EP0755795A2 - Apparatus for filling a liquid in a container - Google Patents

Apparatus for filling a liquid in a container Download PDF

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Publication number
EP0755795A2
EP0755795A2 EP96810248A EP96810248A EP0755795A2 EP 0755795 A2 EP0755795 A2 EP 0755795A2 EP 96810248 A EP96810248 A EP 96810248A EP 96810248 A EP96810248 A EP 96810248A EP 0755795 A2 EP0755795 A2 EP 0755795A2
Authority
EP
European Patent Office
Prior art keywords
container
cylinder
liquid
hollow needle
ink
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
EP96810248A
Other languages
German (de)
French (fr)
Other versions
EP0755795A3 (en
EP0755795B1 (en
Inventor
Markus Moser
Luzius Betschon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pelikan Hardcopy Production AG
Original Assignee
Pelikan Produktions AG
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Filing date
Publication date
Application filed by Pelikan Produktions AG filed Critical Pelikan Produktions AG
Publication of EP0755795A2 publication Critical patent/EP0755795A2/en
Publication of EP0755795A3 publication Critical patent/EP0755795A3/en
Application granted granted Critical
Publication of EP0755795B1 publication Critical patent/EP0755795B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41J2/17506—Refilling of the cartridge

Definitions

  • a device for refilling ink into a print head of an ink jet printer comprises two cylinders arranged side by side. One contains ink, the other a piston and acts as a suction pump when it is filled. Hollow needles protrude from the cylinders and are inserted into the printhead container. The tips of the hollow needles are protected by pins which are pulled off before use.
  • the present invention has for its object to improve this device. This object is achieved by the combination of features of the claims.
  • the device according to Figures 1 and 2 comprises a cylinder 1 which is only a fraction, i.e. is less than half full of Ink 2.
  • a piston 3 with a piston rod 4 which has a grip head 5 at the free end, is located directly above the ink 2.
  • a hollow needle 6 with a sealing ring 7 is attached to the cylinder 1 at the lower end.
  • the nozzle openings 11 are first sealed airtight with a sealing cap 12.
  • the hollow needle 6 is inserted until the sealing ring 7 is in sealing contact with the lid 13.
  • the piston 3 is then raised to the position shown in FIG. 2.
  • Part of the air in the printhead 10 is sucked through the ink.
  • the grip head 5 is released, the ink 2 is now sucked into the print head 10 by the negative pressure prevailing therein.
  • the cylinder 1 can have an air supply opening 8 adjacent to its upper end. Through this air flows in as soon as the piston 3 has reached its upper end position shown in FIG. 2.
  • the device described is considerably simpler than that according to the above-mentioned DE-GM 295 02 908 and only requires a single opening in the lid 13 of the print head 10, which is usually present anyway. It has been shown that by sucking the ink into the foam body 32 under vacuum, the latter can be filled considerably more efficiently and a decrease in the filling capacity after several fillings can be avoided. This is attributed to the fact that the vacuum is sucked out of the air in the air-filled pores of the foam body 32.
  • FIGS. 3 to 6 differs mainly from that according to FIGS. 1 and 2 in that, in the delivery state, a pin 20 is plugged onto the free end of the hollow needle 6 and is pierced through the cover 13 of the print head 10 when the hollow needle 6 is inserted .
  • the pin 20 is centered in a conical countersink 22 arranged coaxially with the opening 21 in the cover 13. This configuration ensures that the pin 20 does not have to be removed before the needle 6 is inserted! In the event of overpressure of the ink 2 in the cylinder 1, no ink can thus spray from the needle 6 into the surroundings.
  • This embodiment is also suitable for filling the printhead with pressure, so that the piston 3 is not first pulled up, but is pressed down. This requires that the printhead is not airtight.
  • the pin 20 also serves as a stop when the needle 6 is inserted so that it penetrates to the optimum height within the print head 10.
  • the device described is also suitable for filling other containers with liquid, e.g. in the medical field.

Landscapes

  • Ink Jet (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)

Abstract

The filling device has a cylinder (1) which is less than half full with ink (2), containing a sliding piston (3) operated by a grip (5) at the end of a piston rod (4) projecting from the cylinder. The bottom end of the cylinder is fitted with a hollow needle (6) for insertion in the ink-jet printer head via an opening in its cover (13), engaged by a sealing ring (7) fitted to the upper end of th needle.

Description

Aus dem DE-GM 295 02 908 ist eine Vorrichtung zum Nachfüllen von Tinte in einen Druckkopf eines Ink-Jet-Printers bekannt. Sie umfasst zwei nebeneinander angeordnete Zylinder. Der eine enthält Tinte, der andere einen Kolben und wirkt beim Befüllen als Saugpumpe. Von den Zylindern stehen Hohlnadeln ab, die in den Behälter des Druckkopfs eingesteckt werden. Die Spitzen der Hohlnadeln sind durch Zapfen geschützt, welche vor dem Gebrauch abgezogen werden.From DE-GM 295 02 908 a device for refilling ink into a print head of an ink jet printer is known. It comprises two cylinders arranged side by side. One contains ink, the other a piston and acts as a suction pump when it is filled. Hollow needles protrude from the cylinders and are inserted into the printhead container. The tips of the hollow needles are protected by pins which are pulled off before use.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, diese Vorrichtung zu verbessern. Diese Aufgabe wird durch die Merkmalskombination der Ansprüche gelöst.The present invention has for its object to improve this device. This object is achieved by the combination of features of the claims.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnungen erläutert. Darin zeigt:

  • Figuren 1 und 2 eine erste Ausführungsform, und
  • Figuren 3 bis 6 eine zweite Ausführungsform.
An exemplary embodiment of the invention is explained below with reference to the drawings. It shows:
  • Figures 1 and 2 a first embodiment, and
  • Figures 3 to 6 a second embodiment.

Die Vorrichtung nach Figuren 1 und 2 umfasst einen Zylinder 1, der nur zu einem Bruchteil, d.h. zu weniger als der Hälfte mit Tinte 2 gefüllt ist. Im Ausgangszustand (Figur 1) befindet sich unmittelbar oberhalb der Tinte 2 ein Kolben 3 mit einer Kolbenstange 4, die am freien Ende einen Griffkopf 5 aufweist. Am unteren Ende ist am Zylinder 1 eine Hohlnadel 6 angebracht mit einem Dichtring 7.The device according to Figures 1 and 2 comprises a cylinder 1 which is only a fraction, i.e. is less than half full of Ink 2. In the initial state (FIG. 1), a piston 3 with a piston rod 4, which has a grip head 5 at the free end, is located directly above the ink 2. A hollow needle 6 with a sealing ring 7 is attached to the cylinder 1 at the lower end.

Zum Nachfüllen des Druckkopfs 10 werden zunächst dessen Düsenöffnungen 11 mit einer Dichtkappe 12 luftdicht verschlossen. Durch eine Oeffnung im Deckel 13 des Druckkopfs 10 wird die Hohlnadel 6 bis zur abdichtenden Anlage des Dichtrings 7 am Deckel 13 eingesteckt. Anschliessend wird der Kolben 3 in die Position nach Figur 2 hochgezogen. Dabei wird ein Teil der Luft im Druckkopf 10 durch die Tinte hindurch abgesaugt. Beim Loslassen des Griffkopfs 5 wird nun die Tinte 2 in den Druckkopf 10 durch den darin herrschenden Unterdruck eingesaugt. Um das Einfliessen der Tinte 2 zu erleichtern kann der Zylinder 1 benachbart seinem oberen Ende eine Luftzufuhröffnung 8 haben. Durch diese strömt Luft ein, sobald der Kolben 3 seine in Fig. 2 dargestellte obere Endstellung erreicht hat.To refill the print head 10, its nozzle openings 11 are first sealed airtight with a sealing cap 12. Through an opening in the lid 13 of the print head 10, the hollow needle 6 is inserted until the sealing ring 7 is in sealing contact with the lid 13. The piston 3 is then raised to the position shown in FIG. 2. Part of the air in the printhead 10 is sucked through the ink. When the grip head 5 is released, the ink 2 is now sucked into the print head 10 by the negative pressure prevailing therein. In order to facilitate the inflow of the ink 2, the cylinder 1 can have an air supply opening 8 adjacent to its upper end. Through this air flows in as soon as the piston 3 has reached its upper end position shown in FIG. 2.

Die beschriebene Vorrichtung ist erheblich einfacher als jene gemäss dem eingangs erwähnten DE-GM 295 02 908 und erfordert bloss eine einzige Oeffnung im Deckel 13 des Druckkopfs 10, welche üblicherweise ohnehin vorhanden ist. Es hat sich gezeigt, dass durch das Einsaugen der Tinte unter Vakuum in den Schaumkörper 32 dieser erheblich effizienter gefüllt und ein Absinken der Füllkapazität nach mehreren Füllungen vermieden werden kann. Dies wird darauf zurückgeführt, dass durch den Unterdruck die Luft in den luftgefüllten Poren des Schaumkörpers 32 abgesaugt wird.The device described is considerably simpler than that according to the above-mentioned DE-GM 295 02 908 and only requires a single opening in the lid 13 of the print head 10, which is usually present anyway. It has been shown that by sucking the ink into the foam body 32 under vacuum, the latter can be filled considerably more efficiently and a decrease in the filling capacity after several fillings can be avoided. This is attributed to the fact that the vacuum is sucked out of the air in the air-filled pores of the foam body 32.

Die Ausführungsform nach Figuren 3 bis 6 unterscheidet sich hauptsächlich dadurch von jener nach Figuren 1 und 2, dass im Lieferzustand auf das freie Ende der Hohlnadel 6 ein Zapfen 20 aufgesteckt ist, welcher beim Einstecken der Hohlnadel 6 durch den Deckel 13 des Druckkopfs 10 durchstochen wird. Der Zapfen 20 wird in einer koaxial zur Oeffnung 21 im Deckel 13 angeordneten konischen Ansenkung 22 zentriert. Durch diese Ausbildung wird erreicht, dass der Zapfen 20 vor dem Einstecken der Nadel 6 nicht entfernt werden muss! Damit kann bei einem allfälligen Ueberdruck der Tinte 2 im Zylinder 1 keine Tinte aus der Nadel 6 in die Umgebung spritzen.The embodiment according to FIGS. 3 to 6 differs mainly from that according to FIGS. 1 and 2 in that, in the delivery state, a pin 20 is plugged onto the free end of the hollow needle 6 and is pierced through the cover 13 of the print head 10 when the hollow needle 6 is inserted . The pin 20 is centered in a conical countersink 22 arranged coaxially with the opening 21 in the cover 13. This configuration ensures that the pin 20 does not have to be removed before the needle 6 is inserted! In the event of overpressure of the ink 2 in the cylinder 1, no ink can thus spray from the needle 6 into the surroundings.

Diese Ausführungsform eignet sich auch zum Befüllen des Druckkopfs mit Druck, wo also der Kolben 3 nicht zuerst hochgezogen, sondern hinunter gedrückt wird. Dies setzt voraus, dass der Druckkopf nicht luftdicht ist. Der Zapfen 20 dient gleichzeitig als Anschlag beim Einstecken der Nadel 6, damit diese auf die optimale Höhe innerhalb des Druckkopfs 10 eindringt.This embodiment is also suitable for filling the printhead with pressure, so that the piston 3 is not first pulled up, but is pressed down. This requires that the printhead is not airtight. The pin 20 also serves as a stop when the needle 6 is inserted so that it penetrates to the optimum height within the print head 10.

Die beschriebene Vorrichtung eignet sich auch zum Befüllen anderer Behälter mit Flüssigkeit, z.B. im Medizinalbereich.The device described is also suitable for filling other containers with liquid, e.g. in the medical field.

Claims (5)

Vorrichtung zum Einfüllen einer Flüssigkeit in einen Behälter (10), insbesondere von Tinte in einen Druckkopf eines Ink-Jet-Printers, umfassend einen die Flüssigkeit (2) enthaltenden Zylinder (1), von welchem eine Hohlnadel (6) absteht, gekennzeichnet durch ein Abdichtelement (7,20), das bei in den Behälter (10) eingesteckter Hohlnadel (6) gegen eine Behälterwand (13) abdichtet.Device for filling a liquid into a container (10), in particular ink into a print head of an ink jet printer, comprising a cylinder (1) containing the liquid (2), from which a hollow needle (6) protrudes, characterized by a Sealing element (7, 20) which seals against a container wall (13) when the hollow needle (6) is inserted into the container (10). Vorrichtung nach Anspruch 1, wobei das Abdichtelement durch einen Zapfen (20) gebildet ist, der im Lieferzustand auf die Hohlnadel abdichtend aufgesteckt ist und beim Eindringen der Hohlnadel (6) in den Behälter (10) von dieser durchstochen wird.Apparatus according to claim 1, wherein the sealing element is formed by a pin (20) which, in the delivery state, is plugged onto the hollow needle and is pierced by the latter when the hollow needle (6) penetrates into the container (10). Vorrichtung nach Anspruch 1 oder 2, wobei der Zylinder (1) oberhalb der Flüssigkeit (2) einen Kolben (3) mit Kolbenstange (4) enthält, welche am freien Ende einen Griff (5) aufweist.Apparatus according to claim 1 or 2, wherein the cylinder (1) above the liquid (2) contains a piston (3) with a piston rod (4) which has a handle (5) at the free end. Vorrichtung nach Anspruch 3, wobei die Flüssigkeit (2) nur einen Bruchteil des Zylinders (1) füllt, so dass der Kolben (3) beim Befüllen des Behälters (10) zunächst gezogen werden kann, um Luft aus dem Behälter (10) durch die Flüssigkeit hindurch abzusaugen.Apparatus according to claim 3, wherein the liquid (2) fills only a fraction of the cylinder (1) so that the piston (3) can first be pulled when filling the container (10) to remove air from the container (10) through the Aspirate liquid through. Vorrichtung nach Anspruch 4, wobei der Zylinder (1) benachbart seinem der Hohlnadel (6) gegenüberliegenden Ende eine Luftzufuhröffnung (8) aufweist.Apparatus according to claim 4, wherein the cylinder (1) has an air supply opening (8) adjacent to its end opposite the hollow needle (6).
EP96810248A 1995-07-25 1996-04-19 Apparatus and method for filling a liquid in a container Expired - Lifetime EP0755795B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29512003U 1995-07-25
DE29512003U DE29512003U1 (en) 1995-07-25 1995-07-25 Device for filling liquid into a container

Publications (3)

Publication Number Publication Date
EP0755795A2 true EP0755795A2 (en) 1997-01-29
EP0755795A3 EP0755795A3 (en) 1997-07-30
EP0755795B1 EP0755795B1 (en) 2006-07-26

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Family Applications (1)

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EP96810248A Expired - Lifetime EP0755795B1 (en) 1995-07-25 1996-04-19 Apparatus and method for filling a liquid in a container

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US (1) US5883652A (en)
EP (1) EP0755795B1 (en)
AT (1) ATE333999T1 (en)
DE (2) DE29512003U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853001A2 (en) * 1997-01-08 1998-07-15 Brother Kogyo Kabushiki Kaisha Ink cartridge, process for forming it and liquid ink feeder
EP0872349A2 (en) * 1997-04-14 1998-10-21 Pelikan Produktions Ag Device for ink refill of a reservoir in a print cartridge
EP0878309A2 (en) * 1997-05-12 1998-11-18 Hana Company Limited Refill assembly for printer ink cartridges
CN111422808A (en) * 2020-03-19 2020-07-17 安徽恒达药业有限公司 Belladonna fluid extract production is with quick filling equipment

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5903292A (en) * 1991-06-19 1999-05-11 Hewlett-Packard Company Ink refill techniques for an inkjet print cartridge which leave correct back pressure
AUPP176598A0 (en) * 1998-02-10 1998-03-05 Calidad Distributors Pty Ltd Method and apparatus for refilling printer ink cartridges
US6056395A (en) * 1998-12-22 2000-05-02 Liu; Win-Yin Device to prevent from ink interruption in a printing head of an ink cartridge in a printer
US6172695B1 (en) * 1999-01-25 2001-01-09 Win-Yin Liu Ink replenishing device for link cartridge of a jet printer
US6213597B1 (en) * 2000-02-29 2001-04-10 Win-Yin Liu Apparatus for ink cartridge of a jet printer
US6920903B2 (en) * 2003-06-24 2005-07-26 Mark James Ansier Apparatus and method for refurbishing used cartridges for ink jet type imaging devices
US20050225592A1 (en) * 2004-04-07 2005-10-13 Stratitec Inc. Inkjet cartridge cleaning devices
JP5760399B2 (en) 2010-11-16 2015-08-12 セイコーエプソン株式会社 Liquid refill container
US20150109380A1 (en) * 2010-12-27 2015-04-23 North America Wales Group International Ltd. Vacuum piston device
JP2022168619A (en) * 2021-04-26 2022-11-08 船井電機株式会社 Ink cartridge, cartridge holding mechanism, and printer

Citations (5)

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Publication number Priority date Publication date Assignee Title
EP0567308A2 (en) * 1992-04-22 1993-10-27 Lexmark International, Inc. Device for ink refill of a reservoir in a print cartridge
WO1994011194A1 (en) * 1992-11-12 1994-05-26 Repeat-O-Type Stencil Mfg. Co., Inc. User refillable ink jet cartridge and method for making said cartridge
EP0611656A2 (en) * 1993-01-01 1994-08-24 Canon Kabushiki Kaisha Ink refilling container and ink refilling method using same
EP0645243A2 (en) * 1993-09-23 1995-03-29 OLIVETTI-CANON INDUSTRIALE S.p.A. Refillable ink jet printing module
WO1995018049A1 (en) * 1993-12-29 1995-07-06 Renewable Resources Company Thermoplastic closure for a fluid container and system for refilling a fluid reservoir

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JPS5656874A (en) * 1979-10-17 1981-05-19 Canon Inc Ink jet recording device
US4500895A (en) * 1983-05-02 1985-02-19 Hewlett-Packard Company Disposable ink jet head
US4967207A (en) * 1989-07-26 1990-10-30 Hewlett-Packard Company Ink jet printer with self-regulating refilling system
JPH06106729A (en) * 1992-09-28 1994-04-19 Sharp Corp Ink replenishing device
JPH06191055A (en) * 1992-12-25 1994-07-12 Canon Inc Ink re-filling device of ink jet recording apparatus
DE29502908U1 (en) * 1995-02-21 1995-03-30 Pelikan Produktions Ag, Egg Device for refilling ink in a printhead of an ink jet printer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567308A2 (en) * 1992-04-22 1993-10-27 Lexmark International, Inc. Device for ink refill of a reservoir in a print cartridge
WO1994011194A1 (en) * 1992-11-12 1994-05-26 Repeat-O-Type Stencil Mfg. Co., Inc. User refillable ink jet cartridge and method for making said cartridge
EP0611656A2 (en) * 1993-01-01 1994-08-24 Canon Kabushiki Kaisha Ink refilling container and ink refilling method using same
EP0645243A2 (en) * 1993-09-23 1995-03-29 OLIVETTI-CANON INDUSTRIALE S.p.A. Refillable ink jet printing module
WO1995018049A1 (en) * 1993-12-29 1995-07-06 Renewable Resources Company Thermoplastic closure for a fluid container and system for refilling a fluid reservoir

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0853001A2 (en) * 1997-01-08 1998-07-15 Brother Kogyo Kabushiki Kaisha Ink cartridge, process for forming it and liquid ink feeder
EP0853001A3 (en) * 1997-01-08 1999-04-21 Brother Kogyo Kabushiki Kaisha Ink cartridge, process for forming it and liquid ink feeder
US6109743A (en) * 1997-01-08 2000-08-29 Brother Kogyo Kabushiki Kaisha Ink cartridge, process for forming it and liquid ink feeder
EP0872349A2 (en) * 1997-04-14 1998-10-21 Pelikan Produktions Ag Device for ink refill of a reservoir in a print cartridge
EP0872349A3 (en) * 1997-04-14 1998-11-18 Pelikan Produktions Ag Device for ink refill of a reservoir in a print cartridge
EP0878309A2 (en) * 1997-05-12 1998-11-18 Hana Company Limited Refill assembly for printer ink cartridges
EP0878309A3 (en) * 1997-05-12 1999-04-28 Hana Company Limited Refill assembly for printer ink cartridges
US6120138A (en) * 1997-05-12 2000-09-19 Hana Company Limited Refill assembly for printer ink cartridges
CN111422808A (en) * 2020-03-19 2020-07-17 安徽恒达药业有限公司 Belladonna fluid extract production is with quick filling equipment

Also Published As

Publication number Publication date
DE29512003U1 (en) 1995-10-05
US5883652A (en) 1999-03-16
EP0755795A3 (en) 1997-07-30
ATE333999T1 (en) 2006-08-15
EP0755795B1 (en) 2006-07-26
DE59611368D1 (en) 2006-09-07

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