EP0733013B1 - Twist-off closure for containers - Google Patents
Twist-off closure for containers Download PDFInfo
- Publication number
- EP0733013B1 EP0733013B1 EP94931500A EP94931500A EP0733013B1 EP 0733013 B1 EP0733013 B1 EP 0733013B1 EP 94931500 A EP94931500 A EP 94931500A EP 94931500 A EP94931500 A EP 94931500A EP 0733013 B1 EP0733013 B1 EP 0733013B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- closure
- closure cap
- thread
- cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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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
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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
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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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/023—Neck construction
Definitions
- the invention relates to a rotary clamp closure, also called a fractal closure, according to the preamble of claim 1. It is provided for a container to be closed with a cap of any dimension and design, which contains an integrated container head with an opening for removing liquid, pasty or pourable materials.
- plugs, crown caps and caps for closing containers that are commonly used in the household, the latter being designed as classic screw-type closures, preferably with an internal thread and closed bottom or lid, or in a more recent form with an integrated hinged lid, so-called one-hand hinged closures.
- classic screw-type closures more than half a turn is required for opening, but disadvantageously for the user usually an entire turn and more.
- Containers that are used with the opening inclined downwards can show undesirable premature leakage of the contents.
- Folding closures tend to open themselves, especially if the contents of the container are smeared in the area of the outlet opening, which often occurs with pasty products.
- the hygienic tightness of the snap lock is not always guaranteed.
- GB 21 81 721 A describes a closure which has a web on the container head, but uses this web as a stop for the purpose of the defined alignment between the closure cap and the container.
- a generic closure is known, with thread sections distributed around the neck of the vessel, which correspond to analog thread sections of the closure cap. Each thread section also has a web. Thread sections and webs are designed so that parts of the thread sections can snap behind the webs during the closing process.
- US Pat. No. 5,009,323 is a closure with a standardized threaded cap, on the edge of which a strip made of frangible fabric is attached, which is intended to protect against misuse or unauthorized opening.
- the structure and functional mechanism of this fresh seal is described below.
- a disadvantage of the technical solutions described is that the tightness of the closure against leakage of the container contents when the container is closed negligently by rotating the cap is not automatically ensured only up to the pressure point. Rather, in the known technical solutions, the cap must always be tightened as far as it will go, that is, beyond the pressure point.
- the twist-lock closure according to the invention is characterized in that the container head contains in the upper region a sealing lip designed as a circumferential bead, a multi-start helical thread and an identical number of webs with the number of threads. Distributed over the circumference in the lower region of the container head are a plurality of thread sections which form a steep thread and are shifted parallel to one another and form the steep thread.
- the vertical webs which run parallel to the longitudinal axis of the container, are each arranged with beveled flanks approximately in the middle with cross-sectional dimensions that are similar in comparison to the formation of the thread and adjoining the thread sections.
- the threads of the closure cap are designed analogously to the container head, above the steep thread consisting of thread sections, a cylindrical part is provided for receiving the sealing lips.
- a press clamping begins the first part of the threads of the closure cap with the webs of the container head.
- the clamping effect is achieved. If you open the cap, the effects described occur in reverse order.
- the cap remains clamped up to a rotation angle of 30 °, so it is secured against unintentional, independent opening.
- the circumferential bead which is designed as a sealing lip in the container head, acts as a seal against unwanted leakage of the container contents. Only when the cap is turned further than 80 ° is it loosened and can be removed after half a turn.
- the container After reaching the first pressure point, which results from the entry of the sealing lip formed as a circumferential bead on the container head into the cylindrical part of the closure cap (approx. 80 ° rotation angle before complete closure), the container is already secured against leakage. After exceeding the second pressure point, which results from the engagement of the first part of the steep threads of the closure cap in the webs of the container head results (approx. 30 ° angle of rotation before it is completely closed), the container is completely secured against unintentional opening, eg in the event of vibration.
- container head 4 and closure cap 5 are made of plastic, for example polyethylene.
- the steep thread 1 of the container head 4 has three threads and has an incline of 15 °.
- the first pressure point is reached when the sealing lip 6 of the container head 4 is immersed in the cylindrical part 7 of the cap 5. From this position of the closure cap 5, the sealing lip 6, which is designed as a circumferential bead, seals flush with the cylindrical part 7 of the closure cap 5 so that the container contents can no longer escape.
- the webs 2 themselves are connected to the threads of the container head 4 in such a way that there is a small bevel 8 between the webs 2 and the thread tip, which makes it easier for the latter to run onto the webs 2, so that no excessive torque is required when screwing on the closure cap 5 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Closures For Containers (AREA)
Abstract
Description
Die Erfindung betrifft einen Drehklemmverschluß, auch Fraktalverschluß genannt, nach dem Oberbegriff des Anspruchs 1. Er ist vorgesehen für einen mit einer Kappe zu verschließenden Behälter beliebiger Dimension und Ausführungsart, der einen integrierten Behälterkopf mit einer Öffnung zur Entnahme flüssiger, pastöser oder schüttfähiger Materialien enthält.The invention relates to a rotary clamp closure, also called a fractal closure, according to the preamble of
Zum Verschließen von speziell im Haushalt gebräuchlichen Behältern existieren Stopfen, Kronkorken und Verschlußkappen, wobei letztere als klassische Drehschraubverschlüsse mit vorzugsweise Innengewinde und geschlossenem Boden bzw. Deckel oder in neuerer Form mit einem integrierten abklappbaren Deckel, sogenannte Einhand-Klappverschlüsse, ausgebildet sind. Bei den klassischen Drehschraubverschlüssen wird zum Öffnen mehr als eine halbe Umdrehung benötigt, nachteiligerweise für den Benutzer gewöhnlich aber eine ganze Umdrehung und mehr.There are plugs, crown caps and caps for closing containers that are commonly used in the household, the latter being designed as classic screw-type closures, preferably with an internal thread and closed bottom or lid, or in a more recent form with an integrated hinged lid, so-called one-hand hinged closures. In the case of the classic screw-type closures, more than half a turn is required for opening, but disadvantageously for the user usually an entire turn and more.
Behälter, die mit der Öffnung nach unten geneigt angewendet werden, z.B. Zahnchremetuben, können dabei unerwünschten vorzeitigen Austritt des Inhaltes zeigen. Klappverschlüsse neigen dazu, sich selbst zu öffnen, vor allem wenn sich der Behälterinhalt im Bereich der Austrittsöffnung verschmiert, was bei pastösen Produkten häufig vorkommt. Die hygienische Dichtheit des Klappverschlusses ist dann nicht immer gewährleistet. Um den beschriebenen Nachteilen entgegenzutreten, sind einige technische Lösungen bekannt.Containers that are used with the opening inclined downwards, such as toothpaste tubes, can show undesirable premature leakage of the contents. Folding closures tend to open themselves, especially if the contents of the container are smeared in the area of the outlet opening, which often occurs with pasty products. The hygienic tightness of the snap lock is not always guaranteed. To the disadvantages described to counter this, some technical solutions are known.
In den DE 37 42 692 A1, DE 40 29 467 A1, DE 29 13 883 A1 und DE 32 47 353 A1 werden Verschlüsse beschrieben, welche teilweise schon nach 1/4 Umdrehung vollständig geöffnet sind und ein gefühlsmäßig spürbares Ein- und Ausschnappen bei entsprechender Drehbewegung gewährleisten. Dazu werden konstruktiv Umfangswülste, Einschnapprillen und Nocken bzw. auch Zungen benutzt. Die Gewinde sind mehrgängig mit Steigungswinkeln zwischen 30° und 45°.In DE 37 42 692 A1, DE 40 29 467 A1, DE 29 13 883 A1 and DE 32 47 353 A1 closures are described, some of which are already fully open after a 1/4 turn and an emotionally noticeable snapping in and out with the corresponding Ensure rotational movement. For this purpose, circumferential beads, snap-in grooves and cams or tongues are used. The threads are multi-start with lead angles between 30 ° and 45 °.
In der GB 21 81 721 A wird ein Verschluß beschrieben, der am Behälterkopf einen Steg aufweist, diesen Steg aber als Anschlag zum Zweck der definierten Ausrichtung zwischen Verschlußkappe und Behälter benutzt.GB 21 81 721 A describes a closure which has a web on the container head, but uses this web as a stop for the purpose of the defined alignment between the closure cap and the container.
Aus GB 2 203 729 ist ein gattungsgemäßer Verschluß bekannt, mit am Hals des Gefäßes verteilten Gewindegangabschnitten, die mit analogen Gewindegangabschnitten der Verschlußkappe korrespondieren. Jeder Gewindegangabschnitt weist zusätzlich einen Steg auf. Gewindegangabschnitte und Stege sind dabei so ausgeführt, daß beim Verschlußvorgang Teile der Gewindeabschnitte hinter den Stegen einschnappen können.From
Gegenstand der Patentschrift US 5,009,323 ist ein Verschluß mit genormter Gewindekappe, an deren Kappenrand ein aus frangiblem Gewebe bestehender Streifen angebracht ist, der vor Mißbrauch bzw. unberechtigter Öffnung schützen soll.
Aufbau und Funktionsmechanismus dieses Frischesiegels wird im weiteren beschrieben.
Am Behälterkopf des Verschlusses ist eine Dichtlippe vorhanden, die beim Aufdrehen der Verschlußkappe vom zylindrischen Teil der Kappe aufgenommen wird.The subject of US Pat. No. 5,009,323 is a closure with a standardized threaded cap, on the edge of which a strip made of frangible fabric is attached, which is intended to protect against misuse or unauthorized opening.
The structure and functional mechanism of this fresh seal is described below.
There is a sealing lip on the container head of the closure, which is received by the cylindrical part of the cap when the closure cap is unscrewed.
Nachteilig ist bei den beschriebenen technischer Lösungen, daß die Dichtheit des Verschlusses gegen einen Austritt des Behälterinhaltes beim nachlässigen Verschließen des Behälters durch Drehen der Kappe nur bis zum Druckpunkt eben nicht automatisch gesichert ist. Vielmehr muß bei den bekannten technischen Lösungen die Kappe immer fest bis zum Anschlag angezogen werden, daß heißt über den Druckpunkt hinaus.A disadvantage of the technical solutions described is that the tightness of the closure against leakage of the container contents when the container is closed negligently by rotating the cap is not automatically ensured only up to the pressure point. Rather, in the known technical solutions, the cap must always be tightened as far as it will go, that is, beyond the pressure point.
Der Erfindung liegt daher die Aufgabe zugrunde, einen gattungsgemäßen Drehklemmverschluß zu schaffen, der
- sich mit einer kurzen Drehbewegung (unter 180° Drehwinkel) öffnen und schließen läßt,
- im geschlossenen Zustand gegen ungewolltes selbständiges Öffnen gesichert ist (Klemmen) und
- der selbst bei nachlässigem Verschließen (nicht bis zum Anschlag festgedreht) gegen Auslaufen des Füllgutes dicht ist.
- can be opened and closed with a short rotary movement (at an angle of rotation of 180 °),
- is secured against unintentional opening in the closed state (terminals) and
- which prevents the filling material from leaking even if it is closed carelessly (not tightened as far as it will go) is tight.
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Hauptanspruchs gelöst. Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche.This object is achieved by the characterizing features of the main claim. Advantageous further developments are the subject of the subclaims.
Der erfindungsgemäße Drehklemmverschluß ist dadurch gekennzeichnet, daß der Behälterkopf im oberen Bereich eine als Umfangswulst ausgebildete Dichtlippe, ein mehrgängiges Steilgewinde sowie eine mit der Gewindeganganzahl identische Anzahl Stege enthält. Dabei sind über den Umfang im unteren Bereich des Behälterkopfes verteilt mehrere mit einer Steigung unter 30° parallel zueinander verschobene, das Steilgewinde bildende Gewindegangabschnitte vorhanden.The twist-lock closure according to the invention is characterized in that the container head contains in the upper region a sealing lip designed as a circumferential bead, a multi-start helical thread and an identical number of webs with the number of threads. Distributed over the circumference in the lower region of the container head are a plurality of thread sections which form a steep thread and are shifted parallel to one another and form the steep thread.
Die vertikalen, parallel zur Behälterlängsachse verlaufenden Stege sind mit abgeschrägten Flanken jeweils etwa mittig mit im Vergleich zur Ausbildung des Gewindes ähnlichen Querschnittsabmessungen und an den Gewindegangabschnitten angrenzend angeordnet.The vertical webs, which run parallel to the longitudinal axis of the container, are each arranged with beveled flanks approximately in the middle with cross-sectional dimensions that are similar in comparison to the formation of the thread and adjoining the thread sections.
Die Gewindegänge der Verschlußkappe sind analog zum Behälterkopf gestaltet, oberhalb des aus Gewindegangabschnitten bestehende Steilgewindes ist ein zylindrischer Teil zur Aufnahme der Dichtlippen vorgesehen.The threads of the closure cap are designed analogously to the container head, above the steep thread consisting of thread sections, a cylindrical part is provided for receiving the sealing lips.
Dichtlippe und mit vertikalen Stegen ausgebildetes Steilgewinde des Behälterkopfes gewährleisten in Verbindung mit dem entsprechenden Steilgewinde der Verschlußkappe bei einer halben Umdrehung der Verschlußkappe gegen den spürbaren Druckpunkt die Sicherheit gegen Austritt des Behälterinhaltes.Sealing lip and steep thread of the container head formed with vertical webs, in conjunction with the corresponding steep thread of the closure cap, guarantee security against leakage of the container contents at half a turn of the closure cap against the noticeable pressure point.
In dieser Stellung der Verschlußkappe beginnt eine Preßklemmung des ersten Teils der Gewindegänge der Verschlußkappe mit den Stegen des Behälterkopfes. Beim Weiterdrehen der Verschlußkappe über den deutlich spürbaren Druckpunkt hinaus ist die Klemmwirkung erreicht. Öffnet man die Verschlußkappe, so treten die beschriebenen Effekte in umgekehrter Reihenfolge auf. Bis zu einem Drehwinkel von 30° bleibt die Verschlußkappe geklemmt, ist also gegen ungewolltes, selbständiges öffnen gesichert. Bis zu einem Drehwinkel von 80° wirkt die als Dichtlippe im Behälterkopf ausgebildete Umfangswulst als Dichtung gegen ungewollten Austritt des Behälterinhaltes. Erst beim Weiterdrehen der Verschlußkappe über 80° hinaus wird sie gelockert und kann nach einer halben Umdrehung abgenommen werden.In this position of the cap, a press clamping begins the first part of the threads of the closure cap with the webs of the container head. When the cap is turned further beyond the clearly noticeable pressure point, the clamping effect is achieved. If you open the cap, the effects described occur in reverse order. The cap remains clamped up to a rotation angle of 30 °, so it is secured against unintentional, independent opening. Up to a rotation angle of 80 °, the circumferential bead, which is designed as a sealing lip in the container head, acts as a seal against unwanted leakage of the container contents. Only when the cap is turned further than 80 ° is it loosened and can be removed after half a turn.
Damit ist die Handhabung bei der Füllgutentnahme und dem Wiederverschließen des Behälters mittels einer dem Verbraucher bestens vertrauten Drehbewegung gewährleistet, wobei einerseits durch die lange Klemmphase von 30° Drehwinkel eine hohe Sicherheit gegen vorzeitigen unerwünschten Füllgutaustritt, andererseits durch die Abnehmbarkeit der Verschlußkappe nach nur einer halben Umdrehung eine schnelle Füllgutentnahme ermöglicht wird. So kann die Verschlußkappe ohne Fingergriffwechsel vom Behälter abgenommen und auch wieder aufgesetzt und verschlossen werden.This ensures handling during the removal of the filling material and the reclosing of the container by means of a rotary movement that is very familiar to the consumer, whereby on the one hand, due to the long clamping phase of 30 ° rotation angle, a high level of security against premature undesired filling material leakage, and on the other hand, due to the fact that the closure cap can be removed after only half a turn rapid filling removal is made possible. In this way, the cap can be removed from the container without changing fingers, and can also be replaced and closed.
Nach Erreichen des ersten Druckpunktes, der sich aus dem Eintritt der als Umfangswulst am Behälterkopf ausgebildeten Dichtlippe in den zylindrischen Teil der Verschlußkappe ergibt (ca. 80° Drehwinkel vor dem vollständigen Verschluß), ist der Behälter bereits gegen Auslaufen gesichert. Nach Überschreiten des zweiten Druckpunktes, der sich aus dem Eingreifen des ersten Teils der Steilgewindegänge der Verschlußkappe in die Stege des Behälterkopfes ergibt (ca. 30° Drehwinkel vor dem vollständigen Verschluß) ist der Behälter gegen ungewolltes Öffnen, z.B. bei Erschütterung, vollständig gesichert.After reaching the first pressure point, which results from the entry of the sealing lip formed as a circumferential bead on the container head into the cylindrical part of the closure cap (approx. 80 ° rotation angle before complete closure), the container is already secured against leakage. After exceeding the second pressure point, which results from the engagement of the first part of the steep threads of the closure cap in the webs of the container head results (approx. 30 ° angle of rotation before it is completely closed), the container is completely secured against unintentional opening, eg in the event of vibration.
Nachfolgend wird der Erfindungsgegenstand anhand von Ausführungsbeispielen näher erläutert. In den zugehörigen Zeichnungen zeigt:
- Fig. 1
- vereinfacht einen Schnitt durch Behälterkopf und Standverschlußkappe,
- Fig. 2
- ein vergrößertes Detail der erfindungsgemäßen Merkmale Steilgewinde, Dichtlippe am Behälterkopf und Standverschlußkappe,
- Fig. 3
- vereinfacht einen Schnitt durch Behälterkopf und Kegelhutverschlußkappe,
- Fig. 4
- ein vergrößertes Detail der erfindungsgemäßen Merkmale Steilgewinde, Dichtlippe am Behälterkopf und Kegelhutverschlußkappe.
- Fig. 1
- simplifies a cut through the container head and stand cap,
- Fig. 2
- an enlarged detail of the features according to the invention steep thread, sealing lip on the container head and stand cap,
- Fig. 3
- simplifies a cut through the container head and conical cap,
- Fig. 4
- an enlarged detail of the features steep thread, sealing lip on the container head and conical hat cap.
Im dargestellten Ausführungsbeispiel gemäß Fig. 1 und 2 sind Behälterkopf 4 und Verschlußkappe 5 aus Kunststoff, z.B. Polyethylen, gefertigt. Das Steilgewinde 1 des Behälterkopfes 4 ist dreigängig und hat eine Steigung von 15°. Beim Zudrehen der Verschlußkappe 5 wird der erste Druckpunkt erreicht, wenn die Dichtlippe 6 des Behälterkopfes 4 in den zylindrischen Teil 7 der Verschlußkappe 5 eintaucht. Ab dieser Stellung der Verschlußkappe 5 dichtet die als Umfangswulst ausgebildete Dichtlippe 6 mit dem zylindrischen Teil 7 der Verschlußkappe 5 bündig so ab, daß kein Austritt des Behälterinhaltes mehr möglich ist.In the illustrated embodiment according to FIGS. 1 and 2,
Beim Weiterdrehen gleitet der erste Teil des Steilgewindes 3 der Verschlußkappe 5 mit seiner Spitze auf die Stege 2 des Behälterkopfes 4 auf, was als zweiter Druckpunkt spürbar ist. Diese Preßklemmwirkung bleibt bis zum vollständigen Aufschrauben (Anschlag) erhalten.When turning further, the first part of the
Die Stege 2 selbst sind mit den Gewindegängen des Behälterkopfes 4 dergestalt verbunden, daß eine kleine Abschrägung 8 zwischen den Stegen 2 und der Gewindespitze besteht, die das Auflaufen letzterer auf die Stege 2 erleichtert, so daß kein übermäßiges Drehmoment beim Aufschrauben der Verschlußkappe 5 erforderlich ist.The
Öffnet man die Verschlußkappe, so treten die beschriebenen Effekte in umgekehrter Reihenfolge auf. Bis zu einem Drehwinkel von 30° bleibt die Verschlußkappe 5 geklemmt, ist also gegen ungewolltes, selbständiges öffnen gesichert. Bis zu einem Drehwinkel von 80° wirkt die als Dichtlippe im Behälterkopf 4 ausgebildete Umfangswulst 6 als verschiebbare Dichtung gegen ungewollten Austritt des Behälterinhaltes. Erst beim Weiterdrehen der Verschlußkappe 5 über 80° hinaus wird sie gelockert und kann nach einer halben Umdrehung vom Behälterkopf 4 abgenommen werden. Damit ist die Handhabung bei der Füllgutentnahme und der Wiederverschließung des Behälters mittels einer vom Verbraucher bestens vertrauten Drehbewegung gewährleistet, wobei einerseits durch die lange Klemmphase von 30° Drehwinkel eine hohe Sicherheit gegen vorzeitigen unerwünschten Füllgutaustritt, andererseits durch die Abnehmbarkeit der Verschlußkappe nach nur einer halben Umdrehung eine schnelle Füllgutentnahme ermöglicht wird. So kann die Verschlußkappe ohne Fingergriffwechsel vom Behälter abgenommen und auch wieder aufgesetzt und verschlossen werden.If you open the cap, the effects described occur in reverse order. Up to a rotation angle of 30 °, the
Insgesamt ist der Kraft- und Zeitaufwand zum öffnen und Schließen des Behälters für den Konsumenten wesentlich geringer als bei normalen Drehverschlüssen, was eine benutzerfreundliche Handhabung erlaubt.Overall, the effort and time required to open and close the container for the consumer is considerably less than with normal rotary closures, which allows user-friendly handling.
In den Fig. 3 und 4 sind die erfindungsgemäßen Merkmale für eine Kegelhutverschlußkappe dargestellt, deren Ausführung und Funktionsweise mit der vorstehenden Beschreibung völlig identisch ist.3 and 4, the features according to the invention for a conical hat closure cap are shown, the design and mode of operation of which are completely identical to the above description.
Die Fig. 3 und 4 stellen somit nur äußere Gestaltungsbeispiele möglicher Verschlußkappen dar, ohne daß auf diese ein gesonderter Erfindungsanspruch erhoben wird.3 and 4 thus represent only external design examples of possible caps, without this being a separate claim to the invention.
Claims (5)
- A twist-off closure, also called fractal closure, for any kind of container, comprising a closure cap (5) and a container head (4), the container head further having fins (2), the lower portion of the container head (4) having a steep, multiple-start thread (1) which consists of thread segments, and the thread segments (1) of the container head (4) having vertical fins (2) with similar cross section dimensions
whereina) the steep thread (1) has a pitch of less than 30°b) the vertical fins (2) are arranged approximately centreline in the thread segments (1)c) a sealing lip (6) shaped as a circumferential bead is provided in the upper portion of the container head (4) and is arranged, such that the sealing lip (6) and closure cap (5) engage before the thread (3) of the cap (5) begins to get on the vertical fins (2), andd) the threads (3) of the closure cap (5) are formed and arranged in the same way as the threads of the steep thread (1) of the container head (4) with a cylindrical portion (7) provided above the thread segments (3) to receive the sealing lip (6). - Twist-off closure of Claim 1,
wherein the steep threads (1) and (3) of the container head (4) and closure cap (5) comprise three thread sections displaced parallel in relation to each other. - Twist-off closure of Claim 1 or 2,
wherein the steep threads (1) and (3) have a pitch of 15°, such that it is possible to open and close the container with a half turn without the need to reposition the hand. - Twist-off closure of any of the Claims 1 to 3,
wherein the circumferential bead acting as a sealing lip (6) is arranged such that it provides a tight seal with the cylindrical portion (7) of the closure cap (5) even in the event that the closure cap (5) is screwed on only barely past the first slight pressure point which occurs when the sealing lip (6) begins to engage the cylindrical portion (7) of the closure cap (5). - Twist-off closure of any of the Claims 1 to 4,
wherein the vertical fins (2) oil the container head (4) have chamfers (8) which make getting on of the appropriate thread crest of the closure cap (5) easier.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4342251 | 1993-12-10 | ||
| DE4342251A DE4342251C1 (en) | 1993-12-10 | 1993-12-10 | Twist lock for containers |
| PCT/DE1994/001280 WO1995015892A1 (en) | 1993-12-10 | 1994-10-31 | Twist-off closure for containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0733013A1 EP0733013A1 (en) | 1996-09-25 |
| EP0733013B1 true EP0733013B1 (en) | 1997-07-30 |
Family
ID=6504728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94931500A Expired - Lifetime EP0733013B1 (en) | 1993-12-10 | 1994-10-31 | Twist-off closure for containers |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5722545A (en) |
| EP (1) | EP0733013B1 (en) |
| JP (1) | JPH09501131A (en) |
| KR (1) | KR960703773A (en) |
| AT (1) | ATE156084T1 (en) |
| DE (1) | DE4342251C1 (en) |
| ES (1) | ES2105778T3 (en) |
| WO (1) | WO1995015892A1 (en) |
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| SE9700948D0 (en) * | 1997-03-14 | 1997-03-14 | Astra Ab | Powder inhales X |
| DE19727723A1 (en) * | 1997-06-13 | 1998-12-24 | Richard Herbst | Screw connection, method for closing a container and method and device for injection molding a plastic body |
| FR2767794B1 (en) * | 1997-08-29 | 1999-10-08 | Oreal | SET OF TWO FREE MOUNTED ROTATING ELEMENTS IN RELATION TO THE OTHER, IN PARTICULAR FOR A MIXER IN THE FIELD OF HAIR COLORING |
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| US6260722B1 (en) * | 1999-12-29 | 2001-07-17 | Phoenix Closures, Inc. | Cap and container assembly |
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| FR977175A (en) * | 1948-10-28 | 1951-03-28 | Jar, its seal and its lid | |
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| DE2913883C2 (en) * | 1979-04-06 | 1982-03-18 | Dalli-Werke Mäurer & Wirtz, 5190 Stolberg | Bottle with closure cap, in particular for holding perfumes, scented waters and other liquid cosmetic products |
| US4770308A (en) * | 1979-10-15 | 1988-09-13 | Becton, Dickinson And Company | Container and closure assembly having intermediate positioning means |
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| US4669624A (en) * | 1985-10-21 | 1987-06-02 | Specialty Packaging Products, Inc. | Means for mounting and locking a screw threaded closure in a predetermined position |
| CH672296A5 (en) * | 1986-12-19 | 1989-11-15 | Neopac Ag | |
| DE3708472A1 (en) * | 1987-03-16 | 1988-10-06 | Zeller Plastik Koehn Graebner | PLASTIC SCREW PART |
| GB2203729A (en) * | 1987-03-19 | 1988-10-26 | Metal Box Plc | Closure systems for containers |
| DE3830641C1 (en) * | 1988-09-09 | 1989-05-18 | Citius Buerotechnik Gmbh, 8900 Augsburg, De | Closure for a bottle for correction fluid |
| DE4029467A1 (en) * | 1989-11-07 | 1991-05-08 | Huebner Gmbh & Co Max | Plastics twist off closure cap for partly threaded container - has radially inner and concentric radially outer side, with sealing lip and tongues |
| US5009323A (en) * | 1989-11-13 | 1991-04-23 | Sunbeam Plastics Corporation | Tamper indicating closure having a rotary seal |
| FR2665829B1 (en) * | 1990-08-17 | 1993-12-17 | Techpack Internal Sa | ORIENTABLE SCREWED HAIR CONTAINER. |
| GB9316834D0 (en) * | 1993-08-13 | 1993-09-29 | Beeson & Sons Ltd | Container closure assembly |
-
1993
- 1993-12-10 DE DE4342251A patent/DE4342251C1/en not_active Expired - Fee Related
-
1994
- 1994-10-31 EP EP94931500A patent/EP0733013B1/en not_active Expired - Lifetime
- 1994-10-31 WO PCT/DE1994/001280 patent/WO1995015892A1/en active IP Right Grant
- 1994-10-31 AT AT94931500T patent/ATE156084T1/en not_active IP Right Cessation
- 1994-10-31 KR KR1019960700790A patent/KR960703773A/en not_active Application Discontinuation
- 1994-10-31 ES ES94931500T patent/ES2105778T3/en not_active Expired - Lifetime
- 1994-10-31 JP JP7515869A patent/JPH09501131A/en active Pending
- 1994-10-31 US US08/624,449 patent/US5722545A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2105778T3 (en) | 1997-10-16 |
| WO1995015892A1 (en) | 1995-06-15 |
| KR960703773A (en) | 1996-08-31 |
| ATE156084T1 (en) | 1997-08-15 |
| DE4342251C1 (en) | 1995-05-11 |
| JPH09501131A (en) | 1997-02-04 |
| EP0733013A1 (en) | 1996-09-25 |
| US5722545A (en) | 1998-03-03 |
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