EP0241706B1 - Writing instrument - Google Patents

Writing instrument Download PDF

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Publication number
EP0241706B1
EP0241706B1 EP87103491A EP87103491A EP0241706B1 EP 0241706 B1 EP0241706 B1 EP 0241706B1 EP 87103491 A EP87103491 A EP 87103491A EP 87103491 A EP87103491 A EP 87103491A EP 0241706 B1 EP0241706 B1 EP 0241706B1
Authority
EP
European Patent Office
Prior art keywords
writing
conductor
fluid
fluid reservoir
writing fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87103491A
Other languages
German (de)
French (fr)
Other versions
EP0241706A1 (en
Inventor
Antoaneta Tschawow
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.)
Rotring International & Co Kg Te Hamburg Bo GmbH
Original Assignee
Rotring Werke Riepe KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rotring Werke Riepe KG filed Critical Rotring Werke Riepe KG
Priority to AT87103491T priority Critical patent/ATE53794T1/en
Publication of EP0241706A1 publication Critical patent/EP0241706A1/en
Application granted granted Critical
Publication of EP0241706B1 publication Critical patent/EP0241706B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
    • B43K8/022—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material with writing-points comprising fibres

Definitions

  • the invention relates to a writing instrument with a writing fluid reservoir in the form of a fiber body, which has capillary channels in the direction of the longitudinal fiber extensions, and with a housing accommodating the writing fluid reservoir, in the front end of which a writing tip is held, a writing fluid conductor extending coaxially in the writing fluid reservoir , which is in liquid-conducting connection with the writing tip.
  • the writing fluid store consists of an essentially cylindrical fiber body, in which the fibers extend in the direction of the longitudinal axis of the cylinder and thus parallel to the writing fluid conductor arranged coaxially in the fiber body.
  • the fibers transport the writing liquid received by the writing liquid storage when consumed as a result of writing or drawing on the one hand in the direction of the axially extending capillary channels and on the other hand in the radial direction to the writing liquid conductor.
  • a writing instrument of the type mentioned at the outset is designed in accordance with the invention in such a way that the writing fluid store consists of fibers which extend perpendicular to and radially with respect to the longitudinal axis of the writing fluid conductor.
  • the fibers of the writing fluid reservoir are arranged in such a way that they extend from the outside inwards in the direction of the coaxially arranged writing fluid conductor and are in fluid-conducting connection therewith, so that the fibers Capillary channels formed run in the radial direction.
  • Writing fluid in operation i.e. if the writing liquid conductor releases writing liquid to the writing tip during writing or drawing, it is transported from the writing liquid store in the direction of the writing liquid conductor.
  • the writing fluid conductor inserted into the writing fluid reservoir is preferably a flank-open, capillary-channel wick which receives writing fluid from the radially inner ends of the fibers of the writing fluid reservoir via its peripheral surface.
  • a particularly simple construction results if the front end of the writing liquid conductor forms the writing tip, since then only one component is required for the writing liquid conductor and writing tip.
  • the writing instrument shown has an essentially cylindrical, elongated housing 1, in the front end of which there is a passage opening into which a support tube 3 is inserted. Furthermore, there is a ventilation hole 2 in the front end face of the housing 1, via which a pressure equalization between the interior of the housing 1 and the surroundings is effected.
  • a cylindrical writing fluid reservoir 4 is inserted into the housing 1 and extends essentially through the entire length of the housing.
  • the writing fluid reservoir is constructed from individual fibers which form capillary channels in the direction of their longitudinal extent, the longitudinal extent of the fibers extending radially. This means that the fibers run radially outwards from a writing liquid conductor 5 inserted coaxially into the writing liquid memory.
  • the fibers are in liquid-conducting connection, usually in direct contact, with the writing liquid conductor 5, and the writing liquid conductor 5 is a flank-open wick known for this purpose, which has capillary channels. It extends forward from the writing fluid reservoir 4 through the passage opening in the housing 1 and the support tube 3, so that its front end forms the writing tip of the writing instrument.
  • the writing liquid conductor 5 is fed from the writing liquid storage 4 soaked with writing liquid, such as ink, via the radially extending capillary channels of the writing liquid storage, which reaches the writing tip 5 to the front and is applied to the writing pad from there.
  • writing liquid such as ink

Landscapes

  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Holo Graphy (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

A writing instrument includes a writing fluid reservoir in the form of a fiber body, in which there is a coaxially extending writing fluid conductor with capillary conduits. The fibers of the reservoir extend at right angles to and radially with respect to the longitudinal axis of the conductor and communicate with it in a fluid-conducting manner.

Description

Die Erfindung bezieht sich auf ein Schreibgerät mit einem Schreibflüssigkeitsspeicher in Form eines Faserkörpers, der in Richtung der Faserlängserstreckungen Kapillar-Kanäle aufweist, und mit einem den Schreibflüssigkeitsspeicher aufnehmenden Gehäuse, in dessen vorderem Ende eine Schreibspitze gehaltert ist, wobei sich im Schreibflüssigkeitsspeicher koaxial ein Schreibflüssigkeitsleiter erstreckt, der in flüssigkeitsleitender Verbindung mit der Schreibspitze steht.The invention relates to a writing instrument with a writing fluid reservoir in the form of a fiber body, which has capillary channels in the direction of the longitudinal fiber extensions, and with a housing accommodating the writing fluid reservoir, in the front end of which a writing tip is held, a writing fluid conductor extending coaxially in the writing fluid reservoir , which is in liquid-conducting connection with the writing tip.

Bei einem bekannten Schreibgerät dieser Art (GB-OS 2 150 506) besteht der Schreibflüssigkeitsspeicher aus einem im wesentlichen zylindrischen Faserkörper, in dem sich die Fasern in Richtung der Längsachse des Zylinders und damit parallel zum koaxial im Faserkörper angeordneten Schreibflüssigkeitsleiter erstrecken. Bei diesem bekannten Schreibgerät transportieren die Fasern die vom Schreibflüssigkeitsspeicher aufgenommene Schreibflüssigkeit beim Verbrauch infolge Schreibens oder Zeichnens einerseits in Richtung der axial verlaufenden Kapillar-Kanäle und andererseits in radialer Richtung zum Schreibflüssigkeitsleiter. Da jedoch die Kräfte in den axial verlaufenden Kapillar-Kanälen größer sind als die in radialer Richtung auf die Schreibflüssigkeit wirkenden Kräfte, gelangt ein Teil der im Schreibflüssigkeitsspeicher enthaltenen Schreibflüssigkeit überhaupt nicht zum koaxial verlaufenden Schreibflüssigkeitsleiter, sondern wird in den radial äußeren Bereichen des Schreibflüssigkeitsspeichers zurückgehalten, so daß sich der Schreibflüssigkeitsspeicher nicht leerschreiben läßt.In a known writing instrument of this type (GB-OS 2 150 506), the writing fluid store consists of an essentially cylindrical fiber body, in which the fibers extend in the direction of the longitudinal axis of the cylinder and thus parallel to the writing fluid conductor arranged coaxially in the fiber body. In this known writing instrument, the fibers transport the writing liquid received by the writing liquid storage when consumed as a result of writing or drawing on the one hand in the direction of the axially extending capillary channels and on the other hand in the radial direction to the writing liquid conductor. However, since the forces in the axially extending capillary channels are greater than the forces acting on the writing fluid in the radial direction, some of the writing fluid contained in the writing fluid reservoir does not reach the coaxially extending writing fluid conductor at all, but is retained in the radially outer regions of the writing fluid reservoir, so that the writing fluid memory cannot be written to empty.

Es ist Aufgabe der Erfindung, ein Schreibgerät dahingehend zu verbessern, daß sich die im Schreibflüssigkeitsspeicher enthaltene Schreibflüssigkeit praktisch vollständig zum Schreiben oder Zeichnen ausnutzen läßt.It is an object of the invention to improve a writing instrument in such a way that the writing fluid contained in the writing fluid reservoir can be used virtually completely for writing or drawing.

Zur Lösung dieser Aufgabe wird ein Schreibgerät der eingangs erwähnten Art erfindungsgemäß derart ausgestaltet, daß der Schreibflüssigkeitsspeicher aus sich senkrecht zur und radial bezüglich der Längsachse des Schreibflüssigkeitsleiters erstreckenden Fasern besteht.To achieve this object, a writing instrument of the type mentioned at the outset is designed in accordance with the invention in such a way that the writing fluid store consists of fibers which extend perpendicular to and radially with respect to the longitudinal axis of the writing fluid conductor.

Bei dem erfindungsgemäßen Schreibgerät sind also, völlig abweichend von den bekannten Schreibgeräten, die Fasern des Schreibflüssigkeitsspeichers so angeordnet, daß sie sich von außen nach innen in Richtung auf den koaxial angeordneten Schreibflüssigkeitsleiter erstrecken und mit diesem in flüssigkeitsleitender Verbindung stehen, so daß die von den Fasern gebildeten Kapillar-Kanäle in radialer Richtung verlaufen. Auf diese Weise wird die . Schreibflüssigkeit im Betrieb, d.h. wenn der Schreibflüssigkeitsleiter beim Schreiben oder Zeichnen Schreibflüssigkeit an die Schreibspitze abgibt, aus dem Schreibflüssigkeitsspeicher in Richtung auf den Schreibflüssigkeitsleiter transportiert. Dabei ergibt sich ein praktisch vollständiges Entleeren des Schreibflüssigkeitsspeichers, weil die wirksamen Kapillarkräfte die Schreibflüssigkeit nicht, wie bei dem bekannten Schreibgerät, im äußeren Umfangsbereich des Schreibflüssigkeitsspeichers zurückhalten, sondern sie zum Schreibflüssigkeitsleiter transportieren.In the writing instrument according to the invention, so completely different from the known writing instruments, the fibers of the writing fluid reservoir are arranged in such a way that they extend from the outside inwards in the direction of the coaxially arranged writing fluid conductor and are in fluid-conducting connection therewith, so that the fibers Capillary channels formed run in the radial direction. In this way the. Writing fluid in operation, i.e. if the writing liquid conductor releases writing liquid to the writing tip during writing or drawing, it is transported from the writing liquid store in the direction of the writing liquid conductor. This results in a practically complete emptying of the writing fluid reservoir because the effective capillary forces do not hold the writing fluid, as in the known writing instrument, in the outer circumferential area of the writing fluid reservoir, but rather transport it to the writing fluid conductor.

Der in den Schreibflüssigkeitsspeicher eingesetzte Schreibflüssigkeitsleiter ist vorzugsweise ein flankenoffener, Kapillar-Kanäle aufweisender Docht, der über seine Umfangsfläche Schreibflüssigkeit aus den radial inneren Enden der Fasern des Schreibflüssigkeitsspeichers aufnimmt.The writing fluid conductor inserted into the writing fluid reservoir is preferably a flank-open, capillary-channel wick which receives writing fluid from the radially inner ends of the fibers of the writing fluid reservoir via its peripheral surface.

Ein besonders einfacher Aufbau ergibt sich, wenn das vordere Ende des Schreibflüssigkeitsleiters die Schreibspitze bildet, da dann für Schreibflüssigkeitsleiter und Schreibspitze lediglich ein Bauelement erforderlich ist.A particularly simple construction results if the front end of the writing liquid conductor forms the writing tip, since then only one component is required for the writing liquid conductor and writing tip.

Die Erfindung wird im folgenden anhand der ein Ausführungsbeispiel zeigenden Figuren näher erläutert.

  • Figur 1 zeigt einen Schnitt durch ein Schreibgerät.
  • Figur 2 zeigt einen Schnitt entlang der Linie 11-11 aus Figur 1.
The invention is explained in more detail below with reference to the figures showing an embodiment.
  • Figure 1 shows a section through a writing instrument.
  • FIG. 2 shows a section along the line 11-11 from FIG. 1.

Das dargestellte Schreibgerät hat ein im wesentlichen zylindrisches, längliches Gehäuse 1, in dessen vorderem Ende eine Durchtrittsöffnung vorhanden ist, in die ein Stützröhrchen 3 eingesetzt ist. Ferner befindet sich in der vorderen Endfläche des Gehäuses 1 eine Belüftungsbohrung 2, über die ein Druckausgleich zwischen dem Innenraum des Gehäuses 1 und der Umgebung bewirkt wird.The writing instrument shown has an essentially cylindrical, elongated housing 1, in the front end of which there is a passage opening into which a support tube 3 is inserted. Furthermore, there is a ventilation hole 2 in the front end face of the housing 1, via which a pressure equalization between the interior of the housing 1 and the surroundings is effected.

In das Gehäuse 1 ist ein zylinderischer Schreibflüssigkeitsspeicher 4 eingesetzt, der sich im wesentlichen durch die gesamte Länge des Gehäuses erstreckt. Wie dargestellt, ist der Schreibflüssigkeitsspeicher aus einzelnen Fasern aufgebaut, die in Richtung ihrer Längserstreckung Kapillar-Kanäle bilden, wobei die Längserstreckung der Fasern radial verläuft. Das bedeutet, daß die Fasern ausgehend von einem koaxial in den Schreibflüssigkeitsspeicher eingesetzten Schreibflüssigkeitsleiter 5 radial nach außen verlaufen. Die Fasern stehen mit dem Schreibflüssigkeitsleiter 5 in flüssigkeitsleitender Verbindung, üblicherweise also in direkte Berührung, und der Schreibflüssigkeitsleiter 5 ist ein für diesen Zweck bekannter, flankenoffener Docht, der Kapillar-Kanäle aufweist. Er erstreckt sich aus dem Schreibflüssigkeitsspeicher 4 nach vorn durch die Durchtrittsöffnung im Gehäuse 1 und das Stützröhrchen 3, so daß sein vorderes Ende die Schreibspitze des Schreibgerätes bildet.A cylindrical writing fluid reservoir 4 is inserted into the housing 1 and extends essentially through the entire length of the housing. As shown, the writing fluid reservoir is constructed from individual fibers which form capillary channels in the direction of their longitudinal extent, the longitudinal extent of the fibers extending radially. This means that the fibers run radially outwards from a writing liquid conductor 5 inserted coaxially into the writing liquid memory. The fibers are in liquid-conducting connection, usually in direct contact, with the writing liquid conductor 5, and the writing liquid conductor 5 is a flank-open wick known for this purpose, which has capillary channels. It extends forward from the writing fluid reservoir 4 through the passage opening in the housing 1 and the support tube 3, so that its front end forms the writing tip of the writing instrument.

Im Gebrauch wird dem Schreibflüssigkeitsleiter 5 aus dem mit Schreibflüssigkeit, etwa Tinte getränkten Schreibflüssigkeitsspeicher 4 über die radial verlaufenden Kapillar-Kanäle des Schreibflüssigkeitsspeichers zugeführt, die im Schreibflüssigkeitsleiter 5 nach vorn zur Schreibspitze gelangt und von dort auf die Schreibunterlage aufgetragen wird.In use, the writing liquid conductor 5 is fed from the writing liquid storage 4 soaked with writing liquid, such as ink, via the radially extending capillary channels of the writing liquid storage, which reaches the writing tip 5 to the front and is applied to the writing pad from there.

Claims (3)

1. Writing implement having a writing fluid reservoir in the form of a fibre body which has capillary ducts in the direction of the longitudinal extents of the fibres, and having a housing receiving the writing fluid reservoir, in the front end of which housing there is held a writing tip, a writing fluid conductor, which is in fluid-conducting connection with the writing tip, extending coaxially in the writing fluid reservoir, characterised in that the writing fluid reservoir (4) consists of fibres extending perpendicular to and radially with respect to the longitudinal axis of the writing fluid conductor (5).
2. Writing implement according to claim 1, characterised in that the writing fluid conductor (5) is an open-flanked wick having capillary ducts.
3. Writing implement according to claim 1 or 2, characterised in that the front end of the writing fluid conductor (5) forms the writing tip.
EP87103491A 1986-04-16 1987-03-11 Writing instrument Expired - Lifetime EP0241706B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103491T ATE53794T1 (en) 1986-04-16 1987-03-11 WRITING INSTRUMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3612792 1986-04-16
DE19863612792 DE3612792A1 (en) 1986-04-16 1986-04-16 WRITING DEVICE

Publications (2)

Publication Number Publication Date
EP0241706A1 EP0241706A1 (en) 1987-10-21
EP0241706B1 true EP0241706B1 (en) 1990-05-02

Family

ID=6298790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103491A Expired - Lifetime EP0241706B1 (en) 1986-04-16 1987-03-11 Writing instrument

Country Status (7)

Country Link
US (1) US4764045A (en)
EP (1) EP0241706B1 (en)
JP (1) JPS62249798A (en)
AT (1) ATE53794T1 (en)
DE (2) DE3612792A1 (en)
ES (1) ES2015279B3 (en)
GR (1) GR3000468T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6416242B1 (en) 1993-11-12 2002-07-09 Dataprint R. Kaufmann Gmbh Efficient fluid dispensing utensil
DE19529865C2 (en) 1995-08-14 2002-02-28 Kaufmann R Dataprint Device for applying liquids to a base by means of an application element
FR2751919B1 (en) * 1996-08-02 1998-10-30 Conte LIQUID INK WRITING ARTICLE HAVING A RESERVOIR EQUIPPED WITH AN ANTI-PREDUCTION SYSTEM
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

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR676144A (en) * 1929-06-04 1930-02-19 Liquid Lipstick Tube
BE473698A (en) * 1946-06-08
US2554654A (en) * 1946-06-13 1951-05-29 Parker Pen Co Fountain pen
US2684052A (en) * 1948-09-11 1954-07-20 Parker Pen Co Writing instrument
GB903559A (en) * 1957-07-12 1962-08-15 Mentmore Mfg Co Ltd Improvements in or relating to fountain pens
US2983254A (en) * 1958-04-23 1961-05-09 Mentmore Mfg Co Ltd Fountain pens
NL279972A (en) * 1961-06-23
FR1325535A (en) * 1961-06-23 1963-04-26 Carter S Ink Co Medium liquid dispenser for marking instruments
US3113336A (en) * 1962-01-03 1963-12-10 Langnickel Arvid Ink marker
FR1439018A (en) * 1964-12-07 1966-05-20 Device intended to regulate the supply of writing instruments such as stylographs and others
FR87667E (en) * 1964-12-07 1966-09-23 Device intended to regulate the supply of writing instruments such as stylographs and others
FR89617E (en) * 1966-02-21 1967-07-21 Christian Ets Stylograph with capillary tip, interchangeable power supply unit
US3614248A (en) * 1967-07-25 1971-10-19 Katsumi Otsuka Pen wick made of synthetic resin
US3627868A (en) * 1968-05-24 1971-12-14 Takaji Funahashi Method of producing nibs for writing instruments
US3614247A (en) * 1968-12-10 1971-10-19 Teibow Co Ltd Writing instrument structure
US3604817A (en) * 1969-03-03 1971-09-14 Takaji Funahashi Writing instruments
US3843270A (en) * 1970-12-04 1974-10-22 Y Kiriu Nib and writing instrument construction with capillary action
JPS5035779Y2 (en) * 1971-08-10 1975-10-18
AR205344A1 (en) * 1973-05-11 1976-04-30 Global Control Int PROCEDURE FOR THE MANUFACTURE OF A BAR OF THERMOPLASTIC MATERIAL THAT PRESENTS INSIDE CAPILLARY CHANNELS TO OBTAIN CAPILLARY INK TRANSMISSION NIBS
GB1530685A (en) * 1975-03-03 1978-11-01 Graphic Controls Corp Marker pen
NL7701595A (en) * 1977-02-16 1978-08-18 Bok Edward Pen with absorbent plug in ink reservoir - has fibrous capillary ink feed unit and ink buffer compartment at reservoir lower end
CH631919A5 (en) * 1978-05-02 1982-09-15 Baumgartner Papiers Sa WRITING PEN WITH A CAPILLARY STORAGE AND METHOD FOR THE PRODUCTION THEREOF.
JPS6136387Y2 (en) * 1980-11-13 1986-10-22
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DE3343004C2 (en) * 1983-11-28 1986-04-03 Vermes Chemie GmbH & Co KG, 8156 Otterfing Writing implement

Also Published As

Publication number Publication date
DE3762490D1 (en) 1990-06-07
JPS62249798A (en) 1987-10-30
DE3612792C2 (en) 1988-03-24
US4764045A (en) 1988-08-16
DE3612792A1 (en) 1987-10-22
ES2015279B3 (en) 1990-08-16
GR3000468T3 (en) 1991-06-28
ATE53794T1 (en) 1990-06-15
EP0241706A1 (en) 1987-10-21

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