EP0113274B1 - Perfectionnements aux stylographes à cartouches-recharges - Google Patents

Perfectionnements aux stylographes à cartouches-recharges Download PDF

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Publication number
EP0113274B1
EP0113274B1 EP83402447A EP83402447A EP0113274B1 EP 0113274 B1 EP0113274 B1 EP 0113274B1 EP 83402447 A EP83402447 A EP 83402447A EP 83402447 A EP83402447 A EP 83402447A EP 0113274 B1 EP0113274 B1 EP 0113274B1
Authority
EP
European Patent Office
Prior art keywords
pen
chamber
cartridge
ambient atmosphere
refill cartridge
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
EP83402447A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0113274A1 (fr
Inventor
Claude Grossiord
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.)
ST Dupont SA
Original Assignee
ST Dupont SA
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 ST Dupont SA filed Critical ST Dupont SA
Priority to AT83402447T priority Critical patent/ATE22255T1/de
Publication of EP0113274A1 publication Critical patent/EP0113274A1/fr
Application granted granted Critical
Publication of EP0113274B1 publication Critical patent/EP0113274B1/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
    • B43K7/00—Ball-point pens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/06—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by turning means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/12—Ball-point pens with retractable ball points
    • 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
    • B43K8/028—Movable closure or gate

Definitions

  • the present invention relates to improvements made to stylographs using, as an ink reserve, refill cartridges. It relates more particularly to the pressurization of such cartridges.
  • the present invention aims to ensure satisfactory pressurization of refill cartridges of stylograph and a limitation of ink consumption, when, at rest, the user omits to cover with the cap the writing tip of the pen.
  • DE-A-1 561 812 describes a stylographer, the refill cartridge of which includes a cap made of an elastic material, the end of which near the tip comprises a thinned zone. The purpose of this cap is to isolate the writing tip and the venting of the cartridge from ambient air, during the storage period.
  • the thinned area of the cap is perforated by means provided for this purpose on the stylograph. Then, nothing distinguishes this cartridge, from the point of view of its operation, from a conventional cartridge and, in the rest position, the point and the vent are in direct communication with the ambient atmosphere, so that nothing prevents ink evaporation phenomena.
  • DE-A-2 209 265 relates to a felt-tip cartridge pen, which has the particularity of not having a cap.
  • the writing position and the rest position are made by sliding the writing point inside the body.
  • This cartridge has a vent intended to ensure a pressure balance between the interior of the cartridge and the ambient atmosphere.
  • a seal ensures, behind the vent, a sealing effect vis-à-vis the internal part. On the other hand, there is no real seal before this vent.
  • the object of the present invention is to produce a stylograph of the aforementioned type which does not require the presence of a cap and in which the ink of the refill cartridge is not likely to evaporate in the rest position.
  • the subject of the invention is a stylograph of the type comprising an ink refill cartridge slidingly mounted in the body of the stylograph between two extreme positions, a rest position, in which the writing tip is retracted into the body of the pen, and a writing position, in which said point protrudes outside the body of the pen,
  • this refill cartridge being of the type comprising in the vicinity of the writing point at least one orifice, intended to ensure the air supply to the cartridge, said orifice opening into a chamber sealed against the ambient atmosphere formed between an envelope integral with the body of the pen and the cartridge-refill thereof, characterized in that it comprises means for communicating this chamber with the ambient atmosphere each time the cartridge passes from the rest position to the write position.
  • the space between the envelope thereof and the body of the stylographer is used over the entire length of the refill cartridge to form the above-mentioned chamber. It has in fact been found that it is sometimes advantageous to be able to have a chamber of a relatively large volume, in particular to dampen certain pressure variations which may occur during use.
  • the seal between the refill cartridge and the body of the stylographer is provided by a bellows. This arrangement allows a tight seal between the two parts, practically an example of friction.
  • This arrangement is also advantageous in the rest position, because it makes it possible to avoid this same kind of incident when, as a result of changes in altitude (especially in the case of travel by plane, etc.), the pressure of the chamber is at a pressure higher than atmospheric pressure.
  • the body 1 of a stylographer is equipped with a spare ink cartridge 3 ending in a writing tip 5.
  • the seal between these two parts of the cartridge and the cylindrical element 9 is ensured by two O-rings, 14 and 21.
  • the refill cartridge 3 is provided with two pressurization orifices 23, communicating through channels, not shown in the drawing, with the gaseous sky between the bottom and the level of the ink.
  • a hollow part or groove 10 is provided on the external part of the portion 17 of the body of the cartridge.
  • the refill cartridge is in the writing position, and the groove 10 is inside the chamber 7.
  • the latter is isolated from the ambient atmosphere by the O-rings 14 and 21 and it the same therefore applies to the orifices 23 of the cartridge 3.
  • the volume of the chamber 7 is defined in such a way that, in this position, the pen can achieve a given writing length without appreciable reduction in pressure, liable to harm the flow of the ink.
  • the user can leave his pen in the writing position without risking too much evaporation of the ink due to the relatively small volume of air in the chamber 7.
  • the writing tip 5 is retracted, the groove 10 is located inside the body of the pen and the chamber 7 is again isolated from the ambient atmosphere, as are the orifices 23, by the joints 14 and 21. Evaporation phenomena are therefore also limited.
  • the chamber 7 is placed in communication with the atmosphere and stores a given volume of air at atmospheric pressure.
  • the body of the stylographer according to the invention essentially consists of a tube 30 and a writing head 32 fixed thereon by a thread 34, with the interposition of a gasket. sealing 36.
  • a refill cartridge 38 provided with pressurization orifices 39, is slidably mounted in bores 40 and 42 of the tube 30 and of the head 32.
  • a valve 44 is mounted in leaktight manner on the writing tip 46 of the refill cartridge 38.
  • This valve is provided with a circular groove 48 receiving an O-ring seal 50. It is able to move, during of the movement of the refill cartridge, inside a cavity 54 provided in the writing head. The bottom 56 of this cavity receives an O-ring seal 58.
  • the tube 30 is hollowed out of a cylindrical cavity 60, in communication with the cavity 54.
  • An O-ring 62 provides sealing between the refill cartridge 38 and the tube 30.
  • the spring 52 applies the seal 48 of the valve 44 against the body of the stylographer.
  • the pressurization orifices 39 are then located inside the cavity 60. It can be seen that in this position, the volume of the chamber is considerably reduced, since it is limited to this single cavity 60. The phenomena of evaporation of the ink in the rest position are therefore also reduced.
  • the end 82 of a pusher actuated by means not shown in the drawing makes it possible, by acting in the direction of the force F, to bring and maintain the refill cartridge in the writing position.
  • the bellows 72 provides a perfect seal between the body 70 and the refill cartridge, while allowing axial movement of the latter, practically without friction.
  • the flexibility of this bellows is such that it allows it to compensate for the pressure differences that may form between the chamber and the ambient atmosphere.
  • the souf flounder can also be placed in front of the stylograph.
  • a bellows 72 ' is fixed by its base 74' to the tube 30 'using the writing head 32'.
  • the top 76 'of the bellows 72' is crossed, in a sealed manner, by the writing tip 46 'Means intended to control the setting of the atmosphere of the chamber 60' are then provided in the bottom of the stylograph.
  • a cylindrical cavity 54 ' is hollowed out in the bottom of the body 70' of the stylographer.
  • the two lateral faces 86 and 88 of this cavity are provided with sealing O-rings respectively 90 and 92.
  • a valve 94 is fixed to the bottom 78 ′ of the refill cartridge.
  • a spring 96 applies the valve 94 against the seal 90.
  • the cavity 54 ′ therefore the chamber, is isolated from the ambient atmosphere, but is in communication via the orifices pressurization of the refill cartridge (not shown in this drawing) with the gaseous sky above the ink. Its evaporation is therefore limited.
  • valve 94 comes into contact with the gasket 92.
  • the chamber is then isolated from the cavity 54 ', which is in communication with the atmosphere .
  • the valve is in the position illustrated in FIG. 9 and the chamber is in communication with the ambient atmosphere and fills with air at this pressure.
  • a cap 100 is rotatably mounted on the body 102 of a stylographer.
  • a screw 108 is screwed into the body of the latter and comes to bear on the bellows 110 in contact with the refill cartridge 112.
  • This screw 108 includes a toothed crown 106 whose teeth are engaged with grooves 104 in the cap.
  • the present invention therefore makes it possible to produce stylographs provided with refill cartridges using volatile inks and which do not however require the presence of a sealing cap.

Landscapes

  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Holo Graphy (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Credit Cards Or The Like (AREA)
EP83402447A 1982-12-30 1983-12-16 Perfectionnements aux stylographes à cartouches-recharges Expired EP0113274B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83402447T ATE22255T1 (de) 1982-12-30 1983-12-16 Schreibgeraete mit auswechselbaren patronen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8222062 1982-12-30
FR8222062A FR2538762A1 (fr) 1982-12-30 1982-12-30 Perfectionnements aux stylographes a cartouches-recharges

Publications (2)

Publication Number Publication Date
EP0113274A1 EP0113274A1 (fr) 1984-07-11
EP0113274B1 true EP0113274B1 (fr) 1986-09-17

Family

ID=9280670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83402447A Expired EP0113274B1 (fr) 1982-12-30 1983-12-16 Perfectionnements aux stylographes à cartouches-recharges

Country Status (10)

Country Link
US (1) US4544297A (enrdf_load_stackoverflow)
EP (1) EP0113274B1 (enrdf_load_stackoverflow)
JP (1) JPS59136296A (enrdf_load_stackoverflow)
KR (1) KR890000234B1 (enrdf_load_stackoverflow)
AT (1) ATE22255T1 (enrdf_load_stackoverflow)
DE (1) DE3366339D1 (enrdf_load_stackoverflow)
ES (1) ES284623Y (enrdf_load_stackoverflow)
FR (1) FR2538762A1 (enrdf_load_stackoverflow)
GB (1) GB2132565B (enrdf_load_stackoverflow)
HK (1) HK22588A (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343001A1 (de) * 1983-11-28 1985-06-05 Kousei Tokio/Tokyo Iwasaki Vorrichtung zum verhindern des eintrocknens der spitze eines patronenschreibstiftes
US5048990A (en) * 1986-11-07 1991-09-17 Ancos Co., Ltd. Writing instrument with drying-preventing mechanism
US4911570A (en) * 1987-07-27 1990-03-27 Rhoades Clark J Enclosure means for liquid applicators
WO1989000925A1 (en) * 1987-07-27 1989-02-09 Rhoades Clark J Enclosure means for liquid applicators
GB9325891D0 (en) * 1993-12-17 1994-02-23 Parker Pen Bv Writing instruments
GB9706461D0 (en) * 1997-03-27 1997-05-14 Gillette Co Marking instruments
JP2005516830A (ja) * 2002-02-13 2005-06-09 イノデスク・インコーポレイテッド 前方室を備えたキャップなしの引込可能な密封された筆記具
RU2283240C2 (ru) * 2002-04-08 2006-09-10 Сергей Николаевич Егоров Авторучка
CA2484081C (en) * 2002-04-17 2011-06-21 Avery Dennison Corporation Self-sealing retractable writing instrument
JP4716377B2 (ja) * 2007-01-23 2011-07-06 三菱鉛筆株式会社 筆記具

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR962176A (enrdf_load_stackoverflow) * 1950-06-02
FR957611A (enrdf_load_stackoverflow) * 1950-02-23
US3039436A (en) * 1956-09-19 1962-06-19 Exner Hellmuth Alfred Artur Fountain pen with retractable writing element
CH450960A (de) * 1964-02-10 1968-05-15 Adolf Dipl Ing Berglein Kugelschreibermine mit Abschlusseinrichtung gegen die Aussenluft
US3289636A (en) * 1965-01-12 1966-12-06 T & T Mfg Co Writing instrument
US3285228A (en) * 1965-05-19 1966-11-15 Paul C Fisher Anti-gravity pen
DE1561825B1 (de) * 1967-04-25 1972-03-16 Kurt Fend Verfahren für ein in einer Hülse angeordnetes Schreib- oder Zeichengerät mit feucht zu haltender Spitze
DE1561795A1 (de) * 1967-06-14 1970-04-02 Bross Dipl Ing Helmut Handschreibgeraet mit einem fluessigen Schreibmittel und einem in eine abgedichtete Rueckzugstellung im Schaft bringbaren Schreibelement,insbesondere Docht- oder Filzschreiber bzw. Fuellhalter
DE1561814A1 (de) * 1967-09-20 1970-04-02 Bross Dipl Ing Helmut Handschreibgeraet,insbesondere Druckdochtschreibgeraet
DE1561812A1 (de) * 1967-09-20 1970-04-02 Bross Dipl Ing Helmut Handschreibgeraet mit einem Verschluss,insbesondere Dochtschreibgeraete
DE1561828A1 (de) * 1967-11-21 1970-04-02 Heinz Fahnenstich Neuartiger Kugelschreiber mit eingebauter Luftpumpe und Druckkammer
US3583820A (en) * 1969-06-30 1971-06-08 Penn Corp Writing instruments
DE2209265A1 (de) * 1972-02-26 1973-08-30 Helmut Dipl Ing Bross Schreibgeraet, insbesondere dochtbzw. faserschreibgeraet od.dgl
CH581030A5 (en) * 1974-11-19 1976-10-29 Somers S Brice L Protective cap for ball point or felt tipped pen - has two shells forced apart when ink cartridge slides forwards
FR2451273A1 (fr) * 1979-03-15 1980-10-10 Brussel Jacques Stylographe retractable a cartouche d'encre liquide
DE3224816A1 (de) * 1981-07-02 1983-01-27 Ancos Co., Ltd., Osaka Schreibstift

Also Published As

Publication number Publication date
ES284623U (es) 1986-04-01
GB2132565A (en) 1984-07-11
GB2132565B (en) 1986-09-03
JPS59136296A (ja) 1984-08-04
KR840007083A (ko) 1984-12-05
ES284623Y (es) 1986-11-16
DE3366339D1 (en) 1986-10-23
FR2538762A1 (fr) 1984-07-06
GB8333973D0 (en) 1984-02-01
JPH0119356B2 (enrdf_load_stackoverflow) 1989-04-11
KR890000234B1 (ko) 1989-03-11
ATE22255T1 (de) 1986-10-15
US4544297A (en) 1985-10-01
FR2538762B1 (enrdf_load_stackoverflow) 1985-03-22
EP0113274A1 (fr) 1984-07-11
HK22588A (en) 1988-03-31

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