EP1005999A2 - Cartridge closure with valve function - Google Patents

Cartridge closure with valve function Download PDF

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Publication number
EP1005999A2
EP1005999A2 EP99117702A EP99117702A EP1005999A2 EP 1005999 A2 EP1005999 A2 EP 1005999A2 EP 99117702 A EP99117702 A EP 99117702A EP 99117702 A EP99117702 A EP 99117702A EP 1005999 A2 EP1005999 A2 EP 1005999A2
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EP
European Patent Office
Prior art keywords
valve sleeve
neck
cartridge
mouthpiece neck
mouthpiece
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.)
Granted
Application number
EP99117702A
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German (de)
French (fr)
Other versions
EP1005999B1 (en
EP1005999A3 (en
Inventor
Frank Ritter
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Individual
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Individual
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Publication date
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Publication of EP1005999A2 publication Critical patent/EP1005999A2/en
Publication of EP1005999A3 publication Critical patent/EP1005999A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/1752—Mounting within the printer
    • B41J2/17523—Ink connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/08—Ducts, containers, supply or metering devices with ink ejecting means, e.g. pumps, nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor
    • B41J2/17503—Ink cartridges
    • B41J2/17513—Inner structure
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2081—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve port

Definitions

  • the invention relates to a cartridge closure with a valve function, especially for plastic ink cartridges.
  • Modern printing units work with continuously controlled automatic ink supply in the ink fountain.
  • this plastic cartridges filled with the printing ink in pneumatic Squeezers used on the ink fountain of the printing unit are mounted and the printing ink is pneumatic in the required quantities in the color box to squeeze.
  • the cartridges have a cartridge closure with valve function.
  • the object of the invention is therefore a cartridge closure with valve function to meet these requirements in in an optimal way.
  • FIGS. 1 and 2 In the axial section according to FIGS. 1 and 2 is a section of the End wall 1 of the cartridge with the one-piece molded Mouthpiece neck 2 shown.
  • On the mouthpiece neck 2 is outside a multi-start screw thread 3 is formed.
  • the mouthpiece neck and central body has formed outlet opening of the cartridge mouthpiece thus the shape of an annular slot opening 6 between the mouthpiece neck 2 and the central body 5.
  • valve sleeve 7 On the mouthpiece neck 2 is the side view in FIG. 3 and valve sleeve 7 shown in cross section in FIG. 4 put on.
  • This valve sleeve 7 consists of an upper part 8, which, as FIGS. 1 and 2 show, the upper edge of the Mouthpiece neck 2 engages with a U-profile, the inner Thigh a slightly arched outward to the forms free end tapered elastic sealing lip 14, sealing against the inner wall of the mouthpiece neck 2 creates, and from a lower ring part 9, which behind a Number from above the threads 3 on the outside of the Mouthpiece neck 2 molded latches 10 snaps into place.
  • the Upper part 8 and the ring part 9 of the valve sleeve 7 are through Groups of S-shaped wall webs 11 connected to one another, which have the course shown in Fig. 3.
  • the cross section 4 shows that three groups of such material webs 11 distributed around the circumference of the valve sleeve 7 are.
  • valve sleeve 7 shows the shape of the material webs 11, as you can easily see, a certain axial elasticity of the Valve sleeve 7 in the sense that the upper part 8 and the ring part 9 can be pulled apart axially to a certain extent, the S-shaped curved wall webs 11 like leaf springs Act.
  • the upper part 8 of the valve sleeve 7 has a conical shape inwardly projecting lip 12 which, like FIGS. 1 and 2 show, as a sealing lip with the central body 5 of the cartridge mouthpiece cooperates.
  • a closure cap 13 can be screwed on, which is absolutely airtight when the cartridge is not in use Securing the end of the cartridge mouthpiece.
  • valve sleeve upper part 8 The axial movement of the valve sleeve upper part 8 during the opening process takes place in that the upper part 8 on the of Connection with the ribs 4 from the projecting part of the mouthpiece neck 2 is guided and slides, since this projecting mouthpiece neck end part from the U-profile of the valve sleeve upper part 8 is encompassed and in particular the inner Sealing lip 14 slides on the inner wall of the mouthpiece neck.
  • the closure cap 13 shown in Fig. 1, with a complementary multi-thread on the multi-thread External screw thread 3 of the mouthpiece neck 2 can be screwed on ensures the absolutely airtight seal of the cartridge during storage and transport until the cartridge is used as well as when storing a opened cartridge.
  • the Closure cover 13 presses the lip 12 of the valve sleeve 7 firmly against the central body 5 and also puts on the rest Mating surfaces of the valve sleeve upper part 8. As from Fig.
  • 5A and 5B show an advantageous further development in detail the arrangement of the mouthpiece neck 2 and the sealing lip 14 of the valve sleeve 7 in a greatly enlarged illustration.
  • 5A shows the position of the sealing lip 14 in the Closed position of the valve sleeve 7
  • Fig. 5B the position the sealing lip 14 in the open position of the valve sleeve 7.
  • the inner wall surface of the mouthpiece neck 2 a paragraph in the form of an inclined ramp 2A, with which the Inner diameter of the mouthpiece neck of a narrower diameter in the upper area to a slightly wider diameter expanded in the lower area.
  • Paragraph 2A is arranged so that in the closed position of the valve sleeve 7, the sealing lip 14 rests on the inner wall area with a larger diameter, that but during the opening movement of the valve sleeve 7 the sealing lip 14 over the paragraph 2A on the diameter smaller wall area of the mouthpiece neck 2 slides on.

Abstract

When closure cover (13) is removed, pressure on cartridge contents is transferred via a ring gap (6) between the mouth piece neck (2) and central body (5), by the lips (12) of the valve sleeve (7). Valve sleeve has inner axial elasticity due to form of edge ridges (11), so the upper part (8) is moved axially and a ring gap opens between the lip and central body to emit print ink. Central body (5) arched outwards, is connected to neck (2) of mouth piece of cartridge wall (1) and supported on thin ribs (4) projecting inwards. Central body and neck form outlet opening of cartridge. Valve sleeve (7) is seated on neck, valve upper part (8) grips over upper edge of neck with U-shape and inner leg forms elastic sealing lip (14), lying on inner wall of neck to seal it. Upper (8) and ring part (9) of valve sleeve are connected with each other by groups of S-shaped wall ridges (11). Thread (3) of neck has closure cover (13) which screws on during non-use of cartridge.

Description

Die Erfindung betrifft einen Kartuschenverschluß mit Ventilfunktion, insbesondere für Druckfarbenkartuschen aus Kunststoff.The invention relates to a cartridge closure with a valve function, especially for plastic ink cartridges.

Moderne Druckwerke arbeiten mit kontinuierlich gesteuerter automatischer Druckfarbenzufuhr in den Farbkasten. Dazu werden mit der Druckfarbe gefüllte Kunststoffkartuschen in pneumatische Auspreßvorrichtungen eingesetzt, die am Farbkasten des Druckwerks montiert sind und die Druckfarbe pneumatisch in den benötigten Mengen jeweils impulsweise in den Farbkasten auspressen. Die Kartuschen haben dazu einen Kartuschenverschluß mit Ventilfunktion.Modern printing units work with continuously controlled automatic ink supply in the ink fountain. To do this plastic cartridges filled with the printing ink in pneumatic Squeezers used on the ink fountain of the printing unit are mounted and the printing ink is pneumatic in the required quantities in the color box to squeeze. For this purpose, the cartridges have a cartridge closure with valve function.

Bekannte Kartuschenverschlüsse dieser Art mit als Ventil wirkenden, sternförmig oder einfach diametral eingeschnittenen elastischen Verschlußmembranen, die sich bei Druckausübung auf den Kartuscheninhalt öffnen und beim Wegnehmen des Drucks durch ihre elastische Rückstellung selbsttägig wieder verschließen, arbeiten nicht zufriedenstellend, wie die Praxis gezeigt hat.Known cartridge closures of this type with valve acting star-shaped or simply diametrically cut elastic closure membranes, which occur when pressure is applied open the contents of the cartridge and remove the pressure close again automatically thanks to its elastic resetting, don't work satisfactorily like practice showed.

An einen solchen Kartuschenverschluß mit Ventilfunktion sind folgende Forderungen zu stellen:Such a cartridge closure with valve function to make the following demands:

Für Lagerung und Transport der Kartuschen bis zum Gebrauch sowie zur Aufbewahrung angebrochener Kartuschen bis zum Wiedergebrauch muß die Kartusche absolut luftdicht verschlossen sein, um ein Abbinden von Druckfarbe auszuschließen. Jede noch so kleine Undichtigkeit im Bereich des Kartuschenverschlusses führt dazu, daß im Auslaßbereich ein wenn auch in geringem Maße stattfindendes Abbinden von Druckfarbe einsetzt, was die Austrittsöffnung verstopft und die Ventilfunktion behindert und insbesondere ein dichtes Wiederschließen unmöglich macht. Das begründet die Gefahr, daß noch weitgehend gefüllte Farbkartuschen unbrauchbar werden. Besonders gravierend ist das dort, wo bei Mehrfarbendruck von einer Farbe nur geringe Mengen benötigt werden.For storage and transportation of the cartridges until use as well as for storing opened cartridges until The cartridge must be absolutely airtight when used again to prevent ink from setting. Each Even the smallest leak in the area of the cartridge seal leads to a in the outlet area, albeit in the ink sets to a lesser extent, which clogs the outlet opening and the valve function hindered and in particular a tight reclosing makes impossible. That justifies the danger that still largely filled color cartridges become unusable. Especially this is serious where multi-color printing by one Color only small amounts are needed.

Im Gebrauch der Farbkartusche soll bei pneumatischer Beaufschlagung des Auspreßkolbens der Verschluß öffnen, um Farbe austreten zu lassen, dann aber wieder möglichst dicht schließen. Diese Funktion ist außerordentlich wichtig zur Verwendung der Druckfarbenkartuschen in Druckwerken mit kontinuierlich gesteuerter automatischer Druckfarbenzufuhr in den Farbkasten, da die Farbkartuschen während der ganzen Dauer der Druckarbeit in den pneumatischen Auspreßvorrichtungen eingesetzt bleiben und die Farbe richtig dosiert und ohne Nachtropfen in den Farbkasten zugeführt werden soll und insbesondere zwischen den Farbaustrittsimpulsen kein Luftzutritt in die Kartusche durch irgendwelche Undichtigkeiten am Kartuschenverschluß möglich sein soll.Use of the color cartridge is intended for pneumatic loading of the ejector piston open the shutter to paint to let out, but then again as close as possible conclude. This function is extremely important for Use of the ink cartridges in printing units with continuous controlled automatic ink supply in the color box, since the color cartridges throughout Duration of the printing work in the pneumatic squeezing devices stay inserted and the color dosed correctly and should be fed into the ink fountain without dripping and in particular, no air admission between the color exit pulses into the cartridge due to any leaks on the Cartridge closure should be possible.

Aufgabe der Erfindung ist es daher, einen Kartuschenverschluß mit Ventilfunktion zu schaffen, der diesen Anforderungen in optimaler Weise gerecht wird.The object of the invention is therefore a cartridge closure with valve function to meet these requirements in in an optimal way.

Diese Aufgabe wird gemäß der Erfindung durch den im Patentananspruch 1 angegebenen Kartuschenverschluß gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved according to the invention by the claim 1 specified cartridge closure released. Advantageous embodiments of the invention are the subject of subclaims.

Ein Ausführungsbeispiel der Erfindung ist in den anliegenden Zeichnungen dargestellt und wird im folgenden in seinen Einzelheiten beschrieben. In den Zeichnungen zeigt:

Fig. 1
einen Kartuschenverschluß nach der Erfindung im Axialschnitt im geschlossenen Zustand,
Fig. 2
einen Axialschnitt ähnlich Fig. 1, jedoch bei abgenommenem Verschlußdeckel, wobei der rechte Halbschnitt den Kartuschenverschluß im geschlossenen Zustand und der linke Halbschnitt den Kartuschenverschluß im geöffneten Zustand zeigt,
Fig. 3
die Ventilhülse des Kartuschenverschlusses nach den Fig. 1 und 2 in Seitenansicht, und
Fig. 4
die Ventilhülse nach Fig. 3 im Querschnitt in der Ebene IV - IV in Fig. 3,
die Fig. 5A und 5B
ein Detail der Abdichtung.
An embodiment of the invention is illustrated in the accompanying drawings and will be described in detail below. In the drawings:
Fig. 1
a cartridge closure according to the invention in axial section in the closed state,
Fig. 2
2 shows an axial section similar to FIG. 1, but with the closure cover removed, the right half section showing the cartridge closure in the closed state and the left half section showing the cartridge closure in the open state,
Fig. 3
the valve sleeve of the cartridge closure according to FIGS. 1 and 2 in side view, and
Fig. 4
3 in cross section in the plane IV - IV in Fig. 3,
Figures 5A and 5B
a detail of the waterproofing.

Die Zeichnungen sind etwa im Maßstab 3 zu 1 gehalten, zeigen also den Kartuschenverschluß in entsprechender Vergrößerung, damit die Einzelheiten deutlicher sichtbar werden.The drawings are kept at about 3 to 1 scale, show the cartridge closure in a corresponding enlargement, so that the details are more clearly visible.

Im Axialschnitt nach den Fig. 1 und 2 ist ein Ausschnitt der Stirnwand 1 der Kartusche mit dem einstückig angeformten Mundstückhals 2 dargestellt. An dem Mundstückhals 2 ist außen ein mehrgängiges Schraubgewinde 3 angeformt. Außerdem sind einstückig mit dem Mundstückhals 2 ausgebildete, nach innen vorspringende dünne Rippen 4 vorhanden, die einen ebenfalls einstückig damit ausgebildeten mittigen Zentralkörper 5 tragen, der etwa die Form eines Kugelsegments oder eine ähnliche gewölbte Form aufweist. Die von Mundstückhals und Zentralkörper gebildete Austrittsöffnung des Kartuschenmundstücks hat also die Form einer ringförmigen Schlitzöffnung 6 zwischen dem Mundstückhals 2 und dem Zentralkörper 5. In the axial section according to FIGS. 1 and 2 is a section of the End wall 1 of the cartridge with the one-piece molded Mouthpiece neck 2 shown. On the mouthpiece neck 2 is outside a multi-start screw thread 3 is formed. Also are integrally formed with the mouthpiece neck 2, inside protruding thin ribs 4 present, which also one bear central central body 5 formed integrally therewith, which is about the shape of a spherical segment or the like has a domed shape. The mouthpiece neck and central body has formed outlet opening of the cartridge mouthpiece thus the shape of an annular slot opening 6 between the mouthpiece neck 2 and the central body 5.

Auf dem Mundstückhals 2 ist die in Fig. 3 in der Seitenansicht und in Fig. 4 im Querschnitt dargestellte Ventilhülse 7 aufgesetzt. Diese Ventilhülse 7 besteht aus einem oberen Teil 8, der, wie die Fig. 1 und 2 zeigen, den oberen Rand des Mundstückhalses 2 mit einem U-Profil übergreift, dessen innerer Schenkel eine etwas bogenförmig nach außen gewölbte, zum freien Ende hin verjüngte elastische Dichtlippe 14 bildet, die sich dichtend an die Innenwandung des Mundstückhalses 2 anlegt, und aus einem unteren Ringteil 9, das hinter einer Anzahl von oberhalb der Gewindegänge 3 an der Außenseite des Mundstückhalses 2 angeformten Rastnasen 10 einrastet. Der Oberteil 8 und der Ringteil 9 der Ventilhülse 7 sind durch Gruppen von S-förmigen Wandstegen 11 miteinander verbunden, die den in Fig. 3 dargestellten Verlauf haben. Der Querschnitt nach Fig. 4 zeigt, daß drei Gruppen solcher Materialstege 11 am Umfang der Ventilhülse 7 verteilt angeordnet sind.On the mouthpiece neck 2 is the side view in FIG. 3 and valve sleeve 7 shown in cross section in FIG. 4 put on. This valve sleeve 7 consists of an upper part 8, which, as FIGS. 1 and 2 show, the upper edge of the Mouthpiece neck 2 engages with a U-profile, the inner Thigh a slightly arched outward to the forms free end tapered elastic sealing lip 14, sealing against the inner wall of the mouthpiece neck 2 creates, and from a lower ring part 9, which behind a Number from above the threads 3 on the outside of the Mouthpiece neck 2 molded latches 10 snaps into place. The Upper part 8 and the ring part 9 of the valve sleeve 7 are through Groups of S-shaped wall webs 11 connected to one another, which have the course shown in Fig. 3. The cross section 4 shows that three groups of such material webs 11 distributed around the circumference of the valve sleeve 7 are.

Die aus Fig. 3 ersichtliche Form der Materialstege 11 ergibt, wie man leicht erkennt, eine gewisse axiale Elastizität der Ventilhülse 7 in dem Sinne, daß der Oberteil 8 und der Ringteil 9 in gewissem Maße axial auseinandergezogen werden können, wobei die S-förmig geschwungenen Wandstege 11 wie Blattfedern wirken.3 shows the shape of the material webs 11, as you can easily see, a certain axial elasticity of the Valve sleeve 7 in the sense that the upper part 8 and the ring part 9 can be pulled apart axially to a certain extent, the S-shaped curved wall webs 11 like leaf springs Act.

Der Oberteil 8 der Ventilhülse 7 hat eine konisch verlaufende einwärts vorspringende Lippe 12, die, wie die Fig. 1 und 2 zeigen, als Dichtlippe mit dem Zentralkörper 5 des Kartuschenmundstücks zusammenwirkt.The upper part 8 of the valve sleeve 7 has a conical shape inwardly projecting lip 12 which, like FIGS. 1 and 2 show, as a sealing lip with the central body 5 of the cartridge mouthpiece cooperates.

Auf das Schraubgewinde 3 des Mundstückhalses 2 ist, wie in Fig. 1 dargestellt ist, ein Verschlußdeckel 13 aufschraubbar, der bei Nichtgebrauch der Kartusche den absolut luftdichten Abschluß des KartuschenmundstückS sichert.On the screw thread 3 of the mouthpiece neck 2, as in 1 is shown, a closure cap 13 can be screwed on, which is absolutely airtight when the cartridge is not in use Securing the end of the cartridge mouthpiece.

Die Funktion des Kartuschenverschlusses mit Ventilfunktion ist folgendermaßen: The function of the cartridge closure with valve function is as follows:

Wird, nachdem der Verschlußdeckel 13 abgenommen wurde, beispielsweise durch pneumatische Beaufschlagung, ein Druck auf den Kartuscheninhalt ausgeübt, wird dieser Druck durch den Ringspalt 6 zwischen dem Mundstückhals 2 und dem Zentralkörper 5 auf dem Oberteil 8 mit der Lippe 12 der Ventilhülse 7 übertragen. Der Ringteil 9 der Ventilhülse 7 ist fest hinter den Rastnasen 10 des Mundstückhalses eingerastet, kann sich also nicht axial bewegen. Unter dem herrschenden Druck kann aber aufgrund der durch die Form der Randstege 11 gegebenen inneren axialen Elastizität der Ventilhülse 7 deren Oberteil 8 axial vorbewegt werden, wodurch sich zwischen der Lippe 12 und dem Zentralkörper 5 ein Ringspalt öffnet und Druckfarbe austreten kann. Dieser Zustand ist in Fig. 2 im linken Halbschnitt dargestellt, während der rechte Halbschnitt den Schließzustand zeigt.After the cover 13 has been removed, for example by pneumatic action, a pressure this pressure is exerted on the contents of the cartridge the annular gap 6 between the mouthpiece neck 2 and the Central body 5 on the upper part 8 with the lip 12 of the valve sleeve 7 transferred. The ring part 9 of the valve sleeve 7 is firmly locked behind the locking lugs 10 of the mouthpiece neck, cannot move axially. Under the ruling However, due to the shape of the edge webs 11 given internal axial elasticity of the valve sleeve 7 whose Upper part 8 are moved axially, which is between the Lip 12 and the central body 5 opens an annular gap and Ink can leak. This state is in Fig. 2 in left half section shown, while the right half section shows the closed state.

Die Axialbewegung des Ventilhülsenoberteils 8 beim Öffnungsvorgang erfolgt dadurch, daß das Oberteil 8 auf dem von der Verbindung mit den Rippen 4 aus nach oben vorspringenden Teil des Mundstückhalses 2 geführt wird und gleitet, da dieser vorspringende Mundstückhalsendteil von dem U-Profil des Ventilhülsenoberteils 8 umgriffen wird und insbesondere die innere Dichtlippe 14 an der Mundstückhalsinnenwand gleitet.The axial movement of the valve sleeve upper part 8 during the opening process takes place in that the upper part 8 on the of Connection with the ribs 4 from the projecting part of the mouthpiece neck 2 is guided and slides, since this projecting mouthpiece neck end part from the U-profile of the valve sleeve upper part 8 is encompassed and in particular the inner Sealing lip 14 slides on the inner wall of the mouthpiece neck.

Läßt der Druck auf den Kartuscheninhalt nach, bewirkt die Rückstellkraft der als Feder wirkenden Wandstege 11 die Rückstellbewegung des Ventilhülsenoberteils 8 und damit das Wiederanlegen der Lippe 12 an den Zentralkörper 5 und somit das Verschließen der Spaltöffnung (rechter Halbschnitt in Fig. 2).If the pressure on the cartridge content decreases, this causes Restoring force of the wall webs 11 acting as a spring, the restoring movement of the valve sleeve upper part 8 and thus the reinstallation the lip 12 to the central body 5 and thus that Closing the gap opening (right half section in Fig. 2).

Der in Fig. 1 dargestellte Verschlußdeckel 13, der mit einem komplementären mehrgängigen Innengewinde auf das mehrgängige Außenschraubgewinde 3 des Mundstückhalses 2 aufschraubbar ist, sichert den absolut luftdichten Abschluß der Kartusche bei Lagerung und Transport bis zum Gebrauch der Kartusche sowie bei der Aufbewahrung einer angebrochenen Kartusche. Der Verschlußdeckel 13 drückt die Lippe 12 der Ventilhülse 7 fest gegen den Zentralkörper 5 und legt sich auch im übrigen an Gegenflächen des Ventilhülsenoberteils 8 an. Wie aus Fig. 1 ersichtlich ist, liegt die Innenwand des Verschlußdeckels 13 mit zwei abgestuft angeordneten Ringbereichen an entsprechenden Stirnflächenbereichen der Ventilhülse 7 an Stellen an, die in ihrer Radialposition der Lage des U-Profils des Ventilhülsenoberteils 8 und dem damit zusammenwirkenden Mundstückhalsende entspricht, so daß das U-Profil des Ventilhülsenoberteils 8 fest auf das Stirnende des Mundstückhalses 2 gedrückt wird. Wie aus den Fig. 1 und 2 ersichtlich ist, ist der Innenkrümmungsradius des U-Profils kleiner als der Außenkrümmungsradius des Mundstückhalsstirnendes, so daß das Zusammenwirken entlang von zwei Berührungslinien erfolgt. Ein Vergleich des rechten Halbschnitts in Fig. 2 mit dem Axialschnitt nach Fig. 1 zeigt deutlich den Unterschied der relativen Stellungen des U-Profils des Ventilhülsenoberteils 8 und des Mundstückhalsendes bei abgenommenem Verschlußdeckel 13 (Fig. 2) und bei durch den aufgeschraubten Verschlußdeckel aufgepreßter Ventilhülse (Fig. 1).The closure cap 13 shown in Fig. 1, with a complementary multi-thread on the multi-thread External screw thread 3 of the mouthpiece neck 2 can be screwed on ensures the absolutely airtight seal of the cartridge during storage and transport until the cartridge is used as well as when storing a opened cartridge. The Closure cover 13 presses the lip 12 of the valve sleeve 7 firmly against the central body 5 and also puts on the rest Mating surfaces of the valve sleeve upper part 8. As from Fig. 1 can be seen, the inner wall of the closure lid 13th with two graded ring areas on corresponding End face areas of the valve sleeve 7 at points, in their radial position the position of the U-profile of the valve sleeve upper part 8 and the cooperating mouthpiece neck end corresponds so that the U-profile of the valve sleeve upper part 8 firmly on the front end of the mouthpiece neck 2 is pressed. As can be seen from FIGS. 1 and 2, is the radius of curvature of the U-profile is smaller than the radius of curvature of the mouthpiece neck end so that the interaction along two lines of contact. On Comparison of the right half section in Fig. 2 with the axial section 1 clearly shows the difference of the relative Positions of the U-profile of the valve sleeve upper part 8 and the mouthpiece neck end with the cover removed 13 (Fig. 2) and at the screwed on cover pressed valve sleeve (Fig. 1).

Die Fig. 5A und 5B zeigen im Detail eine vorteilhafte Weiterbildung der Anordnung des Mundstückhalses 2 und der Dichtlippe 14 der Ventilhülse 7 in stark vergrößerter Darstellung. Dabei zeigt Fig. 5A die Position der Dichtlippe 14 in der Schließstellung der Ventilhülse 7 und Fig. 5B die Position der Dichtlippe 14 in der geöffneten Position der Ventilhülse 7.5A and 5B show an advantageous further development in detail the arrangement of the mouthpiece neck 2 and the sealing lip 14 of the valve sleeve 7 in a greatly enlarged illustration. 5A shows the position of the sealing lip 14 in the Closed position of the valve sleeve 7 and Fig. 5B the position the sealing lip 14 in the open position of the valve sleeve 7.

Wie man sieht, hat die Innenwandfläche des Mundstückhalses 2 einen Absatz in Form einer schräger Rampe 2A, womit sich der Innendurchmesser des Mundstückhalses von einem engeren Durchmesser im oberen Bereich auf einen etwas weiteren Durchmesser im unteren Bereich erweitert. Der Absatz 2A ist so angeordnet, daß in der Schließstellung der Ventilhülse 7 die Dichtlippe 14 an dem im Durchmesser größeren Innenwandbereich anliegt, daß aber während der Öffnungsbewegung der Ventilhülse 7 die Dichtlippe 14 über den Absatz 2A auf den im Durchmesser kleineren Wandbereich des Mundstückhalses 2 aufgleitet. As can be seen, the inner wall surface of the mouthpiece neck 2 a paragraph in the form of an inclined ramp 2A, with which the Inner diameter of the mouthpiece neck of a narrower diameter in the upper area to a slightly wider diameter expanded in the lower area. Paragraph 2A is arranged so that in the closed position of the valve sleeve 7, the sealing lip 14 rests on the inner wall area with a larger diameter, that but during the opening movement of the valve sleeve 7 the sealing lip 14 over the paragraph 2A on the diameter smaller wall area of the mouthpiece neck 2 slides on.

Damit erhält man die Wirkung, daß in der geöffneten Stellung der Ventilhülse 7 die Dichtlippe 14 mit stärkerer Vorspannung an der Mundstückhalsinnenwandung anliegt als im geschlossenen Zustand. Dies ist deshalb wichtig, weil die Öffnung der Ventilhülse 7 durch Druckausübung auf den Kartuscheninhalt erreicht wird und die Abdichtung bei größerer Druckbeaufschlagung des Kartuscheninhalts kritischer ist als bei Druckentlastung des Kartuscheninhalts, die herrscht, wenn die Ventilhülse 7 sich in der Schließstellung befindet und die Dichtlippe 14 die Position in Fig. 5A einnimmt. Daß in dieser Schließposition die Dichtlippe 14 entspannter als in der in Fig. 5B dargestellen Offenstellung ist, hat auch den Vorteil, daß die Spannung der Dichtlippe 14 nicht durch über längere Zeit stattfindende Fließvorgänge in der Molekularstruktur des Kunststoffmaterials nachläßt.This gives the effect of being in the open position the valve sleeve 7, the sealing lip 14 with a stronger bias rests on the inner wall of the mouthpiece neck than in the closed one Status. This is important because the opening of the valve sleeve 7 achieved by exerting pressure on the cartridge contents and the seal with greater pressure the content of the cartridge is more critical than with pressure relief of the cartridge content that prevails when the valve sleeve 7 is in the closed position and the sealing lip 14 takes the position in Fig. 5A. That in this Closed position, the sealing lip 14 more relaxed than in the in 5B is the open position, also has the advantage that the tension of the sealing lip 14 is not due to longer Flowing processes in the molecular structure of the Plastic material wears off.

Claims (11)

Kartuschenverschluß mit Ventilfunktion, insbesondere für Druckfarbenkartuschen aus Kunststoff, mit folgenden Merkmalen: a) an einem Mundstückhals (2) der Kartuschenstirnwand (1) ist über nach innen vorspringende Rippen (4) ein nach außen gewölbter mittiger Zentralkörper (5) verbunden, b) der Mundstückhals (2) weist einen über den Verbindungsbereich mit den Rippen (4) vorstehenden zylindrischen Endabschnitt auf, der etwa in Höhe des Umfangs des Zentralkörpers (5) endigt und mit diesem eine Schlitzöffnung (6) begrenzt, c) auf dem Mundstückhals (2) sitzt eine Ventilhülse (7), die einen unteren, mit dem Mundstückhals axial verrasteten (10) Ringteil (9) und einen damit über Wandstege (11) verbundenen Oberteil (8) aufweist, der eine mit dem Zentralkörper (5) zusammenwirkende Dichtlippe (12) aufweist, d) die Wandstege (11) bewirken eine in Axialrichtung federelastische Verbindung zwischen dem unteren Ringteil (9) und dem Oberteil (8) der Ventilhülse (7). Cartridge closure with valve function, especially for plastic ink cartridges, with the following features: a) an outwardly curved central body (5) is connected to a mouthpiece neck (2) of the cartridge end wall (1) via inwardly projecting ribs (4), b) the mouthpiece neck (2) has a cylindrical end section projecting beyond the connection area with the ribs (4), which ends approximately at the level of the circumference of the central body (5) and delimits a slot opening (6) therewith, c) on the mouthpiece neck (2) sits a valve sleeve (7), which has a lower, axially locked with the mouthpiece neck (10) ring part (9) and an upper part (8) connected to it via wall webs (11), one with the Central body (5) has interacting sealing lip (12), d) the wall webs (11) bring about an axially resilient connection between the lower ring part (9) and the upper part (8) of the valve sleeve (7). Kartuschenverschluß nach Anspruch 1, wobei ein den Zentalkörper (5) und die Ventilhülse (7) übergreifender Verschlußdeckel (13) auf den Mundstückhals (2) aufschraubbar ist.A cartridge closure according to claim 1, wherein the central body (5) and the valve sleeve (7) overlapping cover (13) can be screwed onto the mouthpiece neck (2). Kartuschenverschluß nach Anspruch 1 oder 2, wobei die Wandstege (11) zwischen dem unteren Ringteil (9) und dem Oberteil (8) der Ventilhülse (7) jeweils einen etwa S-förmigen Verlauf mit einer Ausdehnung in Umfangsrichtung der Ventilhülse haben. Cartridge closure according to claim 1 or 2, wherein the Wall webs (11) between the lower ring part (9) and the Upper part (8) of the valve sleeve (7) each has an approximately S-shaped Course with an expansion in the circumferential direction of the Have valve sleeve. Kartuschenverschluß nach Anspruch 3, wobei die S-förmig verlaufenden Wandstege (11) jeweils paarweise oder doppelpaarweise mit gegensinnigem Umfangsrichtungsverlauf in mehreren am Hülsenumfang verteilten Gruppen angeordnet sind.A cartridge closure according to claim 3, wherein the S-shaped running wall webs (11) in pairs or in pairs with opposite circumferential direction in several groups distributed around the sleeve circumference are arranged. Kartuschenverschluß nach einem der Ansprüche 1 bis 4, wobei der untere Ringteil (9) der Ventilhülse (7) mit einer Anzahl von am Umfang verteilten Rastöffnungen ausgebildet ist, die über am Außenumfang des Mundstückhalses (2) gebildeten Rastnasen (10) einrastbar sind.Cartridge closure according to one of claims 1 to 4, wherein the lower ring part (9) of the valve sleeve (7) with a Number of locking openings distributed around the circumference is that formed on the outer circumference of the mouthpiece neck (2) Lugs (10) can be snapped into place. Kartuschenverschluß nach einem der Ansprüche 1 bis 5, wobei der Oberteil (8) der Ventilhülse (7) mit einem den oberen Endbereich des Mundstückhalses (2) übergreifenden U-Profil ausgebildet ist.Cartridge closure according to one of claims 1 to 5, wherein the upper part (8) of the valve sleeve (7) with a upper end area of the mouthpiece neck (2) overlapping U-profile is trained. Kartuschenverschluß nach Anspruch 6, wobei der innere U-Schenkel des U-Profils als mit der Innenwandfläche des Mundstückhalses (2) zusammenwirkende elastische Dichtlippe (14) ausgebildet ist.A cartridge closure according to claim 6, wherein the inner U-leg of the U-profile than with the inner wall surface of the mouthpiece neck (2) cooperating elastic sealing lip (14) is trained. Kartuschenverschluß nach Anspruch 6 oder 7, wobei das U-Profil des Oberteils (8) der Ventilhülse (7) und das Profil des freien Stirnendes des Mundstückhalses (2) derart komplementär ausgebildet sind, daß sich zwischen beiden eine doppelte linienförmige Berührung längs zweier konzentrischer ringförmiger Berührungslinien ergibt.Cartridge closure according to claim 6 or 7, wherein the U-profile of the upper part (8) of the valve sleeve (7) and the profile the free end of the mouthpiece neck (2) so complementary are trained that a between double linear contact along two concentric annular contact lines results. Kartuschenverschluß nach einem der Ansprüche 2 bis 8, wobei der Verschlußdeckel (13) einen Innenwandbereich aufweist, der beim Aufschrauben des Verschlußdeckels auf den Mundstückhals (2) die Dichtlippe (12) des Oberteils (8) der Ventilhülse (7) gegen den Zentralkörper (5) spannt.Cartridge closure according to one of claims 2 to 8, wherein the closure cover (13) has an inner wall area, the when screwing the cap on Mouthpiece neck (2) the sealing lip (12) of the upper part (8) of the Valve sleeve (7) clamps against the central body (5). Kartuschenverschluß nach einem der Ansprüche 6 bis 9, wobei der Verschlußdeckel (13) einen Innenwandbereich aufweist, der beim Aufschrauben des Verschlußdeckels (13) auf den Mundstückhals (2) das U-Profil des Oberteils (8) der Ventilhülse (7) gegen das freie Stirnende des Mundstückhalses (2) spannt.A cartridge closure according to any one of claims 6 to 9, wherein the closure cover (13) has an inner wall area, that when screwing the cap (13) onto the mouthpiece neck (2) the U-profile of the upper part (8) of the valve sleeve (7) against the free end of the mouthpiece neck (2). Kartuschenverschluß nach einem der Ansprüche 1 bis 10, wobei der Mundstückhals (2) an seiner Innenwandfläche einen derart positionierten, durch eine Durchmesserveränderung gebildeten Absatz bzw. Übergang (2a) aufweist, daß die Dichtlippe (14), wenn die Ventilhülse (7) sich in einer hinteren Schließstellung befindet, mit einem im Durchmesser größeren Innenwandbereich des Mundstückhalses und, wenn die Ventilhülse (7) axial in eine vorgeschobene Öffnungsstellung ausgelenkt ist, mit einem jenseits des Absatzes bzw. Übergangs (2a) gelegenen, im Durchmesser kleineren Innenwandbereich des Mundstückhalses zusammenwirkt.Cartridge closure according to one of claims 1 to 10, the mouthpiece neck (2) on its inner wall surface positioned in this way, formed by a change in diameter Heel or transition (2a) that the sealing lip (14) when the valve sleeve (7) is in a rear Is in the closed position, with a larger diameter Inner wall area of the mouthpiece neck and when the valve sleeve (7) axially deflected into an advanced open position is, with a beyond the paragraph or transition (2a) located, smaller in diameter inner wall area of the Mouthpiece interacts.
EP99117702A 1998-12-05 1999-09-08 Cartridge closure with valve function Expired - Lifetime EP1005999B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19856221 1998-12-05
DE19856221 1998-12-05

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EP1005999A3 EP1005999A3 (en) 2000-10-18
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US (1) US6309059B1 (en)
EP (1) EP1005999B1 (en)
JP (1) JP3423655B2 (en)
AT (1) ATE209572T1 (en)
AU (1) AU726797B2 (en)
CA (1) CA2291491C (en)
DE (2) DE19936482A1 (en)
ES (1) ES2169586T3 (en)

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WO2002028641A1 (en) * 2000-10-02 2002-04-11 Sonoco Development, Inc. Ink cartridge valve system
WO2003021139A2 (en) 2001-08-31 2003-03-13 Sonoco Development, Inc. Pressure-activated flexible valve
EP1414651A2 (en) * 2001-08-10 2004-05-06 Sonoco Development, Inc. Ink cartridge with self-closing valve
DE102005045809A1 (en) * 2005-09-27 2007-03-29 Schoeller Arca Systems Services Gmbh Cartridge for transporting liquid into pasty substances, has outlet locked and/or released based on movement of valve body that is axially movable and guided in mouth piece by fastening bolt, and hollow space sealed between body and bolt
CN104609009A (en) * 2006-06-21 2015-05-13 万通集团公司 Dispensing system with a dispensing valve having a projecting, reduced size discharge end
CN111225858A (en) * 2017-12-21 2020-06-02 京洛株式会社 Cap and laminated peeling container

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DE10214726B9 (en) 2002-04-03 2004-10-21 Asian Printing & Packing Technology Pte Ltd. cartridge
US6896151B1 (en) 2002-11-04 2005-05-24 Owens-Illinois Closure Inc. Self-closing fluid dispensing closure
US6913168B2 (en) * 2003-07-11 2005-07-05 Sonoco Development, Inc. Twist lock valve for fluid dispensing cartridges
GB2405683A (en) * 2003-09-05 2005-03-09 Comm Corp Ltd I Valve for a cartridge
US20060231580A1 (en) * 2005-04-13 2006-10-19 Sonoco Development, Inc. Twist lock fluid dispensing valve
US20150109381A1 (en) * 2010-12-27 2015-04-23 North America Wales Group International Ltd. Ink supply valve device
DE102011007396A1 (en) * 2011-04-14 2012-10-18 Ing. Erich Pfeiffer Gmbh Discharge head for a tube and tube with discharge head
DE102013017096A1 (en) 2012-11-06 2014-05-08 Heidelberger Druckmaschinen Ag Pre-chamber of adapter used for combining pressing out device and cartridge used in printing machine, has one valve which is inserted into pressing out device and other valve which is arranged at lower end of pre-chamber

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
WO2002028641A1 (en) * 2000-10-02 2002-04-11 Sonoco Development, Inc. Ink cartridge valve system
AU2001296543B2 (en) * 2000-10-02 2005-02-10 Sonoco Development, Inc. Ink cartridge valve system
EP1414651A2 (en) * 2001-08-10 2004-05-06 Sonoco Development, Inc. Ink cartridge with self-closing valve
EP1414651A4 (en) * 2001-08-10 2005-12-21 Sonoco Dev Inc Ink cartridge with self-closing valve
WO2003021139A2 (en) 2001-08-31 2003-03-13 Sonoco Development, Inc. Pressure-activated flexible valve
US6547108B2 (en) 2001-08-31 2003-04-15 Sonoco Development, Inc. Pressure-activated flexible valve
DE102005045809A1 (en) * 2005-09-27 2007-03-29 Schoeller Arca Systems Services Gmbh Cartridge for transporting liquid into pasty substances, has outlet locked and/or released based on movement of valve body that is axially movable and guided in mouth piece by fastening bolt, and hollow space sealed between body and bolt
EP1800870A2 (en) 2005-09-27 2007-06-27 Schoeller Arca Systems Services GmbH Cartridge provided with a valve closure
CN104609009A (en) * 2006-06-21 2015-05-13 万通集团公司 Dispensing system with a dispensing valve having a projecting, reduced size discharge end
CN104609009B (en) * 2006-06-21 2017-04-26 万通集团公司 Dispensing system with a dispensing valve having a projecting, reduced size discharge end
CN111225858A (en) * 2017-12-21 2020-06-02 京洛株式会社 Cap and laminated peeling container
CN111225858B (en) * 2017-12-21 2022-08-02 京洛株式会社 Cap and laminated peeling container

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Publication number Publication date
US6309059B1 (en) 2001-10-30
CA2291491A1 (en) 2000-06-05
JP3423655B2 (en) 2003-07-07
EP1005999B1 (en) 2001-11-28
ES2169586T3 (en) 2002-07-01
AU6313699A (en) 2000-06-22
DE59900454D1 (en) 2002-01-10
DE19936482A1 (en) 2000-06-21
JP2000198182A (en) 2000-07-18
AU726797B2 (en) 2000-11-23
CA2291491C (en) 2003-12-02
EP1005999A3 (en) 2000-10-18
ATE209572T1 (en) 2001-12-15

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