EP0543183A1 - Instrument pour écrire - Google Patents

Instrument pour écrire Download PDF

Info

Publication number
EP0543183A1
EP0543183A1 EP92118307A EP92118307A EP0543183A1 EP 0543183 A1 EP0543183 A1 EP 0543183A1 EP 92118307 A EP92118307 A EP 92118307A EP 92118307 A EP92118307 A EP 92118307A EP 0543183 A1 EP0543183 A1 EP 0543183A1
Authority
EP
European Patent Office
Prior art keywords
writing
writing tip
longitudinal ribs
annular groove
holder
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
EP92118307A
Other languages
German (de)
English (en)
Other versions
EP0543183B1 (fr
Inventor
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
Publication of EP0543183A1 publication Critical patent/EP0543183A1/fr
Application granted granted Critical
Publication of EP0543183B1 publication Critical patent/EP0543183B1/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
    • 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

Definitions

  • the invention relates to a writing instrument with a symmetrically formed writing tip consisting of a rigid, cylindrical plastic body with longitudinal capillaries, which has conically tapered ends and is inserted into the front opening of the writing tip holder, the rear end of the writing tip being connected to the supply of writing fluid.
  • a writing instrument of the type specified is known from DE-PS 24 56 905.
  • the writing tip of this known writing device has a smooth outer surface and is clamped in the writing tip holder by radially pressing in the holder. It is therefore not able to absorb higher impressions and can impress itself when writing.
  • the object of the invention is to provide a writing instrument of the type mentioned, the writing tip can absorb high indentation forces, requires little manufacturing effort and is easy to assemble.
  • the writing tip has an axially central annular groove and that in the front opening of the writing tip holder form-fitting longitudinal ribs are provided, which only during assembly, but not due to the pressing forces occurring during writing at the writing tip are deformable.
  • the length of the annular groove can be relatively short in comparison to the length of the writing tip and therefore requires only a small amount of grinding on the plastic body during manufacture. Due to the axially central arrangement of the annular groove, the symmetrical design of the writing tip is retained, so that the writing tip can be mounted with both ends in the front opening of the writing tip holder.
  • the writing tip is therefore very well suited for processing with an automatic assembly machine, since it does not have to be aligned in a specific direction before assembly and therefore a separate mechanical device for alignment is not required. Furthermore, time-consuming and costly disruptions during assembly are avoided, which can occur with non-symmetrical writing tips.
  • the writing tip is held firmly and securely in the writing tip holder without an axial change in position of the writing tip occurring due to the pressure exerted during writing.
  • the longitudinal ribs When the nib is inserted into the front opening of the nib holder, the longitudinal ribs are plastically deformed in the longitudinal direction by means of a pressure generated by the automatic assembly machine until a shoulder is formed which engages in the annular groove and ensures an immovable seating of the nib.
  • the deformation of the longitudinal ribs and thus the position of the heel can be different, so that in any case indentation of the writing tip is reliably prevented during writing.
  • the annular groove consists of two symmetrically arranged groove sections of the same dimension, which, however, through an axially central annular collar, which is essentially unprocessed, towards the groove sections is chamfered, are separated from each other.
  • This configuration enables the overall length of the surface to be machined to be relatively small and the machining effort for piercing the ring grooves to remain low despite the longer length of the writing tip.
  • the invention provides that the lateral boundaries of the annular groove merge sharply into the lateral surface of the writing tip.
  • the insertion of the writing tip can be done according to the invention can also be facilitated in that the longitudinal ribs are beveled towards the outer end of the opening of the writing tip holder. This, in conjunction with the conical end of the writing tip, facilitates the elastic widening of the area formed by the longitudinal ribs.
  • the invention further provides that the longitudinal ribs are at the inner end of the front opening of the nib holder and only extend over part of the length of the opening.
  • This arrangement of the longitudinal ribs has the advantage that the length of the annular groove is as small as possible and the processing effort for the production of the annular groove can accordingly be small.
  • guide ribs are arranged between the longitudinal ribs, which have the same or a lower height and are longer than the longitudinal ribs. The space between the guide ribs and the longitudinal ribs serves as a ventilation channel.
  • three guide ribs 9 are arranged at a distance of 120 ° from one another, which extend over the entire length of the opening 3.
  • the guide ribs 9 extend so far into the interior of the opening 3 that they form a friction guide for the writing tip 4. In this way, a firm seat of the writing tip 4 is created, which, however, cannot adequately support the pressing forces occurring during writing.
  • Three longitudinal ribs 10 are formed in the rear area of the opening 3, likewise at a distance of 120 ° and between the guide ribs 9.
  • the longitudinal ribs 10 are shorter than the guide ribs 9, but have a greater height and thus protrude further into the interior of the opening 3.
  • the outside End of the opening 3 facing ends of the longitudinal ribs 10 are chamfered.
  • the area of the longitudinal ribs 10 is elastically deformed due to the conical end 6 of the writing tip 4 and the pressure generated by the assembly tool, so that the writing tip 4 can slide past the longitudinal ribs 10 despite its larger diameter .
  • the longitudinal ribs 10 return to their original position due to the smaller diameter of the writing tip 4 and thus the lack of pressure, and are subsequently replaced by the subsequent section of the writing tip due to the larger diameter and the sharp-edged design of the side wall 11 of the annular groove 8 4 plastically deformed.
  • the writing tip 4 is pressed into the opening 3 until its end 5 protrudes from the shaft 1 at the desired distance.
  • the rear side wall 11 of the annular groove 8 deforms the front part of the longitudinal ribs 10, the rear region of the longitudinal ribs 10 forming a shoulder 12 which engages positively in the annular groove 8, so that the writing tip 4 receives support for absorbing the pressing forces.
  • paragraph 12 is of different strengths, but in any case so large that an axial positional displacement of the writing tip 4 cannot occur during writing.
  • FIG. 2 also shows the front part of a writing instrument, but with a two-part design of a shaft 13 and a writing tip holder 14.
  • the writing tip holder 14 contains the opening 3, which is designed in the same way as in the previous exemplary embodiment with guide ribs 9 and longitudinal ribs 10.
  • a writing tip 15 is inserted, which is longer is to bridge the greater distance to the writing fluid storage space 7.
  • the writing tip 15 has an annular groove 18 divided into two groove sections 16, 17. Between the groove sections 16, 17 there is an untreated annular collar 19 in its central region and conically ground at its ends.
  • the assembly of the writing tip 15 is carried out in the same manner as above, but only the groove section 16 adjacent to the outer end 5 of the writing tip 15 with its sharp-edged side wall 20 plastically deforms the longitudinal ribs 10 and thereby forms the shoulder 12, which positively engages in the groove section 16 intervenes. Due to its conical ends, the annular collar 19 is made possible to slide away over the guide ribs 9 and the longitudinal ribs 10.

Landscapes

  • Pens And Brushes (AREA)
EP92118307A 1991-11-16 1992-10-27 Instrument pour écrire Expired - Lifetime EP0543183B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4137838 1991-11-16
DE4137838A DE4137838C2 (de) 1991-11-16 1991-11-16 Schreibgerät

Publications (2)

Publication Number Publication Date
EP0543183A1 true EP0543183A1 (fr) 1993-05-26
EP0543183B1 EP0543183B1 (fr) 1995-06-28

Family

ID=6445012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92118307A Expired - Lifetime EP0543183B1 (fr) 1991-11-16 1992-10-27 Instrument pour écrire

Country Status (4)

Country Link
US (1) US5286127A (fr)
EP (1) EP0543183B1 (fr)
JP (1) JP2533044B2 (fr)
DE (2) DE4137838C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3031613B1 (fr) * 2014-12-12 2020-09-23 Fluidwriting Limited Ensemble d'alimentation à pointe feutre et instrument d'écriture alimenté à partir d'une cartouche jetable standard d'encre aqueuse

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2143518C (fr) * 1994-03-16 1999-03-09 Kazuaki Matsumoto Disposistif pour ecrire
DE29513856U1 (de) * 1995-08-29 1995-10-26 MAHA The Nail Co M. Odenthal GmbH, 50667 Köln Ausgabeeinrichtung
US5890830A (en) * 1997-09-04 1999-04-06 Pentech International Inc. Universal marking instrument apparatus
MXPA01013305A (es) * 1999-06-01 2002-07-02 Liu Boa Shen Mejoras en estructura de pluma acodada.
EP1666272B1 (fr) * 2003-09-05 2010-10-20 Mitsubishi Pencil Co., Ltd. Applicateur
EP1591274B1 (fr) * 2004-04-28 2009-06-24 Schwan-STABILO Schwanhäusser GmbH & Co. KG Dispositif de fixation pour une pointe
US20080145136A1 (en) * 2006-12-15 2008-06-19 George Korper Reversible nib

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2319942A1 (de) * 1973-04-19 1974-10-31 Faber Castell A W Befestigung eines schreibelementes
US3969027A (en) * 1975-04-03 1976-07-13 The Gillette Company Writing instrument
US4583875A (en) * 1983-01-29 1986-04-22 Pelikan Aktiengesellschaft Method of nib attachment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE649871C (de) * 1930-05-01 1937-09-04 Oxyammon Akt Ges Aus Platin oder aehnlichen Metallen bestehender Katalysator fuer die Oxydation von Ammoniak mit Sauerstoff oder stark sauerstoffhaltigen Gasen
US3003181A (en) * 1959-07-29 1961-10-10 Speedry Chemical Products Inc Marking device with snap-on head assembly
US3141187A (en) * 1962-09-05 1964-07-21 Esterbrook Pen Co Marking instrument
US3345674A (en) * 1964-10-02 1967-10-10 Sanford Res Company Marking device
JPS5549000B2 (fr) * 1973-12-06 1980-12-09
JPS5414019Y2 (fr) * 1975-05-15 1979-06-12
JPS6140549Y2 (fr) * 1981-06-17 1986-11-19
ZA853631B (en) * 1984-05-15 1985-12-24 Nicholas Kiwi Pacific Pty Ltd Liquid applicator
DE3504462A1 (de) * 1984-09-12 1986-08-14 Rotring-Werke Riepe Kg, 2000 Hamburg Faserschreiber
JPH0545421Y2 (fr) * 1987-11-27 1993-11-19

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2319942A1 (de) * 1973-04-19 1974-10-31 Faber Castell A W Befestigung eines schreibelementes
US3969027A (en) * 1975-04-03 1976-07-13 The Gillette Company Writing instrument
US4583875A (en) * 1983-01-29 1986-04-22 Pelikan Aktiengesellschaft Method of nib attachment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3031613B1 (fr) * 2014-12-12 2020-09-23 Fluidwriting Limited Ensemble d'alimentation à pointe feutre et instrument d'écriture alimenté à partir d'une cartouche jetable standard d'encre aqueuse

Also Published As

Publication number Publication date
JPH05221194A (ja) 1993-08-31
DE4137838C2 (de) 1994-04-14
EP0543183B1 (fr) 1995-06-28
DE59202716D1 (de) 1995-08-03
US5286127A (en) 1994-02-15
DE4137838A1 (de) 1993-05-27
JP2533044B2 (ja) 1996-09-11

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