EP0114947B1 - Instrument d'écriture à encre liquide - Google Patents

Instrument d'écriture à encre liquide Download PDF

Info

Publication number
EP0114947B1
EP0114947B1 EP83110941A EP83110941A EP0114947B1 EP 0114947 B1 EP0114947 B1 EP 0114947B1 EP 83110941 A EP83110941 A EP 83110941A EP 83110941 A EP83110941 A EP 83110941A EP 0114947 B1 EP0114947 B1 EP 0114947B1
Authority
EP
European Patent Office
Prior art keywords
writing
wick
membrane
housing
casing
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
Application number
EP83110941A
Other languages
German (de)
English (en)
Other versions
EP0114947A3 (en
EP0114947A2 (fr
Inventor
Christoph Manusch
Günter Scholz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pelikan GmbH
Original Assignee
Pelikan 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 Pelikan GmbH filed Critical Pelikan GmbH
Priority to AT83110941T priority Critical patent/ATE22256T1/de
Publication of EP0114947A2 publication Critical patent/EP0114947A2/fr
Publication of EP0114947A3 publication Critical patent/EP0114947A3/de
Application granted granted Critical
Publication of EP0114947B1 publication Critical patent/EP0114947B1/fr
Expired 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
    • B43K8/04—Arrangements for feeding ink to writing-points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K1/00—Nibs; Writing-points
    • B43K1/12—Writing-points comprising fibres; Felt pads

Definitions

  • the invention relates to a method for producing a writing device for liquid writing media with a writing wick which can be inserted into an opening in the tip of a housing and which, with its end facing the interior of the housing, projects into a memory for the writing medium through a membrane into which one is of a size and shape of the opening adapted to the writing wick.
  • a method of this kind is known from US-H-926 011.
  • a thin membrane is provided, which is penetrated by the writing wick itself when it is inserted into the tip.
  • the known method has the disadvantage that it is only suitable for a very thin membrane which has to be pierced by the writing wick. Thick membranes, in particular, cannot be pierced by thin writing wicks without damaging the wick.
  • a thin membrane does not ensure a sufficiently tight fit, since a thin membrane does not apply the pressing forces required for a reliable seal.
  • the writing wick can easily bend or the wick can be inserted crookedly, thereby affecting the flow of the writing medium from the memory into the wick.
  • the rotationally symmetrically graduated writing wick with its thinner section is pressed into a bore in the tip of the housing, so that the friction between the housing and the writing wick holds the writing wick in its installed position.
  • the step on the wick facilitates the axial positioning of the wick when it is pressed into the housing.
  • This known wick holder has the disadvantage that the hole in the housing must be relatively long in order to reliably align the wick when it is pressed in. Nonetheless, with soft housing materials, the wick can be inserted crookedly, which impairs the flow of the writing medium from the memory into the wick. In addition, the rear end of the wick itself is pressed into the ink cartridge.
  • the fiber wick is arranged in the bore of a plastic sleeve which is inserted into the opening in the tip of the housing of the writing instrument.
  • the plastic sleeve has ventilation channels running in the longitudinal direction in the longitudinal direction, which are used for ventilation of the ink reservoir.
  • cams are provided in the bore of the plastic sleeve between the ventilation channels, which press inward when the sleeve is pulled into the housing and thus clamp the writing wick there.
  • the invention has for its object to provide a method for producing a writing device for liquid writing media of the type mentioned, which is suitable for the installation of different types of wick, in which the wick is surrounded as closely as possible by the membrane and in which the wick is Insertion is avoided as far as possible from canting and bending.
  • this object is achieved in that the membrane in the housing is pierced by a profile mandrel inserted through the opening and corresponding to the writing wick to be assembled, and that after the profile mandrel is pulled out, the writing wick is inserted into the opening.
  • Housing 1 requires only two cores, one of which is inserted into the interior 5 and the other into the bore 2. Both cores touch each other at the interface between the spaces 4 and the cavities 8. By one Axial distance between the cores creates a cavity through which the membrane 6 is formed during spraying.
  • the guide ribs 3 are formed by longitudinal grooves in the core forming the bore 2 and the retaining webs 7 are formed by radial slots in the front end of the core forming the interior 5.
  • the housing 1 shown is suitable for inserting different types of writing wicks.
  • the membrane 6 is pierced during the assembly process by means of a profile mandrel corresponding to the respective writing wick.
  • the inner end of the writing wick penetrates the opening pushed into the membrane and thereby receives an additional, form-fitting support in the housing 1.
  • the restoring properties of the plastics from which the housing 1 is made the form fit between the membrane and the wick used after assembly is increased.
  • the conical shape of the membrane centers the inserted wick end and prevents the writing wick from buckling when inserted.
  • FIGS. 3.1 and 3.2 show the insertion of a thin, metal-enclosed writing wick into the housing 1.
  • the membrane 6 is first pierced by a profile mandrel 10 with a tip 9.
  • the diameter of the profile mandrel 10 corresponds approximately to the diameter of the writing wick 11.
  • the writing wick 11 is then inserted into the puncture in the membrane.
  • the writing wick 11 has a metal sleeve 12 which is held between the guide ribs 3.
  • the metal sleeve 12 and the membrane 6 ensure double storage of the writing wick 11 in the housing 1. With its thicker shaft 13, the profile mandrel slides on the guide ribs 3.
  • Figure 4.1 shows the piercing of the membrane 6 with a profile mandrel 14 of cylindrical basic shape, the front end of which has a flat 15 lying in the central plane, and the end face is chamfered to form a cutting edge 16.
  • the profile mandrel 14 guided on the guide ribs 3 uses its cutting edge 16 to separate the membrane 6 from the guide ribs 3 on one side and bends it laterally.
  • a writing wick 17, which is divided at its end, is then inserted into the opening prepared in this way.
  • the writing wick 1 is brought into the position corresponding to the position of the profile mandrel by a wick dividing device connected upstream of the assembly station for the subsequent assembly and is inserted into the housing 1 by the assembly device in this position.
  • the writing wick 17 reaches the end position shown in FIG. 4.2, in which it rests with its step surface 19 on the stop 18 formed by the membrane 6.
  • the described configuration of the receptacle for the writing wick 17 effectively prevents the writing wick 17 from tilting when it is inserted into the housing 1.
  • the outer edge 20 of the membrane 6 which remains after the membrane 6 has been pierced by means of the profile mandrel 14 surrounds the outer surface of the writing wick 17 without play and thereby forms an additional support.
  • FIGS. 5.1 and 5.2 The assembly of a unmounted, cylindrical writing wick with a stepped lateral surface is shown in FIGS. 5.1 and 5.2.
  • the membrane 6 is pierced and expanded with a profile mandrel 21.
  • the unmounted wick 22 is then pushed into the housing 1 until its step 23 abuts the stop 24 formed by the outer edge of the membrane 6.
  • the widened section of the membrane 6 ensures that the writing wick is firmly clamped and thereby forms a good holder for the writing wick in the axial and radial directions.
  • the exemplary embodiment described is suitable for producing the housing 1 from a crystalline or also from an impact-resistant, amorphous plastic.
  • the types of wick used can consist of resin-bonded fibers or sintered powder. Extruded wicks with longitudinal capillaries are also suitable for the housing design according to the invention. Due to the high holding forces that can be achieved with the membrane 6, additional holding means such as pins or adhesives can be omitted.

Landscapes

  • Pens And Brushes (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Claims (5)

1. Procédé pour la fabrication d'un instrument d'écriture à encre liquide, comportant une mèche d'écriture (11, 17, 22) qui s'insère dans une ouverture (2) ménagée dans la pointe d'un boîtier (1), et qui pénètre, par son extrémité dirigée vers l'intérieur du boîtier, à travers une membrane (6), dans un réservoir (5) à encre liquide, membrane dans laquelle est pratiqué, par enfoncement, un orifice adapté en grandeur et en forme à la mèche d'écriture, procédé caractérisé en ce que la membrane
(6), prévue dans le boîtier (1), est percée par un poinçon profilé (10, 14, 21) qui correspond à la mèche d'écriture (11, 17, 22) à monter et est introduit par l'ouverture (2), et en ce que, après le retrait du poinçon profilé, la mèche d'écriture est insérée dans l'ouverture.
2. Procédé selon la revendication 1, caractérisé en ce que l'ouverture (2) du boîtier (1) est pourvue de nervures de guidage (3) axiales, sur lesquelles est centré le poinçon profilé (10, 14, 21).
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la membrane (6) est constituée de forme conique, de telle manière que la pointe du cône se trouve dirigée vers le réservoir (5) à encre liquide.
4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'est utilisée une mèche d'écriture (17, 22) étagée, qui est introduite assez loin pour venir buter par un épaulement (19, 23) contre le bord extérieur de la membrane (6).
EP83110941A 1983-01-29 1983-11-03 Instrument d'écriture à encre liquide Expired EP0114947B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83110941T ATE22256T1 (de) 1983-01-29 1983-11-03 Schreibgeraet fuer fluessige schreibmedien.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3302963 1983-01-29
DE19833302963 DE3302963A1 (de) 1983-01-29 1983-01-29 Schreibgeraet fuer fluessige schreibmedien

Publications (3)

Publication Number Publication Date
EP0114947A2 EP0114947A2 (fr) 1984-08-08
EP0114947A3 EP0114947A3 (en) 1984-08-22
EP0114947B1 true EP0114947B1 (fr) 1986-09-17

Family

ID=6189512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110941A Expired EP0114947B1 (fr) 1983-01-29 1983-11-03 Instrument d'écriture à encre liquide

Country Status (5)

Country Link
US (1) US4583875A (fr)
EP (1) EP0114947B1 (fr)
JP (1) JPS59143696A (fr)
AT (1) ATE22256T1 (fr)
DE (2) DE3302963A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3614230C1 (de) * 1986-04-26 1987-08-27 Pelikan Ag Verfahren zur Herstellung von Schreibdochten und Vorrichtung zur Durchfuehrung des Verfahrens
DE3821195A1 (de) * 1988-06-23 1989-12-28 Schwan Stabilo Schwanhaeusser Schutzkappe fuer ein schreib-, zeichen- bzw. auftragsgeraet
EP0496304A1 (fr) * 1991-01-22 1992-07-29 Binney & Smith Inc. Dispositifs de distribution de liquide ayant des supports de pointe d'écriture à barbe
DE4137838C2 (de) * 1991-11-16 1994-04-14 Pelikan Ag Schreibgerät
US5727893A (en) * 1995-04-21 1998-03-17 Binney & Smith Inc. Fluid dispensing NIB, and delivery system
US5826515A (en) * 1997-01-29 1998-10-27 Binney & Smith Inc. Stamping device
JP2005042838A (ja) * 2003-07-23 2005-02-17 Ntn Corp 流体軸受装置
JP6549415B2 (ja) * 2015-05-25 2019-07-24 三菱鉛筆株式会社 筆記具

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1545656A (en) * 1925-07-14 Screw nozzle
DE1317312U (fr)
GB1017342A (en) * 1961-06-23 1966-01-19 Aurora Societa Per Azioni Improvements in or relating to synthetic-material cartridges for liquids
FR1531571A (fr) * 1961-06-23 1968-07-05 Aurora Societa Per Azioni Perfectionnements aux cartouches en matière synthétique pour liquides, en particulier pour l'encre
US3234918A (en) * 1964-01-06 1966-02-15 L & C Hardtmuth Inc Writing implement with cartridge
US3345674A (en) * 1964-10-02 1967-10-10 Sanford Res Company Marking device
GB1133979A (en) * 1966-06-29 1968-11-20 Magic Marker Corp Improved pen desk set
DE1977740U (de) * 1967-11-15 1968-01-25 Faber Castell A W Fuellschreiber mit einem docht als schrebelement.
ES158154Y (es) * 1970-01-10 1971-03-16 Frola Cuerpo-deposito, perfeccionado, para instrumentos de escri-tura.
GB1317312A (en) * 1970-12-02 1973-05-16 Clading Boel J P Nib cores for fibre tipped writing instruments
US3687561A (en) * 1971-04-23 1972-08-29 Phillip Phillips Writing implement
JPS5515001B2 (fr) * 1973-01-22 1980-04-21
DE2319942B2 (de) * 1973-04-19 1976-01-22 Fa. A.W. Faber-Castell, 8504 Stein Schreibgeraet
UST926011I4 (en) * 1974-02-11 1974-09-03 Defensive publication
DE2425500C3 (de) * 1974-05-27 1983-12-01 Pelikan Ag, 3000 Hannover Verfahren zur Herstellung von Schreibdochten
DE2637685B2 (de) * 1976-08-20 1979-05-31 Guenther Wagner Pelikan-Werke Gmbh, 3000 Hannover Unlösbare Steckverbindung an Schreibgeräten
DE2647748C3 (de) * 1976-10-22 1980-06-19 Fa. J.S. Staedtler, 8500 Nuernberg Schreibgerat mit Schreibspitzenaufnahme
DE7720519U1 (de) * 1977-06-30 1978-12-21 Rigoni, Walter, 7742 St Georgen Fasermaler
JPS5621592Y2 (fr) * 1978-06-02 1981-05-21
JPS5923028Y2 (ja) * 1981-04-28 1984-07-09 小川化工株式会社 筆記具用軸

Also Published As

Publication number Publication date
EP0114947A3 (en) 1984-08-22
EP0114947A2 (fr) 1984-08-08
DE3366327D1 (en) 1986-10-23
DE3302963C2 (fr) 1987-07-16
JPS59143696A (ja) 1984-08-17
ATE22256T1 (de) 1986-10-15
DE3302963A1 (de) 1984-08-02
JPS6139199B2 (fr) 1986-09-02
US4583875A (en) 1986-04-22

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