EP0149216B1 - Schreibvorrichtung - Google Patents

Schreibvorrichtung Download PDF

Info

Publication number
EP0149216B1
EP0149216B1 EP84116112A EP84116112A EP0149216B1 EP 0149216 B1 EP0149216 B1 EP 0149216B1 EP 84116112 A EP84116112 A EP 84116112A EP 84116112 A EP84116112 A EP 84116112A EP 0149216 B1 EP0149216 B1 EP 0149216B1
Authority
EP
European Patent Office
Prior art keywords
housing
writing
storage tank
needle
tank
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
EP84116112A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0149216A2 (de
EP0149216A3 (en
Inventor
Kurt Held
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
Application filed by Individual filed Critical Individual
Priority to AT84116112T priority Critical patent/ATE34341T1/de
Publication of EP0149216A2 publication Critical patent/EP0149216A2/de
Publication of EP0149216A3 publication Critical patent/EP0149216A3/de
Application granted granted Critical
Publication of EP0149216B1 publication Critical patent/EP0149216B1/de
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
    • B43K8/16—Pens with writing-points other than nibs or balls with tubular writing-points comprising a movable cleaning element
    • 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
    • B43K5/02—Ink reservoirs
    • B43K5/14—Exchangeable ink cartridges
    • B43K5/145—Exchangeable ink cartridges with valves
    • 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
    • B43K5/1818—Mechanical feeding means, e.g. valves; Pumps
    • B43K5/1827—Valves
    • B43K5/1836—Valves automatically closing
    • B43K5/1845—Valves automatically closing opened by actuation of the writing point
    • 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
    • B43K7/03—Ink reservoirs; Ink cartridges pressurised, e.g. by gas

Definitions

  • the invention relates to a writing device according to the preamble of claim 1
  • a writing device according to the preamble of claim 1
  • known devices of this type US-A-3 561 881, FR-A-517 883
  • the writing liquid flows out of the writing tube without pressure under the force of gravity alone. This can easily lead to blockages of the writing tube and, especially when the writing fluid runs out, to uneven writing.
  • the valve seat of these devices is relatively large and blunt, so that sealing problems occur and a safe lifting of the drop weight and the associated flow of the writing fluid is hindered.
  • a pen is also known (US-A-2 783488), in which a writing tip made of felt is provided and the felt is constantly soaked with writing fluid.
  • a writing tube with valve seat and a drop weight, which acts as a valve body, are not available with this pen.
  • the writing fluid is not under the pressure of a gas.
  • the writing device shown in the drawing consists of a storage tank 1, on one end of which the actual writing instrument in the form of a housing 2 is screwed by means of a threaded connection 3.
  • the tank 1, which is hermetically sealed on all sides, contains a supply of ink or another writing liquid 4 and a propellant gas 5, which is introduced into the tank in a small amount in the form of a so-called “liquid gas” together with the writing liquid 4.
  • a halogenated hydrocarbon such as "Frigen” or the like is suitable as the propellant.
  • the propellant gas 5 is constantly contained in the storage tank 1 and is under its own vapor pressure, which is preferably between about 100,000 and 500,000 Pa (1 and 5 bar), in particular 100,000 and 300,000 Pa (1 and 3 bar), at room temperature .
  • a writing tube 6 is firmly inserted in a manner known per se, in the axial bore of which a needle 7 of smaller diameter than the diameter of the bore is freely displaceable.
  • the needle 7 projects approximately 0.2 mm beyond the free end of the writing tube 6.
  • the needle 7 is also firmly connected in a known manner to a falling weight 8 which can be freely moved in the housing 2.
  • the drop weight 8 moves back and forth with the needle 7 attached to it, so that dried-on ink at the tip of the writing tube 6 can be released.
  • the drop weight 8 is in the embodiment shown under the action of a compression spring 9, which biases the drop weight 7 towards the writing tube 6.
  • this compression spring is not absolutely necessary for the operation of the writing device.
  • a plug 11 which is clamped into the housing 2 with a snap action, serves as the counter bearing for the compression spring 9.
  • the housing 2 has an annular gap-shaped opening 12 between the housing wall and the security plug 11, which is directed towards the storage tank 1.
  • the opening 12 continues through recesses 13 of the locking plug 11 into a plurality of capillary gaps 14 between the wall 15 of the housing 2 and the outside of the drop weight 8 up to the central bore of the writing tube 6, where the writing fluid between the inner wall of the writing tube and the needle 7, supported by capillary action until it flows to the nib 16 in order to exit there.
  • the storage tank 1 contains at its end connected to the housing 2 a closure valve in the form of a sealing ball 17 made of rubber or another elastomeric material.
  • a closure valve in the form of a sealing ball 17 made of rubber or another elastomeric material.
  • the sealing ball 17 in order to fulfill its locking function on the tank 1, snaps into a locking groove 18 formed on the tank.
  • the sealing ball becomes 17 is pushed out of the locking groove by the securing plug 11, which is firmly seated in the housing 2, so that it assumes the position shown in FIG. 1, in which the inlet opening 12 of the housing 2 communicates with an outlet opening 19 of the tank 1.
  • the writing liquid 4 can pass from the storage tank 1 into the housing 2 and from there reach the writing tip 16 in the manner already described.
  • the end of the writing tube 6 lying inside the housing 2 has the shape a roof-like chamfered cutting edge 21, which serves as a valve seat.
  • a sealing element 22 is arranged as a valve body in a corresponding recess, which is pressed against the ring cutting edge 21 in a sealing manner when the writing device is not in use under the effect of the propellant gas pressure and the compression spring 9.
  • the valve consisting of the parts 21, 22 ensures that the writing liquid under the pressure of the propellant gas is reliably prevented from flowing out.
  • the valve is opened without any problems.
  • the valve closes immediately under the action of the propellant gas pressure and the compression spring 9.
  • the drop weight 8 is guided on the inner surface of the housing 2 provided with the capillary gaps 14 (FIG. 3).
  • a capillary sponge 23 for example in the form of a foamed plastic, is arranged in front of the outlet opening 19.
  • the sponge 23 constantly soaks up writing liquid and ensures that this liquid passes into the outlet opening 19 under the action of the propellant gas 5, so that even the last remnants of the writing liquid can be used.
  • the writing device shown and described is not only suitable for use in an almost vertical position, in which the space filled with propellant gas 5 is located on the left side of the storage tank 1 in FIG. 1.
  • the writing device can, in particular, as shown in FIG. 1, be used largely horizontally on steeply standing drawing boards or the like, in which case the space filled with propellant gas has the position shown in FIG. 1.
  • the capillary sponge 23, which is always filled with colored liquid proves to be favorable with regard to the transfer of the writing liquid 4 under the action of the propellant gas 5 from the storage tank 1 into the housing 2 and the writing tube 6.
  • the capillary sponge 23 is held firmly by a fastening disk 25, which is provided with openings 24 and bears against the inner wall of the storage tank 1 with low tension.
  • the writing fluid can enter the capillary sponge 23 via the openings 24.
  • the sealing ball 17 is held between the locking plug 1 and the annular capillary sponge 23.
  • the sealing ball 17 could also be pushed freely into the tank interior when the housing 2 is joined to the tank 1, where it then floats freely on the surface of the writing fluid supply.
  • the writing device described so far essentially consists of the cartridge-like storage tank 1 and the housing 2. After the writing liquid in the tank 1 has been used up, the empty tank is unscrewed and replaced with a new, full tank. In another embodiment, the tank 1 is permanently and permanently connected to the housing 2. After the writing fluid has been used up, the entire unit is thrown away. In this case, the sealing ball 17 is omitted.
  • the storage tank 1 is, as can also be seen from Fig. 1, with a z. B. welded lid 26 closed.
  • the cover 26 is applied after the writing liquid 4 and the (liquid) propellant gas 5 have been introduced.
  • the end of the storage tank 1 which has not yet been closed by the cover 26 also enables the insertion of the sealing ball 17, the capillary sponge 23 and the fastening disk 25.
  • An O-ring 27 serves to seal between the storage tank 1 and the housing 2.
  • the diameter of the ring cutter 21 is particularly important to make the diameter of the ring cutter 21 as small as possible, for example about 0.4 mm, so that the force required to close and open the valve is also low. Since the writing tube 6 has a small diameter from the start, it is therefore advantageous to design the valve in the form of the mentioned annular cutting edge 21 directly at the end of the writing tube 6 lying in the housing 2 and as the valve body the free front end provided with the sealing element 22 Take advantage of falling weight 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
  • Holo Graphy (AREA)
  • Noodles (AREA)
  • Facsimile Heads (AREA)
EP84116112A 1983-12-31 1984-12-21 Schreibvorrichtung Expired EP0149216B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84116112T ATE34341T1 (de) 1983-12-31 1984-12-21 Schreibvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3347708 1983-12-31
DE19833347708 DE3347708A1 (de) 1983-12-31 1983-12-31 Schreibvorrichtung

Publications (3)

Publication Number Publication Date
EP0149216A2 EP0149216A2 (de) 1985-07-24
EP0149216A3 EP0149216A3 (en) 1985-08-21
EP0149216B1 true EP0149216B1 (de) 1988-05-18

Family

ID=6218547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84116112A Expired EP0149216B1 (de) 1983-12-31 1984-12-21 Schreibvorrichtung

Country Status (5)

Country Link
US (1) US4605331A (en(2012))
EP (1) EP0149216B1 (en(2012))
JP (1) JPS60159097A (en(2012))
AT (1) ATE34341T1 (en(2012))
DE (1) DE3347708A1 (en(2012))

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61152484U (en(2012)) * 1985-03-14 1986-09-20
US5073058A (en) * 1989-05-17 1991-12-17 Kabushiki Kaisha Sakura Kurepasu Implement for applying liquid
DE4013011C1 (en) * 1990-04-24 1991-03-14 Rotring-Werke Riepe Kg, 2000 Hamburg, De Tubular pen used as writing implement - has buffer chamber between front end of bore and rear end of tube which is checked for ink level by regulator
JP2579661Y2 (ja) * 1991-11-28 1998-08-27 ぺんてる株式会社 小管式筆記具
CN104129199A (zh) * 2014-07-23 2014-11-05 中国人民武装警察部队工程大学 针管笔插腿

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US238024A (en) * 1881-02-22 Feancis
US263389A (en) * 1882-08-29 Edmund coffin
US948832A (en) * 1909-06-01 1910-02-08 Leon Trotzky Stylographic pen.
US1033520A (en) * 1912-04-06 1912-07-23 Antoni Bator Envelop-moistening device.
US1166896A (en) * 1915-09-02 1916-01-04 Christopher A Garvey Fountain-brush.
FR517883A (fr) * 1918-10-25 1921-05-14 Hermann Burkhardt Stylographe à réservoir
US2029152A (en) * 1934-09-22 1936-01-28 Teofil L Bonkowski Ink eradicating device
DE689598C (de) * 1937-03-03 1940-03-28 Montblanc Simplo Gmbh Fuellfederhalter mit an einem Fallgewicht befestigtem und durch ein Schreibrohr hindurchgefuehrtem Schreibdraht
CH288459A (fr) * 1951-01-18 1953-01-31 Gogniat Bono Georgette Stylographe.
US2783488A (en) * 1956-02-27 1957-03-05 Harry W Jockers Marking pens
US3003182A (en) * 1959-08-13 1961-10-10 Speedry Chemical Products Inc Fountain pens
US3233275A (en) * 1963-09-18 1966-02-08 Sheaffer W A Pen Co Writing implement
US3228057A (en) * 1964-03-09 1966-01-11 Walter B Sprague Combination applicator brush and dispenser
US3425779A (en) * 1966-09-01 1969-02-04 Paul C Fisher Pressurized marking instrument
DE1561866A1 (de) * 1967-03-25 1970-04-02 Pelikan Werke Wagner Guenther Patronenfuellhalter
US3561881A (en) * 1969-05-07 1971-02-09 Edward Bok Stylographic pen with the capillary passage cleaning means operable by hand or by shaking or contact
NL7008747A (en(2012)) * 1970-06-15 1971-12-17
US3706099A (en) * 1970-12-14 1972-12-12 Varian Associates Graphic recorder employing a reservoir lettering pen type stylus
JPS4960831U (en(2012)) * 1972-09-11 1974-05-28
US3788753A (en) * 1973-03-19 1974-01-29 S Stewart Elongated liquid marker
JPS565676U (en(2012)) * 1979-06-28 1981-01-19
DE3041277C2 (de) * 1980-11-03 1983-03-31 Fa. J.S. Staedtler, 8500 Nürnberg Schreibmitteleinheit für automatische Schreib- oder Zeichenmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Taschenbuch für Heizung und Klimatechnik 86/87, Hönmann und Sprenger, Seite 149, 150, 1471 *

Also Published As

Publication number Publication date
EP0149216A2 (de) 1985-07-24
DE3347708A1 (de) 1985-07-11
US4605331A (en) 1986-08-12
ATE34341T1 (de) 1988-06-15
JPS60159097A (ja) 1985-08-20
JPH0351240B2 (en(2012)) 1991-08-06
EP0149216A3 (en) 1985-08-21

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