EP0175009B1 - Matrix printer, in particular a matrix line printer - Google Patents

Matrix printer, in particular a matrix line printer Download PDF

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Publication number
EP0175009B1
EP0175009B1 EP84111106A EP84111106A EP0175009B1 EP 0175009 B1 EP0175009 B1 EP 0175009B1 EP 84111106 A EP84111106 A EP 84111106A EP 84111106 A EP84111106 A EP 84111106A EP 0175009 B1 EP0175009 B1 EP 0175009B1
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EP
European Patent Office
Prior art keywords
electromagnets
matrix
printer according
matrix printer
conductors
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
EP84111106A
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German (de)
French (fr)
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EP0175009A1 (en
Inventor
Josef Ing. Pichler
Karl Ing. Puchegger
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Mannesmann Tally GmbH Austria
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Mannesmann Tally GmbH Austria
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 Mannesmann Tally GmbH Austria filed Critical Mannesmann Tally GmbH Austria
Priority to AT84111106T priority Critical patent/ATE36137T1/en
Priority to EP84111106A priority patent/EP0175009B1/en
Priority to DE8484111106T priority patent/DE3473132D1/en
Priority to US06/777,538 priority patent/US4727805A/en
Priority to JP60204582A priority patent/JPS6174853A/en
Publication of EP0175009A1 publication Critical patent/EP0175009A1/en
Application granted granted Critical
Publication of EP0175009B1 publication Critical patent/EP0175009B1/en
Expired legal-status Critical Current

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    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
    • B41J25/006—Mechanisms for bodily moving print heads or carriages parallel to the paper surface for oscillating, e.g. page-width print heads provided with counter-balancing means or shock absorbers
    • 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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for

Definitions

  • the invention relates to a matrix printer, in particular a matrix line printer, with a carrier for the printing elements which can be made to move back and forth, the driving means for the printing elements having electromagnets with cable connections, which consist of flexible strips and are connected to a character generator via switching logic, and the reciprocating support for the pressure elements consists of an approximately angular profile bar, the electromagnets being fastened in an approximately upright profile bar wall.
  • Such matrix printers are used as data printers in data processing units with high data output or are used in word processing systems as typing printers for texts of correspondence quality.
  • Such a printer is known from DE-AS-2224716 or US-PS-3999644.
  • a carriage, carriage or the like is equipped with a large number of electromagnets which move a printing needle in the direction of the printing roller and have the required cable connections at their rear ends.
  • z. B. 33 electromagnets, 66 cable connections are required.
  • the fastening of the electromagnets on the carrier requires special devices in order to ensure equal distances between the printing needles and a precise vertical alignment with the printing roller or with the recording medium resting on the printing roller.
  • the known solution considers a special holder necessary, which is described in DE-PS-2424629.
  • each mount is provided on the bar-shaped support in the longitudinal direction, on each of which a unit-forming electromagnet with its recording pen and its guide is arranged, and each mount has a partially cylindrical seat for receiving the electromagnet and a back adjoining it, in which a bearing for guiding the recording pen is arranged.
  • This design makes the beam-shaped carrier heavy and complex and not only makes it more expensive to manufacture, but also has a significant impact on other components of the printer. The consequence of this is e.g. an electric drive motor with a higher performance rating and more complex guide means for the beam-shaped carrier.
  • the invention is based on the object of proposing a low-mass carrier for the electromagnets which is easy and economical to produce and is particularly simple in construction and which does justice to all aspects of the pendulum movements of the print head of a matrix printer.
  • the profile bar consists of a simple angle profile piece, i.e. has an approximately upright and an essentially horizontal leg opposite the recording medium or the platen roller, that the fastening means for the electromagnets are let in and accessible from the side of the recording medium or the platen roller in the approximately upright leg of the angle profile piece, and that the Electromagnets are arranged in the interior space, which is open at the top and to the rear, in the interior space of the angle section piece, which is delimited by its two legs and are inserted into the leg with a guide shaft.
  • the angular profile bar combines the known beam-shaped support and the known holder for the electromagnets in a single functional part and therefore saves considerable moving mass.
  • the angular profile bar can also be selected from commercially available materials and only requires fine machining.
  • the position of the electromagnets can be determined with a high degree of accuracy within narrow tolerance limits by uniform machining of the longitudinal edges and the holes for the electromagnets according to distance and direction.
  • the carrier according to the invention is therefore easy, precise and economical to produce.
  • the guidance of the carrier for the oscillating movements can now also be made simple, safe and permanent by providing guide projections on the carrier parallel to the row of the pressure elements in the rest position or in the pressure position, which protrusions rest on rollers mounted on the printer chassis in a stationary manner.
  • the accuracy of the guidance is improved during assembly and any maintenance work that may become necessary on the printer in that the rollers, which are fixedly mounted on the printer chassis, can be individually adjusted.
  • the pendulum movements are transferred to the connection cables for the electromotives moving along thought. These oscillating movements can be absorbed without endangering the connecting cables in such a way that each of the electromagnets on the cable connections for the electromagnetic coil are connected to flat conductors insulated in a carrier material, which are guided in an arc from the moving carrier to a fixed plug contact.
  • the arcs of the individual conductors unpredictably allow movement across the flat conductor cross section due to the arc in continuous operation.
  • the desired arch shape is easily derived from the low bending resistance of the conductors with a flat cross-section.
  • a desired improved conductor routing, the clarity of the conductor system, also the durability in continuous operation, kinking, replacement and the like. can be simplified in that the flat, insulated conductors have a small thickness and are individually guided to a common holder and that in the course behind a further holder the flat, insulated conductors are brought together to form a ribbon cable and in the further course individual groups of conductors are formed which have a plug.
  • the cable connections in the immediate area of the electromagnets can also be laid economically by fastening the individual flat, insulated conductors in the immediate vicinity of the electromagnetic coil by means of a holding strip.
  • a holding strip acts here as a strain relief compared to the soldering points of the connections for the electromagnets.
  • the holding strip itself is attached in that the holding strip consists of an adhesive strip.
  • Handling, laying, contact with printer parts and the like. can also be taken into account in that the ribbon cable is provided on both sides with the flexible holders at the transitions of the arc from one conductor direction to another conductor direction.
  • Fiachbandkabefs for the print head (carrier with electromagnets and pressure elements) of the printer can also be applied in such a way that for additional electrical devices, such as. B. sensors, further flat conductors are provided on the ribbon cable.
  • the matrix printer shown in FIGS. 1 to 3 is designed as a matrix line printer.
  • the pendulum drive itself is only indicated in Fig. 1.
  • the pendulum travel 1a of the carrier 1 is z. B. on both sides about 6.5 mm, so that at least one character in matrix notation is covered in full width.
  • the electromagnets 4 are constructed in the manner of a moving core magnet, so that the pressure elements 2 are always held in a rearward position or are fired into a front printing position after actuation of the electromagnet 4.
  • pressure hammers with pressure peaks can also be used as pressure elements 2, such pressure hammers being able to be designed as resilient strips according to the principle of stored energy by means of a permanent magnet and for firing the pressure hammer by means of an electromagnet canceling the magnetic field of the permanent magnet.
  • the electromagnets 4 are connected with the cable connections 3 to a switching logic (control) (not shown) and to a character generator.
  • the matrix printer is equipped with appropriate interfaces for connection to the desired data processing system.
  • the oscillating carrier 1 is made of a light material, such as Made of an aluminum alloy, and forms in its basic form a profile rod 5 in the form of an angle profile piece with an approximately upright leg 9 and an essentially horizontal leg 10.
  • the carrier 1 can of course also be made as a casting from a light alloy or plastic.
  • the carrier 1 lies in the assembled state of the platen roller 6 (as a pressure abutment) or the recording medium 7 lying on the platen roller 6 and moving in steps or continuously or the ink ribbon 7a (FIGS. 1 and 2).
  • the approximately upright profile rod wall 9 (FIG.
  • the profile rod wall 9 has a rib 11 running in the longitudinal direction in order to arrange the bores 12 for the spacing and alignment of the electromagnets 4 or their pressure needles.
  • the electromagnets 4 have a guide shaft 13 which is threaded.
  • the profile bar wall 9 is slightly inclined upwards to allow a clear view of the To allow writing gap.
  • the pendulum path 1a of the carrier There are several on the carrier 1, the pendulum path 1a of the carrier
  • each electromagnet 4 has flat, very thin conductors 18 and 19 in cross section, which are first soldered to the contacts of the respective electromagnetic coil and extend to the top of the horizontal leg 10 or to the profile bar wall 9 and are fastened there by means of a holding strip 20 (FIG. 3). From this fastening, the conductors 18 and 19 arranged in parallel next to one another each run in an arc 21 to a contact sleeve 18a of the electronic circuit.
  • the flat conductors 18 and 19 encased in a transparent, insulating carrier material each have a minimum thickness 22. They are guided in pairs 23 to a holder 24 (FIGS. 1 and 4), then again run individually or in groups to a further holder 25 on a cable holder 16a and then form a single ribbon cable 26 which has individual groups 27 of conductors , each ending in a connector 28. These plugs 28 are inserted into the associated contact sleeves 18a of the fixed electronic circuit.
  • the conductor guide described is able (Fig. 2) to the left and right the described pendulum movements of e.g. 6.5mm without causing damage in continuous operation.
  • the individual flat, insulated conductors 18, 19 are fastened above (or below) the electromagnetic coils 4 by means of the holding strip 20, which consists of a simple insulating adhesive strip 30.
  • the ribbon cable 26 is provided on both sides (FIG. 5) with the brackets 24 at the transitions 29 of the arc 21 from one conductor direction to another conductor direction.
  • 4 and 5 is particularly suitable for additional electrical devices 31, such as for sensors and the like add more flat conductors 32, 33, 34.

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Impact Printers (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

A matrix line printer has an L-shaped shuttle for a series of electromagnetic actuators. Wires are provided running in an arc from the printer frame to the shuttle. Peojections on the shuttle engage eccentrically mounted rollers on the frame.

Description

Die Erfindung betrifft einen Matrixdrucker, insbesondere einen Matrixzeilendrucker, mit einem in hin- und hergehende Bewegungen versetzbaren Träger für die Druckelemente, wobei die Antriebsmittel für die Druckelemente Elektromagnete mit Kabelanschlüssen aufweisen, die aus flexiblen Streifen bestehen und über eine Schaltlogik mit einem Zeichengenerator verbunden sind, und der hin- und hergehende Träger für die Druckelemente aus einem etwa winkelförmigen Profilstab besteht, wobei die Elektromagnete in einer etwa aufrechtstehenden Profilstabwandung befestigt sind.The invention relates to a matrix printer, in particular a matrix line printer, with a carrier for the printing elements which can be made to move back and forth, the driving means for the printing elements having electromagnets with cable connections, which consist of flexible strips and are connected to a character generator via switching logic, and the reciprocating support for the pressure elements consists of an approximately angular profile bar, the electromagnets being fastened in an approximately upright profile bar wall.

Derartige Matrixdrucker werden als Datendrukker in Datenverarbeitungseinheiten mit hohem Datenausstoss verwendet oder dienen in Textverarbeitungsanlagen als Schönschreibdrucker für Texte in Korrespondenzqualität.Such matrix printers are used as data printers in data processing units with high data output or are used in word processing systems as typing printers for texts of correspondence quality.

Ein solcher Drucker ist aus der DE-AS-2224716 bzw. US-PS-3999644 bekannt. Bei dem Drucker wird ein Schlitten, Wagen od. dgl. mit einer hohen Anzahl von Elektromagneten bestückt, die in Richtung zur Druckwalze eine Drucknadel bewegen und an ihren rückwärtigen Enden die erforderlichen Kabelanschlüsse aufweisen. Bei z. B. 33 Elektromagneten sind somit 66 Kabelanschlüsse erforderlich. Davon abgesehen, erfordert die Befestigung der Elektromagnete auf dem Träger besondere Vorrichtungen, um gleiche Abstände der Drucknadeln und eine genaue senkrechte Ausrichtung zur Druckwalze bzw. zu dem auf der Druckwalze aufliegenden Aufzeichnungsträger zu sichern. Die bekannte Lösung hält eine besondere Halterung für erforderlich, die in der DE-PS-2424629 beschrieben ist. Danach sind auf dem balkenförmigen Träger eine Anzahl in seiner Längsrichtung nebeneinander angebrachter Halterungen vorgesehen, auf denen jeweils ein eine Einheit bildender Elektromagnet mit seinem Aufzeichnungsstift und dessen Führung angeordnet ist und jede Halterung besitzt einen teilzylindrischen Sitz zur Aufnahme des Elektromagneten und einen sich daran anschliessenden Rücken, in dem ein Lager für die Führung des Aufzeichnungsstiftes angeordnet ist. Diese Gestaltung macht den balkenförmigen Träger schwer und aufwendig und verteuert nicht nur seine Herstellung, sondern zeigt erhebliche Auswirkungen auf andere Baugruppen des Druckers. Die Folge davon ist z.B. ein stärker in seinen Leistungsdaten bemessener elektrischer Antriebsmotor und aufwendigere Führungsmittel für den balkenförmigen Träger. Es ist daher bereits aus physikalischen Gründen abzulehnen, die Masse des balkenförmigen Trägers, der um die Masse der Elektromagnete vergrössert sein muss, nun auch noch durch die Masse einer besonderen Halterung zu vergrössern. Nachteilig ist ausserdem, dass die Kabelanschlüsse die bewegte träge Masse weiter vergrössern und hierbei die Lebensdauer der elektrischen Leiter nachteilig beeinflussen.Such a printer is known from DE-AS-2224716 or US-PS-3999644. In the printer, a carriage, carriage or the like is equipped with a large number of electromagnets which move a printing needle in the direction of the printing roller and have the required cable connections at their rear ends. At z. B. 33 electromagnets, 66 cable connections are required. Apart from this, the fastening of the electromagnets on the carrier requires special devices in order to ensure equal distances between the printing needles and a precise vertical alignment with the printing roller or with the recording medium resting on the printing roller. The known solution considers a special holder necessary, which is described in DE-PS-2424629. Thereafter, a number of mounts are provided on the bar-shaped support in the longitudinal direction, on each of which a unit-forming electromagnet with its recording pen and its guide is arranged, and each mount has a partially cylindrical seat for receiving the electromagnet and a back adjoining it, in which a bearing for guiding the recording pen is arranged. This design makes the beam-shaped carrier heavy and complex and not only makes it more expensive to manufacture, but also has a significant impact on other components of the printer. The consequence of this is e.g. an electric drive motor with a higher performance rating and more complex guide means for the beam-shaped carrier. For physical reasons, it must therefore be rejected to increase the mass of the beam-shaped support, which must be increased by the mass of the electromagnets, by the mass of a special holder. Another disadvantage is that the cable connections further increase the moving inertial mass and adversely affect the service life of the electrical conductors.

Eine bedeutend leichtere Bauweise ist aus der EP-A-0098316 bekannt. Da diese Bauweise einen Profilstab aus einem grösseren und einem kleineren Querschnittsteil voraussetzt, ist der somit geschaffene Schwingrahmen nur für Elektromagnete in Klappankerbauweise anwendbar. Hierzu ist es erforderlich, dass der grössere Querschnittsteil für die Aufnahme des Magnetjochs, der Elektromagnetspule, einer kurzen Drucknadel und des Klappankers dient, währenddem der kleinere Querschnittsteil für die Aufnahme der durch Ausschnitte verlaufenden Klappankerspitze und einer Einstellschraube vorgesehen ist. Obwohl der bekannte Schwingrahmen relativ massearm ist, ist sein Aufbau dennoch relativ kompliziert bzw. aufwendig.A significantly lighter design is known from EP-A-0098316. Since this design requires a profile rod made up of a larger and a smaller cross-section, the oscillating frame thus created can only be used for electromagnets with a hinged armature design. For this purpose, it is necessary that the larger cross-sectional part is used for receiving the magnetic yoke, the electromagnetic coil, a short pressure needle and the hinged armature, while the smaller cross-sectional part is intended for accommodating the hinged anchor tip running through cutouts and an adjusting screw. Although the known swing frame is relatively low in mass, its construction is nevertheless relatively complicated or complex.

Der Erfindung liegt die Aufgabe zugrunde, einen massearmen Träger für die Elektromagnete vorzuschlagen, der leicht und wirtschaftlich herstellbar und besonders einfach aufgebaut ist und der allen Belangen der Pendelbewegungen des Druckkopfes eines Matrixdruckers gerecht wird.The invention is based on the object of proposing a low-mass carrier for the electromagnets which is easy and economical to produce and is particularly simple in construction and which does justice to all aspects of the pendulum movements of the print head of a matrix printer.

Die gestellte Aufgabe wird erfindungsgemäss dadurch gelöst, dass der Profilstab aus einem einfachen Winkelprofilstück besteht, d.h. einen dem Aufzeichnungsträger bzw. der Schreibwalze gegenüberliegenden, etwa aufrechtstehenden und einen im wesentlichen waagerechten Schenkel besitzt, dass die Befestigungsmittel für die Elektromagnete von der Seite des Aufzeichnungsträgers bzw. der Schreibwalze her in den etwa aufrechtstehenden Schenkel des Winkelprofilstücks eingelassen und zugänglich sind, und dass die Elektromagnete in dem nach oben und hinten offenen Innenraum des von seinen beiden Schenkeln abgegrenzten Innenraums des Winkelprofilstücks angeordnet und mit einem Führungsschaft in den Schenkel eingeführt sind. Der winkelförmige Profilstab vereinigt den bekannten balkenförmigen Träger und den bekannten Halter für die Elektromagnete in einem einzigen Funktionsteil und erspart daher erheblich an bewegter Masse. Der winkelförmige Profilstab kann ausserdem von handelsüblichen Materialien ausgewählt werden und bedarf lediglich einer Fein-Bearbeitung. Die Lage der Elektromagnete kann durch eine einheitliche Bearbeitung der Längskanten und der Bohrungen für die Elektromagnete nach Abstand und Richtung mit hoher Genauigkeit in engen Toleranzgrenzen festgelegt werden. Der erfindungsgemässe Träger ist daher leicht, genau und wirtschaftlich herstellbar.The object is achieved according to the invention in that the profile bar consists of a simple angle profile piece, i.e. has an approximately upright and an essentially horizontal leg opposite the recording medium or the platen roller, that the fastening means for the electromagnets are let in and accessible from the side of the recording medium or the platen roller in the approximately upright leg of the angle profile piece, and that the Electromagnets are arranged in the interior space, which is open at the top and to the rear, in the interior space of the angle section piece, which is delimited by its two legs and are inserted into the leg with a guide shaft. The angular profile bar combines the known beam-shaped support and the known holder for the electromagnets in a single functional part and therefore saves considerable moving mass. The angular profile bar can also be selected from commercially available materials and only requires fine machining. The position of the electromagnets can be determined with a high degree of accuracy within narrow tolerance limits by uniform machining of the longitudinal edges and the holes for the electromagnets according to distance and direction. The carrier according to the invention is therefore easy, precise and economical to produce.

Die Führung des Trägers für die Pendelbewegungen kann nunmehr ebenfalls einfach, sicher und dauerhaft gestaltet werden, indem parallel zur Reihe der in Ruhestellung bzw. in Druckstellung befindlichen Druckelemente Führungsvorsprünge am Träger vorgesehen sind, die an auf dem Druckerchassis ortsfest gelagerten Rollen anliegen.The guidance of the carrier for the oscillating movements can now also be made simple, safe and permanent by providing guide projections on the carrier parallel to the row of the pressure elements in the rest position or in the pressure position, which protrusions rest on rollers mounted on the printer chassis in a stationary manner.

Die Genauigkeit der Führung wird bei Montage und etwa notwendig werdenden Wartungsarbeiten am Drucker dadurch verbessert, dass die auf dem Druckerchassis ortsfest gelagerten Rollen einzeln einstellbar sind.The accuracy of the guidance is improved during assembly and any maintenance work that may become necessary on the printer in that the rollers, which are fixedly mounted on the printer chassis, can be individually adjusted.

Die Pendelbewegungen übertragen sich auf die Anschlusskabel für die mitbewegten Elektromagnete. Diese Pendelbewegungen lassen sich, ohne die Anschlusskabel zu gefährden, derart auffangen, dass jeder der Elektromagnete an den Kabelanschlüssen für die Elektromagnetspule mit flachen, in einem Trägermaterial isolierten Leitern verbunden sind, die in einem Bogen vom bewegten Träger zu einem feststehenden Steckkontakt geführt sind. Die Bögen der einzelnen Leiter lassen unvorhersehbarerweise eine Bewegung quer zum flachliegenden Leiterquerschnitt aufgrund des Bogens im Dauerbetrieb zu. Die gewünschte Bogenform ergibt sich hierbei leicht aus dem geringen Biegewiderstand der mit Flachquerschnitt versehenen Leiter.The pendulum movements are transferred to the connection cables for the electromotives moving along thought. These oscillating movements can be absorbed without endangering the connecting cables in such a way that each of the electromagnets on the cable connections for the electromagnetic coil are connected to flat conductors insulated in a carrier material, which are guided in an arc from the moving carrier to a fixed plug contact. The arcs of the individual conductors unpredictably allow movement across the flat conductor cross section due to the arc in continuous operation. The desired arch shape is easily derived from the low bending resistance of the conductors with a flat cross-section.

Eine angestrebte verbesserte Leiterführung, die Übersichtlichkeit des Leitersystems, ferner die Haltbarkeit im Dauerbetrieb, Abknickstellen, Austausch u.dgl. lassen sich dadurch vereinfachen, dass die flachen, isolierten Leiter eine geringe Dicke aufweisen und einzeln zu einer gemeinsamen Halterung geführt sind und dass im Verlauf hinter einer weiteren Halterung die flachen, isolierten Leiter zu einem Flachbandkabel zusammengeführt und im weiteren Verlauf einzelne Gruppen von Leitern gebildet sind, die einen Stekker aufweisen.A desired improved conductor routing, the clarity of the conductor system, also the durability in continuous operation, kinking, replacement and the like. can be simplified in that the flat, insulated conductors have a small thickness and are individually guided to a common holder and that in the course behind a further holder the flat, insulated conductors are brought together to form a ribbon cable and in the further course individual groups of conductors are formed which have a plug.

Die Kabelanschlüsse im unmittelbaren Bereich der Elektromagnete können ausserdem wirtschaftlich verlegt werden, indem die einzelnen flachen, isolierten Leiter in der unmittelbaren Nähe der Elektromagnetspule mittels eines Haltestreifens befestigt sind. Ein solcher Haltestreifen wirkt hier wie eine Zugentlastung gegenüber den Lötstellen der Anschlüsse für die Elektromagnete.The cable connections in the immediate area of the electromagnets can also be laid economically by fastening the individual flat, insulated conductors in the immediate vicinity of the electromagnetic coil by means of a holding strip. Such a holding strip acts here as a strain relief compared to the soldering points of the connections for the electromagnets.

Die Befestigung des Haltestreifens selbst erfolgt nach einem weiteren Merkmal dadurch, dass der Haltestreifen aus einem Klebestreifen besteht.According to a further feature, the holding strip itself is attached in that the holding strip consists of an adhesive strip.

Handhabung, Verlegung, Berührung mit Drukkerteilen u.dgl. lassen sich ferner dahingehend berücksichtigen, indem das Flachbandkabel an den Übergängen des Bogens von einer Leiterrichtung in eine andere Leiterrichtung beidseitig mit den flexiblen Halterungen versehen ist.Handling, laying, contact with printer parts and the like. can also be taken into account in that the ribbon cable is provided on both sides with the flexible holders at the transitions of the arc from one conductor direction to another conductor direction.

Der Grundgedanke des Fiachbandkabefsfür den Druckkopf (Träger mit Elektromagneten und Druckelementen) des Druckers kann auch derart angewendet werden, dass für zusätzliche elektrische Einrichtungen, wie z. B. Sensoren, weitere flache Leiter an dem Flachbandkabel vorgesehen sind.The basic idea of the Fiachbandkabefs for the print head (carrier with electromagnets and pressure elements) of the printer can also be applied in such a way that for additional electrical devices, such as. B. sensors, further flat conductors are provided on the ribbon cable.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt und wird im folgenden näher erläutert. Es zeigen:

  • Fig. 1 einen Querschnitt des Trägers für die Druckelemente;
  • Fig. 2 eine Ansicht des Trägers für die Druckelemente mit Blickrichtung auf die Aussenseite des winkelförmigen Profilstabs;
  • Fig. 3 einen stark vergrösserten Querschnitt durch den Montagestreifen;
  • Fig. 4 eine Draufsicht auf das Flachbandkabel und
  • Fig. 5 eine Seitenansicht oder einen Schnitt V-V zu dem Flachbandkabel gemäss Fig. 4.
In the drawing, an embodiment of the invention is shown schematically and is explained in more detail below. Show it:
  • 1 shows a cross section of the support for the pressure elements.
  • Figure 2 is a view of the support for the pressure elements looking towards the outside of the angular profile bar.
  • 3 shows a greatly enlarged cross section through the assembly strip;
  • Fig. 4 is a plan view of the ribbon cable and
  • 5 shows a side view or a section VV to the ribbon cable according to FIG. 4.

Der in den Fig. 1 bis 3 dargestellte Matrixdrucker ist als Matrixzeilendrucker gestaltet. Von dem Matrixzeilendrucker ist der Einfachheit halber nur der Träger 1 mit den Druckelementen 2, d. h. mit besonders kurzen Drucknadeln, und den Kabelanschlüssen 3 für die Elektromagnete 4 gezeichnet. Der Pendelantrieb selbst ist in Fig. 1 nur angedeutet. Der Pendelweg 1a des Trägers 1 beträgt z. B. nach beiden Seiten ca. 6,5 mm, so dass zumindest ein Schriftzeichen in Matrixschreibweise in voller Breite überstrichen wird.The matrix printer shown in FIGS. 1 to 3 is designed as a matrix line printer. For the sake of simplicity, only the carrier 1 with the printing elements 2, ie. H. drawn with particularly short pressure needles, and the cable connections 3 for the electromagnets 4. The pendulum drive itself is only indicated in Fig. 1. The pendulum travel 1a of the carrier 1 is z. B. on both sides about 6.5 mm, so that at least one character in matrix notation is covered in full width.

Die Elektromagnete 4 sind in der Bauweise eines Tauchspulenkernmagnets ausgeführt, so dass die Druckelemente 2 stets in einer rückwärtigen Position gehalten werden oder nach Betätigung des Elektromagneten 4 in eine vordere Druckposition abgeschossen werden. Anstelle der Drucknadeln können als Druckelemente 2 auch Druckhämmer mit Druckspitzen eingesetzt werden, wobei solche Druckhämmer als federnde Streifen nach dem Prinzip der gespeicherten Energie mittels eines Dauermagneten und für den Abschuss des Druckhammers mittels eines das Magnetfeld des Dauermagneten aufhebenden Elektromagneten ausgeführt sein können.The electromagnets 4 are constructed in the manner of a moving core magnet, so that the pressure elements 2 are always held in a rearward position or are fired into a front printing position after actuation of the electromagnet 4. Instead of the pressure needles, pressure hammers with pressure peaks can also be used as pressure elements 2, such pressure hammers being able to be designed as resilient strips according to the principle of stored energy by means of a permanent magnet and for firing the pressure hammer by means of an electromagnet canceling the magnetic field of the permanent magnet.

Die Elektromagnete 4 sind mit den Kabelanschlüssen 3 an eine weiter nicht dargestellte Schaltlogik (Ansteuerung) und an einen Zeichengenerator angeschlossen. Der Matrixdrucker ist hierfür mit entsprechenden Schnittstellen zum Anschluss an die jeweils gewünschte Datenverarbeitungsanlage ausgestattet.The electromagnets 4 are connected with the cable connections 3 to a switching logic (control) (not shown) and to a character generator. For this purpose, the matrix printer is equipped with appropriate interfaces for connection to the desired data processing system.

Der pendelnd bewegte Träger 1 ist aus einem Leichtwerkstoff, wie z.B. aus einer Aluminiumlegierung hergestellt, und bildet in seiner Grundform einen Profilstab 5 in Form eines Winkelprofilstückes mit einem etwa aufrechtstehenden Schenkel 9 und einem im wesentlichen waagerechten Schenkel 10. Der Träger 1 kann selbstverständlich auch als Gussstück aus einer leichten Legierung oder aus Kunststoff hergestellt sein. Der Träger 1 liegt im montierten Zustand der Schreibwalze 6 (als Druckwiderlager) bzw. dem auf der Schreibwalze 6 aufliegenden und schrittweise oder kontinuierlich bewegten Aufzeichnungsträger 7 bzw. dem Farbband 7a gegenüber (Fig. 1 und 2). Der Schreibwalze 6 abgewandt bildet der Profilstab 5 einen hinteren, nach oben und hinten offenen Innenraum 8, der durch Seitenwände 8a und 8b begrenzt ist. Für die Elektromagnete 4 ist die etwa aufrechtstehende Profilstabwandung 9 (Fig. 3) und für die horizontale Führungsbasis der horizontale Schenkel 10 vorgesehen. Die Profilstabwandung 9 weist eine in Längsrichtung verlaufende Rippe 11 auf, um die Bohrungen 12 für die Beabstandung und Ausrichtung der Elektromagnete 4 bzw. deren Drucknadeln anzuordnen. Die Elektromagnete 4 besitzen einen Führungsschaft 13, der mit Gewinde versehen ist. In die Rippe 11 ist ein Befestigungsmittel 14, das hier aus einem Gewindering besteht, von der Seite des Aufzeichnungsträgers 7 bzw. von der Schreibwalze 6 her eingelassen und von dort auch zugänglich.The oscillating carrier 1 is made of a light material, such as Made of an aluminum alloy, and forms in its basic form a profile rod 5 in the form of an angle profile piece with an approximately upright leg 9 and an essentially horizontal leg 10. The carrier 1 can of course also be made as a casting from a light alloy or plastic. The carrier 1 lies in the assembled state of the platen roller 6 (as a pressure abutment) or the recording medium 7 lying on the platen roller 6 and moving in steps or continuously or the ink ribbon 7a (FIGS. 1 and 2). Averted from the platen roller 6, the profile bar 5 forms a rear interior space 8 which is open at the top and rear and is delimited by side walls 8a and 8b. The approximately upright profile rod wall 9 (FIG. 3) is provided for the electromagnets 4 and the horizontal leg 10 for the horizontal guide base. The profile rod wall 9 has a rib 11 running in the longitudinal direction in order to arrange the bores 12 for the spacing and alignment of the electromagnets 4 or their pressure needles. The electromagnets 4 have a guide shaft 13 which is threaded. A fastening means 14, which here consists of a threaded ring, is inserted into the rib 11 from the side of the recording medium 7 or from the platen roller 6 and is also accessible from there.

Die Profilstabwandung 9 verläuft nach oben leicht geneigt, um einen freien Einblick in den Schreibspalt zu ermöglichen. Am Träger 1 befinden sich mehrere, dem Pendelweg 1a des TrägersThe profile bar wall 9 is slightly inclined upwards to allow a clear view of the To allow writing gap. There are several on the carrier 1, the pendulum path 1a of the carrier

1 angemessene Führungsvorsprünge 15a, 15b und 15c, die an ortsfesten, drehbar am Druckerchassis 16 gelagerten Rollen 17 anliegen. Die Führungsvorsprünge 15a, 15b, 15c bestehen aus gehärteten Profilstücken 15d, um in glatten oder profilierten Rollen 17 eine möglichst spielfreie und verschleissarme Führung zu gewährleisten. Die Rollen 17 können bei Montage oder nach einem unvermeidlichen Verschleiss einzeln nachgestellt werden. Hierzu dient eine Lagerung mit einer Exzentrizität 17a.1 appropriate guide projections 15a, 15b and 15c, which rest against fixed rollers 17 which are rotatably mounted on the printer chassis 16. The guide projections 15a, 15b, 15c consist of hardened profile pieces 15d in order to ensure guidance that is as free of play and wear-free as possible in smooth or profiled rollers 17. The rollers 17 can be readjusted individually during assembly or after unavoidable wear. A bearing with an eccentricity 17a serves this purpose.

Die Elektromagnete 4 weisen Kabelanschlüsse 3 im Innenraum 8 auf, so dass von z. B. 33 Elektromagneten 66 Kabelanschlüsse alleine für die Elektromagnete auf dem Träger 1 aus dem Innenraum 8 heraus zu den ortsfesten Kontakten der Elektronikschaltung geführt werden müssen. Zu diesem Zweck (Fig. 1 bis 4) weist jeder Elektromagnet 4 im Querschnitt flache, sehr dünne Leiter 18 und 19 auf, die zunächst an den Kontakten der jeweiligen Elektromagnetspule verlötet sind und bis zur Oberseite des horizontalen Schenkels 10 bzw. zur Profilstabwandung 9 verlaufen und dort mittels eines Haltestreifens 20 befestigt sind (Fig. 3). Von dieser Befestigung verlaufen die parallel nebeneinander angeordneten Leiter 18 und 19 jeweils in einem Bogen 21 zu einer Kontaktmuffe 18a der Elektronikschaltung.The electromagnets 4 have cable connections 3 in the interior 8, so that z. B. 33 electromagnets 66 cable connections for the electromagnets on the carrier 1 from the interior 8 to the stationary contacts of the electronic circuit must be performed. For this purpose (FIGS. 1 to 4), each electromagnet 4 has flat, very thin conductors 18 and 19 in cross section, which are first soldered to the contacts of the respective electromagnetic coil and extend to the top of the horizontal leg 10 or to the profile bar wall 9 and are fastened there by means of a holding strip 20 (FIG. 3). From this fastening, the conductors 18 and 19 arranged in parallel next to one another each run in an arc 21 to a contact sleeve 18a of the electronic circuit.

Wie Fig. 5 zeigt, weisen die flachen, in einem transparenten, isolierenden Trägermaterial eingehüllten Leiter 18 und 19 jeweils eine minimale Dicke 22 auf. Sie sind zu Paaren 23 bis zu einer Halterung 24 geführt (Fig. 1 und 4), verlaufen danach wieder einzeln oder in Gruppen zu einer weiteren Halterung 25 an einer Kabelhalterung 16a und bilden anschliessend ein einziges Flachbandkabel 26, das einzelne Gruppen 27 von Leitern aufweist, die jeweils in einem Stecker 28 enden. Diese Stecker 28 sind in die zugehörigen Kontaktmuffen 18a der ortsfesten Elektronikschaltung eingeführt. Die beschriebene Leiterführung ist in der Lage (Fig. 2), nach links und rechts die beschriebenen Pendelbewegungen von z.B. 6,5mm auszuführen, ohne dass im Dauerbetrieb Schäden auftreten.As FIG. 5 shows, the flat conductors 18 and 19 encased in a transparent, insulating carrier material each have a minimum thickness 22. They are guided in pairs 23 to a holder 24 (FIGS. 1 and 4), then again run individually or in groups to a further holder 25 on a cable holder 16a and then form a single ribbon cable 26 which has individual groups 27 of conductors , each ending in a connector 28. These plugs 28 are inserted into the associated contact sleeves 18a of the fixed electronic circuit. The conductor guide described is able (Fig. 2) to the left and right the described pendulum movements of e.g. 6.5mm without causing damage in continuous operation.

Die einzelnen flachen, isolierten Leiter 18, 19 sind oberhalb (oder unterhalb) der Elektromagnetspulen 4 mittels des Haltestreifens 20 befestigt, der aus einem einfachen isolierenden Klebestreifen 30 besteht. Das Flachbandkabel 26 ist an den Übergängen 29 des Bogens 21 von einer Leiterrichtung in eine andere Leiterrichtung beidseitig (Fig. 5) mit den Halterungen 24 versehen.The individual flat, insulated conductors 18, 19 are fastened above (or below) the electromagnetic coils 4 by means of the holding strip 20, which consists of a simple insulating adhesive strip 30. The ribbon cable 26 is provided on both sides (FIG. 5) with the brackets 24 at the transitions 29 of the arc 21 from one conductor direction to another conductor direction.

Die Leiterführung nach den Fig. 4 und 5 ist besonders geeignet, für zusätzliche elektrische Einrichtungen 31, wie z.B. für Sensoren u.dgl. weitere flache Leiter 32, 33, 34 hinzuzufügen.4 and 5 is particularly suitable for additional electrical devices 31, such as for sensors and the like add more flat conductors 32, 33, 34.

So ist der Masseanschluss 35 an das Druckerchassis 16 geführt und die Leiter 32 sind zu einem besonderen Stecker 36 verlegt. In der Herstellung ist eine solche Leiterführung ein einziges Stück, dessen Leiter allseitig isoliert sind. Lediglich die Leiterenden an den Leitern 18 und 19 sowie die Kontaktstifte 37 liegen frei.So the ground connection 35 is led to the printer chassis 16 and the conductors 32 are laid to a special connector 36. In manufacture, such a conductor guide is a single piece, the conductors of which are insulated on all sides. Only the conductor ends on the conductors 18 and 19 and the contact pins 37 are exposed.

Claims (10)

1. A matrix printer, in particular matrix line printer, with a holder (1) for the printing elements (2) which can be set into reciprocating motion, the driving means for the printing elements (2) comprising electromagnets (4) with cable connections (3) which are composed of flexible strips and are connected to a character generator via a control logic unit, and the reciprocating holder (1) for the printing elements (2) is composed of an approximately angled profile bar (5), the electromagnets (4) being fixed in an approximately vertical profile bar wall (9), characterized in that the profile bar (5) is composed of a simple angled profile piece, i.e. possesses an approximately vertical arm (9) which faces the recording medium (7) and the platen (6), and a substantially horizontal arm (10), in that the fixing means (14) for the electromagnets (4) are admitted and are accessible from the side with the recording medium (7) and the platen (6) into the approximately vertical arm (9) of the angled profile piece (5) and in that the electromagnets (4) are arranged in the interior (8), which is open upwardly and at the rear, of the interior of the angled profile piece defined by its two arms (9 and 10) and are introduced with a guide shaft (13) into the arm (9).
2. A matrix printer according to claim 1, characterized in that guide projections (15a, 15b, 15c) are provided on the holder (1) in parallel with the row of printing elements (2) located in the rest position or in the printing position, said guide projections (15a, 15b, 15c) resting on rollers (17) mounted stationarily on the printer frame (16).
3. A matrix printer according to claims 1 and 2, characterized in that the rollers (17) mounted stationarily on the printer frame (16) are individually adjustable.
4. A matrix printer according to claims 1 to 3, characterized in that each of the electromagnets (4) on the cable connections (3) for the electromagnetic coils is connected to flat conductors (18, 19) which are insulated in a carrier material and are guided in an arc (21) from the moving holder (1) to a fixed plug contact.
5. A matrix printer according to claims 1 to 4, characterized in that the flat insulated conductors (18, 19) have a smaller thickness (22) and are guided individually to a common mounting (24) and in that, in the course behind a further mounting (25), the flat insulated conductors (18, 19) are combined to form a ribbon cable (26) and, in their continued course, individual groups (27) of conductors having a connector (28) are formed.
6. A matrix printer according to claims 1 to 5, characterized in that the individual flat insulated conductors (18, 19) are fixed in the immediate vicinity of the electromagnetic coil (4) by means of a holding strip (20).
7. A matrix printer according to claims 5 and 6, characterized in that the holding strip (20) is composed of an adhesive tape (30).
8. A matrix printer according to claims 4 to 7, characterized in that the ribbon cable (26) is provided on both sides with the flexible mountings
(24) at the transitions of the arc (21) from one conductor direction into another conductor direction.
9. A matrix printer according to claims 4 to 8, characterized in that further flat conductors (32, 33, 34) for additional electrical devices (31), for example sensors, are provided on the ribbon cable (26).
EP84111106A 1984-09-18 1984-09-18 Matrix printer, in particular a matrix line printer Expired EP0175009B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT84111106T ATE36137T1 (en) 1984-09-18 1984-09-18 MATRIX PRINTERS, ESPECIALLY MATRIX LINE PRINTERS.
EP84111106A EP0175009B1 (en) 1984-09-18 1984-09-18 Matrix printer, in particular a matrix line printer
DE8484111106T DE3473132D1 (en) 1984-09-18 1984-09-18 Matrix printer, in particular a matrix line printer
US06/777,538 US4727805A (en) 1984-09-18 1985-09-18 Shuttle for matrix printers
JP60204582A JPS6174853A (en) 1984-09-18 1985-09-18 Matrix printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84111106A EP0175009B1 (en) 1984-09-18 1984-09-18 Matrix printer, in particular a matrix line printer

Publications (2)

Publication Number Publication Date
EP0175009A1 EP0175009A1 (en) 1986-03-26
EP0175009B1 true EP0175009B1 (en) 1988-08-03

Family

ID=8192158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111106A Expired EP0175009B1 (en) 1984-09-18 1984-09-18 Matrix printer, in particular a matrix line printer

Country Status (5)

Country Link
US (1) US4727805A (en)
EP (1) EP0175009B1 (en)
JP (1) JPS6174853A (en)
AT (1) ATE36137T1 (en)
DE (1) DE3473132D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216946B1 (en) * 1985-09-28 1989-04-12 Mannesmann Tally Ges. mbH Matrix printer, in particular a matrix line printer
US5065169A (en) * 1988-03-21 1991-11-12 Hewlett-Packard Company Device to assure paper flatness and pen-to-paper spacing during printing
EP0334548B1 (en) * 1988-03-21 1993-12-22 Hewlett-Packard Company Device to assure paper flatness and pen-to-paper spacing during printing
DE8814238U1 (en) * 1988-11-14 1990-03-22 Siemens Nixdorf Informationssysteme AG, 33106 Paderborn Printing device
JPH02137967A (en) * 1988-11-18 1990-05-28 Seikosha Co Ltd Serial printer
DE68923861T2 (en) * 1988-12-30 1996-02-22 Canon Kk Ink jet recording device.
JPH02182641A (en) * 1988-12-30 1990-07-17 Canon Inc Image forming device
JP2001343803A (en) * 2000-06-01 2001-12-14 Canon Inc Image forming device

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Publication number Priority date Publication date Assignee Title
FR1360788A (en) * 1963-04-02 1964-05-15 Device for supplying electric current to mobile machinery
US3802544A (en) * 1972-04-28 1974-04-09 Centronics Data Computer High speed dot matrix printer
US4359289A (en) * 1979-11-20 1982-11-16 Printronix, Inc. Counterbalanced bidirectional shuttle drive having linear motor
US4425047A (en) * 1980-09-11 1984-01-10 Tokyo Electric Co., Ltd. Printing machine capable of printing characters on long and short paper sheets
JPS6222376Y2 (en) * 1980-09-25 1987-06-06
US4416560A (en) * 1981-10-16 1983-11-22 Printek, Inc. Computer printer carriage control apparatus including an encoding disk
US4402620A (en) * 1981-12-23 1983-09-06 International Business Machines Corp. Compact shuttle printer mechanism
JPS59138473A (en) * 1983-01-28 1984-08-08 Citizen Watch Co Ltd Impact type dot printing head

Also Published As

Publication number Publication date
JPS6174853A (en) 1986-04-17
US4727805A (en) 1988-03-01
ATE36137T1 (en) 1988-08-15
EP0175009A1 (en) 1986-03-26
DE3473132D1 (en) 1988-09-08

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