DK2639179T3 - Strap screw closure secured against tampering - Google Patents

Description

Description [0001] The invention relates to a screw closure of spring-elastic material, in particular of plastic, for containers, comprising at least one internal thread and at least one originality-guarantee strip which is connected at least partially to the screw closure on the underside thereof, wherein the at least one originality-guarantee strip comprises at least one inner camlike protrusion which, when the closure is fully closed, engages below a collar of the container.

[0002] From the prior art screw closures are known which have an originality-guarantee strip which is used for anti-counterfeiting of for example drugs or beverages, in order to indicate the original closure status after the filling process by the manufacturer.

[0003] In known closures from the prior art originality-guarantee strips are used which are connected to the closure on the underside thereof by means of predetermined breaking points. For fixing of the originality-guarantee strip to the containers, regardless of the starting material, such as for example plastic or glass, the containers have a generally continuous peripheral, annular collar below the container thread. If, after filling, a container is closed by such known closures, during screwing the annular collar causes a widening of the originality-guarantee strip arranged on the underside of the closure, since inner protrusions must likewise be guided over this collar. In this way an increased torque acts in particular on the predetermined breaking points and thus frequently already during the manufacturer's filling process leads to damage or to a breakage of the predetermined breaking points, so that the originality-guarantee function of the closure is lost und the corresponding containers must be separated out.

[0004] In this case a collar is understood to be an annular protrusion which is arranged on the periphery generally below the external thread of the container. The collar serves for fixing of the at least one originality-guarantee strip or also for guiding of the container during the filling process.

[0005] US2001/0015341 discloses a closure according to the preamble to claim 1. Consequently the object of the present invention is to provide a screw closure which, during the screwing, discharges the applied force in such a way that the originality-guarantee function remains fully intact after the closure is completely closed. Furthermore the object of the present invention is to provide a cost-effective screw closure with an originality-guarantee function, regardless of the containers to be closed as well as the transfer rings arranged thereon.

[0006] This object is achieved according to the features of claim 1. Further advantageous embodiments are disclosed the subordinate claims.

[0007] According to the invention the screw closure has at least one originality-guarantee strip which is formed in one piece or also in multiple parts. Depending upon the method of production the originality-guarantee strip is constructed for example as a band, in one piece. Furthermore it is conceivable that the originality-guarantee strip is constructed in multiple parts and in addition to the link points to the closure cap has further link points, by means of which for example the individual parts of the originality-guarantee strip are releasably connected to one another.

[0008] A significant point of the invention resides in the fact that the at least one originality-guarantee strip on the periphery has at least one opening through which, on force application during closure, the at least one cam-like protrusion can pass at least in part, This is particularly advantageous since during the closure process according to the invention, in contrast to the known screw closures according to the prior art, the originality-guarantee strip can be passed over the collar almost without expansion, preferably without expansion. The at least one inner cam-like protrusion is upon force application during the screwing can be passed at least in part through an opening in the originality-guarantee strip, so that the force acting on the cam-like protrusion can be discharged by the its outwardly directed deflection or pivoting movement due to the design of the originality-guarantee strip according to the invention.

[0009] During the screwing, the inner cam-like protrusions are guided against the collar of the container and thus are subjected to a force by the screw closure according to the invention. This application of force to the cam-like protrusions through the advantageous arrangement of corresponding openings causes said projections to be deflected outwards, at least partially, through the opening arranged adjacent thereto. Thus the applied force is dissipated. At the end of the force application, that is to say when the at least one cam-like protrusion is passed over the collar, the cam-like protrusion is returned again to its starting position by a restoring force and thus engages below the collar, wherein all links remain intact. Thus according to the invention the originality-guarantee strip is guided over the collar almost without expansion and/or tension, preferably without expansion and/or tension, since the at least one cam-like inner protrusion can be passed at least partially through the at least one opening and thus discharges the resulting force.

[0010] According to the invention the links between the originality-guarantee strip and the screw closure cap are configured as predetermined breaking points, wherein the links preferably have a conical geometry in the longitudinal direction. This is advantageous since it causes a predefinable tearing of the links from the originality-guarantee strip or the screw closure cap. This enables tearing off of virtually all links, preferably all links at the tapered region of the contact surface.

[0011] On the respective common contact surface with the originality-guarantee strip the links are preferably configured to be broader than on the corresponding common contact surface with the screw closure cap. Thus the links taper conically in the direction of the screw closure cap.

[0012] Furthermore it is conceivable for the links to taper in the longitudinal direction towards the originality-guarantee strip in order to enable a predefinable tearing. In the simplest case all links have the same configuration and all taper in the longitudinal direction conically towards the originality-guarantee strip or the screw cap closure. However, it is also conceivable for the links to have different geometries and for example to have a conical taper alternately towards the originality-guarantee strip and the screw cap closure.

[0013] The originality-guarantee strip preferably has at least one additional protuberance, preferably 2 to 12 protuberances, which extend in the longitudinal direction towards the closure cap. When the screw closure according to the invention is free of force application, these protuberances have no common contact surface with the closure cap and thus are spaced apart therefrom. These additional protuberances prove advantageous, since they give rise to a relief of strain on the links and premature, unwanted breaking of the links is prevented. According to the invention these additional protuberances are fixedly arranged on the originality-guarantee strip.

[0014] The arrangement of the additional protuberances takes place depending upon the size of the screw closure according to the invention. In the case of screw closures for containers with a small opening diameter it is for example conceivable for such an additional load- relieving protuberance to be arranged in each case on the circumference between two links. In the case of larger opening diameters it is also conceivable for a plurality of additional strain-relieving protuberances to be provided on the circumference between two links.

[0015] According to the invention the additional load-relieving protuberances in the longitudinal direction of the screw closure according to the invention are configured to be shorter than the links which connect the originality-guarantee strip and the screw closure cap releasably to one another.

[0016] Furthermore it is conceivable for the originality-guarantee strip to have at least one cam-like protrusion, preferably two to four further cam-like protrusions, which are arranged substantially without deflection upon force application. In each case two of these further camlike protrusions are preferably arranged diametrically opposite one another and engage below the collar of the container in the closed state. These further cam-like protrusions are fixedly arranged internally on the originality-guarantee strip and support it laterally. This is advantageous, since upon opening of the screw closure these supporting cam-like protrusions hold and support the originality-guarantee strip below the collar, so that the originality-guarantee strip cannot be guided upwards over the collar.

[0017] In a further embodiment according to the invention, on force application during closure, the at least one cam-like protrusion can pass at least partially radially to the outside through the at least one opening, wherein the opening is configured to be expandable on force application during closure. This is advantageous since thus the through the force acting due to the torque resulting upon closure can be led off at least partially radially to the outside and the links or predetermined breaking points remain substantially free of force application. Thus an originality-guarantee function is already ensured during the closure, since the links remain permanently intact before the container is opened for the first time.

[0018] A wall region of the originality-guarantee strip which is arranged between two mutually connected orifice portions is simultaneously a wall region of the inner cam-like protrusion. This is advantageous since thus the inner cam-like protrusion, which is fixedly arranged on the originality-guarantee strip, has a common wall surface therewith. In particular this is advantageous according to the invention, since during the closing the collar arranged circumferentially below the container thread applies a force to the inner cam-like protrusion of the originality-guarantee strip in such a way that the strip can be guided outwards through the opening and the originality-guarantee strip is dimensionally stable, tension-free and/or expansion-free and is not deformed or over-stretched. Due to this passage of the inner camlike protrusion the force resulting from the torque is deflected according to the invention, so that the links which are configured as predetermined breaking points remain permanently intact during closing.

[0019] In a further advantageous embodiment the at least one opening of the originality-guarantee strip has at least two mutually connected orifice portions, preferably three mutually connected orifice portions. This is advantageous since thus the opening cross-section of the opening can be configured differently depending upon the application. According to the invention the screw closure has the same number of openings as inner cam-like protrusions. The orifice portions of the opening are predefined depending upon the geometric configuration of the inner cam-like protrusions, and the orifice portions are preferably configured to be leglike. If there are two mutually connected orifice portions, they can be oriented for example so as to be pointed upwards or downwards in the longitudinal direction of the screw closure according to the invention. In this case the corresponding cam-like protrusion is likewise preferably configured as a pyramid. Furthermore, a round, semicircular opening is also conceivable, which is concave towards the top in the longitudinal direction or towards the bottom in longitudinal direction of the screw closure, wherein the cam-like protrusion in this case is preferably ellipsoid.

[0020] In this case the longitudinal direction should be understood to be the spatial extension in which the screw closure according to the invention has its greatest extension. Moreover, this longitudinal direction is determined by a longitudinal axis which is preferably configured as a central axis about which the screw closure according to the invention is preferably rotationally symmetrical.

[0021] In a further embodiment according to the invention a first leg-like orifice portion and a third leg-like orifice portion are mutually continuously connected and together have a U shape. This is advantageous if the inner cam-like protrusion has a square or rectangular cross-section, so that on force application during screwing the protrusion can be passed at least partially through the U-shaped opening. The U shape may be open in longitudinal direction towards the top or also towards the bottom. This U shape causes the restoring force of the at least one cam-like protrusion, so that when the force application is ended the protrusion can be passed back through the opening again into its starting position and engages completely under the collar. Of course this shape is not limiting, but can be extended in any way. The geometric configuration of the opening and thus also of the orifice portions is adapted to the respective inner cam-like protrusion, so that the protrusion can be passed at least partially, preferably completely, through the corresponding opening during the application of force to the closure.

[0022] In a further advantageous embodiment of the invention the at least one originality-guarantee strip preferably comprises 2-12 cam-like protrusions which are arranged radially on the inside relative to a longitudinal axis. According to the invention the cam-like protrusions are arranged diametrically opposite one another. Depending upon geometric formation the cam-like protrusions have a constant spacing relative to one another or also a varying spacing.

[0023] Depending upon the container to be closed, the cam-like protrusions can be in the shape of cubes, pyramids, spherical segments or also in any other polygonal three-dimensional figuration. According to the invention the protrusions are configured in such a way that with complete closure the collar is engaged from below and that the collar fixes the cam-like protrusions in a first screwing operation in such a way that the predetermined breaking points between the closure cap and the originality-guarantee strip tear and the originality-guarantee strip remains below the collar, whilst the closure cap is removable. Thus the cam-like protrusions preferably have a depth which corresponds to that of the collar.

[0024] In a further advantageous embodiment the cam-like inner protrusions have a cross-section face which decreases from top to bottom along the longitudinal axis and is preferably arranged perpendicular to the longitudinal axis. This is advantageous since thus the cam-like protrusions can be guided over the collar with simultaneous deflection by the corresponding openings. In this case the deflection takes place reversibly in this case, so that a sufficient restoring force guides the cam-like protrusions back into their starting position again after deflection by the annular collar and the cam-like protrusions engage completely below the collar.

[0025] In a further advantageous embodiment a plane (E) preferably arranged perpendicular is spanned by the cross-section faces which each have the largest radial extension perpendicular to the longitudinal axis. This is advantageous since depending upon the arrangement of this plane in the longitudinal direction the restoring force of the cam-like protrusions is predefinable and adjustable.

[0026] In a further advantageous embodiment at least one leg-like orifice portion in its extension along the longitudinal axis intersects the spanned plane in a predefinable cross-section face and/or is arranged in a predefinable cross-section face within this plane, wherein the cross-section face of the leg-like orifice portion is preferably arranged perpendicular to the longitudinal axis.

[0027] Thus any closure cap with the technical feature according to the invention of the originality-guarantee strip forms a screw closure according to the invention. Thus conventional screw closures or also screw closures with a childproof function have a reliable originality-guarantee function according to the invention.

[0028] In a further advantageous embodiment, on force application this has a substantially constant torque during closure. This is advantageous since thus during the closing no additional force acts on the links/predetermined breaking points and breaks and severs them. According to the invention the substantially constant torque leads to an intact originality-guarantee function during closing of the closure according to the invention.

[0029] The screw closure according to the invention is advantageously formed in one piece constructed and can preferably be produced from plastic by means of known methods. According to the invention the screw closure is made of plastics, plastic mixtures, composite materials such as for example fibre-reinforced plastics, thermoplastic plastics, thermosetting plastics, polyethylene, polypropylene and/or a mixture thereof.

[0030] Further advantageous embodiments are apparent from the appended drawings.

[0031] In the drawing:

Figure 1 shows a screw closure which is known from the prior art;

Figure 2 shows a screw closure according to the invention;

Figure 3 shows a schematic cross-section of a screw closure according to the invention;

Figure 4a shows a schematic plan view of a part of a screw closure according to the invention;

Figure 4b shows a schematic cross-sectional detail of a screw closure according to the invention;

Figure 4c shows a schematic illustration of the deflection;

Figure 5 shows a three-dimensional representation of a screw closure according to the invention;

Figure 6 shows a further embodiment of a screw closure according to the invention;

Figure 7 shows a three-dimensional representation of a further embodiment of a screw closure according to the invention;

Figure 8a shows a further embodiment of a screw closure according to the invention;

Figure 8b shows a plan view of the screw closure according to the invention illustrated in Figure 8a; and

Figure 9 shows a diagram relating to the applied torque.

[0032] A screw closure 2 which is known from the prior art is illustrated in Figure 1, wherein the left side corresponds to an outer face 4 und the right side corresponds to an inner cross-section 6. The known screw closure 2 has a closure cap 8 with an internal thread 10. In the longitudinal direction I an originality-guarantee strip 14 is arranged on the underside of the closure cap 8, which are releasably connected to the closure cap by means of a plurality of links 16. The originality-guarantee strip 14 has a plurality of inner protrusions 18. If such a known screw closure 2 is used for closing a container 20, during closing the collar 24 of the container 20 causes an expansion of the originality-guarantee strip 14, since the inner protrusions 18 should be passed over the collar 24 for complete closing. While the protrusions 18 are guided over the collar 24 an expansion of the originality-guarantee strip 14 takes place, so that a resistance is caused which leads to an increased torque during the screwing. The force resulting from the increased torque is led off into the links 16 which regularly tear and are separated under this application of force. Even a conical geometry of the collar 24 causes an increase in the torque und a separation of the links 16. Thus an originality-guarantee function can no longer be ensured.

[0033] Figure 2 shows a screw closure 100 according to the invention, wherein the outer face 104 is shown on the left side and a partial internal cross-section 106 is shown on the right side. The originality-guarantee strip 114 is arranged on the closure cap 108 by means of links 116. According to the invention the originality-guarantee strip 114 has at least one opening 130 through which, on force application, an inner, cam-like protrusion 118 arranged thereon can pass at least in part. In this embodiment a plurality of openings 130 are provided, which in each case are configured in a U shape.

[0034] A schematic cross-section of a screw closure 100 according to the invention is illustrated in Figure 3, wherein the same reference numerals are not described again. The screw closure 100 also has, in addition to the internal thread 108, a receiving thread 112 onto which for example cannulas or syringes (not shown) can be screwed or on which preferably dosing inserts (not shown) can be arranged for removing product from the container. Naturally this is only for illustration. The screw closure 100 according to the invention can also be designed without such a receiving thread 112, in order for example to combine further application aids or sealing elements with the screw cap according to the invention.

[0035] Figure 4a shows a plan view of the originality-guarantee strip 114 along the sectional line B-B in Figure 3, which is perpendicular to the longitudinal axis L. The originality-guarantee strip 114 is preferably constructed in one piece. The originality-guarantee strip 114 advantageously comprises at least one, preferably 2 to 12 and most preferably 4 to 8 inner, cam-like protrusions 118, wherein in each case two cam-like protrusions 118 are arranged diametrically opposite one another. Furthermore the cam-like protrusions 118 are oriented towards the longitudinal axis L. This is advantageous, since thus in the production process during demoulding of the tool a uniform expansion of the screw closure 100 according to the invention takes place and furthermore a uniform, firm seat of the cam-like protrusions 118 under the collar 24 (not shown) is provided.

[0036] The originality-guarantee strip 114 has the same number of openings 130 corresponding to the number of cam-like protrusions 118. According to the invention an opening 130 makes it possible for the inner cam-like protrusion 118 arranged directly adjacent thereto, upon force application, to perform an outwardly directed deflection movement during guiding of the cam-like protrusion 118 over the collar 24 (not shown). In the embodiment shown in Figure 4a, six inner cam-like protrusions 118 are arranged directly adjacent to six correspondingly openings 130 and have a common wall region W. In this case the orientation of the openings 130 is for example radial. The openings 130 of a left closure half 132 as well as a right closure half 134 are advantageously arranged parallel to one another.

[0037] The longitudinal section taken along the line A-A' is illustrated in Figure 4b. A part of a screw closure 100 according to the invention is shown in detail here. References which are the same as previously are not explained again. The originality-guarantee strip 114 has an example of an opening 130 which is configured in a U shape. The U shape is produced by a first orifice portion 136, which is continuously connected by means of a second orifice portion 138 to a third orifice portion 140. An inner cam-like protrusion 118 is arranged directly adjacent to this opening 130 and has a common wall region W therewith. According to the invention the three orifice portions 136, 138, 140 of each opening 130 have a comparable geometry. However, it is also conceivable that the individual orifice portions 136, 138, 140 different geometric dimensions and thus for example have different widths or heights. [0038] As shown in Figure 4b, the inner cam-like protrusions 118 have a cross-section which decreases from top to bottom, so that the greatest cross-section is also arranged below the second orifice portion 138. According to the invention the outline of each cam-like protrusion 118 in the longitudinal direction L describes a bent curve preferably with a maximum curvature with the greatest radial extension of each cam-like protrusion 118. These maximum curvatures span a plane E which is arranged perpendicular to the longitudinal axis L. According to the invention at least one orifice portion 136 or 140 in its extension along the longitudinal axis L intersects the spanned plane E in a predefinable cross-section face and/or is arranged with a predefinable cross-section face within this plane E In the simplest case both orifice portions 136, 140 penetrate the plane E and end below this plane E. This is advantageous since the deflection is enabled in this way so that the cam-like protrusion 118 during guiding over the collar 24 (not shown) can be deflected, preferably sprung, outwards and after ending of the force application can be returned, preferably can be sprung back, again into the starting position, and the collar 24 (not shown) is completely engaged from below. The orifice portions 136, 140 advantageously end just below the plane E, preferably 0.1 to 1.0 mm below the plane E.

[0039] Figure 4e shows a schematic illustration of the spring mechanism, while an inner protrusion 118 of a screw closure 100 according to the invention is guided over the collar 24 of a container, wherein the opening 130 is constructed in a U shape, as illustrated in Figure 4b. Thus, during screwing, the cam-like protrusion 118 is guided in the longitudinal direction 1 towards the collar 24. The opening 130 enables a deflection of the cam-like protrusion 118 outwards through the opening 130, so that the common wall region W undergoes a lateral deflection. The lateral deflection is determined by the remaining cross-section of the cam-like protrusion 118. According to the invention the cam-like protrusions 118 have the same cross-section in each case, so that a synchronous discharge of force is produced during the screwing. After the application of force to the cam-like protrusion is ended, that is to say after the guiding over the collar 24, the cam-like protrusion 118 is returned again to its starting position due to the geometrically imposed restoring capability.

[0040] Figure 5 shows a three-dimensional view of a screw closure 100 according to the invention, of which the outer face 104 is preferably grooved in order to enable improved gripping during the screwing on or screwing together.

[0041] In Figure 6 a further embodiment of a screw closure 100 according to the invention is shown, wherein the screw closure here is designed as a childproof screw closure 100. On the left side the preferably grooved outer face 104 of the illustrated childproof screw closure 100 according to the invention, whereas on the right side an internal cross-section 106 is shown. A childproof screw closure 100 according to the invention has an external closure cap 108a as well as an inner closure cap 108b, wherein the inner closure cap 108b has an internal thread 110. The at least one originality-guarantee strip 114 is arranged on the lower end of the inner closure cap 108b by means of a plurality of links 116. The originality-guarantee strip 114 preferably comprises a plurality of inner cam-like protrusions 118 which are passed at least partially, preferably completely, through the respective openings 130. The openings 130, the orifice portions thereof, as well as the functionality thereof, corresponding to the embodiment in Figures 2 to 5 described above in detail, are applicable analogously to this childproof embodiment of the screw closure 200 according to the invention. In Figure 7 a corresponding childproof screw closure 100 according to the invention is illustrated three-dimensionally.

[0042] Figure 8a shows a cross-sectional portion of a further embodiment of a screw closure 100 according to the invention, wherein components which are the same as in the previous embodiments are not explained again. The illustrated cross-sectional portion shows a further construction according to the invention of the originality-guarantee strip 114 of the screw closure according to the invention and thus can be used for any screw closures with an originality-guarantee strip.

[0043] In this case the originality-guarantee strip 114 is releasably connected by means of links 116 to the closure cap 108, wherein the links 116 taper conically in the longitudinal direction I towards the closure cap 108. This is advantageous since thus, upon force application while being screwed on, the links preferably break on the tapered common contact surfaces with the closure cap 108. Of course it is likewise conceivable that the links 116 taper towards the originality-guarantee strip 114.

[0044] Furthermore the originality-guarantee strip 114 has load-relieving protuberances 142 which are fixedly arranged on the originality-guarantee strip 114 and extend in the longitudinal direction I towards the closure cap 108, but do not have a common contact surface therewith and are spaced apart therefrom in the longitudinal direction I. Such protuberances 142 prove advantageous, since upon slight force application to the closure cap 108 these protuberances support the closure cap relative to the originality-guarantee strip 114 and prevent an unwanted premature breaking the links 116. The load-relieving protuberances 142 are preferably spaced apart from the closure cap 108 in the longitudinal direction in such a way that, when this spacing 144 is neutralised for example by force application, the links 116 remain undamaged and intact.

[0045] Figure 8b shows a plan view of a screw closure 100 according to the invention along the line C-C in Figure 8a. In addition to the cam-like protrusions 118 which can be deflected laterally, the originality-guarantee strip 114 has further cam-like protrusions 146 which are arranged diametrically opposite one another and upon force application are substantially deflection-free laterally during the closure. No corresponding openings 130 are arranged directly adjacent to these further cam-like protrusions 146, which are fixedly arranged internally on the originality-guarantee strip 114. Such cam-like protrusions 146 prove advantageous, since during the screwing they hold the originality-guarantee strip 114 below the collar (not shown) and thus lateral guiding over the collar is prevented.

[0046] Figure 9 shows a diagram of the torque progression J during the closure of a screw closure 100 according to the invention as well as a screw closure 2 known from the prior art. In this case the abscissa shows the time progression in seconds, whereas the ordinate shows the resulting force in Ncm. The curve P shows the force progression of the torque for a screw closure which is known from the prior art with a normal originality-guarantee strip. The curve P rises constantly from the start of the closing, up to approximately 65 Ncm, in order then to drop abruptly. This curve corresponds to the passage of the cam-like protrusions over the collar. If the collar is crossed, the force application also ends suddenly and the curve drops significantly.

[0047] In contrast to this, the curve T shows virtually constant force application during the entire measurement time. According to the invention the torque J acting during the closure and thus also the force application to the links during the passage of the cam-like protrusions over the collar, a reduction of the force application of up to 20%, preferably up to 40%, by comparison with the acting force application can be achieved by the screw closure according to the invention in closures which are known from the prior art.

List of references 2 Screw closure (prior art) 4 outer face 6 internal cross-section 8 closure cap 10 internal thread 14 originality-guarantee strip 16 links/predetermined breaking points 18 cam-like protrusion 20 container 22 external thread 24 collar 100 screw closure according to the invention 104 outer face 106 internal cross-section 108 closure cap 108a outer closure cap 108b inner closure cap 110 internal thread 112 receiving thread 114 originality-guarantee strip 116 links/predetermined breaking points 118 cam-like protrusion 130 opening 132 left closure half 134 right closure half 136 first orifice portion 138 second orifice portion 140 third orifice portion 192 protuberance 144 spacing 146 further cam-like protrusion L longitudinal axis I longitudinal direction E plane P torque curve (prior art) T torque curve (closure according to the invention) J torque

Claims (10)

A screw closure (100) of resilient elastic material, especially of plastic, for containers (20), comprising an internal thread (110) and at least one strip (114) secured against manipulation, which is at least partially on the underside of the screw closure (100) ) is associated therewith, wherein the at least one strip (114) secured against manipulation comprises at least an inner projection (118) which, when fully closed, engages under a collar (24) of a container (20), wherein the strip (114) secured against manipulation has at least one recess (130) through which the at least one projection (118) can be passed through at least partially through the force of the closure, characterized in that the at least one projection (118) is cam-like and that an outer wall region (W) of the strip secured to originality (114) is at the same time an outer wall region (W) of the at least internally cam-like projection (118). Screw closure according to claim 1, characterized in that the at least one cam-like protrusion (118) can, at least partially, be radially extended through the at least one recess (130), in which the recess (130) is formed, so that it can be extended by the force of a force during the closure. Screw closure according to claim 1 or 2, characterized in that the wall area (W) of the strip secured against manipulation, which is at the same time a wall area of an inner cam-like projection, is arranged between two opening sections (136, 140) which are connected with each other and forming the recess (130). Screw closure according to claim 3, characterized in that the at least one recess (130) of the strip (114) secured against manipulation has three opening sections (136, 138, 140) which are connected to each other. Screw closure according to claim 4, characterized in that a first leg-shaped opening section (136) and a third leg-shaped opening section (140) via a second opening section (138) are in continuous contact with each other and preferably together have a U-shape. Screw closure according to at least one of the preceding claims, characterized in that the at least one strip (114) secured against manipulation preferably has 2-12 cam-like projections (118) arranged radially inwards relative to a longitudinal axis (L). Screw closure according to claim 6, characterized in that the cam-like projections (118) along the longitudinal axis (L) have a downwardly sloping cross-sectional surface, which is preferably perpendicular to the longitudinal axis. Screw closure according to claim 7, characterized in that a plane (D) arranged preferably perpendicular to the longitudinal axis (L) is tensioned by means of the cross-sectional surfaces, each having the greatest radial extent. Screw closure according to claim 8, characterized in that at least one leg-shaped opening section (136, 140) intersects along the longitudinal axis (L) the clamped plane (E) in a predetermined cross-sectional surface and / or in a predetermined cross-sectional surface. for this plane (E), wherein the cross-sectional surface of the bone-shaped opening section (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 it has a substantially constant torque (J) during closing, under force effect.