EP3172140B1 - Screw closure system - Google Patents

Screw closure system Download PDF

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Publication number
EP3172140B1
EP3172140B1 EP15737963.7A EP15737963A EP3172140B1 EP 3172140 B1 EP3172140 B1 EP 3172140B1 EP 15737963 A EP15737963 A EP 15737963A EP 3172140 B1 EP3172140 B1 EP 3172140B1
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EP
European Patent Office
Prior art keywords
closure
latching
crosspiece
latching element
closure element
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Not-in-force
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EP15737963.7A
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German (de)
French (fr)
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EP3172140A1 (en
Inventor
Klaus-Peter Stange
Cristin Wirth
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Beiersdorf AG
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Beiersdorf AG
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Publication of EP3172140A1 publication Critical patent/EP3172140A1/en
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Publication of EP3172140B1 publication Critical patent/EP3172140B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0471—Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap

Definitions

  • the invention relates to a rotary closure system having a first closure element, which is arranged rotatably relative to a second closure element and halterbar in at least one oriented position, wherein at least one latching element is used to form a reverse rotation, that is fixed to one of the closure elements and thus with at least one associated Locking cam corresponds to that the first closure element relative to the second closure element in the at least one oriented position is releasably supported and in which the at least one locking element is elastically fixed via a web on a closure element, so that the locking element is swingable.
  • screw caps for containers or volumes of various kinds are used in order to close these against the contents largely or completely tight.
  • screw caps are formed as a rotary closure systems consisting of a flange and a screw cap and are designed as resealable systems.
  • closure or screw caps are often designed to be removable after opening the closure system.
  • the flange usually has a shoulder portion which is intended to be fixed to the actual container.
  • a container may be integrally formed with the flange.
  • the container material and the flange material are the same and the flange is an integral part of the container.
  • an area adjoining the shoulder of the flange is designed as a pouring opening for the container interior and provided with a thread which corresponds with the screw cap in such a way that the pouring opening can be closed by the screw cap by rotational movements of the screw cap.
  • the screw cap is a first closure element in this system. Due to the fact that threads usually can not perform a sealing function, an axial force generated in the thread and by a rotational movement is used to press the fferkappen ground against the front end of the pouring of the flange to press and thereby achieve a seal.
  • the thread can be designed as external thread either on the flange or on the screw cap.
  • the screw cap it is almost always desirable for the screw cap to reliably close the container under all storage, transportation and handling conditions. In general, it is required that the closure function is hermetically sealed. This also applies to situations in which received by the container different substances with flowable or pourable properties are, or a container internal pressure, which is above the atmospheric pressure, at least not excluded.
  • the materials of the closure system are matched to one another such that a sufficiently high static friction and a breakaway torque of the screw closure elements consisting of the thread on the pouring opening and the thread on the closure cap is present.
  • the thread design is realized in such a way that both self-locking and sufficient closure forces are achieved.
  • the thread pitch is a primary influencing factor for this.
  • the reliable closure function opposite situation may exist when the cap is rotated by externally applied torques in the opening direction and this is not the result of a deliberate or targeted handling process. Also, turning back may be undesirable to prevent unlawful product removal.
  • anti-rotation locks are used in rotary closure systems in order to maintain the rotational closure position of the closure cap and the shutter forces generated thereby also in situations in which external acting torques in the opening direction, which are not the result of a deliberate or targeted handling operation.
  • Known pollutantsréen are often formed by locking elements and locking cams, which are defined in a corresponding manner in each case on a closure system element. It is customary to arrange these anti-rotation locks adjacent to the thread and directly on the usually cylindrical pour opening or the cap as an integral part. This one-piece design supports injection molding, especially when using plastic materials. Locks equipped with such a reverse lock are only limited in terms of machine operation or do not sufficiently prevent unintentional unscrewing.
  • the contact points or fixing areas of the integral latching elements on the respective closure element are, for example, trapezoidal geometric
  • the reverse rotation lock has a latching element and closure elements.
  • the locking element is mounted elastically movable.
  • a reverse rotation is described in which the locking element is coupled via a web with a closure element
  • the web has in this case a smaller cross section than the locking element.
  • FR 2 572 369 A1 From the FR 2 572 369 A1 is also a reverse rotation with a web known, the web is used for an elastic support of the locking element. It is an object of the invention to provide a reverse rotation for rotary or screw caps such that prevents inadvertent opening of the screw, allows a defined opening force and the machinability is supported.
  • this object is achieved in that the web extends radially to the closure element, that the web is designed geometrically such that the elastic fixing of at least one locking element is supported on a closure element, that the web to form a hinge-like connection between the locking element and the screw cap is formed with a reduced cross section relative to the latching element, that the latching element has at least one chamfer in a direction of movement and that the latching element corresponds with the associated latching cam, that the latching element snaps behind the latching cam in the closed position of the first closure element and that the latching element is designed wing-like and that the web between the respective closure element and the locking element has a radii-like surface contour.
  • the teaching of the invention recognizes that due to an elastic fixing of the at least one locking element by a suitable geometric or material engineering design of the contact point or the Festlegungs Kunststoffes on the respective closure element, the locking element is swingable.
  • the partially elastic-plastic deformation of the locking element and thus also the wear can be reduced.
  • the force required for the opening and closing movements can be influenced by influencing the Setting the degree of elasticity, on the other hand, a reduction of the required opening and closing forces is counteracted by the wear-reduced interaction of locking element and locking cams.
  • the determination of the locking element is such that in addition in the end position, i. in the closed position of the first closure element, the swingable locking element snaps behind the locking cam.
  • the snap-in process can be designed such that an acoustic and / or haptic feedback is sent to the user.
  • the acoustic feedback can be realized by a click sound.
  • the haptic feedback can be realized by an increased closure force along a part of the rotational movement.
  • the elastic fixing of the at least one latching element on the respective closure element by a suitable geometric design of the contact point or the Festlegungs Kunststoffes is realized in that the Festlegungs Kunststoff or the contact point is formed by a radially extending to the closure element web.
  • the web is formed with a relative to the locking element reduced cross-section, which supports an elastic component behavior.
  • the outer contour of the web between the respective closure element and the locking element can be configured radii similar, so that the local elasticity of the web is supported by a targeted inner stress concentration due to notch effect.
  • the elastic fixing of the at least one latching element on the respective closure element by a suitable choice of material or a material combination of the contact point or the Festlegungs Kunststoffes is alternatively or cumulatively realized in various embodiments that the Festschreibs Quarry or the contact point at least partially by an elastic material such as plastic, For example, PE, PP, PET, PLA, PEF, rubber or a spring steel is formed.
  • an elastic material such as plastic, For example, PE, PP, PET, PLA, PEF, rubber or a spring steel is formed.
  • the locking element is made of a different material than the closure element is formed.
  • At least one of the geometric configurations as well as at least one of the proposed material specification or even a combination of these properties can be used.
  • the invention recognizes that due to an asymmetrical design or an asymmetrical fixing of the at least one latching element on the respective closure element, different high forces for opening or closing the screw closure are both realizable and adjustable. Can be adjusted, the respective forces for opening and closing and by bevels on the locking element in the respective direction of movement.
  • FIG. 1 shows a plan view of a section of the at least one latching element (11) on the screw cap (10).
  • the at least one latching element (11) also be fixed to the second closure element (20) and the at least one latching cam (24) can be arranged on the first closure element (10).
  • the fixing area (13) is designed trapezoidal and supports injection molding, especially when using plastic materials.
  • the at least one latching element (11) corresponds to the at least one latching cam (24) and is partly and / or elastically plastically deformed during the opening or closing movement.
  • FIG. 2 shows a perspective view, a plan view and a detail A of the closure system (1) according to the invention.
  • the plan view depicts the first closure element in the form of a screw cap (10).
  • the screw cap (10) is provided with an internal thread (12) and designed such that the internal thread (12) corresponds to the external thread (22) of the second closure element.
  • the second closure system is designed as a flange (20) and has a pouring aid (21). On the flange (20), the external thread (22) is arranged.
  • an external thread can be provided on the screw cap (10), which corresponds to an internal thread of the pouring aid (21).
  • the at least one latching element (11) is fixed to the screw cap (10) by a fixing region (13) and formed by a reduced cross-section with respect to the latching element (11) so that an elastic component behavior is supported.
  • the outer contour of the web-shaped fixing region (13) is designed with a radii-like surface contour (14) between the screw cap (10) and the latching element (11), so that a targeted internal stress concentration due to notch effect supports the local elasticity of the web (13).
  • the at least one locking element (11) is not centric in the illustrated embodiment by the fixing area (13), but asymmetrically fixed to the screw cap (10) and also asymmetric and wing-shaped, so that different high forces for opening or closing the screw can both realized as well as are adjustable.
  • the with the at least one locking element (11) corresponding locking cam (24) can end of the latching element (11) facing side in the direction of the opening and the closing movement direction have a ramp, so that the relative movement of the reverse rotation consisting of the locking element (11) and the locking cam (24) is supported and on the Ramp slope additionally the respective required force is adjustable.
  • the second closure element (20) which is designed as a flange (20) and has a pouring aid (21) on which the external thread (22) is arranged, can be shown integrally with the container (30) or as shown in the perspective side view , be executed as a separate item.
  • the at least one latching cam (24) is arranged at the transition region from the flange shoulder (23) to the pouring aid (21) with the external thread (22).
  • the latching element (11) via a web-like Festlegungs Symposium (13) with the screw cap (10) is connected. From the illustration in FIG. 2 can be seen that the web-like fixing region (13) provides a hinged connection between the locking element (11) and the screw cap (10). As a result, the latching element (11) can carry out the oscillating movement or pendulum motion already explained with reference to the fixing region (13).
  • the locking element (11) performs the already described pendulum or oscillating motion around the fixing area (13) around. Due to the material consistency and the dimensioning of the fixing area (13) an elastic restoring force is defined. This restoring force provides for a return of the locking element (11) in the basic positioning, moreover, the already described minimum forces for the implementation of forward or backward movements are provided.

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

Description

Die Erfindung betrifft ein Drehverschlusssystem mit einem ersten Verschlusselement, das drehbar gegenüber einem zweiten Verschlusselement angeordnet und in wenigstens einer orientierten Position halterbar ist, wobei zur Ausbildung einer Rückdrehsicherung wenigstens ein Rastelement verwendet ist, dass an einem der Verschlusselemente festgelegt ist und derart mit wenigstens einer zugeordneten Rastnocke korrespondiert, dass das erste Verschlusselement gegenüber dem zweiten Verschlusselement in der wenigstens einen orientierten Position lösbar gehaltert ist sowie bei der das wenigstens eine Rastelement über einen Steg an einem Verschlusselement elastisch festgelegt ist, sodass das Rastelement schwingbar ist.The invention relates to a rotary closure system having a first closure element, which is arranged rotatably relative to a second closure element and halterbar in at least one oriented position, wherein at least one latching element is used to form a reverse rotation, that is fixed to one of the closure elements and thus with at least one associated Locking cam corresponds to that the first closure element relative to the second closure element in the at least one oriented position is releasably supported and in which the at least one locking element is elastically fixed via a web on a closure element, so that the locking element is swingable.

Es ist bekannt, dass Schraubverschlüsse für Behälter oder Volumina verschiedenster Art zu Anwendung kommen, um diese gegenüber dem Inhalt weitgehend oder vollständig dicht zu verschließen. Üblicherweise werden solche Schraubverschlüsse als Drehverschlusssysteme bestehend aus einem Flansch und einer Schraubkappe gebildet und sind als wiederverschließbare Systeme ausgeführt.It is known that screw caps for containers or volumes of various kinds are used in order to close these against the contents largely or completely tight. Usually such screw caps are formed as a rotary closure systems consisting of a flange and a screw cap and are designed as resealable systems.

Um die Entnahme des Behälterinneren zu unterstützen, sind die Verschluss- oder Schraubkappen häufig derart ausgeführt, dass sie nach dem Öffnen des Verschlusssystems entfernbar sind.To aid in removal of the interior of the container, the closure or screw caps are often designed to be removable after opening the closure system.

Der Flansch weist in der Regel einen Schulterbereich auf, der zur Festlegung an dem eigentlichen Behälter vorgesehen ist. Alternativ kann ein Behälter einteilig mit dem Flansch ausgebildet sein. In diesem Fall sind das Behältermaterial und das Flanschmaterial gleich und der Flansch ist integraler Bestandteil des Behälters. Weiterhin ist ein an die Schulter des Flansches angrenzender Bereich als Ausgießöffnung für das Behälterinnere ausgebildet und mit einem Gewinde versehen, das mit der Schraubkappe derart korrespondiert, dass durch Drehbewegungen der Schraubkappe die Ausgießöffnung mit der Schraubkappe verschließbar ist.The flange usually has a shoulder portion which is intended to be fixed to the actual container. Alternatively, a container may be integrally formed with the flange. In this case, the container material and the flange material are the same and the flange is an integral part of the container. Furthermore, an area adjoining the shoulder of the flange is designed as a pouring opening for the container interior and provided with a thread which corresponds with the screw cap in such a way that the pouring opening can be closed by the screw cap by rotational movements of the screw cap.

Die Schraubkappe ist in diesem System ein erstes Verschlusselement. Infolge der Tatsache, dass Gewinde in der Regel keine Dichtfunktion übernehmen können, wird eine im Gewinde und durch eine Drehbewegung erzeugt Axialkraft dazu verwendet, den Schraubkappengrund gegen das stirnseitige Ende der Ausgießöffnung des Flansches zu Pressen und dadurch eine Abdichtung zu erreichen. Das Gewinde kann als Außengewinde entweder an dem Flansch oder an der Schraubkappe ausgeführt sein.The screw cap is a first closure element in this system. Due to the fact that threads usually can not perform a sealing function, an axial force generated in the thread and by a rotational movement is used to press the Schraubkappengrund against the front end of the pouring of the flange to press and thereby achieve a seal. The thread can be designed as external thread either on the flange or on the screw cap.

Es ist praktisch immer erwünscht, dass der Schraubverschluss unter allen Lagerungs-, Transport- und Handhabungsbedingungen zuverlässig den Behälter verschließt. In der Regel wird gefordert, dass die Verschlussfunktion hermetisch dicht ausgeführt ist. Dies gilt auch für Situationen, in welchen durch den Behälter unterschiedliche Substanzen mit fließ- oder schüttfähigen Eigenschaften aufgenommen sind, oder ein Behälterinnendruck, der über dem atmosphärischen Druck liegt, zumindest nicht ausgeschlossen ist.It is almost always desirable for the screw cap to reliably close the container under all storage, transportation and handling conditions. In general, it is required that the closure function is hermetically sealed. This also applies to situations in which received by the container different substances with flowable or pourable properties are, or a container internal pressure, which is above the atmospheric pressure, at least not excluded.

Um die Forderung nach einer zuverlässigen Verschlussfunktion zu realisieren, sind verschiedene Maßnahmen realisiert. Die Werkstoffe des Verschlusssystems sind derart aufeinander abgestimmt, dass eine ausreichend hohe Haftreibung und ein Losbrechmoment der Schraubverschlusselemente bestehend aus dem Gewinde an der Ausgießöffnung und dem Gewinde an der Verschlusskappe vorliegt.In order to realize the demand for a reliable closure function, various measures are implemented. The materials of the closure system are matched to one another such that a sufficiently high static friction and a breakaway torque of the screw closure elements consisting of the thread on the pouring opening and the thread on the closure cap is present.

Weiterhin werden insbesondere bei häufig verwendeten Kunststoffwerkstoffen die immanent innewohnenden Relaxationsvorgänge berücksichtigt. Die Gewindegestaltung ist derart realisiert, dass sowohl eine Selbsthemmung als auch ausreichende Verschlusskräfte erreicht werden. Neben der eigentlichen Gewindegeometrie ist die Gewindesteigung ein primärer Einflussfaktor dafür.Furthermore, the inherently inherent relaxation processes are taken into account, especially in the case of frequently used plastic materials. The thread design is realized in such a way that both self-locking and sufficient closure forces are achieved. In addition to the actual thread geometry, the thread pitch is a primary influencing factor for this.

Eine weitere, der zuverlässigen Verschlussfunktion entgegenstehende Situation kann vorliegen, wenn die Verschlusskappe durch von außen einwirkende Drehmomente in Öffnungsrichtung verdreht wird und dies nicht Resultat eines bewussten oder zielgerichteten Handhabungsvorganges ist. Ebenfalls kann ein Rückdrehen unerwünscht sein, um eine unrechtmäßige Produktentnahme zu verhindern.A further, the reliable closure function opposite situation may exist when the cap is rotated by externally applied torques in the opening direction and this is not the result of a deliberate or targeted handling process. Also, turning back may be undesirable to prevent unlawful product removal.

Es ist bekannt, dass Rückdrehsicherungen in Drehverschlusssystemen Anwendung finden, um die rotatorische Verschlussposition der Verschlusskappe und die dadurch erzeugten Verschlusskräfte auch in Situationen aufrecht zu erhalten, in denen von außen einwirkende Drehmomente in Öffnungsrichtung vorliegen, die nicht Resultat eines bewussten oder zielgerichteten Handhabungsvorganges sind.It is known that anti-rotation locks are used in rotary closure systems in order to maintain the rotational closure position of the closure cap and the shutter forces generated thereby also in situations in which external acting torques in the opening direction, which are not the result of a deliberate or targeted handling operation.

Bekannte Rückdrehsicherungen sind häufig durch Rastelemente und Rastnocken gebildet, die in korrespondierender Weise jeweils an einem Verschlusssystemelement festgelegt sind. Üblich ist es, diese Rückdrehsicherungen benachbart zum Gewinde und direkt an der üblicherweise zylindrischen Ausgießöffnung oder der Verschlusskappe als integralen Bestandteil anzuordnen. Diese einteilige Ausführung unterstützt eine Spritzgussherstellung insbesondere bei der Verwendung von Kunststoffwerkstoffen. Mit einer solchen Rückdrehsicherung ausgestattete Verschlüsse sind nur bedingt maschinengängig bzw. verhindern das unbeabsichtigte Aufdrehen nicht ausreichend.Known Rückdrehsicherungen are often formed by locking elements and locking cams, which are defined in a corresponding manner in each case on a closure system element. It is customary to arrange these anti-rotation locks adjacent to the thread and directly on the usually cylindrical pour opening or the cap as an integral part. This one-piece design supports injection molding, especially when using plastic materials. Locks equipped with such a reverse lock are only limited in terms of machine operation or do not sufficiently prevent unintentional unscrewing.

Die Kontaktstellen bzw. Festlegungsbereiche der integralen Rastelemente an dem jeweiligen Verschlusselement sind zum Beispiel von trapezförmiger geometrischeThe contact points or fixing areas of the integral latching elements on the respective closure element are, for example, trapezoidal geometric

Ausgestaltung, was zu einer gewissen Inelastizität führt. Infolge der praktisch starren oder nur wenig elastisch verformbaren Rastelementbefestigung muss das Rastelement an sich gegenüber den Rastnocken teilweise elastisch-plastisch verformt werden, um die Öffnungs- oder Verschlussbewegung zu realisieren. Infolge dessen sind die erforderlichen Öffnungs- und Verschlussdrehmomente, die auf die Verschlusskappe wirken müssen, sehr hoch und schlecht einstellbar.Design, which leads to a certain inelasticity. As a result of the practically rigid or only slightly elastically deformable latching element fastening, the latching element has to be partially elastically-plastically deformed relative to the latching cam in order to realize the opening or closing movement. As a result, the required opening and closing torques, which must act on the cap, are very high and difficult to adjust.

Weiterhin resultiert die fortwährende elastisch-plastische Verformung der Rastelemente in einem erhöhten Verschleiß und einem dadurch bedingten Materialverlust mit der Folge, dass sich die für die Öffnung erforderlichen Drehmomente mit zunehmender Gebrauchsdauer verringern. Der Verschleiß kann Größenordnungen annehmen, bei welchen die erforderlichen Verschlusskräfte nicht mehr ausreichend sind, um den Schraubverschluss unter allen Lagerungs-, Transport- und Handhabungsbedingungen zuverlässig in der geschlossenen Position zu halten.Furthermore, the continuous elastic-plastic deformation of the locking elements resulting in increased wear and consequent loss of material, with the result that reduce the torques required for the opening with increasing service life. The wear can take on orders of magnitude where the required closure forces are no longer sufficient to reliably hold the screw cap in the closed position under all storage, shipping and handling conditions.

Aus der EP 1 050 318 A1 ist bereits eine Rückdrehsicherung für ein Drehverschlusssystem bekannt. Die Rückdrehsicherung weist ein Rastelement sowie Verschlusselemente auf. Das Rastelement ist elastisch beweglich befestigt.From the EP 1 050 318 A1 is already known a reverse lock for a rotary closure system. The reverse rotation lock has a latching element and closure elements. The locking element is mounted elastically movable.

In der FR 2 699 506 A1 wird eine Rückdrehsicherung beschrieben, bei der das Rastelement über einen Steg mit einem Verschlusselement gekoppelt ist Der Steg weist hierbei einen geringeren Querschnitt als das Rastelement auf.In the FR 2 699 506 A1 a reverse rotation is described in which the locking element is coupled via a web with a closure element The web has in this case a smaller cross section than the locking element.

Aus der FR 2 572 369 A1 ist ebenfalls eine Rückdrehsicherung mit einem Steg bekannt, wobei der Steg für eine elastische Halterung des Rastelementes dient. Es ist Aufgabe der Erfindung, eine Rückdrehsicherung für Dreh- bzw. Schraubverschlüsse derart bereitzustellen, dass eine unbeabsichtigte Öffnung des Schraubverschlusses verhindert, eine definierte Öffnungskraft ermöglicht und die Maschinengängigkeit unterstützt wird.From the FR 2 572 369 A1 is also a reverse rotation with a web known, the web is used for an elastic support of the locking element. It is an object of the invention to provide a reverse rotation for rotary or screw caps such that prevents inadvertent opening of the screw, allows a defined opening force and the machinability is supported.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass sich der Steg radial zum Verschlusselement erstreckt, dass der Steg derart geometrisch gestaltet ist, dass die elastische Festlegung des wenigstens einen Rastelementes an einem Verschlusselement unterstützt wird, dass der Steg zur Ausbildung einer gelenkartigen Verbindung zwischen dem Rastelement und der Schraubkappe mit einem gegenüber dem Rastelement verringerten Querschnitt ausgebildet ist, dass das Rastelement wenigstens eine Abschrägung in einer Bewegungsrichtung aufweist und dass das Rastelement derart mit der zugeordneten Rastnocke korrespondiert, dass das Rastelement in der Geschlossenenstellung des ersten Verschlusselementes hinter der Rastnocke einschnappt und dass das Rastelement flügelartig ausgestaltet ist und dass der Steg zwischen dem jeweiligen Verschlusselement und dem Rastelement eine radienähnliche Oberflächenkontur aufweist.According to the invention, this object is achieved in that the web extends radially to the closure element, that the web is designed geometrically such that the elastic fixing of at least one locking element is supported on a closure element, that the web to form a hinge-like connection between the locking element and the screw cap is formed with a reduced cross section relative to the latching element, that the latching element has at least one chamfer in a direction of movement and that the latching element corresponds with the associated latching cam, that the latching element snaps behind the latching cam in the closed position of the first closure element and that the latching element is designed wing-like and that the web between the respective closure element and the locking element has a radii-like surface contour.

Die erfindungsgemäße Lehre erkennt, dass infolge einer elastischen Festlegung des wenigstens einen Rastelementes durch eine geeignete geometrische oder werkstofftechnische Gestaltung der Kontaktstelle bzw. des Festlegungsbereiches an dem jeweiligen Verschlusselement das Rastelement schwingbar ist. Die teilweise elastisch-plastische Verformung des Rastelementes und damit auch der Verschleiß können dadurch reduziert werden. Zum einen lässt sich die für die Öffnungs- und Verschließbewegungen erforderliche Kraft durch Beeinflussung des Elastizitätsgrades einstellen, zum anderen wird durch das verschleißreduzierte Zusammenwirken von Rastelement und Rastnocken eine Verringerung der erforderlichen Öffnungs- und Verschließkräften entgegengewirkt.The teaching of the invention recognizes that due to an elastic fixing of the at least one locking element by a suitable geometric or material engineering design of the contact point or the Festlegungsbereiches on the respective closure element, the locking element is swingable. The partially elastic-plastic deformation of the locking element and thus also the wear can be reduced. On the one hand, the force required for the opening and closing movements can be influenced by influencing the Setting the degree of elasticity, on the other hand, a reduction of the required opening and closing forces is counteracted by the wear-reduced interaction of locking element and locking cams.

Die Festlegung des Rastelementes derart erfolgt, dass zusätzlich in der Endstellung, d.h. in der verschlossenen Stellung des ersten Verschlusselementes, das schwingbare Rastelement hinter der Rastnocke einschnappt. Der Einschnappvorgang kann derart ausgestaltet sein, dass eine akustische und/oder haptische Rückmeldung an den Benutzer erfolgt. Die akustische Rückmeldung kann durch ein Klickgeräusch realisiert sein. Die haptische Rückmeldung kann durch eine erhöhte Verschlusskraft längs eines Teiles der Drehbewegung realisiert sein.The determination of the locking element is such that in addition in the end position, i. in the closed position of the first closure element, the swingable locking element snaps behind the locking cam. The snap-in process can be designed such that an acoustic and / or haptic feedback is sent to the user. The acoustic feedback can be realized by a click sound. The haptic feedback can be realized by an increased closure force along a part of the rotational movement.

Die elastische Festlegung des wenigstens einen Rastelementes an dem jeweiligen Verschlusselement durch eine geeignete geometrische Gestaltung der Kontaktstelle bzw. des Festlegungsbereiches wird dadurch realisiert, dass der Festlegungsbereich bzw. die Kontaktstelle durch einen sich radial zum Verschlusselement erstreckenden Steg gebildet ist. Der Steg ist mit einem gegenüber dem Rastelement verringerten Querschnitt ausgebildet, der ein elastisches Bauteilverhalten unterstützt. Weiterhin kann die äußere Kontur des Steges zwischen dem jeweiligem Verschlusselement und dem Rastelement radienähnlich ausgestaltet sein, sodass durch eine gezielte innere Spannungskonzentration infolge Kerbwirkung die lokale Elastizität des Steges unterstützt wird.The elastic fixing of the at least one latching element on the respective closure element by a suitable geometric design of the contact point or the Festlegungsbereiches is realized in that the Festlegungsbereich or the contact point is formed by a radially extending to the closure element web. The web is formed with a relative to the locking element reduced cross-section, which supports an elastic component behavior. Furthermore, the outer contour of the web between the respective closure element and the locking element can be configured radii similar, so that the local elasticity of the web is supported by a targeted inner stress concentration due to notch effect.

Die elastische Festlegung des wenigstens einen Rastelementes an dem jeweiligen Verschlusselement durch eine geeignete Materialauswahl oder eine Materialkombination der Kontaktstelle bzw. des Festlegungsbereiches wird in verschiedenen Ausführungsvarianten alternativ oder kumulativ dadurch realisiert, dass der Festlegungsbereich bzw. die Kontaktstelle wenigstens teilweise durch einen elastischen Werkstoff wie Kunststoff, z.B. PE, PP, PET, PLA, PEF, Kautschuk oder einen Federstahl gebildet ist.The elastic fixing of the at least one latching element on the respective closure element by a suitable choice of material or a material combination of the contact point or the Festlegungsbereiches is alternatively or cumulatively realized in various embodiments that the Festlegungsbereich or the contact point at least partially by an elastic material such as plastic, For example, PE, PP, PET, PLA, PEF, rubber or a spring steel is formed.

Im Sinne der Erfindung ist auch daran gedacht, dass das Rastelement aus einem anderen Material ist als das Verschlusselement ausgebildet ist.For the purposes of the invention is also thought that the locking element is made of a different material than the closure element is formed.

Um die Öffnungs- und Schließkräfte einzustellen, können sowohl wenigstens eine der geometrischen Ausgestaltungen als auch wenigstens eine der vorgeschlagen Materialspezifikation oder auch eine Kombination dieser Eigenschaften angewendet werden.In order to adjust the opening and closing forces, at least one of the geometric configurations as well as at least one of the proposed material specification or even a combination of these properties can be used.

Weiterhin erkennt die Erfindung, dass durch eine asymmetrische Ausgestaltung oder eine asymmetrische Festlegung des wenigstens einen Rastelementes an dem jeweiligen Verschlusselement unterschiedlich hohe Kräfte zum Öffnen oder Verschließen des Schraubverschlusses sowohl realisierbar als auch einstellbar sind. Eingestellt werden können die jeweiligen Kräfte für das Öffnen und Schließen auch durch Abschrägungen an dem Rastelement in der jeweiligen Bewegungsrichtung.Furthermore, the invention recognizes that due to an asymmetrical design or an asymmetrical fixing of the at least one latching element on the respective closure element, different high forces for opening or closing the screw closure are both realizable and adjustable. Can be adjusted, the respective forces for opening and closing and by bevels on the locking element in the respective direction of movement.

In den Zeichnungen sind Ausführungsbeispiele der Erfindung schematisch dargestellt. Es zeigen:

Figur 1
eine Draufsicht auf einen Ausschnitt des wenigstens einen Rastelementes (11) an der Schraubkappe (10) gemäß einem bekannten Stand der Technik, wobei das Rastelement direkt auf dem gewindetragenden Zylinder angeordnet ist und
Figur 2
eine perspektivische Ansicht, eine Draufsicht sowie eine Einzelheit A des Verschlusssystems (1) gemäß der vorliegenden Erfindung, wobei das Basiselement vom gewindetragenden Zylinder separat angeordnet ist.
In the drawings, embodiments of the invention are shown schematically. Show it:
FIG. 1
a plan view of a section of the at least one locking element (11) on the screw cap (10) according to a known prior art, wherein the locking element is arranged directly on the threaded cylinder and
FIG. 2
a perspective view, a plan view and a detail A of the closure system (1) according to the present invention, wherein the base member of the threaded cylinder is arranged separately.

Figur 1 zeigt eine Draufsicht auf einen Ausschnitt des wenigstens einen Rastelementes (11) an der Schraubkappe (10). Alternativ kann das wenigstens eine Rastelement (11) auch an dem zweiten Verschlusselement (20) festgelegt sein und die wenigstens eine Rastnocke (24) kann an dem ersten Verschlusselement (10) angeordnet sein. Der Festlegungsbereich (13) ist trapezförmig gestaltet und unterstützt eine Spritzgussherstellung insbesondere bei der Verwendung von Kunststoffwerkstoffen. Das wenigstens eine Rastelement (11) korrespondiert mit der wenigstens einen Rastnocke (24) und wird bei der Öffnungs- oder Schließbewegung teil- und, oder bereichsweise elastisch-plastisch verformt. FIG. 1 shows a plan view of a section of the at least one latching element (11) on the screw cap (10). Alternatively, the at least one latching element (11) also be fixed to the second closure element (20) and the at least one latching cam (24) can be arranged on the first closure element (10). The fixing area (13) is designed trapezoidal and supports injection molding, especially when using plastic materials. The at least one latching element (11) corresponds to the at least one latching cam (24) and is partly and / or elastically plastically deformed during the opening or closing movement.

Figur 2 zeigt eine perspektivische Ansicht, eine Draufsicht sowie eine Einzelheit A des erfindungsgemäßen Verschlusssystems (1). Die Draufsicht bildet das erste Verschlusselement in Form einer Schraubkappe (10) ab. Die Schraubkappe (10) ist mit einem Innengewinde (12) versehen und derart ausgebildet, dass das Innengewinde (12) mit dem Außengewinde (22) des zweiten Verschlusselementes korrespondiert. Das zweite Verschlusssystem ist als Flansch (20) ausgebildet und verfügt über eine Ausgießhilfe (21). An dem Flansch (20) ist das Außengewinde (22) angeordnet. Es kann alternativ ein Außengewinde an der Schraubkappe (10) vorgesehen werden, welches mit einem Innengewinde der Ausgießhilfe (21) korrespondiert. FIG. 2 shows a perspective view, a plan view and a detail A of the closure system (1) according to the invention. The plan view depicts the first closure element in the form of a screw cap (10). The screw cap (10) is provided with an internal thread (12) and designed such that the internal thread (12) corresponds to the external thread (22) of the second closure element. The second closure system is designed as a flange (20) and has a pouring aid (21). On the flange (20), the external thread (22) is arranged. Alternatively, an external thread can be provided on the screw cap (10), which corresponds to an internal thread of the pouring aid (21).

Das wenigstens eine Rastelement (11) ist durch einen Festlegungsbereich (13) an der Schraubkappe (10) festgelegt und durch einen gegenüber dem Rastelement (11) verringerten Querschnitt ausgebildet, sodass ein elastisches Bauteilverhalten unterstützt ist. Die äußere Kontur des stegförmigen Festlegungsbereiches (13) ist mit einer radienähnlichen Oberflächenkontur (14) zwischen der Schraubkappe (10) und dem Rastelement (11) ausgestaltet, sodass eine gezielte innere Spannungskonzentration infolge Kerbwirkung die lokale Elastizität des Steges (13) unterstützt.The at least one latching element (11) is fixed to the screw cap (10) by a fixing region (13) and formed by a reduced cross-section with respect to the latching element (11) so that an elastic component behavior is supported. The outer contour of the web-shaped fixing region (13) is designed with a radii-like surface contour (14) between the screw cap (10) and the latching element (11), so that a targeted internal stress concentration due to notch effect supports the local elasticity of the web (13).

Das wenigstens eine Rastelelement (11) ist in der dargestellten Ausführungsvariante durch den Festlegungsbereich (13) nicht zentrisch, sondern asymmetrisch an der Schraubkappe (10) festgelegt und zusätzlich auch asymmetrisch und flügelförmig ausgestaltet, sodass unterschiedlich hohe Kräfte zum Öffnen oder Verschließen des Schraubverschlusses sowohl realisierbar als auch einstellbar sind. Die mit dem wenigstens einen Rastelement (11) korrespondierende Rastnocke (24) kann endseitig der dem Rastelement (11) zugewandten Seite in Richtung der Öffnungs- und, oder der Verschlussbewegungsrichtung eine Rampe aufweisen, sodass die Relativbewegung der Rückdrehsicherung bestehend aus dem Rastelement (11) und der Rastnocke (24) unterstützt wird und über die Rampenneigung zusätzlich die jeweils erforderliche Kraft einstellbar ist.The at least one locking element (11) is not centric in the illustrated embodiment by the fixing area (13), but asymmetrically fixed to the screw cap (10) and also asymmetric and wing-shaped, so that different high forces for opening or closing the screw can both realized as well as are adjustable. The with the at least one locking element (11) corresponding locking cam (24) can end of the latching element (11) facing side in the direction of the opening and the closing movement direction have a ramp, so that the relative movement of the reverse rotation consisting of the locking element (11) and the locking cam (24) is supported and on the Ramp slope additionally the respective required force is adjustable.

Das zweite Verschlusselement (20), das als Flansch (20) ausgebildet ist und über eine Ausgießhilfe (21) verfügt, an dem das Außengewinde (22) angeordnet ist, kann einteilig mit dem Behälter (30), oder wie in der perspektivischen Seitenansicht dargestellt, als separates Element ausgeführt sein. Die wenigstens eine Rastnocke (24) ist am Übergangsbereich von der Flanschschulter (23) zur Ausgießhilfe (21) mit dem Außengewinde (22) angeordnet.The second closure element (20), which is designed as a flange (20) and has a pouring aid (21) on which the external thread (22) is arranged, can be shown integrally with the container (30) or as shown in the perspective side view , be executed as a separate item. The at least one latching cam (24) is arranged at the transition region from the flange shoulder (23) to the pouring aid (21) with the external thread (22).

Wie bereits vorstehend grundsätzlich erläutert, ist das Rastelement (11) über einen stegartigen Festlegungsbereich (13) mit der Schraubkappe (10) verbunden. Aus der Darstellung in Figur 2 ist erkennbar, dass der stegartige Festlegungsbereich (13) eine gelenkartige Verbindung zwischen dem Rastelement (11) und der Schraubkappe (10) bereitstellt. Das Rastelement (11) kann hierdurch bezüglich des Festlegungsbereiches (13) die bereits erläuterte Schwingbewegung bzw. Pendelbewegung durchführen. Bei einem Auflaufen der relativ zu einer Umfangsrichtung schräg angeordneten Bereiche des Rastelementes (11) auf die Rastnocke (24) führt das Rastelement (11) die bereits beschriebene Pendel- oder Schwingbewegung um den Festlegungsbereich (13) herum durch. Durch die Materialkonsistenz und die Dimensionierung des Festlegungsbereiches (13) wird eine elastische Rückstellkraft definiert. Diese Rückstellkraft sorgt zum einen für ein Zurückkehren des Rastelementes (11) in die Grundpositionierung, darüber hinaus werden die bereits beschriebenen Mindestkräfte für die Durchführung von Vorwärts- oder Rückwärtsbewegungen bereitgestellt.As already explained in principle above, the latching element (11) via a web-like Festlegungsbereich (13) with the screw cap (10) is connected. From the illustration in FIG. 2 can be seen that the web-like fixing region (13) provides a hinged connection between the locking element (11) and the screw cap (10). As a result, the latching element (11) can carry out the oscillating movement or pendulum motion already explained with reference to the fixing region (13). When the relative to a circumferential direction obliquely arranged portions of the locking element (11) on the locking cam (24), the locking element (11) performs the already described pendulum or oscillating motion around the fixing area (13) around. Due to the material consistency and the dimensioning of the fixing area (13) an elastic restoring force is defined. This restoring force provides for a return of the locking element (11) in the basic positioning, moreover, the already described minimum forces for the implementation of forward or backward movements are provided.

Claims (9)

  1. Rotary closure system (1) having a first closure element (10), which is arranged in a rotatable manner in relation to a second closure element (20) and can be retained in at least one oriented position, wherein, in order to form a return-movement lock, use is made of at least one latching element (11) that is secured on one of the closure elements (10, 20) and corresponds with at least one assigned latching protuberance (24) such that the first closure element (10) is retained in a releasable manner in relation to the second closure element (20) in the at least one oriented position, and in the case of which the at least one latching element (11) is secured elastically on a closure element (10, 20) via a crosspiece (13), the latching element (11) therefore being capable of swing action, characterized in that the crosspiece (13) extends radially in relation to the closure element (10, 20), in that the crosspiece (13) is configured geometrically to assist the elastic securing action of the at least one latching element (11) on a closure element (10, 20), in that the crosspiece (13), for the formation of a joint-like connection between the latching element (11) and the screw cap (10), is designed with a reduced cross section in relation to the latching element (11), in that the latching element (11) has at least one bevel in a movement direction, and in that the latching element (11) corresponds with the associated latching protuberance (24) such that, in the closed position of the first closure element (10), the latching element (11) snaps in behind the latching protuberance (24), and in that the latching element (11) is of wing-like configuration, and in that the crosspiece (13) has a radius-like surface contour (14) between the respective closure element (10, 20) and the latching element (11).
  2. Rotary closure system (1) according to Claim 1, characterized in that the crosspiece (13) is configured in terms of material to assist the elastic securing action of the at least one latching element (11) on a closure element (10, 20).
  3. Rotary closure system (1) according to Claim 2, characterized in that the crosspiece (13) is formed at least to some extent by an elastomer in the form of PE, PP, PET, PLA or PEF, rubber or a spring-steel material.
  4. Rotary closure system (1) according to one of Claims 1 to 3, characterized in that the latching element (11) is of symmetrical or asymmetrical configuration.
  5. Rotary closure system (1) according to one of Claims 1 to 4, characterized in that the latching element (11) is secured symmetrically or asymmetrically on a closure element (10, 20) by the crosspiece (13).
  6. Rotary closure system (1) according to one of Claims 1 to 5, characterized in that the first closure element (10) can be moved out of the oriented position in relation to the second closure element (20) by virtue of an increased opening force being exceeded.
  7. Rotary closure system (1) according to one of Claims 1 to 6, characterized in that the first closure element (10) can be moved into the oriented position in relation to the second closure element (20) by virtue of an increased closing force being exceeded.
  8. Rotary closure system (1) according to one of Claims 1 to 7, characterized in that the snap-in movement of the latching element (11) behind the latching protuberance (24) is accompanied by a noise.
  9. Rotary closure system (1) according to one of Claims 1 to 8, characterized in that the height of the crosspiece (13) is adaptable, in particular variable.
EP15737963.7A 2014-07-25 2015-05-05 Screw closure system Not-in-force EP3172140B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014011350.7A DE102014011350A1 (en) 2014-07-25 2014-07-25 Anti-reverse protection for a turn-lock system
PCT/DE2015/000221 WO2016011989A1 (en) 2014-07-25 2015-05-05 Reverse motion lock for a rotary closure system

Publications (2)

Publication Number Publication Date
EP3172140A1 EP3172140A1 (en) 2017-05-31
EP3172140B1 true EP3172140B1 (en) 2019-01-16

Family

ID=53546472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15737963.7A Not-in-force EP3172140B1 (en) 2014-07-25 2015-05-05 Screw closure system

Country Status (4)

Country Link
EP (1) EP3172140B1 (en)
DE (2) DE102014011350A1 (en)
ES (1) ES2719841T3 (en)
WO (1) WO2016011989A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12005642B2 (en) 2021-06-04 2024-06-11 Stratasys Powder Production Ltd. Sled configurations and methods of operation for the manufacture of three-dimensional objects

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK585178A (en) * 1978-01-06 1979-07-07 Ug Closures & Plastics Ltd CONTAINER CLOSE
FR2572369B1 (en) * 1984-10-30 1987-08-07 Lefebure Isolants Reunis Sa CAPPING DEVICE FOR BOTTLES OR OTHER CONTAINERS, WITH A SCREW CAP WITH ANGULAR ORIENTATION WITH RESPECT TO THE BOTTLE
FR2699506B1 (en) * 1992-12-23 1995-01-20 Cebal Assembly of a container dispensing a product and a rotating cover covering this container and having with it sound-stopping means.
JPH09169350A (en) * 1995-12-20 1997-06-30 Shiseido Co Ltd Positioning mechanism in molded container
DE69618755D1 (en) * 1995-12-21 2002-03-14 Procter & Gamble User-friendly, but childproof packaging
US5687863A (en) * 1996-01-30 1997-11-18 Owens-Illinois Closure Inc. Squeeze and turn child resistant package
DE19652148C2 (en) * 1996-12-14 2002-04-18 Linhardt Metallwarenfabr Gmbh Containers, especially bottles
US6343705B1 (en) * 1997-10-14 2002-02-05 Rexam Medical Packaging Inc. Closure having back-angled lugs
US6224588B1 (en) * 1999-05-04 2001-05-01 Saf-T-Med Flexible finger latching mechanism

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
ES2719841T3 (en) 2019-07-16
EP3172140A1 (en) 2017-05-31
DE112015003441A5 (en) 2017-05-24
DE102014011350A1 (en) 2016-02-11
WO2016011989A1 (en) 2016-01-28

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