EP0234493A1 - Stylo à encre pour dessiner ou écrire - Google Patents

Stylo à encre pour dessiner ou écrire Download PDF

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Publication number
EP0234493A1
EP0234493A1 EP87102294A EP87102294A EP0234493A1 EP 0234493 A1 EP0234493 A1 EP 0234493A1 EP 87102294 A EP87102294 A EP 87102294A EP 87102294 A EP87102294 A EP 87102294A EP 0234493 A1 EP0234493 A1 EP 0234493A1
Authority
EP
European Patent Office
Prior art keywords
ink
chamber
writing
chambers
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.)
Granted
Application number
EP87102294A
Other languages
German (de)
English (en)
Other versions
EP0234493B1 (fr
Inventor
Klaus Dipl.-Ing. Frietsch
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.)
Schmidt Feintechnik GmbH
Original Assignee
Schmidt Feintechnik GmbH
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 Schmidt Feintechnik GmbH filed Critical Schmidt Feintechnik GmbH
Priority to AT87102294T priority Critical patent/ATE55331T1/de
Publication of EP0234493A1 publication Critical patent/EP0234493A1/fr
Application granted granted Critical
Publication of EP0234493B1 publication Critical patent/EP0234493B1/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
    • B43K7/00—Ball-point pens
    • B43K7/02—Ink reservoirs; Ink cartridges

Definitions

  • the invention relates to an ink or ink writing or drawing device of the type specified in the preamble of the main claim.
  • the ink is in a chamber or a storage space, from which it is supplied via an ink conductor of the writing tip, e.g. B. the pen.
  • This system has the advantage that the ink can be written out almost completely.
  • a decisive disadvantage of this system is that the volume of the air in the ink supply space, which flows in when the ink is consumed, changes as a result of external pressure and temperature fluctuations. These volume changes have to be controlled by a control system be balanced. The usual temperature and pressure fluctuations require a regulator volume that makes up at least a third of the ink container volume. This volume of controller is no longer available for ink storage. Despite such a sized controller, major temperature or pressure changes, such as z. B. occur during a flight at higher altitudes, volume changes in the amount of air entail, which lead to the leakage of the ink from the writing instrument.
  • Another disadvantage of this system is that the writing tip must always point downwards when writing.
  • a major disadvantage of this system is that the ink cannot be written out completely, since 10 to 15% of the ink in the memory is retained by capillary forces.
  • the ink delivery is not constant over the writing length. Rather, the ink delivery and thus the line width decrease to the same extent as the memory empties. Ink delivery is proportional to the amount of ink.
  • the mechanically unstable fiber storage creates difficulties for technological reasons. Since it can only be manufactured with large tolerances with regard to the dimensions and in particular the capillarity, the writing length of such writing instruments is subject to considerable tolerances. Furthermore, fiber storage of this type can change its volume, ie swell or shrink, if storage or composition are unfavorable, which can lead to rejects during or after production.
  • the aim of the present invention is to provide a device with a memory which combines the advantages of the two systems mentioned above while avoiding the disadvantages.
  • the writing instrument according to the invention is intended to ensure constant ink or ink delivery regardless of location, temperature and pressure with the largest possible storage volume.
  • the invention is based on a writing instrument construction, as is known in principle from US Pat. No. 2,681,041 and as described in the preamble of Main claim is specified.
  • an insert located in the storage chamber of the writing instrument housing serves as the ink reservoir, the fixed chamber partition walls of which delimit a plurality of chambers which are connected to one another and to the writing tip via an ink conductor carrying the nib.
  • This chamber insert is dimensioned such that the ink is held within the individual chambers by capillary forces, while the ventilation groove between the individual chambers does not act capillary.
  • This dimensioning has the decisive disadvantage that the individual chambers are emptied at the same time when the writing instrument is actuated, and that due to the capillarity of the chambers, as with the fiber stores, an ink residue is always retained.
  • the disadvantageous consequence is, as with writing utensils with fiber memories, that a uniform and complete emptying of the ink reservoir and thus a uniform font thickness up to. Emptying the memory is not guaranteed.
  • use with capillary-acting chambers is more difficult to produce because of the small spacings of the chamber partition walls, the large number of partition walls necessary taking up a not inconsiderable part of the storage volume.
  • the permanent ventilation of the chambers via a non-capillary ventilation channel in the known writing instrument has the further disadvantage that due to external influences, for. B. can be formed as a result of impacts, air bubbles and stored in the chambers, which can further promote the leakage of the ink when the temperature rises.
  • the invention proposes to dimension the individual chambers so that they do not exert any capillary forces on the writing fluid, and to form the ventilation channel between the chambers capillary.
  • the memory according to the invention enables a 50% higher fill quantity and a 30 % higher fill quantity compared to systems with free-standing ink, e.g. B. a fountain pen.
  • the device is largely independent of its function, since the ink is only by the effective capillary forces are transported in the ink conductor.
  • a writing instrument designed in this way can also be used with the writing tip pointing upwards or without gravitational forces, that is to say in space. Structural details and design options are given in the subclaims.
  • the chamber insert consists of ring disks with connecting webs corresponding to the chamber height, which are lined up on the concentrically arranged ink conductor.
  • only the chamber partition located at the front with respect to the writing tip is designed as an annular disc, while the remaining chamber partition walls are in the form of a circular disc, the ink conductor ending in the chamber located at the front.
  • the panes forming the chamber partition walls can be firmly connected to one another via their connecting webs and thus form a one-piece chamber insert.
  • the connecting webs can be located freely within the annular chambers according to claim 6 or the annular chamber according to claim 7 on the side facing the ink conductor with formation of capillary openings limit.
  • the ventilation channels between the chambers must act capillary.
  • the ventilation channel connecting these ventilation openings with the atmosphere which itself does not have to be capillary, can be provided in the mouthpiece according to claim 8 or in the rear plug in the proposal according to claim 9.
  • the ink conductors can consist of fiber bundles with capillary action or else of a solid plastic rod with at least one capillary axial channel.
  • All common writing tips are suitable for applying the writing fluid, e.g. B. writing tips with writing balls according to claim 14, felt or fiber writing tips or tips made of extruded plastic according to claim 15, nibs according to claim 16 or writing tubes according to claim 17.
  • the device according to the invention is basically for Writing and drawing, i.e. for applying ink or ink to a writing pad. However, it is also suitable with the appropriate dimensions for applying liquids of different viscosity and composition, such as. B. for applying paints, gels, oils or liquid cosmetic products, such as. B. Perfumes.
  • the ink writing device has a barrel housing 10, in the interior of which the writing fluid is stored.
  • the rear end of the shaft housing 10 is closed with a plug 12, which rests flush with an annular shoulder 13 on the housing edge and projects into the housing with a sealing and support collar 14.
  • a mouthpiece 15 is inserted, which likewise rests flush with an annular shoulder 16 on the edge of the shaft housing and projects into the interior of the housing with a sealing and support collar 17.
  • a chamber insert 30, which forms the chambers, is clamped between the stopper 12 and the mouthpiece 15, the structure and mode of operation of which will be explained below.
  • Chamber insert 30 and mouthpiece 15, in particular its mouthpiece tube 21, are penetrated by a coaxially arranged ink conductor 27 which extends into a writing tip 22.
  • the writing tip 22, which rests flush with an annular shoulder 23 on the front end of the mouthpiece tube 21 and projects into it with a collar 26, has a writing ball 24 which is mounted in a ball bed provided with feed capillaries 25.
  • the supply capillaries 25 located between the front end of the ink conductor 27 and the writing ball 24 supply the writing ball 24 with the supplied writing liquid, namely the ink.
  • a chamber insert 30 consisting of a one-piece molded part has chamber partition walls 31 which are arranged parallel to one another and are connected to one another via connecting webs 32 and which delimit individual annular chambers 35 for receiving the ink.
  • the ink is not held between the chamber partitions 31 with capillary forces, while the chamber partitions 31 themselves lie as close as possible to the inner wall of the shaft housing 10 and to the surface of the ink conductor 27. Since a firm and liquid-tight connection between the partition walls 31 and the shaft housing 10 or the ink conductor 27 is generally not possible for manufacturing reasons, only capillary annular gaps 33 and 34 may be present between these parts.
  • the annular chambers 35 are open to the ink conductor 27 , which picks up the pending ink via the capillaries open to the chambers and conveys it to the writing tip 22 thanks to the capillary forces.
  • the chamber partition walls 31 are also provided with capillary ventilation openings 36.
  • air flows through a ventilation channel 18 and a ventilation chamber 19 of the mouthpiece 15 into a ventilation chamber 11 and from there via the respective ventilation openings 36 into the annular chamber 35, which is still filled with ink.
  • the inner bevelled edge of the on the mouthpiece 15 located collar 17 on the one hand supports the chamber insert 30 and on the other hand allows air to pass to the chambers 35 via the ventilation openings 36.
  • the second chamber etc. follows until all of the chambers 35 have released the stored ink almost completely.
  • the compensation always takes place via the ventilation channel 18 and the ventilation chambers 19 and 11, so that, unlike in known writing instruments, the ink cannot escape from the ink container under the effect of the pressure.
  • the ink writing device according to the invention according to the second exemplary embodiment, the axial section of which is shown in FIG. 3, corresponds in structure and mode of operation to the first exemplary embodiment according to FIGS. 1 and 2.
  • the second exemplary embodiment differs from the first essentially by a differently designed chamber insert 30 ', by a shorter-sized ink duct 27' and by the arrangement of the ventilation channel 18 'in the sealing plug 12'.
  • the distance between the chamber partition walls 31 is so large that they do not hold the ink capillary, while the chambers 35 are connected to one another and to the ventilation chamber 19 'via capillary ventilation openings 36, 37 and 38 or capillary annular gaps 33.
  • the shorter-dimensioned ink conductor 27 ′ ends in the annular chamber 35 located at the front with respect to the writing tip 22 and connects it to the writing tip 22 via one or more capillary axial channels 28.
  • the ink of the annular chamber 35 located at the front also becomes taken.
  • the respective front chambers are supplied with ink via the capillary ventilation openings 36, 37 or the outer capillary annular gaps 33, so that, unlike the embodiment according to FIG. 1, the chambers 35 can be emptied one after the other.
  • this exemplary embodiment has manufacturing advantages over the previously explained exemplary embodiment.
  • the shortening of the ink line also reduces the risk of dripping, since a trapped air may be less effective when the temperature or pressure increases than with a longer ink line.
  • FIGS. 4 and 5 show a slightly modified chamber insert 30 ′′, which can optionally be used instead of the chamber insert 30 or 30 ′ in FIGS. 1 and 3 and offers manufacturing advantages.
  • the annular chambers 35 are formed by annular partition partition walls 31 ′′ which are connected to one another via cylindrical connecting webs 32 ′′ which enclose the channel 40 for receiving the ink conductor (not shown) and thus lie closely against the ink conductor in the installed state.
  • These connecting webs 32 "are penetrated by axially parallel openings 39, which the Form connection between the annular chamber 35 and the ink conductor located in the channel 40. In this way, compared to the arrangement according to FIGS. 1 and 3, a possibly more controllable and more uniform ink flow between the annular chambers 35 and the ink conductor is achieved.
  • a chamber insert similar to that shown in FIG. 4 can also be formed from individual annular disks 31 "'with integral and integrally formed cylindrical connecting webs 32'" which are connected to the ink line, not shown in FIG required number can be lined up.
  • the annular discs 31 "'with the connecting webs 32"' correspond to the chamber partition walls 31 "and the connecting webs 32" of the chamber insert 30 "according to FIGS. 4 and 5.
  • the first filling of the writing instrument acc. Fig. L or 3 with ink is caused by the fact that a negative pressure is generated within the housing 10 and the ink is sucked through the mouthpiece 15. In this way, simple and safe filling in series production is possible.

Landscapes

  • Pens And Brushes (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
EP87102294A 1986-02-20 1987-02-18 Stylo à encre pour dessiner ou écrire Expired - Lifetime EP0234493B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87102294T ATE55331T1 (de) 1986-02-20 1987-02-18 Tinten- bzw. tuscheschreib- oder zeichengeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3605458 1986-02-20
DE3605458 1986-02-20

Publications (2)

Publication Number Publication Date
EP0234493A1 true EP0234493A1 (fr) 1987-09-02
EP0234493B1 EP0234493B1 (fr) 1990-08-08

Family

ID=6294555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102294A Expired - Lifetime EP0234493B1 (fr) 1986-02-20 1987-02-18 Stylo à encre pour dessiner ou écrire

Country Status (6)

Country Link
US (1) US4770558A (fr)
EP (1) EP0234493B1 (fr)
JP (1) JPS62220400A (fr)
AT (1) ATE55331T1 (fr)
DE (1) DE3764112D1 (fr)
ES (1) ES2016578B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281539A1 (fr) * 2000-05-08 2003-02-05 Hics Corporation Accessoire d'ecriture

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4100644A1 (de) * 1990-01-20 1991-08-29 Schmidt Feinmech Schreib- oder dosiergeraet
DE4013510C2 (de) * 1990-04-27 1995-04-20 Rotring Int Gmbh Röhrchenschreiberspitze, insbesondere für die Verwendung in Zeichenplottern
JPH066087B2 (ja) * 1990-06-20 1994-01-26 有限会社ムクサ 化粧水の塗布具
US6089776A (en) * 1991-05-14 2000-07-18 Kaufmann; Rainer Fluid dispensing utensil
DE4115685C3 (de) * 1991-05-14 2001-07-05 Dataprint Datendrucksysteme R Schreibgerät mit in einem Behälter frei aufgenommener Schreibflüssigkeit
US5290116A (en) * 1992-06-23 1994-03-01 Chang Shin Ju D Flow control for writing instruments
US5336009A (en) * 1993-05-10 1994-08-09 Jean Young Ink guide for a ballpoint pen
US5358349A (en) * 1993-11-03 1994-10-25 Revell-Monogram, Inc. Glue applicator
US6322268B1 (en) 1993-11-12 2001-11-27 Avery Dennison Corporation Efficient fluid dispensing utensil
US6416242B1 (en) 1993-11-12 2002-07-09 Dataprint R. Kaufmann Gmbh Efficient fluid dispensing utensil
DE19529865C2 (de) 1995-08-14 2002-02-28 Kaufmann R Dataprint Gerät zum Auftragen von Flüssigkeiten auf eine Unterlage mittels eines Auftragselements
US5960802A (en) * 1995-12-06 1999-10-05 Tmc Kaken Kabushiki Kaisha Pen-type chemical applicator
US5906446A (en) * 1996-10-22 1999-05-25 Bic Corporation Fillerless writing instrument
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
WO2003018327A1 (fr) * 2001-08-23 2003-03-06 Hics Corporation Instrument graphique
WO2003101759A1 (fr) * 2002-05-31 2003-12-11 Hics Corporation Instrument d'ecriture
WO2004000575A1 (fr) * 2002-06-24 2003-12-31 Hics Corporation Instrument d'ecriture
JP4137963B2 (ja) * 2006-09-08 2008-08-20 三菱鉛筆株式会社 筆記具
AU2017382717B2 (en) 2016-12-20 2020-05-21 Colgate-Palmolive Company Fluid supply apparatus and personal care implement containing the same
US11000117B2 (en) 2016-12-20 2021-05-11 Colgate-Palmolive Company Fluid dispensing implement having curly tube with vent openings
MX2019006921A (es) 2016-12-20 2019-09-02 Colgate Palmolive Co Aparato de suministro de liquidos e implemento para el cuidado personal que lo contiene.
WO2018118588A1 (fr) 2016-12-20 2018-06-28 Colgate-Palmolive Company Appareil d'alimentation en fluide et accessoire de soins personnels le contenant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1030853A (fr) * 1951-01-10 1953-06-17 Stylomine Ets Dispositif d'alimentation empêchant les fuites d'encre dans les réservoirs à bille
FR1060105A (fr) * 1952-05-29 1954-03-30 Ready Stylos Soc Appareil à bille pour écrire
US2681041A (en) * 1946-06-08 1954-06-15 Parker Pen Co Fountain pen
US3115119A (en) * 1961-05-02 1963-12-24 Parker Pen Co Hubbed washer overflow ink collector
US3129696A (en) * 1960-04-12 1964-04-21 Samuel Sklar Ball point fountain pen
DE3415859A1 (de) * 1984-04-28 1985-11-07 Schmidt Feintechnik GmbH, 7742 St. Georgen Plotterstift

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US2187528A (en) * 1937-06-07 1940-01-16 Russell T Wing Fountain pen
US2504649A (en) * 1945-02-14 1950-04-18 Eagle Pencil Co Ball point writing implement
US2694382A (en) * 1951-06-07 1954-11-16 Benjamin F Miessner Nonflooding fountain pen
US3947137A (en) * 1973-12-18 1976-03-30 The Sailor Pen Co., Ltd. Socket for a ball point pen
US4207012A (en) * 1975-09-25 1980-06-10 Koh-I-Noor Rapidograph, Inc. Ink compensating chamber for scriber
DE3010944C2 (de) * 1980-03-21 1985-08-08 Rotring-Werke Riepe Kg, 2000 Hamburg Schreibgerät
JPS58219099A (ja) * 1982-06-15 1983-12-20 株式会社壽 筆記具
DE3420287C2 (de) * 1983-06-03 1985-11-14 Pilot Man-Nen Hitsu K.K., Tokio/Tokyo Einsatz für ein Schreibgerät
JPH029997Y2 (fr) * 1985-06-26 1990-03-13

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681041A (en) * 1946-06-08 1954-06-15 Parker Pen Co Fountain pen
FR1030853A (fr) * 1951-01-10 1953-06-17 Stylomine Ets Dispositif d'alimentation empêchant les fuites d'encre dans les réservoirs à bille
FR1060105A (fr) * 1952-05-29 1954-03-30 Ready Stylos Soc Appareil à bille pour écrire
US3129696A (en) * 1960-04-12 1964-04-21 Samuel Sklar Ball point fountain pen
US3115119A (en) * 1961-05-02 1963-12-24 Parker Pen Co Hubbed washer overflow ink collector
DE3415859A1 (de) * 1984-04-28 1985-11-07 Schmidt Feintechnik GmbH, 7742 St. Georgen Plotterstift

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1281539A1 (fr) * 2000-05-08 2003-02-05 Hics Corporation Accessoire d'ecriture
EP1281539A4 (fr) * 2000-05-08 2007-02-14 Hics Corp Accessoire d'ecriture

Also Published As

Publication number Publication date
US4770558A (en) 1988-09-13
ES2016578B3 (es) 1990-11-16
EP0234493B1 (fr) 1990-08-08
DE3764112D1 (de) 1990-09-13
JPS62220400A (ja) 1987-09-28
ATE55331T1 (de) 1990-08-15

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