EP0533676B1 - Unite d'ecriture pour stylographe a cartouche - Google Patents

Unite d'ecriture pour stylographe a cartouche Download PDF

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Publication number
EP0533676B1
EP0533676B1 EP91901677A EP91901677A EP0533676B1 EP 0533676 B1 EP0533676 B1 EP 0533676B1 EP 91901677 A EP91901677 A EP 91901677A EP 91901677 A EP91901677 A EP 91901677A EP 0533676 B1 EP0533676 B1 EP 0533676B1
Authority
EP
European Patent Office
Prior art keywords
ink
air duct
longitudinal gap
writing unit
capillary
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
EP91901677A
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German (de)
English (en)
Other versions
EP0533676A1 (fr
Inventor
Otto Mutschler
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT91901677T priority Critical patent/ATE98572T1/de
Publication of EP0533676A1 publication Critical patent/EP0533676A1/fr
Application granted granted Critical
Publication of EP0533676B1 publication Critical patent/EP0533676B1/fr
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
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/18—Arrangements for feeding the ink to the nibs

Definitions

  • the invention relates to a writing unit for a cartridge fountain pen, in particular a writing unit for a cartridge fountain pen with a nib, a handle and an ink feeder, the ink feeder having lamella-like collecting chambers, the side of the ink feeder facing the nib extending over the entire length of the ink feeder from one Capillary longitudinal gap is drawn through and an air channel extends from the longitudinal gap in the radial direction to the outside.
  • Cartridge fountain pens with writing units of the type in question have been known for decades, see e.g. DE-B 1 230 331. Cartridges filled by the manufacturer and sealed with a ball are pierced for use by means of a push-through pin of the writing unit, the ball serving to close the cartridge being pressed into the interior of the cartridge to pierce the cartridge. Even after decades of introducing the cartridge fountain pen in question, writing a new or cleaned cartridge fountain pen is still extremely problematic. On the one hand, it takes minutes for the conventional writing units or the ink guide systems used there, and therefore too long, until the ink reaches the nib after the cartridge is pierced and all the capillaries important for proper functioning are filled with ink.
  • the invention is therefore based on the object of designing and developing the writing unit for cartridge fountain pens of the type mentioned at the outset such that, in particular, in the case of ink feeders dimensioned for large font widths Dripping or leakage of the ink after piercing the cartridge is prevented and the work process is accelerated, on the other hand blotches are largely prevented in the event of pressure and temperature fluctuations.
  • the writing unit according to the invention achieves the above object by means of the features of patent claim 1.
  • the air duct then extends in the longitudinal direction over the entire area of the collecting chambers up to a control section which is designed at the end of the collecting chambers facing the writing pen and serves as a liquid valve.
  • the air duct is delimited in the radial direction by a surface opposite the longitudinal gap.
  • the air duct on the side opposite the longitudinal gap extends to the overflow capillary that connects the flow chambers with the flow chamber.
  • the controlled system fills with ink as quickly as possible. If underpressure arises during writing, the controlled system empties, ie tears open, and allows air to flow through the air duct to the cartridge. The controlled system is then closed again by the ink flowing in as long as there is no longer a negative pressure, that is to say no more ink is removed.
  • the collecting chambers take over the expanding air or the ink located in the ink feeder.
  • the ink is not pressed out of the ink feeder towards the spring, but instead passes through the overflow capillary into the collecting chambers, which are only connected to one another via the overflow capillary and on the other hand to the longitudinal gap or the air duct.
  • the measures according to the invention on the one hand prevent ink from dripping, in particular when the ink feeder is designed for large font widths and thus for a considerable ink delivery volume.
  • a separate overflow capillary is provided for each collecting chamber.
  • the collecting chambers are connected to one another on the one hand only via the overflow capillary, on the other hand to the longitudinal gap or the air duct.
  • Such an embodiment of the ink feeder has the consequence that even with dimensioning of the capillary longitudinal gap for realizing large font widths, ie when realizing a large ink throughput, the ink in the ink feeder is not then pushed out of the ink feeder when the gas in the ink feeder or the air there expands due to temperature fluctuations. This is because the ink reaches the collecting chambers, which then serve as ink stores, via defined flow paths, which in this case have the function of a buffer.
  • the collecting chambers compensate for the expansion of the air due to temperature fluctuations, the above features ensure reliable control of the ink, which prevents leakage and in particular also increases the resistance to shaking. Significant insensitivity to temperature fluctuations is guaranteed.
  • the air duct widens with stair-shaped walls up to the side opposite the longitudinal gap.
  • the ink fills the air channel from the capillary longitudinal gap from level to level, whereby the air channel is quickly filled with ink as a whole with sufficient wetting behavior between the ink feeder and the ink. So the ink quickly gets into the overflow capillary and finally into the controlled system.
  • the air duct with wavy walls extends up to the side opposite the longitudinal gap, with sharp edges as "obstacles" for the spreading of the ink being avoided in comparison with the above-mentioned configuration and the refilling process thereby being repeated accelerates.
  • the air duct is expanded with concave or convex walls up to the side opposite the longitudinal gap.
  • the air duct is quickly filled with ink.
  • the side of the air duct opposite the longitudinal gap is delimited by a likewise concave or convex wall.
  • it is particularly advantageous both in terms of a short filling time of the air duct and in terms of a simple constructional or manufacturing design of the air duct if the air duct expands up to the surface opposite the longitudinal gap in such a way that the air duct has a triangular cross section.
  • the triangular cross section of the air duct could either have the shape of an isosceles triangle or the shape of an equilateral triangle.
  • FIG. 1 and 2 together show an embodiment of a writing unit according to the invention for a cartridge fountain pen.
  • This writing unit which is only shown here by way of example, has as essential components a pen 1, a handle 2 and an ink feeder 3.
  • the ink feeder 3 has lamella-like collecting chambers 3e, the side of the ink feeder 3 facing the pen 1 being traversed by a capillary longitudinal gap 3a over the entire length of the ink feeder.
  • the longitudinal gap 3a merges with the outside in the entire area of the collecting chambers 3e into an air channel 3c, which takes up a substantially larger cross-sectional area than the longitudinal gap 3a.
  • the side of the air duct 3c opposite the longitudinal gap 3a extends to the overflow capillary 3d connecting the collecting chambers 3e. In the longitudinal direction, the air duct 3c extends to a control section 3g provided at the spring-side end of the collecting chambers 3e.
  • the air duct 3c extends in the longitudinal direction over the entire area of the collecting chambers 3e up to a control section 3g formed at the end of the collecting chambers 3e facing the pen and serving as a liquid valve. In the radial direction, the air duct 3c is delimited by a surface opposite the longitudinal gap 3a. The air duct 3c extends on the side opposite the longitudinal gap 3a to an overflow capillary 3d which connects the collecting chambers 3e with flow.
  • the figures show that the collecting chambers 3e are connected to one another and to the air channel 3c or the longitudinal gap 3a only via the overflow capillary 3d. Ink and air therefore only get into the collecting chambers or out of the collecting chambers 3e via the overflow capillary 3d.
  • the air duct 3c extends up to the surface opposite the longitudinal gap in such a way that the air duct 3c has a triangular cross section.
  • the triangular cross section of the air duct 3c in the preferred embodiment here has the shape of an isosceles triangle.
  • the handle 2 has a bore 2a, a recess 2b, a flat stop 2c, a stepped bore 2d, a shoulder 2e, a piercing pin 2f with a rear end 2g and a flange 2h.
  • the capillary gap 3a flow-connected collecting chambers 3e, slats 3f delimiting the collecting chambers 3e, a control section 3g serving as a liquid valve, a transverse rib 3h, a pin 3i and a flange 3k.
  • air grooves 4, 4b and a transverse groove 4a can be seen.
  • the air duct 3c is designed in a triangular shape. Furthermore, the lamellae 3f, overflow capillary 3d, the controlled system 3g, the air groove 4 and the air grooves 4c can be seen from the illustration in question.
  • FIG. 4 shows the object from FIGS. 1 and 2 in a cross section that is placed differently than in FIG. 3, namely along the line C-D.
  • the handle 2 the ink feeder 3 and a lamella 3f can be seen.
  • this illustration shows the position or configuration of the capillary gap 3a, the air duct 3c which is triangular in cross section, the air groove 4 and the air grooves 4c.
  • FIG. 5 again shows the object from FIGS. 1 and 2 in section along the line E-F.
  • the handle 2 with the piercing pin 2f and the pin 3i on the ink feeder 3 can be clearly seen.
  • the capillary longitudinal gap 3a in the pin 3i on the ink feeder 3 is shown.
  • the ink when the cartridge is pierced, the ink always flows first into the capillary longitudinal gap due to the capillary action and from there to the nib. Only through a backflow from the nib - namely through a backflow in the capillary longitudinal gap - the controlled system, the air duct and the overflow capillary are gradually filled with ink, so that a further inflow of air into the cartridge and thus an outflow of the ink from the cartridge is prevented.
  • the ink can thus flow into the ink supply system.
  • the ball volume and the piercing pin 2f cause a compression of the air inside the cartridge, which favors the writing of the writing instrument.
  • the inventive design of the ink feeder 3 ensures that not only the capillary gap 3a, which supplies the pen 1 with ink, but also the two triangular tips of the air channel 3c are almost simultaneously filled with ink due to their capillary action.
  • the ink flowing out of the cartridge fills the capillary-acting corners of the triangle of the air duct almost simultaneously with the capillary longitudinal gap 3a - in both cases by capillary action.
  • the overflow capillary 3d on the ink feeder 3 and the control path 3g are filled with ink and closed in time so that the ink can no longer flow when it has arrived in the nib 1b due to capillary action. This is because the air can no longer flow into the cartridge through the ink path 3g, which ultimately prevents ink from dripping.
  • the collecting chambers 3e also serve to receive ink in the event of air expansion in the capillary longitudinal gap 3a or in the air duct 3c and thus compensate for air expansion in the writing instrument caused by temperature fluctuations. This effectively prevents ink from dripping.
  • This measure based on the connection between the collecting chambers 3e with the capillary longitudinal gap 3a or the air duct 3c, exclusively via individual overflow capillaries 3d, provides this protection against temperature fluctuations, but also a certain resistance to shaking, in particular with ink feeders 3, which are suitable for font widths of up to 2.7 mm are designed approximately.

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

Abstract

Une unité d'écriture pour un stylographe à cartouche comportant une plume (1), un corps (2) et un système d'arrivée d'encre (3), unité dans laquelle le système d'arrivée d'encre (3) présente des chambres réceptrices (3e) à lamelles, dans laquelle le côté du système d'arrivée d'encre (3) qui est tourné vers la plume (1) est traversé sur toute la longueur de ce système d'arrivée d'encre (3) par une fente longitudinale capillaire (3a), et dans laquelle un canal d'air (3c) partant de la fente longitudinale (3a) s'élargit vers l'extérieur dans le sens transversal, est constituée, pour éviter une coulée de l'encre hors de la fente de la plume en particulier du fait de fortes variations de température dans le cas d'un système d'arrivée d'encre conçu également pour de grandes largeurs d'écriture, de telle manière que le canal d'air (3c) s'étend dans le sens longitudinal sur toute la zone des chambres réceptrices (3e) jusqu'à une zone de régulation (3g) qui est formée à l'extrémité, tournée vers la plume (1), des chambres de réception (3e) et qui fait office de soupape pour le liquide, de telle manière également que le canal d'air (3c) soit limité transversalement par une surface opposée à la fente longitudinale (3e) et de telle manière enfin que le canal d'air (3c), sur le côté opposé à la fente longitudinale (3a), atteigne des capillaires de décharge (3d) reliant le flux d'encre aux chambres réceptrices (3e).

Claims (9)

  1. Unité d'écriture pour un stylo à cartouche, comportant une plume (1), un élément de préhension (2) et un dispositif d'amenée d'encre (3), et dans laquelle le dispositif d'amenée d'encre (3) comporte des chambres de collecte (3e) agencées en forme de lamelles, le côté, tourné vers la plume (1), du dispositif d'amenée d'encre (3) étant traversé sur toute la longueur du dispositif d'amenée d'encre (3) par une fente longitudinale capillaire (3a), et un canal d'aération (3c) s'élargit radialement vers l'extérieur à partir de la fente longitudinale (3a), caractérisée en ce que le canal d'aération (3c) s'étend sur toute la zone des chambres de collecte (3e) jusqu'au niveau d'une section de réglage (3g) et, dans la direction radiale, jusqu'à la surface située à l'opposé de la fente longitudinale (3a), et que le canal d'aération (3c) s'étend, sur le côté opposé à la fente longitudinale (3a), jusqu'au niveau d'un capillaire de trop-plein (3d), qui établit une liaison avec les chambres de collecte (3e).
  2. Unité d'écriture selon la revendication 1, caractérisée en ce que pour chaque chambre de collecte (3e), il est prévu un capillaire de trop-plein (3d) et que les chambres de collecte (3e) sont raccordées fluidiquement exclusivement par l'intermédiaire du capillaire de trop-plein (3d) d'une part entre elles et d'autre part à la fente longitudinale (3a) ou au canal d'aération (3c).
  3. Unité d'écriture selon la revendication 1 ou 2, caractérisée en ce que le canal d'aération (3c) s'élargit, avec des parois en forme d'escalier, jusqu'au niveau du côté situé à l'opposé de la fente longitudinale (3a).
  4. Unité d'écriture selon la revendication 1 ou 2, caractérisée en ce que le canal d'aération (3c) s'élargit, avec des parois de forme ondulée, jusqu'au niveau du côté situé à l'opposé de la fente longitudinale (3a).
  5. Unité d'écriture selon la revendication 1 ou 2, caractérisée en ce que le canal d'aération (3c) s'élargit, avec des parois concaves ou convexes, jusqu'au niveau du côté situé à l'opposé de la fente longitudinale (3a).
  6. Unité d'écriture selon la revendication 5, caractérisée en ce que le côté, qui est situé à l'opposé de la fente longitudinale (3a), du canal d'aération (3c) est limité par une paroi concave ou convexe.
  7. Unité d'écriture selon la revendication 1 ou 2, caractérisée en ce que le canal d'aération (3c) s'élargit jusqu'au niveau de la surface située à l'opposé de la fente longitudinale (3a) de telle sorte que le canal d'aération (3c) possède une section transversale triangulaire.
  8. Unité d'écriture selon la revendication 7, caractérisée en ce que la section transversale triangulaire du canal d'aération (3c) possède la forme d'un triangle isocèle.
  9. Unité d'écriture selon la revendication 7, caractérisée en ce que la section transversale triangulaire de canal d'aération (3c) possède la forme d'un triangle équilatéral.
EP91901677A 1990-06-09 1991-01-15 Unite d'ecriture pour stylographe a cartouche Expired - Lifetime EP0533676B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91901677T ATE98572T1 (de) 1990-06-09 1991-01-15 Schreibeinheit fuer einen patronenfuellhalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4018598A DE4018598A1 (de) 1990-06-09 1990-06-09 Schreibeinheit fuer einen patronenfuellhalter
DE4018598 1990-06-09

Publications (2)

Publication Number Publication Date
EP0533676A1 EP0533676A1 (fr) 1993-03-31
EP0533676B1 true EP0533676B1 (fr) 1993-12-15

Family

ID=6408166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91901677A Expired - Lifetime EP0533676B1 (fr) 1990-06-09 1991-01-15 Unite d'ecriture pour stylographe a cartouche

Country Status (6)

Country Link
US (1) US5372445A (fr)
EP (1) EP0533676B1 (fr)
JP (1) JP2722133B2 (fr)
CA (1) CA2079451A1 (fr)
DE (2) DE4018598A1 (fr)
WO (1) WO1991019615A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221609A1 (de) * 1992-07-01 1994-01-13 Otto Mutschler Schreibeinheit für einen Patronenfüllhalter
US5906446A (en) * 1996-10-22 1999-05-25 Bic Corporation Fillerless writing instrument
JP4454061B2 (ja) * 1999-05-17 2010-04-21 三菱鉛筆株式会社 筆記具
KR20020037024A (ko) 1999-07-19 2002-05-17 추후제출 필기구

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1483675A (en) * 1920-12-29 1924-02-12 Kritikson Bros Inc Feed bar for fountain pens
NL25024C (fr) * 1928-03-05
DE867213C (de) * 1951-08-08 1953-02-16 C Josef Lamy Tintenleiteranordnung
GB761030A (en) * 1953-11-24 1956-11-07 Edgar Byron Nichols Improvements in liquid flow-control
DE1121973B (de) * 1956-12-22 1962-01-11 Montblanc-Simplo G.m.b.H., Hamburg Tintenleiter für Füllfederhalter
GB885374A (en) * 1958-01-15 1961-12-28 Conway Stewart & Company Ltd Improvements in or relating to fountain pens
BR6134630D0 (pt) * 1960-12-07 1973-10-23 Parker Pen Co Caneta tinteiro
DE1230331B (de) * 1961-01-21 1966-12-08 Faber Castell A W Fuellfederhalter mit eingekapseltem, exzentrische Tintenringkammern aufweisendem Tintenleiter
FR1317286A (fr) * 1961-12-27 1963-02-08 Fagard A J & Cie Perfectionnement aux dispositifs pour l'amenée d'encre à la plume d'un stylographe
US3402008A (en) * 1964-12-18 1968-09-17 Parker Pen Co Writing instrument
DE1461628A1 (de) * 1965-04-30 1969-03-27 Montblanc Simplo Gmbh Tintenleiter fuer Fuellfederhalter
DE1511371A1 (de) * 1966-09-12 1969-06-12 Montblanc Simplo Gmbh Tintenleiter fuer Fuellfederhalter
GB1346580A (en) * 1970-12-21 1974-02-13 Perry Ltd E S Pens
EP0091610B1 (fr) * 1982-03-30 1986-06-04 Anweiler, Walter, Ing. (grad.) Conducteur d'encre pour stylographe
DE3338227C2 (de) * 1983-10-21 1985-11-28 Mutschler, Otto, 6900 Heidelberg Tintenleiter für Schreibgeräte
DE3421417A1 (de) * 1984-06-08 1985-12-12 Walter Ing.(grad.) 6907 Nußloch Anweiler Tintenleiter fuer fuellfederhalter
DE3445944C1 (de) * 1984-12-17 1986-06-05 Otto 6900 Heidelberg Mutschler Tintenleiter fuer Roehrchenschreiber
DE3526578C1 (en) * 1985-07-25 1987-03-05 Otto Mutschler Ink guide for a cartridge-type or piston-type fountain pen
DE3736954C1 (de) * 1987-10-31 1988-12-15 Montblanc Simplo Gmbh Tintenleiter fuer einen Fuellfederhalter

Also Published As

Publication number Publication date
US5372445A (en) 1994-12-13
JP2722133B2 (ja) 1998-03-04
DE4018598A1 (de) 1991-12-12
DE59100743D1 (de) 1994-01-27
JPH05507245A (ja) 1993-10-21
EP0533676A1 (fr) 1993-03-31
CA2079451A1 (fr) 1991-12-10
WO1991019615A1 (fr) 1991-12-26

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