EP0284851A1 - Auswechselbare Schreibmine - Google Patents

Auswechselbare Schreibmine Download PDF

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Publication number
EP0284851A1
EP0284851A1 EP88103752A EP88103752A EP0284851A1 EP 0284851 A1 EP0284851 A1 EP 0284851A1 EP 88103752 A EP88103752 A EP 88103752A EP 88103752 A EP88103752 A EP 88103752A EP 0284851 A1 EP0284851 A1 EP 0284851A1
Authority
EP
European Patent Office
Prior art keywords
writing
thread
tip
lead
refill
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.)
Withdrawn
Application number
EP88103752A
Other languages
German (de)
English (en)
French (fr)
Inventor
Rüdiger Dipl.-Chem. Weiss
Dietmar Podszuweit
Heino Strehle
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.)
Montblanc Simplo GmbH
Original Assignee
Montblanc Simplo 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 Montblanc Simplo GmbH filed Critical Montblanc Simplo GmbH
Publication of EP0284851A1 publication Critical patent/EP0284851A1/de
Withdrawn legal-status Critical Current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 a writing lead for liquid or pasty writing materials for use in writing instruments, in particular in hand-writing instruments, which comprises an essentially rod-shaped writing medium container with a writing tip, the writing lead being releasably connectable to the writing instrument via a thread formed on it in such a way that the writing lead can be screwed into the writing instrument from behind.
  • a writing lead of this type is known (Lincoln type, AP Cross Company), in which the writing lead has a thread which is arranged at the rear end, ie directed towards the writing refill opening.
  • This known writing lead is screwed into a suitably prepared writing instrument from behind, ie from the end of the writing instrument which is opposite the end of the writing instrument at which the writing tip protrudes when writing, and can if the writing lead is replaced by another writing lead by screwing in and unscrewing.
  • the provision of a thread on the writing lead for the releasable fastening of the writing lead in a writing instrument is a simple but very effective fastening means.
  • a writing lead with a thread provided on it can only be used in a writing instrument that has a corresponding thread, i. H. Refill and writing instrument must be clearly coordinated with each other, in contrast to clamp connections, with which refills of different thicknesses and also different refill manufacturers can be used in a writing instrument. Compared to threaded fasteners, these are disproportionately expensive to manufacture.
  • the refill In the known, threaded, refill, the refill consists of a writing medium container of relatively small cross section, i. that is, it is a writing lead with commercial dimensions, which is provided at its fill opening with a closure on which a thread is formed. Because of this known construction, the length of the writing lead, i. H. the distance from the thread to the writing tip must be precisely matched to the length of the writing instrument, since it must be ensured that the writing tip still protrudes from the writing instrument housing in a predetermined manner when the thread is screwed in.
  • writing leads with writing medium containers of different lengths and different sizes cannot be used with the writing instrument in question, since the length of the writing lead is always determined by the predetermined fixed distance between the writing tip and the thread of the writing lead.
  • the object is achieved according to the invention in that the thread is provided in the region of the end of the writing lead facing the writing tip.
  • the advantage of this writing lead is essentially that the shape of the writing medium container of the writing lead, i. H. whose length, cross-sectional size and cross-sectional shape can be selected completely independently of one another and need not be matched directly to the writing instrument in which this writing lead can be used.
  • a refill can be inserted into a writing device that is normally suitable for holding large-volume refills (so-called jumbo refills), even if the refill refill that can currently be obtained is a refill with a small cross-sectional diameter. It is also possible to insert a writing lead into a writing instrument in this way, which usually has a lot longer leads, but these longer writing leads are currently not available.
  • the advantage of the design of the writing lead according to the invention also lies in the fact that the distance between the writing tip of the writing lead and the thread is limited directly to the tip area of the writing lead, the cross-section of the writing lead tip area in all writing leads being generally reduced to a generally customary cross-sectional size, almost everyone commercial writing leads is the same within specified tolerance values.
  • the provision of the thread in the region of the end of the writing lead facing the writing tip is not a volume restriction with respect to the writing medium container volume to be provided, in contrast to the known writing lead described above.
  • the thread is provided on the end of the writing medium container facing the writing tip, as a result of which separate measures for attaching the thread to the writing lead are dispensed with and a very cost-effective embodiment is thus created.
  • the thread is provided on a spacer body arranged between the writing medium container and the writing tip.
  • This location of attaching the thread is advantageous if, for example, austenitic steels are used to manufacture the writing medium container and the writing tip, which do not allow a cross-sectional taper directly towards the writing tip, since the austenitic steel cannot be deformed without complex treatment methods.
  • a spacer is used in the area of the cross-section reduction towards the writing tip. This spacer is advantageously suitable for attaching the thread.
  • the thread of the writing lead is preferably formed on a section of the spacer body which has a diameter of less than / equal to the largest cross-sectional dimension of the writing medium container. This type of execution of the writing lead allows any size Cross-section of writing medium, since the thread is formed in a section on the spacer which is always the same even with different cross-sectional diameters of the writing medium container.
  • the spacer body on which the thread is formed is preferably made of plastic.
  • the spacer body can also consist of a metallic material.
  • a screw cap with an appropriate thread that envelops the writing tip can be screwed onto the thread of the writing refill.
  • This protective cap which can either be made of plastic or a metallic material, can also be used as a protective cap for a writing lead that was unscrewed from a writing instrument because, for example, a writing lead with a different color was inserted there, and which was then used for the interim storage is closed.
  • the writing lead 10 essentially consists of a cylindrical writing medium container 11, which as a rule has a circular cross section, in which liquid or pasty writing medium is received in a known manner.
  • the writing medium container 11 has an end facing the writing tip 12 and an end 17 facing the filling opening (not shown separately).
  • the filling opening is closed in a known manner, which is likewise not shown separately here.
  • the end 16 of the writing medium container 11 facing the writing tip 12 is provided, according to the exemplary embodiments shown in the figures, with a spacer body 18, which projects into the writing medium container 11 with a spacer body section 20 and is generally fitted there in a press fit.
  • the spacer body section 19 protruding from the writing medium container 11 has a thread 13 in the form of an external thread, which can be screwed into a corresponding thread 15 of a writing instrument 14, which is shown in FIG. 2 in the form of a front part of the writing instrument.
  • the thread 15 in the writing instrument 14 is accordingly an internal thread.
  • the exemplary embodiment of the writing lead shown in the figures shows the attachment of the thread 13 directly on the spacer body 18, but it is also conceivable that Thread 13 at the appropriate distance from the writing tip can also be provided directly on a writing medium container 11 with a corresponding diameter.
  • a cap 21, which has an internal thread corresponding to the thread 13, can also be provided and placed and screwed onto the thread 13 of the writing lead 10 in accordance with the dash-dotted line.
  • This cap 21 can be used for transport, storage but also to protect the user from contamination by the writing medium, for example if the writing lead 10 is meanwhile unscrewed from the writing instrument 14 and is put back there at a later time.
  • the writing lead 10, the writing tip 12, which is generally also cylindrical and has a circular cross section, and also the spacer body 18 can in principle be made of the same materials, for example metallic materials. However, it is also conceivable to form at least the spacer body 18 from a different material, for example plastic, than the material of the writing lead 10 and that of the writing medium container 11.
  • the cap 21 can also consist of metallic material or plastic, for example.
  • the length of the writing medium container 11 is freely selectable within wide limits in the writing refill 10 proposed here, that is, it is only a matter of maintaining the distance between the thread 13 and the writing end 22 of the writing tip, which is to achieve a predetermined amount from the Outstanding amount of the writing instrument must be observed.

Landscapes

  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
EP88103752A 1987-03-31 1988-03-10 Auswechselbare Schreibmine Withdrawn EP0284851A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3710737 1987-03-31
DE19873710737 DE3710737A1 (de) 1987-03-31 1987-03-31 Auswechselbare schreibmine

Publications (1)

Publication Number Publication Date
EP0284851A1 true EP0284851A1 (de) 1988-10-05

Family

ID=6324498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103752A Withdrawn EP0284851A1 (de) 1987-03-31 1988-03-10 Auswechselbare Schreibmine

Country Status (3)

Country Link
EP (1) EP0284851A1 (enrdf_load_stackoverflow)
JP (1) JPH0645279B2 (enrdf_load_stackoverflow)
DE (1) DE3710737A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6764240B2 (en) 2002-07-17 2004-07-20 Bic Corporation Universal refill mechanism and method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR926055A (fr) * 1945-05-01 1947-09-22 Instrument pour écrire avec réservoir d'encre à paroi flexible
US2428960A (en) * 1945-07-20 1947-10-14 Eversharp Inc Writing instrument
FR962127A (enrdf_load_stackoverflow) * 1946-05-30 1950-06-02
FR976216A (fr) * 1948-10-04 1951-03-15 Cartouche de grande capacité pour stylo à bille
GB695861A (en) * 1948-07-15 1953-08-19 Compania Uruguaya De Fomento S Improvements in reservoirs for writing instruments of the ball tip type
FR1041438A (fr) * 1950-08-30 1953-10-23 Biro Patente A G Perfectionnements aux instruments à écrire à réservoir
DE2043469A1 (de) * 1970-09-02 1972-03-23 Rohrbach, Bernd, 6000 Frankfurt Kugel bzw Füzschreibermme
DE2236361A1 (de) * 1972-07-25 1974-02-14 C Josef Lamy Kugelschreiberminen mit im vorderen bereich angeordneten schalt- bzw. stuetznocken

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1004717A (fr) * 1949-12-28 1952-04-02 Perfectionnements aux réservoirs d'encre pour stylographes à bille
FR1013543A (fr) * 1950-01-03 1952-07-30 Perfectionnement aux réservoirs de stylographes à billes
FR1013545A (fr) * 1950-01-06 1952-07-30 Réservoir à encre pour stylographes à bille
FR1018879A (fr) * 1950-04-07 1953-01-14 Réservoir pour instrument d'écriture, son procédé de fabrication et instrument d'écriture en comportant application
FR1025399A (fr) * 1950-10-03 1953-04-14 Cartouche pour stylographe à bille
DE1877397U (de) * 1963-06-05 1963-08-08 Hebborn & Co H Mine fuer kugelschreiber.
DE1978991U (de) * 1967-09-07 1968-02-15 Ver Deutsche Metallwerke Ag Zweiteilige patrone fuer filzschreiber.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR926055A (fr) * 1945-05-01 1947-09-22 Instrument pour écrire avec réservoir d'encre à paroi flexible
US2428960A (en) * 1945-07-20 1947-10-14 Eversharp Inc Writing instrument
FR962127A (enrdf_load_stackoverflow) * 1946-05-30 1950-06-02
GB695861A (en) * 1948-07-15 1953-08-19 Compania Uruguaya De Fomento S Improvements in reservoirs for writing instruments of the ball tip type
FR976216A (fr) * 1948-10-04 1951-03-15 Cartouche de grande capacité pour stylo à bille
FR1041438A (fr) * 1950-08-30 1953-10-23 Biro Patente A G Perfectionnements aux instruments à écrire à réservoir
DE2043469A1 (de) * 1970-09-02 1972-03-23 Rohrbach, Bernd, 6000 Frankfurt Kugel bzw Füzschreibermme
DE2236361A1 (de) * 1972-07-25 1974-02-14 C Josef Lamy Kugelschreiberminen mit im vorderen bereich angeordneten schalt- bzw. stuetznocken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6764240B2 (en) 2002-07-17 2004-07-20 Bic Corporation Universal refill mechanism and method

Also Published As

Publication number Publication date
DE3710737A1 (de) 1988-10-13
JPS6451996A (en) 1989-02-28
DE3710737C2 (enrdf_load_stackoverflow) 1990-03-29
JPH0645279B2 (ja) 1994-06-15

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