EP0969972B1 - Fluid regulator for supplying a consumer element with fluid from a fluid reservoir - Google Patents

Fluid regulator for supplying a consumer element with fluid from a fluid reservoir Download PDF

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Publication number
EP0969972B1
EP0969972B1 EP98906931A EP98906931A EP0969972B1 EP 0969972 B1 EP0969972 B1 EP 0969972B1 EP 98906931 A EP98906931 A EP 98906931A EP 98906931 A EP98906931 A EP 98906931A EP 0969972 B1 EP0969972 B1 EP 0969972B1
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EP
European Patent Office
Prior art keywords
fluid
valve
capillary
consumer
valve member
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EP98906931A
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German (de)
French (fr)
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EP0969972A1 (en
Inventor
Rainer Kaufmann
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Dataprint R Kaufmann KG GmbH and Co
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Dataprint R Kaufmann KG GmbH and Co
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/18—Arrangements for feeding the ink to the nibs
    • B43K5/1818—Mechanical feeding means, e.g. valves; Pumps
    • B43K5/1827—Valves
    • B43K5/1836—Valves automatically closing

Definitions

  • the invention relates to a liquid regulator for supplying a consumer with Liquid according to the preamble of claim 1.
  • the liquid consumers can for example, tips of writing, painting, and brushing tools or order and Spray elements from liquid dispensers.
  • the ink supply takes place Nibs through capillaries that use their capillary power to draw ink from a Vacuum the storage container, dimensioning an air equalization opening in the storage container is that the ink is replaced by air only when the pressure drops below a negative pressure becomes. The vacuum in the container is sufficient, the ink spills despite its weight to prevent.
  • These ink supply systems have the peculiarity that they change with temperature are not leak-proof because the air is in the storage container expands and thereby the negative pressure preventing leakage is reduced. Measures to prevent such ink leakage using additional capillary Buffer memory for the temporary absorption of an excessive volume of ink are complex and only effective to a limited extent.
  • EP 0 240 994 B1 is a device according to the preamble of the attached Known main claim, the valve between a liquid reservoir and an intermediate reservoir is arranged, from which the consumer via a capillary Line is supplied with liquid. If the intermediate reservoir is exhausted Liquid increasingly empties, there is a negative pressure, so that with his one side to the liquid reservoir and the other side to the intermediate reservoir limiting valve opens and the intermediate reservoir is filled with liquid again fills.
  • a peculiarity of this system is that it leads to a permanent interruption the fluid supply can come if the vacuum is otherwise compensates.
  • the invention has for its object to provide a generic device which, with a simple structure, provides a functionally reliable supply of liquid to a consumer guaranteed.
  • the capillary regulator according to the invention which is extremely simple in its construction can, works extraordinarily because of the high forces occurring in capillary systems reliable and ensures a high level of leak-proofing of the supplies it supplies Consumer.
  • Claims 4 to 7 are directed to advantageous features of the capillary valve, wherein with the features of claim 6, a particularly high reliability is achieved.
  • valve opening force can be that of the liquid supply column effective pressure can be used.
  • the leakproofness is further increased, since a Ventilation of the interior of the elastic bag is not necessary.
  • claims 10 and 11 are based on two advantageous examples of application device directed.
  • a fiber pen has a housing 2 which passes through in its interior Partitions 4, 6 and 8 is divided into different chambers.
  • the partition 4 is provided with an annular flange 10 on which a resilient sack 12 is slipped.
  • An opening leads through the partition 4 16 into a line 18, from which a valve opening 20 through the partition 6 leads through.
  • On the end of the valve opening 20 facing away from the line 18 is a valve member 22, the distance d between the valve member 22 and the Partition 6 has capillary dimensions explained below.
  • the line 18 can be filled with a flow-damping material so that Pressure waves from the liquid supply 14 have no effect on the valve functions to have.
  • a line 24 is formed in the partition 6, whose diameter is advantageously smaller than the distance d and over a connection opening 26 in the space between the partition 6 and the valve member 22 opens.
  • the line 24 leads to a capillary writing tip which is customary in its construction 28, as used for fiber pens.
  • the writing tip 28 is in one Flange of the partition 8 is used and is also in its front area the tapered housing 2 held there.
  • the writing tip 28 can also directly into the space between the valve member 22 and the Insert partition 6.
  • Air compensation openings 30, 32 and 34 provide ventilation of the interior of the housing 2nd
  • an elastic connection can be provided instead of one articulated connection.
  • the opening force exerted by the height of the liquid column is therefore only one Fraction of the closing force, which means that the valve is closed extremely securely and there is no risk of opening in the event of impact movements, provided the mass of the valve member 22 is small.
  • the valve member 22 closes the valve opening 20. since the capillary space 36 is sufficient Liquid is filled. When writing with the fiber pen and liquid is released from the writing tip 28, the capillary space 36 increasingly emptied. The Closing force of the valve member 22 thereby decreases, so that with a sufficiently empty capillary space the liquid pressure and / or a shaking movement opens the valve member 22, whereupon the capillary space is affected by the hydrostatic pressure or capillarity again fills with liquid and the valve member 22 again closes the opening 20. The process starts again. It is advantageous if the line 24th has a greater capillarity than the capillary space 36, since this ensures that the Line 24 "vacuums" the capillary space.
  • the device described can be modified in many ways.
  • the internal division of the housing can be different; the writing tip can be different; the arrangement of the ventilation openings can be modified; in the area of the bag 12, the housing can be opened so that the bag can be replaced in a simple manner is. Even if the entire device is completely blank, it fills up after insertion of a new sack automatically and completely with ink without risk of contamination consists.
  • valve member 22 is here designed as an elastic membrane 50, which is reinforced by means of a reinforcing plate 52 is reinforced.
  • the elastic membrane 50 In its upper area 54 is the elastic membrane 50 with the partition 6 rigidly connected, so that between the area rigidly connected, for example by gluing 54 and the area reinforced by means of the reinforcing plate 52 remains free, which forms a joint of the valve member 22.
  • the capillary space 36 is defined that the partition 6 is recessed to an appropriate depth, the valve member 22 facing end edge of the valve opening 20 by the thickness or depth of the Protrudes capillary space.
  • Fig. 4 shows the construction according to Fig. 1 and Fig. 2 schematically in its application in the case of a printing unit 56 of a printing device 58, such as is used, for example, in inkjet printers is used.
  • the liquid supply 14 borders here directly on the Partition 6 with the valve opening 20.
  • the writing tip 28 (FIG. 1) corresponds to a capillary wick 60, which supplies the printing unit 56 with liquid.
  • FIG. 5 shows an embodiment of the invention that has been modified compared to FIG. 1 Regulator:
  • the valve member 22 is here articulated to the partition 6 Plate 70 is formed, which has an opening in which a ball 72 is fixed.
  • the Ball 72 can also be formed in one piece with plate 70, for example by injection molding his.
  • the Closing security of the valve 20, 22 improved and its sensitivity to contamination decreased.
  • Another difference from the embodiment according to FIG. 1 is that the consumer, also formed here as a capillary writing tip 28, directly adjoins the capillary space 36, which simplifies the construction and increases the functional reliability, especially since the capillarity of the writing tip 28 is greater than that of the capillary space 22. Otherwise, the function is the same as that of the embodiment according to FIG. 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)

Description

Die Erfindung betrifft einen Flüssigkeitsregler zur Versorgung eines Verbrauchers mit Flüssigkeit gemäß dem Oberbegriff des Anspruchs 1. Die Flüssigkeitsverbraucher können beispielsweise Spitzen von Schreib-, Mal-, und Pinselgeräten sein oder auch Auftrags- und Sprühelemente von Flüssigkeitsspendern.The invention relates to a liquid regulator for supplying a consumer with Liquid according to the preamble of claim 1. The liquid consumers can for example, tips of writing, painting, and brushing tools or order and Spray elements from liquid dispensers.

Bei bekannten Schreibgeräten, wie z. B. Füllfederhaltern, erfolgt die Tintenversorgung der Schreibspitzen durch Kapillaren hindurch, die mittels ihrer Kapillarkraft Tinte aus einem Vorratsbehälter saugen, wobei eine Luftausgleichsöffnung im Vorratsbehälter so bemessen ist, das erst ab Unterschreitung eines Unterdrucks die entnommene Tinte durch Luft ersetzt wird. Der Unterdruck im Behälter reicht dabei aus, die Tinte trotz ihres Gewichts am Auslaufen zu hindern. Diese Tintenversorgungssysteme haben die Eigenart, daß sie bei Temperaturänderung der Umgebung nicht auslaufsicher sind, da sich die Luft im Vorratsbehälter ausdehnt und dadurch der das Auslaufen verhindernde Unterdruck vermindert wird. Maßnahmen zum Verhindern eines derartigen Tintenaustritts mittels zusätzlicher kapillarer Pufferspeicher zur zeitweiligen Aufnahme eines überschüssigen Tintenvolumens sind aufwendig und nur begrenzt wirksam.In known writing instruments, such as. B. fountain pens, the ink supply takes place Nibs through capillaries that use their capillary power to draw ink from a Vacuum the storage container, dimensioning an air equalization opening in the storage container is that the ink is replaced by air only when the pressure drops below a negative pressure becomes. The vacuum in the container is sufficient, the ink spills despite its weight to prevent. These ink supply systems have the peculiarity that they change with temperature are not leak-proof because the air is in the storage container expands and thereby the negative pressure preventing leakage is reduced. Measures to prevent such ink leakage using additional capillary Buffer memory for the temporary absorption of an excessive volume of ink are complex and only effective to a limited extent.

Aus der EP 0 240 994 B1 ist eine Vorrichtung entsprechend dem Oberbegriff des beigefügten Hauptanspruchs bekannt, deren Ventil zwischen einem Flüssigkeitsvorratsbehälter und einem Zwischenreservoir angeordnet ist, von dem aus der Verbraucher über eine kapillare Leitung mit Flüssigkeit versorgt wird. Wenn das Zwischenreservoir sich bei verbrauchter Flüssigkeit zunehmend leert, entsteht dort ein Unterdruck, sodaß das mit seiner einen Seite an den Flüssigkeitsvorratsbehälter und mit seiner anderen Seite an das Zwischenreservoir grenzende Ventil öffnet und sich das Zwischenreservoir erneut mit Flüssigkeit füllt. Eine Eigenart dieses Systems liegt darin, daß es zu einer dauerhaften Unterbrechung der Flüssigkeitsversorgung kommen kann, wenn sich der Unterdruck anderweitig ausgleicht.From EP 0 240 994 B1 is a device according to the preamble of the attached Known main claim, the valve between a liquid reservoir and an intermediate reservoir is arranged, from which the consumer via a capillary Line is supplied with liquid. If the intermediate reservoir is exhausted Liquid increasingly empties, there is a negative pressure, so that with his one side to the liquid reservoir and the other side to the intermediate reservoir limiting valve opens and the intermediate reservoir is filled with liquid again fills. A peculiarity of this system is that it leads to a permanent interruption the fluid supply can come if the vacuum is otherwise compensates.

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Vorrichtung zu schaffen, die bei einfachem Aufbau ein funktionssichere Versorgung eines Verbrauchers mit Flüssigkeit gewährleistet.The invention has for its object to provide a generic device which, with a simple structure, provides a functionally reliable supply of liquid to a consumer guaranteed.

Diese Aufgabe wird mit den Merkmalen des Hauptanspruchs gelöst.This object is achieved with the features of the main claim.

Der erfindungsgemäße kapillare Regler, der in seinem Aufbau außerordentlich einfach sein kann, arbeitet wegen der hohen, in kapillaren Systemen auftretenden Kräfte außerordentlich funktionssicher und gewährleistet eine hohe Auslaufsicherheit der von ihm versorgten Verbraucher.The capillary regulator according to the invention, which is extremely simple in its construction can, works extraordinarily because of the high forces occurring in capillary systems reliable and ensures a high level of leak-proofing of the supplies it supplies Consumer.

Mit den Merkmalen der Ansprüche 2 und 3 ist gewährleistet, daß sich die Flüssigkeitsversorgungsleitung bzw. der Verbraucher stromab des Kapillarraums zuverlässig ständig mit Flüssigkeit vollsaugt.With the features of claims 2 and 3 it is ensured that the liquid supply line or the consumer downstream with constant reliability Liquid soaked up.

Die Ansprüche 4 bis 7 sind auf vorteilhafte Merkmale des Kapillarventils gerichtet, wobei mit den Merkmalen des Anspruchs 6 eine besonders hohe Zuverlässigkeit erreicht wird.Claims 4 to 7 are directed to advantageous features of the capillary valve, wherein with the features of claim 6, a particularly high reliability is achieved.

Gemäß dem Anspruch 8 kann als Ventilöffnungskraft unmittelbar der von der Flüssigkeitsvorratssäule her wirkende Druck verwendet werden.According to claim 8, the valve opening force can be that of the liquid supply column effective pressure can be used.

Mit den Merkmalen des Anspruchs 9 wird die Auslaufsicherheit weiter erhöht, da eine Belüftung des Innenraums des elastischen Sacks nicht notwendig ist.With the features of claim 9, the leakproofness is further increased, since a Ventilation of the interior of the elastic bag is not necessary.

Die Ansprüche 10 und 11 schließlich sind auf zwei vorteilhafte Anwendungsbeispiele der erfindungsgemäßen Vorrichtung gerichtet. Finally, claims 10 and 11 are based on two advantageous examples of application device directed.

Die Erfindung wird in folgenden anhand schematischer Zeichnungen beispielsweise und mit weiteren Einzelheiten erläutert.The invention is illustrated in the following with the aid of schematic drawings for example and explained with further details.

Es stellen dar:

Fig. 1
einen Querschnitt durch einen mit dem erfindungsgemäßen Flüssigkeitsregler ausgerüsteten Faserschreiber,
Fig. 2
eine vergrößerte Ansicht des in Fig. 1 enthaltenen Kapillarreglers,
Fig. 3
eine Aufsicht auf das Ventilglied des Kapillarreglers gemäß Fig. 2 und
Fig. 4
eine schematische Schnittansicht einer mit der erfindungsgemäßen Vorrichtung versehenen Druckvorrichtung.
Fig. 5
eine Detailansicht einer gegenüber Fig. 1 abgeänderten Ausführungsform.
They represent:
Fig. 1
3 shows a cross section through a fiber pen equipped with the liquid regulator according to the invention,
Fig. 2
2 shows an enlarged view of the capillary regulator contained in FIG. 1,
Fig. 3
a plan view of the valve member of the capillary controller according to FIG. 2 and
Fig. 4
is a schematic sectional view of a printing device provided with the device according to the invention.
Fig. 5
a detailed view of a modified from FIG. 1 embodiment.

Gemäß Fig. 1 weist ein Faserschreiber ein Gehäuse 2 auf, das in seinem Inneren durch Trennwände 4, 6 und 8 in unterschiedliche Kammern unterteilt ist. Die Trennwand 4 ist mit einem Ringflansch 10 versehen, auf den ein nachgiebiger Sack 12 ausgestülpt ist. der einen Flüssigkeitsvorrat 14 enthält, wobei die Flüssigkeit jedwelche bekannte Schreibflüssigkeit, beispielsweise Tinte, sein kann. Durch die Trennwand 4 hindurch führt eine Öffnung 16 in eine Leitung 18, von der aus eine Ventilöffnung 20 durch die Trennwand 6 hindurch führt. An der von der Leitung 18 abgewandten Stirnseite der Ventilöffnung 20 liegt ein Ventilglied 22 an, wobei der Abstand d zwischen dem Ventilglied 22 und der Trennwand 6 weiter unten erläuterte kapillare Dimensionen hat. 1, a fiber pen has a housing 2 which passes through in its interior Partitions 4, 6 and 8 is divided into different chambers. The partition 4 is provided with an annular flange 10 on which a resilient sack 12 is slipped. the contains a liquid supply 14, the liquid being any known writing liquid, ink, for example. An opening leads through the partition 4 16 into a line 18, from which a valve opening 20 through the partition 6 leads through. On the end of the valve opening 20 facing away from the line 18 is a valve member 22, the distance d between the valve member 22 and the Partition 6 has capillary dimensions explained below.

Die Leitung 18 kann mit einem den Durchfluß dämpfenden Material gefüllt sein, so daß Druckwellen aus dem Flüssigkeitsvorrat 14 keine Auswirkung auf die Ventilfunktionen haben.The line 18 can be filled with a flow-damping material so that Pressure waves from the liquid supply 14 have no effect on the valve functions to have.

Gemäß Fig. 1 unterhalb der Ventilöffnung 20 ist in der Trennwand 6 eine Leitung 24 ausgebildet, deren Durchmesser vorteilhafterweise kleiner ist als der Abstand d und die über eine Verbindungsöffnung 26 in den Raum zwischen der Trennwand 6 und dem Ventilglied 22 mündet. Die Leitung 24 führt zu einer in ihrem Aufbau üblichen kapillaren Schreibspitze 28, wie sie für Faserschreiber verwendet wird. Die Schreibspitze 28 ist in einen Flansch der Trennwand 8 eingesetzt und wird in ihrem vorderen Bereich zusätzlich von dem dort konisch auslaufenden Gehäuse 2 gehalten.1 below the valve opening 20, a line 24 is formed in the partition 6, whose diameter is advantageously smaller than the distance d and over a connection opening 26 in the space between the partition 6 and the valve member 22 opens. The line 24 leads to a capillary writing tip which is customary in its construction 28, as used for fiber pens. The writing tip 28 is in one Flange of the partition 8 is used and is also in its front area the tapered housing 2 held there.

Die Schreibspitze 28 kann auch direkt in den Raum zwischen dem Ventilglied 22 und der Trennwand 6 einragen.The writing tip 28 can also directly into the space between the valve member 22 and the Insert partition 6.

Luftausgleichsöffnungen 30, 32 und 34 sorgen für eine Belüftung des Inneren des Gehäuses 2.Air compensation openings 30, 32 and 34 provide ventilation of the interior of the housing 2nd

Das insgesamt plattenförmig ausgebildete Ventilglied 22, das zwischen sich und der Trennwand 6 einen platten- bzw. scheibenförmigen Kapillarraum 36 mit der Dicke d begrenzt, ist bei 38 mit der Trennwand 4 gelenkig verbunden und ragt in eine Ausnehmung 40 der Trennwand 8 ein, die eine Öffnungsbegrenzung für das Ventilglied 22 bildet. Statt einer gelenkigen Verbindung kann eine elastische Verbindung vorgesehen sein.The overall plate-shaped valve member 22 that between itself and the partition 6 delimits a plate-shaped or disk-shaped capillary space 36 with the thickness d, is hinged at 38 to the partition 4 and protrudes into a recess 40 Partition 8, which forms an opening limitation for the valve member 22. Instead of one articulated connection, an elastic connection can be provided.

Vor der Erläuterung der Funktion der beschriebenen Vorrichtung seien kurz einige physikalische Grundlagen angemerkt:
Bei die Ventilöffnung 20 verschließendem Ventilglied 22 wirkt durch die Ventilöffnung 20 von der linksseitig der Ventilöffnung 20 vorhandenen Flüssigkeitssäule folgende Kraft auf das Ventilglied 22: K = π x r2 x h x a wobei

  • r: Radius der Ventilöffnung
  • h: Höhe der Flüssigkeitssäule und
  • a: spezifisches Gewicht der Flüssigkeit
    • Before explaining the function of the device described, a few physical basics are briefly noted:
    In the case of valve member 22 closing valve opening 20, the following force acts on valve member 22 through valve opening 20 from the liquid column present on the left-hand side of valve opening 20: K = π xr 2nd xhxa in which
  • r: radius of the valve opening
  • h: height of the liquid column and
  • a: specific gravity of the liquid

    • Wenn das Ventilglied 22 auf seiner dem Kapillarraum 36 zugewandten Seite und die Trennwand 6 auf ihrer dem Kapillarraum 36 zugewandten Seite aus einem Material bestehen, das von der Flüssigkeit benetzt wird, wird die Flüssigkeit infolge der Kapillaratraktion in den Kapillarraum 36 eingesaugt und ggf. zusätzlich durch den hydrostatischen Druck der Flüssigkeitssäure in den Kapillarraum 36 hineingedrückt. Dies führt dazu, daß das Ventilglied 22 durch die Flüssigkeit im Kapillarraum mit der folgenden Kraft in Schließrichtung, d.h. in Anlage an den Rand der Ventilöffnung 20 gezogen wird: Ks = 2 x o x f/d wobei

  • o: Oberflächenspannung der Flüssigkeit,
  • d: Dicke des Kapillarraums 36 und
  • f: von Flüssigkeit benetzte Fläche des Ventilglieds 22.
    • If the valve member 22 on its side facing the capillary space 36 and the partition 6 on its side facing the capillary space 36 consist of a material which is wetted by the liquid, the liquid is sucked into the capillary space 36 as a result of the capillary reaction and, if necessary, additionally the hydrostatic pressure of the liquid acid is pressed into the capillary space 36. As a result, the valve member 22 is pulled by the liquid in the capillary space with the following force in the closing direction, ie in contact with the edge of the valve opening 20: K s = 2 xoxf / d in which
  • o: surface tension of the liquid,
  • d: thickness of the capillary space 36 and
  • f: surface of the valve member 22 wetted by liquid.

    • Übliche Dimensionierungen liegen in folgenden Bereichen:

  • d: 0,01 bis 1 mm
  • f: 1 mm2 bis mehrere cm2
  • h: 1 cm bis 1 m
  • r: 0,01 bis 5 mm
  • o: 10 bis 70 x 10-2 N/m
    • The usual dimensions are in the following areas:
  • d: 0.01 to 1 mm
  • f: 1 mm 2 to several cm 2
  • h: 1 cm to 1 m
  • r: 0.01 to 5 mm
  • o: 10 to 70 x 10 -2 N / m

    • Mit d: 0,1 mm, o = 50 x 10-2 N/m, f = 1 cm2, ergibt sich: KS = 0,1 N.
    Mit r = 0,2 mm, h = 5 cm, a = 104 N/m3 ergibt sich: K = 6 x 10-5 N.    With d: 0.1 mm, o = 50 x 10 -2 N / m, f = 1 cm 2 , we get: K S = 0.1 N.
    With r = 0.2 mm, h = 5 cm, a = 10 4 N / m 3, the result is: K = 6 x 10 -5 N.

    Somit beträgt die von der Höhe der Flüssigkeitssäule ausgeübte Öffnungskraft nur einen Bruchteil der Schließkraft, wodurch das Ventil außerordentlich sicher geschlossen ist und bei Stoßbewegungen keine Öffnungsgefahr besteht, sofern die Masse des Ventilgliedes 22 klein ist.The opening force exerted by the height of the liquid column is therefore only one Fraction of the closing force, which means that the valve is closed extremely securely and there is no risk of opening in the event of impact movements, provided the mass of the valve member 22 is small.

    Die Funktion des beschriebenen Faserschreibers ist folgende:The function of the fiber pen described is as follows:

    Sei angenommen, das sich der Faserschreiber in dem Zustand gemäß Fig. 1 befindet, d.h. das Ventilglied 22 die Ventilöffnung 20 schließt. da der Kapillarraum 36 ausreichend mit Flüssigkeit gefüllt ist. Wenn mit dem Faserschreiber nun geschrieben wird und Flüssigkeit von der Schreibspitze 28 abgegeben wird, leert sich der Kapillarraum 36 zunehmend. Die Schließkraft des Ventilglieds 22 nimmt dadurch ab, so daß bei ausreichend geleertem Kapillarraum der Flüssigkeitsdruck und/oder eine Schüttelbewegung das Ventilglied 22 öffnet, woraufhin sich der Kapillarraum durch den hydrostatischen Druck bzw. auch die Kapillarität wiederum mit Flüssigkeit füllt und das Ventilglied 22 die Öffnung 20 wiederum verschließt. Der Vorgang beginnt von neuem. Dabei ist von Vorteil, wenn die Leitung 24 eine größere Kapillarität als der Kapillarraum 36 hat, da dadurch sichergestellt ist, daß die Leitung 24 den Kapillarraum "leersaugt". Assume that the fiber pen is in the state shown in Fig. 1, i.e. the valve member 22 closes the valve opening 20. since the capillary space 36 is sufficient Liquid is filled. When writing with the fiber pen and liquid is released from the writing tip 28, the capillary space 36 increasingly emptied. The Closing force of the valve member 22 thereby decreases, so that with a sufficiently empty capillary space the liquid pressure and / or a shaking movement opens the valve member 22, whereupon the capillary space is affected by the hydrostatic pressure or capillarity again fills with liquid and the valve member 22 again closes the opening 20. The process starts again. It is advantageous if the line 24th has a greater capillarity than the capillary space 36, since this ensures that the Line 24 "vacuums" the capillary space.

    Es versteht sich, daß die beschriebene Vorrichtung vielfältig abgewandelt werden kann. Die innere Aufteilung des Gehäuses kann unterschiedlich sein; die Schreibspitze kann anders sein; die Anordnung der Belüftungsöffnungen kann abgewandelt sein; im Bereich des Sacks 12 kann das Gehäuse öffenbar sein, sodaß der Sack in einfacher Weise auswechselbar ist. Auch wenn das gesamte Gerät völlig leergeschrieben ist, füllt es sich nach Einsetzen eines neuen Sacks selbsttätig zuverlässig vollständig mit Tinte, ohne daß eine Verschmutzungsgefahr besteht.It is understood that the device described can be modified in many ways. The internal division of the housing can be different; the writing tip can be different; the arrangement of the ventilation openings can be modified; in the area of the bag 12, the housing can be opened so that the bag can be replaced in a simple manner is. Even if the entire device is completely blank, it fills up after insertion of a new sack automatically and completely with ink without risk of contamination consists.

    Fig. 2 und 3 zeigen eine abgeänderte Konstruktion eines Ventils. Das Ventilglied 22 ist hier als eine elastische Membran 50 ausgebildet, die mittels einer Verstärkungsplatte 52 verstärkt ist. In ihrem oberen Bereich 54 ist die elastische Membran 50 mit der Trennwand 6 starr verbunden, sodaß zwischen dem beispielsweise durch Kleben starr verbundenen Bereich 54 und dem mittels der Verstärkungsplatte 52 verstärktem Bereich ein Bereich freibleibt, der ein Gelenk des Ventilgliedes 22 bildet. Der Kapillarraum 36 ist dadurch definiert, daß die Trennwand 6 in entsprechender Tiefe ausgenommen ist, wobei der dem Ventilglied 22 zugewandte Stirnrand der Ventilöffnung 20 um die Dicke bzw. Tiefe des Kapillarraums vorsteht. Mit dieser Konstruktion des Ventilglieds 22 wird bei einfachem Aufbau eine besonders hohe Funktionssicherheit erreicht.2 and 3 show a modified construction of a valve. The valve member 22 is here designed as an elastic membrane 50, which is reinforced by means of a reinforcing plate 52 is reinforced. In its upper area 54 is the elastic membrane 50 with the partition 6 rigidly connected, so that between the area rigidly connected, for example by gluing 54 and the area reinforced by means of the reinforcing plate 52 remains free, which forms a joint of the valve member 22. The capillary space 36 is defined that the partition 6 is recessed to an appropriate depth, the valve member 22 facing end edge of the valve opening 20 by the thickness or depth of the Protrudes capillary space. With this construction of the valve member 22 is simple Construction achieved a particularly high level of functional reliability.

    Fig. 4 zeigt die Konstruktion gemäß Fig. 1 und Fig. 2 schematisch in ihrer Anwendung bei einem Druckaggregat 56 einer Druckvorrichtung 58, wie sie beispielsweise in Tintenstrahldruckern verwendet wird. Der Flüssigkeitsvorrat 14 grenzt hier unmittelbar an die Trennwand 6 mit der Ventilöffnung 20. Der Schreibspitze 28 (Fig. 1) entspricht ein kapillarer Docht 60, der das Druckaggregat 56 mit Flüssigkeit versorgt.Fig. 4 shows the construction according to Fig. 1 and Fig. 2 schematically in its application in the case of a printing unit 56 of a printing device 58, such as is used, for example, in inkjet printers is used. The liquid supply 14 borders here directly on the Partition 6 with the valve opening 20. The writing tip 28 (FIG. 1) corresponds to a capillary wick 60, which supplies the printing unit 56 with liquid.

    Fig. 5 zeigt eine gegenüber Fig. 1 abgeänderte Ausführungsform des erfindungsgemäßen Reglers: Das Ventilglied 22 ist hier als eine gelenkig an der Trennwand 6 angebrachte Platte 70 ausgebildet, die eine Öffnung aufweist, in der eine Kugel 72 befestigt ist. Die Kugel 72 kann auch einteilig mit der Platte 70, beispielsweise durch Spritzgießen, ausgebildet sein. Mittels der Kugel 72, die aus möglichst leichtem Material sein soll, wird die Schließsicherheit des Ventils 20, 22 verbessert und seine Verschmutzungsempfindlichkeit verringert. Ein weiterer Unterschied zur Ausführungsform gemäß Fig. 1 liegt darin, daß der hier ebenfalls als kapillare Schreibspitze 28 ausgebildete Verbraucher unmittelbar an den Kapillarraum 36 angrenzt, was den Aufbau vereinfacht und die Funktionssicherheit erhöht, insbesondere da die Kapillarität der Schreibspitze 28 größer ist als die des Kapillarraums 22. Ansonsten ist die Funktion ebenso wie die der Ausführungsform gemäß Fig. 1.FIG. 5 shows an embodiment of the invention that has been modified compared to FIG. 1 Regulator: The valve member 22 is here articulated to the partition 6 Plate 70 is formed, which has an opening in which a ball 72 is fixed. The Ball 72 can also be formed in one piece with plate 70, for example by injection molding his. By means of the ball 72, which should be made of the lightest possible material, the Closing security of the valve 20, 22 improved and its sensitivity to contamination decreased. Another difference from the embodiment according to FIG. 1 is that the consumer, also formed here as a capillary writing tip 28, directly adjoins the capillary space 36, which simplifies the construction and increases the functional reliability, especially since the capillarity of the writing tip 28 is greater than that of the capillary space 22. Otherwise, the function is the same as that of the embodiment according to FIG. 1.

    Claims (11)

    1. Fluid regulator to supply a consumer with fluid from a fluid reservoir, containing a valve (20, 22) which opens a connection between the fluid reservoir (14) and the consumer (28; 60, 56) whenever the consumer has consumed a particular quantity of fluid, characterized in that the valve (20) contains a capillary space (36), the capillarity of which urges a valve member (22) into a position closing the valve orifice, when the capillary space is filled completely or partially with fluid from the fluid reservoir (14).
    2. Fluid regulator according to Claim 1, characterized in that the capillary space (36) is connected to the consumer (28; 60, 56) by means of a line (24), the capillarity of which is greater than that of the capillary space.
    3. Fluid regulator according to Claim 1 or 2, characterized in that the consumer (28; 60, 56) is capillary and its capillarity is greater than that of the capillary space.
    4. Device according to one of Claims 1 to 3, characterized in that the capillary space (36) is generally disc-shaped, the valve orifice (20) being produced in one of its end faces and the other end face being formed by the valve member (22).
    5. Device according to one of Claims 1 to 4, characterized in that the valve member (22) has an elastic diaphragm (50).
    6. Device according to Claim 5, characterized in that the elastic diaphragm (50) is reinforced by means of a reinforcing plate (52).
    7. Device according to one of Claims 1 to 4, characterized in that the valve member (22) has a ball (72) for closing the valve orifice (20).
    8. Device according to one of Claims 1 to 7, characterized in that the capillary valve closes counter to the pressure of a fluid column acting from the fluid reservoir (14) on the valve orifice (20).
    9. Device according to one of Claims 1 to 8, characterized in that the fluid reservoir (14) is contained in a bag (12).
    10. Device according to one of Claims 1 to 9, characterized in that the consumer is the capillary writing tip (28) of a drawing implement.
    11. Device according to one of Claims 1 to 9, characterized in that the consumer is the printing assembly (56) of a printing apparatus (58).
    EP98906931A 1997-02-21 1998-02-06 Fluid regulator for supplying a consumer element with fluid from a fluid reservoir Expired - Lifetime EP0969972B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19706967A DE19706967C1 (en) 1997-02-21 1997-02-21 Liquid regulator for supplying a consumer with liquid from a liquid supply
    DE19706967 1997-02-21
    PCT/EP1998/000663 WO1998036918A1 (en) 1997-02-21 1998-02-06 Fluid regulator for supplying a consumer element with fluid from a fluid reservoir

    Publications (2)

    Publication Number Publication Date
    EP0969972A1 EP0969972A1 (en) 2000-01-12
    EP0969972B1 true EP0969972B1 (en) 2000-11-15

    Family

    ID=7821089

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98906931A Expired - Lifetime EP0969972B1 (en) 1997-02-21 1998-02-06 Fluid regulator for supplying a consumer element with fluid from a fluid reservoir

    Country Status (4)

    Country Link
    US (1) US6164858A (en)
    EP (1) EP0969972B1 (en)
    DE (1) DE19706967C1 (en)
    WO (1) WO1998036918A1 (en)

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    DE19529865C2 (en) 1995-08-14 2002-02-28 Kaufmann R Dataprint Device for applying liquids to a base by means of an application element
    FR2820080B1 (en) * 2001-01-26 2003-04-18 Conte WRITING MEMORY WITH LIQUID INK AND SHAPE MEMORY VALVE
    US6457892B1 (en) 2001-04-20 2002-10-01 Avery Dennison Corporation Writing instrument having a capillary hole through the container
    US6637965B1 (en) 2001-06-22 2003-10-28 Avery Dennison Corporation Writing instrument having a reservoir between a tip and a capillary storage
    FR2832297B1 (en) * 2001-11-19 2004-08-06 Oreal PACKAGING AND APPLICATION SET OF A PRODUCT
    US7515336B2 (en) 2001-12-21 2009-04-07 Bose Corporation Selective reflecting
    US7144174B2 (en) * 2004-12-30 2006-12-05 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Applicator for liquid cosmetic compositions
    CN100437001C (en) * 2005-05-13 2008-11-26 鸿富锦精密工业（深圳）有限公司 Vacuum liquid filling device and vacuum liquid filling method
    AR056792A1 (en) * 2005-11-12 2007-10-24 Unilever Nv HAIR DISPENSER
    US8517728B2 (en) 2007-01-24 2013-08-27 Colgate-Palmolive Company Oral care implement having fluid delivery system
    DE202007010993U1 (en) 2007-06-29 2007-11-08 Edding Ag Device for writing, marking and / or painting
    KR101530504B1 (en) 2010-02-26 2015-06-19 콜게이트-파아므올리브캄파니 Fluid delivery system for an oral care implement
    US8398326B2 (en) 2010-03-04 2013-03-19 Colgate-Palmolive Company Fluid dispensing oral care implement
    JP2013532685A (en) 2010-07-30 2013-08-19 コルゲート・パーモリブ・カンパニー Mouthwash formula for use with toothbrush delivery devices
    WO2012121720A1 (en) 2011-03-09 2012-09-13 Colgate-Palmolive Company Interdental cleaning device
    CA2831430C (en) 2011-03-28 2015-11-24 Colgate-Palmolive Company Toothbrush having oral care fluid delivery
    WO2014066021A2 (en) 2012-10-26 2014-05-01 Colgate-Palmolive Company Oral care implement
    CN110099585B (en) 2016-12-20 2024-06-18 高露洁-棕榄公司 Personal care appliance with fluid delivery system
    CN109677163B (en) * 2019-01-30 2020-10-27 广州市新旗专利技术推广服务有限公司 Straight liquid type fiber head pen
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    Also Published As

    Publication number Publication date
    DE19706967C1 (en) 1998-09-03
    EP0969972A1 (en) 2000-01-12
    US6164858A (en) 2000-12-26
    WO1998036918A1 (en) 1998-08-27

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