EP0209342B1 - Instrument pour écrire - Google Patents

Instrument pour écrire Download PDF

Info

Publication number
EP0209342B1
EP0209342B1 EP19860305394 EP86305394A EP0209342B1 EP 0209342 B1 EP0209342 B1 EP 0209342B1 EP 19860305394 EP19860305394 EP 19860305394 EP 86305394 A EP86305394 A EP 86305394A EP 0209342 B1 EP0209342 B1 EP 0209342B1
Authority
EP
European Patent Office
Prior art keywords
ink
feeding core
ink feeding
writing
pen nib
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
EP19860305394
Other languages
German (de)
English (en)
Other versions
EP0209342A1 (fr
Inventor
Masaaki Fukami
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
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=14509206&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0209342(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0209342A1 publication Critical patent/EP0209342A1/fr
Application granted granted Critical
Publication of EP0209342B1 publication Critical patent/EP0209342B1/fr
Expired legal-status Critical Current

Links

Images

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K1/00—Nibs; Writing-points
    • B43K1/02—Split nibs

Definitions

  • This invention relates to writing implements and more specifically to a writing implement which has an increased flow of ink from its ink feeding core to its beak-like pen nib point, and in which ink oozes out to the nib point suitably to make possible instantaneous starting of writing even after the implement has been held upright with the nib pointed upward for a long time.
  • FR-E-3339, US-A-2001726, and EP-A-0065430 disclose relevant background art.
  • EP-A-0065430 discloses a fountain pen comprising an ink reservoir and a nib supported by an ink feeding core or block.
  • the feeding core or block is provided with a feed channel or groove for supplying ink from the reservoir to a writing tip of the nib.
  • the ink feeding core or block terminates well short of the writing tip. Therefore, ink is not constantly supplied to the writing tip, particularly when the pen has been held upright for some time, and the pen will not always write immediately it is used.
  • US-A-2001726 discloses a pen nib made from a stamped blank.
  • the nib comprises a writing tip made up of two tabs bent from the blank and having a small wedge-shaped ink reservoir between the tabs.
  • the nib is designed for common desk pen holders and inexpensive fountain pens, and in the latter case will suffer from the same drawback as the nib disclosed in EP-A-0065430.
  • FR-E-3339 discloses a pen having an ink reservoir and a wick for supplying ink from the reservoir to a pen nib. This is unsatisfactory because reliable measures are not provided to feed the ink from the wick to the writing tip of the pen nib and to securely hold the wick on the pen nib.
  • This prior writing implement has a beak-like pen nib covering an ink feeding core holder which has a longitudinal groove into which the forward end of an ink feeding core connected at the rear end to an ink absorbing/ storing body is received, whereby the ink in the ink absorbing/storing body is fed through the ink feeding core to the beak-like pen nib.
  • This prior writing implement which has the ink absorbing body in its cylindrical barrel similarly as a felt pen, is immediately usable as it is bought, and is inexpensive and disposable, but it has an appearance resembling a fountain pen and feels massive when held for writing therewith.
  • the groove of the ink feeding core holder for receiving the ink feeding core has tiny concavities formed in the forward end surface of the groove so that the tiny concavities will cause capillary action.
  • the capillary action in the tiny concavities induces the ink to seep from the ink feeding core to the pen nib.
  • An object of this invention is to provide a writing implement which overcomes the drawbacks of the prior implements described above, and which has an increased ink flow from the ink feeding core to the pen nib and keeps the writing point of the pen nib fed with ink without "ink drop", so that it is always ready to use and writes smoothly without interruption.
  • this invention provides a writing implement comprising an elongated barrel housing an ink storing means of ink absorbing type; hollow pen holder means provided on the front end of the barrel; an ink feeding holder inserted into the pen holder means and having a groove formed longitudinally in the outer surface of the ink feeding core holder; an ink feeding core fitted in the groove and inserted at the rear end thereof into the ink storing means, the front end of the ink feeding core being formed into a beak-like shape and protruding forward from and beyond the front end of the ink feeding core holder; and a beak-like pen nib so disposed as to cover the ink feeding core holder and having a writing point made up of a pair of bulging parts formed on both sides of the forward end of the pen nib integrally therewith, said bulging parts extending substantially perpendicularly to the general surface of the pen nib and being in contact with and in opposed relation to each other, the front end of the ink feeding core being in
  • the ink to be fed to the writing point of the pen nib is fed along a slit formed in the pen nib and along the inner surfaces of the bulging parts of the writing point.
  • This arrangement produces an advantageous effect in that the ink is fed to the pen nib in a greater quantity than in the prior writing implement, consequently without the inconvenience of faintly written letters.
  • the writing point is in constant contact with the ink feeding core. This arrangement affords the advantageous effect of elimination of "ink drop", and thus the writing implement writes smoothly and instantaneously even after it has been held upright.
  • the example of the writing implement in the form shown in FIG. 4 comprises a body 1 and a cap 2.
  • the body 1 comprises an elongated barrel 3 and a pen nib holder 4, both of which are made of plastics, and a metal beaklike pen nib 5 of arcuate cross section.
  • the barrel 3 houses an ink absorbing/storing body 3a which contains ink and feeds the ink to the pen nib 5.
  • the pen nib holder 4 is inserted at 4a into the forward end of the barrel 3.
  • a bore 6 of semicircular cross section is formed in the pen nib holder 4.
  • An ink feeding core holder 7 is inserted into the bore 6.
  • the ink feeding core holder 7 has a beaklike forward end, and semicircular cross section which can fit in the bore 6.
  • a groove 8 is formed longitudinally in the outer surface of the ink feeding core holder 7. The depth of the groove 8 is reduced toward the forward end.
  • An ink feeding core 9 is inserted into the groove 8.
  • the ink feeding core 9 has the forward end formed into a thin beakline shape.
  • the forward end 9a of the ink feeding core 9 protrudes slightly forward from the front end of the groove 8.
  • the ink feeding core 9 is made of a bundle of numerous filaments of fiber, and the capillary action of the narrow passages between these filaments is utilized to feed the ink of the ink absorbing/storing body 3a to the pen nib 5.
  • An air passage 10 is formed longitudinally in the bottom surface of the ink feeding core holder 7.
  • a convex recessed surface 11 is formed in the outer upper peripheral surface of the ink feeding core holder 7. As shown in FIG. 3, the pen nib 5 is fitted in this recessed surface 11 in such a manner as to cover the ink feeding core 9 and is flush with the outer peripheral surface of the ink feeding core holder 7.
  • the pen nib 5 is made of metal and is beak-shaped.
  • a writing point 5a is formed at the front end of the pen nib 5.
  • a slit 5b is formed to extend from the writing point 5a of the pen nib 5, to a small hole 5c formed in the nib 5 for stopping the slit 5b from extending any farther rearward.
  • the pen nib 5 is fabricated by pressing a punched stainless'steel sheet blank 5' shown in FIG. 4.
  • the sheet blank 5' has a pair of bulging parts 5a', 5a' in the form of a small plate formed integrally at the forward end thereof. These parts 5a', 5a' are to be bent in a direction perpendicular to the general surface of the blank 5' to form the writing point 5a.
  • the slit 5b and the small hole 5c at the rear end of the slit 5b are provided in the forward end of the sheet blank 5'.
  • the sheet blank 5' is pressed to conform closely to the recessed convex surface 11 of the inkfeeding core holder 7.
  • the parts 5a', 5a' are bent toward each other. In this way the beaklike pen nib 5 with the writing point 5a formed integrally with the former is fabricated as shown in FIG. 6.
  • a small space is left between them at the rear end of the writing point 5a.
  • the writing point 5a of the pen nib 5 thus fabricated has a V-shape in horizontal section as shown in FIG. 2, in which the bulging parts 5a', 5a' are in face-to-face contact with each other at the front portion of the writing point 5a and are slightly separated from each other at the rear end thereof.
  • a small space is defined between the front end of the ink feeding core 9 and the inner surface of the writing point 5a.
  • the ink absorbed in the ink absorbing/ storing body 3a is conducted to the front end 9a of the ink feeding core 9 by the capillary action of the ink feeding core 9.
  • the front end 9a is inserted in the opening between the projecting parts 5a' of the writing point 5a in contact with the inner surface of the writing point, and thus the ink conducted to the front end 9a of the ink feeding core 9 is led to the front end of the writing point 5a through the slit 5b formed in the pen nib 5.
  • Part of the ink thus conducted to front end 9a is led to the front tip of the writing point 5a along the inner surface of the writing point.
  • the space defined between the inner surface of the writing point 5a and the front end 9a of the ink feeding core 9 serves as an ink reservoir, where the ink to be fed from the ink feeding core to the pen nib 5 is stored.
  • the ink feeding core 9 When the ink is consumed for writing, the same quantity of the ink is fed from the ink feeding core 9 to the writing point 5a.
  • the projecting parts 5a', 5a' of the writing point 5a are bent with a small space defined between these parts at the rear end of the writing point 5a, and in this space is inserted the front end 9a of the ink feeding core 9.
  • the writing implement according to this invention is not limited to this embodiment.
  • the projecting parts 5a' of the writing point 5a may be bent substantially without a space between these parts at the rear end of the writing point 5a, and the front end 9a of the ink feeding core 9 may be in contact with this substantially closed rear end of the writing point 5a. In the latter case, the same effect as in the embodiment of the invention described above is produced.

Landscapes

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

Claims (3)

1. Instrument d'écriture comprenant un cylindre allongé (3) logeant un dispositif (3a) d'emmagasinage d'encre du type à absorption d'encre, un support creux (4) de plume placé à l'extrémité avant du cylindre (3), un support (7) d'alimentation en encre pénétrant dans le support creux (4) et ayant une gorge (8) formée longitudinalement à la surface externe du support (7) d'une âme d'alimentation en encre, une âme (9) d'alimentation en encre logée dans la gorge (8) et introduite, à son extrémité arrière, dans le dispositif d'emmagasinage d'encre (3a), l'extrémité avant (9a) de l'âme (9) ayant une forme de bec et dépassant en avant et au-delà de l'extrémité avant du support (7) de l'âme, et une plume (5) en forme de bec disposée afin qu'elle recouvre le support (7) d'âme d'alimentation en encre et ayant une pointe d'écriture (5a) formée de deux parties en saillie (5a) réalisées des deux côtés de l'extrémité avant de la plume (5) et solidaires de celle-ci, les parties en saillie (5a) étant dirigées en direction sensiblement perpendiculaire à la surface générale de la plume et étant en contact mutuel et l'une en face de l'autre, l'extrémité avant (9a) de l'âme (9) d'alimentation en encre étant au contact de l'arrière des parties en saillie (5a), et les parties en saillie (5a) étant légèrement séparées l'une de l'autre à l'arrière de la pointe d'écriture (5a) de manière qu'un petit espace en forme de V soit formé entre les parties en saillie (5a), et l'extrémité avant (9a) de l'âme (9) est introduite dans l'espace en V afin qu'elle soit retenue par la pointe d'écriture sans pouvoir bouger.
2. Instrument d'écriture selon la revendication 1, dans lequel les parties en saillie (5a) sont formées par pliage de la plume (5).
3. Instrument d'écriture selon la revendication 2, dans lequel les parties en saillie (5a) sont chacune sous forme d'une petite plaque.
EP19860305394 1985-07-17 1986-07-14 Instrument pour écrire Expired EP0209342B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP109397/85U 1985-07-17
JP10939785U JPH0357511Y2 (fr) 1985-07-17 1985-07-17

Publications (2)

Publication Number Publication Date
EP0209342A1 EP0209342A1 (fr) 1987-01-21
EP0209342B1 true EP0209342B1 (fr) 1990-05-02

Family

ID=14509206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860305394 Expired EP0209342B1 (fr) 1985-07-17 1986-07-14 Instrument pour écrire

Country Status (3)

Country Link
EP (1) EP0209342B1 (fr)
JP (1) JPH0357511Y2 (fr)
DE (1) DE3670805D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5290117A (en) * 1987-06-26 1994-03-01 Pilot Ink Co., Ltd. Penpoint assembly and writing instrument employing the same
GB2207396B (en) * 1987-06-26 1992-01-29 Pilot Ink Co Ltd Writing instrument.
JPH0625353Y2 (ja) * 1987-08-06 1994-07-06 パイロットインキ株式会社 筆記具
US5015113A (en) * 1987-12-07 1991-05-14 Shizuo Yamanaka Multiangular pen
EP1112862B1 (fr) * 1999-12-29 2004-04-21 Tachikawa Kabushiki Kaisha Instrument d'écriture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3339E (fr) * 1903-08-17 1904-10-21 Arthur Alphonse Alexandre Merr Porte-plume à réservoir
US1664501A (en) * 1926-06-10 1928-04-03 Benjamins Israel Writing pen
US2001726A (en) * 1932-08-24 1935-05-21 Howard Hunt Pen Company C Writing pen
BE479222A (fr) * 1945-03-26
US2905148A (en) * 1952-01-17 1959-09-22 Parker Pen Co Fountain pen
FR2503637A1 (fr) * 1981-04-10 1982-10-15 Dupont S T Dispositif d'ecriture pour stylographe a plume

Also Published As

Publication number Publication date
EP0209342A1 (fr) 1987-01-21
DE3670805D1 (de) 1990-06-07
JPH0357511Y2 (fr) 1991-12-27
JPS6219286U (fr) 1987-02-05

Similar Documents

Publication Publication Date Title
US2292381A (en) Fountain pen feed
GB1511809A (en) Marker with three stage ink feed
EP0209342B1 (fr) Instrument pour écrire
EP1083061B1 (fr) Article d'ecriture
US4610556A (en) Writing instrument with plural tips
ES287850U (es) Un dispositivo de punta de escritura para una pluma con de- posito
US4465391A (en) Pen nib construction
GB1039667A (en) Improvements in reservoir writing, drawing or marking instruments
WO2000064688A1 (fr) Plume de stylo
US3565542A (en) Nib device
CN217197581U (zh) 印章笔
US4633275A (en) Means for mounting a pen on a chart recorder
CN219405941U (zh) 指笔
CN217435371U (zh) 可放置笔芯的笔盖
CN2252705Y (zh) 圆珠自来水笔
JPS607193Y2 (ja) 筆記具
US2598171A (en) Nib for writing pens
JPS5982784U (ja) 弁機構を備えたマ−キングペン
KR810001800Y1 (ko) 개량 만년필 촉
JPH0952486A (ja) ペン先および万年筆
JPH034555Y2 (fr)
GB948431A (en) Improvements in or relating to fountain pens
JPS6041284U (ja) 液式筆記具
JPS5818778U (ja) ペン先部材
JP2584687Y2 (ja) 細管式筆記具

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19870604

17Q First examination report despatched

Effective date: 19890227

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 3670805

Country of ref document: DE

Date of ref document: 19900607

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: MUTSCHLER FEINWERKSTECHNIK GMBH

Effective date: 19910128

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: MUTSCHLER FEINWERKSTECHNIK GMBH

Effective date: 19910128

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19921005

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980610

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980706

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980929

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990714

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990731

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990714

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000503

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050714