force of the cam-like projections can be predetermined and adjusted.

In a further advantageous embodiment, at least one leg-shaped opening section intersects the spanned plane in a predeterminable cross-sectional area along its longitudinal axis and / or is arranged in a predeterminable cross-sectional area within this plane, wherein the cross-sectional area of the leg-shaped opening section is preferably arranged perpendicular to the longitudinal axis.

Thus, any cap with the technical feature of the tamper evident strip according to the invention forms a screw cap according to the invention. Thus, ordinary screw caps or screw caps with child safety function can have a reliable, inventive tamper-evident function.

In a further advantageous embodiment, the latter has a substantially constant torque during the application of force during the closure. This is advantageous, since thus no additional force acts on the connections / predetermined breaking points during the closing and breaks them up and cuts them. According to the invention, the substantially constant torque results in an intact tamper-evident function during the closure of the closure according to the invention.

The screw cap according to the invention is advantageously designed in one piece and can preferably be produced from plastic materials of known methods. According to the invention the screw cap is composed of plastics, plastic mixtures, composite materials such as fiber-reinforced plastics, thermoplastics, thermosetting plastics, polyethylene, polypropylene and / or a mixture thereof.

Further advantageous embodiments will become apparent from the accompanying drawings.

Fig. 1

einen aus dem Stand der Technik bekannten Schraubverschluss;

Fig. 2

einen erfindungsgemäßen Schraubverschluss;

Fig. 3

einen schematischen Querschnitt eines erfindungsgemäßen Schraubverschlusses;

Fig. 4a

eine schematische Draufsicht auf einen Teil eines erfindungsgemäßen Schraubverschlusses;

Fig. 4b

einen schematischen Querschnittsausschnitt eines erfindungsgemäßen Schraubverschlusses;

Fig. 4c

eine schematische Veranschaulichung der Auslenkung;

Fig. 5

eine räumliche Darstellung eines erfindungsgemäßen Schraubverschlusses;

Fig. 6

eine weitere Ausführungsform eines erfindungsgemäßen Schraubverschlusses;

Fig. 7

eine dreidimensionale Darstellung einer weiteren Ausführungsform eines erfindungsgemäßen Schraubverschlusses;

Fig. 8a

eine weitere Ausführungsform eines erfindungsgemäßen Schraubverschlusses;

Fig. 8b

eine Draufsicht des in Fig. 8a dargestellten erfindungsgemäßen Schraubverschlusses; und

Fig. 9

ein Diagramm bezüglich des einwirkenden Drehmoments.

Show:

Fig. 1

a known from the prior art screw cap;

Fig. 2

a screw cap according to the invention;

Fig. 3

a schematic cross section of a screw cap according to the invention;

Fig. 4a

a schematic plan view of a portion of a screw cap according to the invention;

Fig. 4b

a schematic cross-sectional detail of a screw cap according to the invention;

Fig. 4c

a schematic illustration of the deflection;

Fig. 5

a spatial representation of a screw cap according to the invention;

Fig. 6

a further embodiment of a screw cap according to the invention;

Fig. 7

a three-dimensional view of another embodiment of a screw cap according to the invention;

Fig. 8a

a further embodiment of a screw cap according to the invention;

Fig. 8b

a top view of the in Fig. 8a illustrated screw cap according to the invention; and

Fig. 9

a diagram relating to the applied torque.

In Fig. 1 a known from the prior art screw cap 2 is shown, wherein the left side of an outer side 4 and the right side corresponds to an inner cross section 6. The known screw cap 2 know a cap 8 with an internal thread 10. In the longitudinal direction I, a tamper-evident strip 14 is arranged on the underside of the closure cap 8, which are detachably connected to the closure cap via a plurality of connections 16. The tamper evident strip 14 has a plurality of internal projections 18. Now, if such a known screw cap 2 is used to seal a container 20, so the collar 24 of the container 20 during the closure of an expansion of the tamper evident strip 14, since the inner projections 18 are to be completely closed over the collar 24 to lead. During the guiding of the projections 18 over the collar 24 an expansion of the tamper-evident strip 14 is caused, whereby a resistance is caused, which leads to an increased torque during the screwing. The resulting force due to the increased torque is dissipated in the connections 16, which regularly tear under this application of force and are separated. Even a conical geometry of the collar 24 causes an increase in torque and a separation of the connections 16. A tamper-evident function is therefore no longer safe to provide.

Fig. 2 shows a screw cap 100 according to the invention, on the left side the outside 104 and on the right side a partial inside cross section 106 is shown. The tamper-evident strip 114 is arranged on the closure cap 108 via connections 116. According to the invention, the tamper-evident strip 114 has at least one recess 130, through which an inner, cam-like projection 118 arranged thereon can be guided at least partially under force application. In this embodiment, a plurality of recesses 130 are provided, which are each U-shaped.

In Fig. 3 is a schematic cross section of a screw cap 100 according to the invention shown, wherein like reference numerals will not be described again. In addition to the internal thread 108, the screw cap 100 also has a receiving thread 112 onto which, for example, cannulas or syringes (not shown) can be screwed or onto which preferably metering inserts (not shown) for product removal the container can be arranged. Of course, this is for illustrative purposes only. The screw cap 100 according to the invention can also be designed without such a receiving thread 112 in order to combine, for example, further application aids or sealing elements with the screw cap according to the invention.

Fig. 4a shows a plan view of the tamper evident strip 114 along the section line BB 'of Fig. 3 , which is formed perpendicular to the longitudinal axis L. Preferably, the tamper evident strip 114 is integrally formed. Advantageously, the tamper-evident strip 114 comprises at least one, preferably 2 to 12 and most preferably 4 to 8 inner, cam-like projections 118, wherein two cam-like projections 118 are arranged diametrically opposite each other. Furthermore, the cam-like projections 118 are oriented towards the longitudinal axis L. This is advantageous since a uniform expansion of the screw closure 100 according to the invention is caused in the production process during demoulding of the tool, and furthermore a uniform, firm seating of the cam-like projections 118 under the collar 24 (not shown) is provided.

The tamper-evident strip 114 has the same number of recesses 130 corresponding to the number of cam-like projections 118. According to the invention, a recess 130 allows the inner, cam-like projection 118, disposed immediately adjacent thereto, to deflect outwardly during the application of force during the guiding of the cam-like projection 118 over the collar 24 (not shown). In the in Fig. 4a shown embodiment, six inner, cam-like projections 118 are arranged directly adjacent to corresponding six recesses 130 and have a common wall region W. The orientation of the recesses 130 is in this case, for example, radially. The recesses 130 of a left-hand closure half 132 and a right-hand closure half 134 are advantageously arranged parallel to one another.

The longitudinal section taken along the line AA 'is in Fig. 4b shown. Here is a section of a screw cap 100 according to the invention shown in detail. The same reference numerals as before are not explained again. The tamper evident strip 114 shows an exemplary recess 130 which is U-shaped. The U-shape is formed by a first opening portion 136, which via a second opening portion 138 is in a continuous connection with a third opening portion 140, conditionally. Directly adjacent to this recess 130, an inner, cam-like projection 118 is arranged and has with this a common wall region W. According to the invention, the three opening sections 136, 138, 140 of each recess 130 have a comparable geometric configuration. However, it is also conceivable that the individual opening sections 136, 138, 140 have different geometric dimensions and thus, for example, present different widths or heights.

As in Fig. 4b illustrated, the inner, cam-like projections 118 a decreasing from top to bottom cross section, so that below the second opening portion 138 and the largest cross section is arranged. According to the invention, the outline of each cam-like projection 118 in the longitudinal direction L describes a curved curve with preferably a maximum of curvature with the largest radial extent of each cam-like projection 118. These curvature maxima span a plane E, which is arranged perpendicular to the longitudinal axis L. According to the invention, at least one opening section 136 or 140 intersects in its extent along the longitudinal axis L the clamped plane E in a predeterminable cross-sectional area and / or is arranged within this plane E with a predeterminable cross-sectional area. In the simplest case, both opening sections 136, 140 penetrate the plane E and end below this plane E. This is advantageous since the deflection is thus made possible, so that the cam-like projection 118 can be deflected outwardly during the guidance via the collar 24 (not shown) , Preferably spring, is and after completion of the application of force back to the starting position traceable, preferably zurückfederbar, and the collar 24 (not shown) is completely under attack. Advantageously, the opening portions 136, 140 terminate just below the plane E, preferably 0.1 to 1.0 mm below the plane E.

Fig. 4c shows a schematic illustration of the spring mechanism, while an internal projection 118 of a screw cap 100 according to the invention is guided over the collar 24 of a container, wherein the recess 130 as in Fig. 4b shown, U-shaped. Thus, the cam-like projection 118 is guided during the screwing in the longitudinal direction I against the collar 24. The recess 130 allows a deflection of the cam-like projection 118 outwardly through the recess 130 through, whereby the common wall area W undergoes a lateral deflection. The lateral deflection is due to the residual cross section of the cam-like projection 118. According to the invention, the cam-like projections 118 each have the same cross-section, so that a synchronous power dissipation is caused during the screwing. After completion of the application of force to the cam-like projection, ie after passing over the collar 24, the cam-like projection 118 is transferred back to its original position due to the geometrically determined resilience, so that the collar 24 is completely under attacked.

Fig. 5 shows a three-dimensional view of a screw cap 100 according to the invention, the outer side 104 is preferably formed groove-like, to allow improved grip during screwing.

In Fig. 6 a further embodiment according to the invention of a screw cap 100 is shown, in which case the screw cap is designed as a child-resistant screw cap 100. On the left side, the preferably grooved outer side 104 of the childproof screw closure 100 according to the invention is shown, whereas on the right side an inner cross section 106 is shown. An inventive child-resistant screw cap 100 has an outer cap 108a and an inner cap 108b, wherein the inner cap 108b has an internal thread 110. At the lower end of the inner closure cap 108b, the at least one tamper-evident strip 114 is arranged over a multiplicity of connections 116. The tamper evident strip 114 preferably comprises a plurality of internal, cam-like projections 118, which at least partially, preferably completely, can be passed through the respective recesses 130. The recesses 130, their opening portions, as well as their functionality are according to the embodiment described in detail above in FIG Fig. 2 to 5 to this child-resistant embodiment of the screw cap 200 according to the invention analogously applicable. In Fig. 7 is a correspondingly inventive childproof screw 100 spatially shown.

Fig. 8a shows a cross-sectional portion of another embodiment of a screw cap 100 according to the invention, wherein the same components as in the previous embodiments will not be explained again. The illustrated cross-section section shows another inventive design of the tamper evident strip 114 of the screw according to the invention and is thus suitable for any screw caps with tamper evident.

The tamper-evident strip 114 is detachably connected via connections 116 to the closure cap 108, wherein the connections 116 taper conically in the longitudinal direction I towards the closure cap 108. This is advantageous since, when force is applied during screwing on, the connections preferably break at the tapered, common contact surfaces with the closure cap 108. Of course, it is also conceivable that the connections 116 to the tamper evident strip 114 are tapered.

In addition, the tamper evident strip 114 has relief protrusions 142 which are fixedly attached to the tamper evident strip 114 and extend longitudinally toward the closure cap 108 but have no common contact surface therewith and are spaced therefrom in the longitudinal direction I. Such elevations 142 prove to be advantageous since they support the closure cap 108 slightly against the tamper evident strip 114 and prevent unintentional premature breakage of the connections 116. The relieving elevations 142 are preferably arranged at a distance from the closure cap 108 in the longitudinal direction in such a way that, when this distance 144 is overcome, for example by application of force, the connections 116 remain intact and intact.

Fig. 8b shows a plan view of a screw cap 100 according to the invention Fig. 8a along the line C-C '. In addition to the laterally deflectable cam-like projections 118, the tamper-evident strip 114 has further cam-like projections 146, which are arranged diametrically opposite one another and are laterally substantially free of deflection when force is applied during closing. For these further cam-like projections 146, which are fixedly arranged on the tamper evident strip 114 inside, no corresponding recesses 130 are arranged directly adjacent. Such cam-like projections 146 prove to be advantageous, since the tamper-evident strip 114 thereby underneath the Federal (not shown) is held and lateral guidance over the federal government is thus prevented.

9 shows a diagram of the torque curve J during the closure of a screw cap 100 according to the invention and of a screw cap 2 known from the prior art. The abscissa indicates the time course of the measuring time in seconds, whereas the ordinate represents the resulting force in Ncm. Curve P shows the torque curve of the torque for a screw cap known from the prior art with normal tamper evident strips. The curve P increases steadily from the beginning of the closure, to about 65 Ncm, and then drops abruptly. This curve corresponds to the transfer of the cam-like projections over the collar. Once the covenant has been crossed, the force application ends abruptly and the curve drops significantly.

In contrast, the curve T shows an almost constant application of force during the entire measuring time. According to the invention can be achieved by the screw closure according to the invention, the force acting during closing torque J and thus the application of force to the connections during the transfer of the cam-like projections on the collar, a reduction in the application of force of up to 20%, preferably up to 40%, compared to the acting application of force in known closures of the prior art.

All disclosed in the application documents features are claimed as essential to the invention, provided they are new individually or in combination over the prior art. <B> LIST OF REFERENCES </ b> 2 Screw cap (prior art) 4 outside 6 Internal cross-section 8th cap 10 inner thread 14 Tamper strip 16 Connections / breaking points 18 cam-like projection 20 container 22 external thread 24 Federation 100 Screw closure according to the invention 104 outside 106 Internal cross-section 108 cap 108a outer cap 108b inner cap 110 inner thread 112 receiving thread 114 Tamper strip 116 Connections / breaking points 118 cam-like projection 130 recess 132 left half of the closure 134 right half of the closure 136 first opening section 138 second opening section 140 third opening section 142 survey 144 distance 146 another cam-like projection L longitudinal axis I longitudinal direction e level P Curve curve torque (prior art) T Curve curve Torque according to the invention J torque

Claims (10)

Screw closure (100) of resiliently elastic material, in particular of plastic, for containers (20), comprising an internal thread (110) and at least one tamper-evident strip (114) which is at least partially connected to the underside of the screw cap (100), wherein the at least one tamper-evident strip (114) comprises at least one inner, cam-like projection (118) which, when the closure is completely closed, engages under a collar (24) of a container (20)
characterized in that
the tamper-evident strip (114) has at least one recess (130) on the circumference, by means of which the at least one cam-like projection (118) is at least partially feasible when force is applied during closing. Screw cap according to claim 1,
characterized in that
the at least one cam-like projection (118) being able to be guided at least partially radially outwards by the at least one recess (130) during the closing, wherein the recess (130) is expandable upon application of force during the closing. Screw cap according to claim 1 or 2,
characterized in that
a wall portion (W) of the tamper-evident strip (114) disposed between two communicating opening portions (136, 140) is at the same time a wall portion (W) of an inner cam-like projection (118). Screw cap according to claim 3,
characterized in that
the at least one recess (130) of the tamper-evident strip (114) has at least two interconnected opening sections (136, 138), preferably three interconnected opening sections (136, 138, 140). Screw cap according to claim 4,
characterized in that
a first leg-shaped opening portion (136) and a third leg-shaped opening portion (140) are in continuous communication with each other via a second opening portion (138) and preferably together have a U-shape. Screw cap according to at least one of the preceding claims,
characterized in that
the at least one tamper-evident strip (114) preferably comprises 2-12 cam-like projections (118) arranged radially inwards with respect to a longitudinal axis (L). Screw cap according to claim 6,
characterized in that
the cam-like projections (118) along the longitudinal axis (L) have a decreasing from top to bottom cross-sectional area, which is preferably arranged perpendicular to the longitudinal axis (L). Screw cap according to claim 7,
characterized in that
a preferably perpendicular to the longitudinal axis (L) arranged plane (E) by the cross-sectional surfaces, each having the largest, radial extent perpendicular to the longitudinal axis (L), is clamped. Screw cap according to claim 8,
characterized in that
at least one leg-shaped opening portion (136, 140) in its extension along the longitudinal axis (L) the plane spanned (E) in a predeterminable Cross-sectional area intersects and / or arranged in a predetermined cross-sectional area within this plane (E), wherein the cross-sectional area of the leg-shaped opening portion (136, 140) is preferably arranged perpendicular to the longitudinal axis (L). Screw closure according to at least one of the preceding claims, characterized in that
this has a substantially constant torque (J) during the closure during the application of force.

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