EP0059256B1 - Schreibwagen für Schreibeinrichtungen mit darauf angeordnetem Vorratsbehälter - Google Patents

Schreibwagen für Schreibeinrichtungen mit darauf angeordnetem Vorratsbehälter Download PDF

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Publication number
EP0059256B1
EP0059256B1 EP19810109275 EP81109275A EP0059256B1 EP 0059256 B1 EP0059256 B1 EP 0059256B1 EP 19810109275 EP19810109275 EP 19810109275 EP 81109275 A EP81109275 A EP 81109275A EP 0059256 B1 EP0059256 B1 EP 0059256B1
Authority
EP
European Patent Office
Prior art keywords
printing
filter unit
ink supply
feed container
ink
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
EP19810109275
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0059256A2 (de
EP0059256A3 (en
Inventor
Karl Ing. Grad. Trey
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0059256A2 publication Critical patent/EP0059256A2/de
Publication of EP0059256A3 publication Critical patent/EP0059256A3/de
Application granted granted Critical
Publication of EP0059256B1 publication Critical patent/EP0059256B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J27/00—Inking apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/175—Ink supply systems ; Circuit parts therefor

Definitions

  • the invention relates to a writing carriage for ink writing devices comprising a carrier part, a writing head arranged on the carrier part with an exchangeable storage container for the writing liquid and a filter unit arranged between the storage container and the writing head.
  • Such a writing head is used in the context of a typewriter, it can be favorable to design the writing head so that it can be lowered below the writing point, if necessary, in order to facilitate the view of the writing point. In this case, an elastic connection between the storage container and the writing head is necessary. Such a connecting element is accessible from the outside and can therefore be damaged.
  • Such a device is known from DE-OS 28 12 620, in which a filter disk is inserted between an exchangeably arranged ink reservoir and the feed line to the write head.
  • the object of the invention is to provide a writing carriage of the type mentioned at the outset for an ink writing device, in which the ink is guided as directly and safely as possible from the ink supply bottle via a filter device to the writing head.
  • the writing trolley should be as compact as possible and functionally reliable with a low mass.
  • the filter unit is designed as a filter unit that can be used independently, it can be easily manufactured and easily replaced in the event of a fault.
  • the filter unit can also be produced in a simple manner from plastic from injection molding and in turn can be assembled in a simple manner by pressing together a metal ring.
  • the transition point between the ink reservoir of the filter unit and the connecting hose between the filter unit and ink writing head is within a dense trough of the carrier part, possibly escaping ink collects in this carrier part, so that there is no damage to the writing device.
  • the approximately constant cross-section of the connection system between the write head and the filter is easy to produce on the one hand, and on the other hand this prevents the formation of gas bubbles within the supply system.
  • the separation of carrier part and filter unit enables each part to assign the optimal material.
  • the carrier part can be made of unbreakable glass fiber reinforced plastic, but the filter unit can be made of an ink-tight thermoplastic.
  • the writing carriage shown in FIG. 1 for an ink mosaic writing device with piezoelectrically operated writing nozzles is moved line by line along a recording medium by a driving device, not shown here, via guide elements.
  • the writing carriage consists of a carrier part 1 made of glass fiber reinforced plastic, a pivotable writing head 2 arranged thereon, a filter unit 3 and not shown here, an exchangeable ink supply container arranged on the filter unit.
  • the side parts 4 of the carrier part 1 are pulled up, the carrier part 1 being designed like a trough in the region of the storage container.
  • Guide elements 5 for receiving the filter unit 3 are provided in this area.
  • the guide elements 5 also serve as a holder for the ink reservoir, which is designed to be exchangeable and is simply attached to the filter unit 3.
  • the filter unit consists of a lower part 6 having a trough-like filter space with connection elements, namely a connector 7 for the connecting tube 8 between the filter unit and write head 2; Furthermore, from an arranged on the lower part 6, connecting element for ink supply to the reservoir, namely a hollow needle 9, having upper part 10 and a filter element 11 arranged between the lower and upper part.
  • This filter element separates the actual filter space into a lower one the ink reservoirs via the hollow needle 9 connected settling space 12 and into an upper space 13 connected to the connecting tube 8. So that the ink can flow through the filter unit in the dashed manner shown in the drawing in FIG. 2, there is a circular distribution element 14 provided with a longitudinal slot on the bottom of the lower part 6.
  • the filter disc with the associated passage opening 15 is located on this distribution element 14 and forms in connection with that attached to the upper part Sealing elements 16 provided circular attachment piece 17 the inflow channel from the hollow needle 9 to the settling chamber 12.
  • the filter plate 11 is also fixed by a support ring 18 on the edges of the lower part 6.
  • An O-ring 19 is attached as a seal between the upper and lower part.
  • the upper part has a guide region 20 for the rubber stopper, not shown here, which closes the ink supply bottle, the hollow needle 9 piercing this sealing plug when the ink supply bottles are exchanged.
  • the entire upper part including the hollow needle 9 is injection molded from a single plastic element. The same applies to the lower part 6 with the distribution element 14.
  • a pressed-on metal ring 21 holds the individual elements of the filter unit together in a simple manner.
  • the filter unit 3 is fastened in the guide elements 5 of the carrier part 1 via an expansion ring 22.

Landscapes

  • Ink Jet (AREA)
EP19810109275 1981-02-27 1981-10-29 Schreibwagen für Schreibeinrichtungen mit darauf angeordnetem Vorratsbehälter Expired EP0059256B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813107556 DE3107556C2 (de) 1981-02-27 1981-02-27 Schreibwagen für Tintenschreibeinrichtungen mit darauf angeordnetem Tintenvorratsbehälter
DE3107556 1981-02-27

Publications (3)

Publication Number Publication Date
EP0059256A2 EP0059256A2 (de) 1982-09-08
EP0059256A3 EP0059256A3 (en) 1983-08-17
EP0059256B1 true EP0059256B1 (de) 1986-02-26

Family

ID=6125976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810109275 Expired EP0059256B1 (de) 1981-02-27 1981-10-29 Schreibwagen für Schreibeinrichtungen mit darauf angeordnetem Vorratsbehälter

Country Status (3)

Country Link
EP (1) EP0059256B1 (ja)
JP (1) JPS57157783A (ja)
DE (1) DE3107556C2 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3424244A1 (de) * 1984-06-30 1986-01-09 Olympia Werke Ag, 2940 Wilhelmshaven Daempfungs- und filtereinrichtung fuer eine tintendruckeinrichtung zum mehrfarbigen bedrucken eines aufzeichnungstraegers
JPS61158465A (ja) * 1984-12-28 1986-07-18 Canon Inc インクジエツト記録装置
TW297332U (en) * 1993-01-19 1997-02-01 Canon Kk Ink jet cartridge, ink jet apparatus and ink container

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610518C3 (de) * 1976-03-12 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Tintenvorratsbehälter für Tintenschreibeinrichtungen
US4162501A (en) * 1977-08-08 1979-07-24 Silonics, Inc. Ink supply system for an ink jet printer
DE2737911C2 (de) * 1977-08-23 1981-12-03 Olympia Werke Ag, 2940 Wilhelmshaven Blasensammler in Tintenversorgungssystemen
DE2812620A1 (de) * 1978-03-22 1979-09-27 Siemens Ag Vorrichtung fuer tintenschreibeinrichtungen in buero-, daten- oder fernschreibmaschinen
DE2812562C2 (de) * 1978-03-22 1983-09-08 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum wahlweisen Absperrender Tintenflusses in Tintenschreibeinrichtungen von Büro-, Daten- oder Fernschreibmaschinen
DE7833494U1 (de) * 1978-11-10 1980-04-17 Siemens Ag, 1000 Berlin Und 8000 Muenchen Flasche fuer schreibfluessigkeit
DE2925812C2 (de) * 1979-06-26 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Tintendruckeinrichtung zum mehrfarbigen Bedrucken eines Aufzeichnungträgers

Also Published As

Publication number Publication date
DE3107556A1 (de) 1982-09-16
EP0059256A2 (de) 1982-09-08
DE3107556C2 (de) 1987-04-02
EP0059256A3 (en) 1983-08-17
JPS57157783A (en) 1982-09-29

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