EP1469998B1 - Printer for a continuous paper web comprising a cutting device - Google Patents

Printer for a continuous paper web comprising a cutting device Download PDF

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Publication number
EP1469998B1
EP1469998B1 EP03702310A EP03702310A EP1469998B1 EP 1469998 B1 EP1469998 B1 EP 1469998B1 EP 03702310 A EP03702310 A EP 03702310A EP 03702310 A EP03702310 A EP 03702310A EP 1469998 B1 EP1469998 B1 EP 1469998B1
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EP
European Patent Office
Prior art keywords
chassis
knife
housing
blade
printing apparatus
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 - Fee Related
Application number
EP03702310A
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German (de)
French (fr)
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EP1469998A1 (en
Inventor
Günter Baitz
Wolfgang Malke
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.)
Wincor Nixdorf International GmbH
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Wincor Nixdorf International GmbH
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Publication of EP1469998A1 publication Critical patent/EP1469998A1/en
Application granted granted Critical
Publication of EP1469998B1 publication Critical patent/EP1469998B1/en
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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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/66—Applications of cutting devices
    • B41J11/70—Applications of cutting devices cutting perpendicular to the direction of paper feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/042—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material

Definitions

  • the invention relates to a printer according to the preamble of claim 1.
  • a printing device is attached to the document JP 2001121480 known.
  • Printers of the type mentioned, such as from the US Pat. No. 6,088,049 as Clam Shell refers to printers.
  • Printers of this type are characterized by a split housing with a lower part and a pivotally mounted on this between a voltage applied to the lower part and a releasing a receptacle for a recording medium supply roll upper part.
  • the parting plane between the housing parts lies in the printing plane.
  • a clam shell printer which is equipped with a cutter comprising a fixed blade and an electromechanically displaceable knife for the recording medium.
  • the fixed knife is arranged in the pivotable upper part and the movable knife together with the knife drive in the fixed lower part.
  • the slidable knife can not return to its rest position at a jamming of the paper in the cutter. This has the consequence that the pivotable upper part of the housing can not be opened. The knife must then be manually brought by turning a not easily accessible knurled wheel in its rest position.
  • the object of the invention is to propose a cutting device for a printer of the type mentioned, in which a blocking of the pivotable housing part is avoided.
  • the printing device comprises a printer housing having a chassis lower part and a chassis upper part pivotably mounted thereon between an open-machine position resting against the chassis lower part.
  • the chassis upper part is divided into a front area and a rear area, the front area being parallel to a near the upper front edge of the printer housing and parallel to this first pivot axis and the rear area to a near the upper trailing edge of the printer housing can be pivoted to this extending second pivot axis.
  • an output slot for a recording medium is formed, on which the cutting device is arranged, wherein in the front region of the chassis upper part, the lower blade is fixed and slidably mounted in the rear of the chassis upper part, the upper blade and a displacement drive for the upper blade is arranged.
  • the rear portion of the chassis upper part can be pivoted to the rear and the front area to the front.
  • the two knives are also pivoted apart, so that the deadlock is lifted by itself.
  • the upper blade has a V-shaped or opposite the lower blade inclined edge. This results during the cutting process always only a punctiform separation point.
  • the displacement drive is considered one of a knife motor driven threaded spindle drive is formed, wherein a spindle nut is arranged on the upper blade.
  • a simple reduction gear so that the cutting speed and applied by the blade motor force is determined by the pitch of the threaded spindle.
  • the feed width of the upper blade can be determined over the energization time of the blade motor, so that it is easily possible when using a V-shaped or oblique cutting edge, either selectively on or cut off the recording medium.
  • the design of the displacement drive as driven by a motor threaded spindle drive has the further advantage that at a deadlock can first be attempted to withdraw the upper blade with the force of the knife motor and only if this fails to generate a fault message.
  • Fig. 1 shows a printing device 10 in the closed state in a schematic sectional side view.
  • the printing device 10 is surrounded by a housing designated overall by 12, which consists of a bottom tray 14, a lower housing part 16 and an upper housing part 18, which latter in a front portion 20 and a rear portion 22 is divided.
  • the front region 20 is pivotable about a first pivot axis 26 extending parallel to the upper front edge 24 of the housing 12 and the rear region 22 about a second pivot axis 30 running parallel to the upper trailing edge 28 of the housing 12.
  • the front region 20 lies in its in Fig. 1 shown heruntergeschwenkten position fed on the lower housing part 16 and is held by the downwardly swung-rear portion 22 of the upper housing part 18 in this position accurately.
  • the lower housing part 16 encloses a chassis lower part 34 and the rear region 22 of the upper housing part 18 a chassis upper part 36.
  • the latter is hinged to the chassis lower part 34.
  • On the chassis upper part 36 of the rear portion 22 of the upper housing part 18 is latched and thus pivotable together with this about the second pivot axis 30.
  • the chassis upper part 36 with the force of an opening spring 32 in the opening direction ( Fig. 3 ).
  • a cross-sectionally part-cylindrical upwardly open trough 38 which serves as a receptacle for a recording medium supply roll 42, and its cylinder axis 40 horizontal and perpendicular to a leading from the trough 38 to the discharge slot 23 record carrier Transport track 44 is aligned.
  • a smoothly rotatable support roller 46 is provided on both sides of the trough base, the axis of which runs parallel to the cylinder axis 40.
  • the transport device 48 comprises a transport roller 56 which has at least the width of the recording medium 54. It is mounted in the chassis upper part 36 and drive-connected via a gear 58 with a likewise arranged in the chassis upper part 36 feed motor 60.
  • the printing station 50 is equipped with a dot matrix print head 62 which is mounted on a carrier 64.
  • the carrier 64 is displaceable on a carrier guide symbolically represented by a guide rod 66 with the aid of a carrier motor 68 along a platen 70 and at a predetermined distance parallel thereto.
  • the dot-matrix print head 62 is associated with a stationary, but interchangeable ribbon cassette 72, which is placed on a ribbon recording, not shown.
  • the dot matrix print head 62, the carrier 64, the carrier guide, the carrier motor 68, and the ribbon take-up are disposed in the chassis bottom 34 and the platen 70 in the chassis top 36.
  • an output slot 23 for a record carrier 54 is formed between the two areas of the chassis upper part.
  • the cutter 52 is disposed directly on the discharge slot 23. It consists of a mounted in the front portion 20 of the upper housing part 18 on a knife holder 73 fixed lower blade 74 and a movable upper blade 76, which latter is displaceable by means of a knife motor 78 in the direction of the lower blade 74.
  • the motor shaft continues in a threaded spindle 80 which engages with a spindle nut 82 attached to the upper blade 76.
  • the upper blade 76 and the blade motor 78 are arranged in the rear portion 22 of the upper housing part 18 on the chassis upper part 36.
  • the upper blade 76 In one direction of rotation of the knife motor 78, the upper blade 76 is moved against the lower blade 74 in the position shown in broken lines 76 'and brought in the opposite direction of rotation in the rest position shown by solid lines.
  • the upper blade 76 has a V-shaped or opposite the lower blade 74 inclined edge. This results during the cutting process always only a punctiform separation point.
  • the feed width of the upper blade 76 can be determined over the energization duration of the blade motor 78, so that it is easily possible when using a V-shaped or oblique blade to selectively cut or to cut off the record carrier 54. Cutting devices of this type are known per se, for which reason a description of the mode of operation is dispensed with.
  • a locking pin 84 perpendicular to the outside.
  • position of the chassis upper part 36 engages the locking pin 84 in a claw 86, which is incorporated in an edge of a pivotable about a pivot pin 84 latching lever 86.
  • the locking lever 90 tapers to an insertion bevel 92 for the locking pin 84.
  • the locking lever 90 is acted upon in the direction of its locking position shown by solid lines with the force of a locking spring 94.
  • the one end of a Entriegelungsschiebers 96 attacks, the other end ends in an inserted into the front wall of the lower housing part 16 actuating button 98.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handling Of Sheets (AREA)

Description

Die Erfindung betrifft einen Drucker nach dem Oberbegriff des Anspruchs 1. Eine solche Druckvorrichtung ist ans dem Dokument JP 2001121480 bekannt.The invention relates to a printer according to the preamble of claim 1. Such a printing device is attached to the document JP 2001121480 known.

Drucker der genannten Art werden, wie beispielsweise aus der US 6 088 049 A hervorgeht, als Clam Shell Drucker bezeichnet. Drucker dieses Typs sind gekennzeichnet durch ein geteiltes Gehäuse mit einem Unterteil und einem an diesem zwischen einer an dem Unterteil anliegenden und einer eine Aufnahme für eine Aufzeichnungsträger-Vorratsrolle freigebenden Stellung schwenkbar gelagertes Oberteil. Die Trennebene zwischen den Gehäuseteilen liegt dabei in der Druckebene.Printers of the type mentioned, such as from the US Pat. No. 6,088,049 as Clam Shell refers to printers. Printers of this type are characterized by a split housing with a lower part and a pivotally mounted on this between a voltage applied to the lower part and a releasing a receptacle for a recording medium supply roll upper part. The parting plane between the housing parts lies in the printing plane.

Es ist auch ein Clam Shell Drucker bekannt, der mit einer ein feststehendes Messer und ein elektromechanisch verschiebliches Messer umfassenden Abschneidevorrichtung für den Aufzeichnungsträger ausgestattet ist. Das feststehende Messer ist in dem schwenkbaren Oberteil und das verschiebliche Messer samt dem Messerantrieb in dem feststehenden Unterteil angeordnet. Bei diesem Drucker kann das verschiebliche Messer bei einer Verklemmung des Papiers in der Abschneidevorrichtung nicht in seine Ruhestellung zurückkehren. Das hat zur Folge, dass sich das schwenkbare Oberteil des Gehäuses nicht öffnen lässt. Das Messer muss dann manuell durch Drehen eines nicht ohne weiteres erreichbaren Rändelrades in seine Ruhestellung gebracht werden.It is also known a clam shell printer, which is equipped with a cutter comprising a fixed blade and an electromechanically displaceable knife for the recording medium. The fixed knife is arranged in the pivotable upper part and the movable knife together with the knife drive in the fixed lower part. In this printer, the slidable knife can not return to its rest position at a jamming of the paper in the cutter. This has the consequence that the pivotable upper part of the housing can not be opened. The knife must then be manually brought by turning a not easily accessible knurled wheel in its rest position.

Aufgabe der Erfindung ist es, eine Abschneidevorrichtung für einen Drucker der eingangs genannten Art vorzuschlagen, bei der eine Blockierung des schwenkbaren Gehäuseteils vermieden wird.The object of the invention is to propose a cutting device for a printer of the type mentioned, in which a blocking of the pivotable housing part is avoided.

Die Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.The object is solved by the features of claim 1.

Wie bereits dargelegt umfasst die Druckeinrichtung ein Druckergehäuse mit einem Chassis-Unterteil und ein an diesem zwischen einer an dem Chassis-Unterteil anliegenden und geöffneten Stellung schwenkbar gelagertes Chassis-Oberteil. Erfindungsgemäß ist das Chassis-Oberteil in einen vorderen Bereich und einen hinteren Bereich aufgeteilt ist, wobei der vordere Bereich um eine nahe der oberen Vorderkante des Druckergehäuses und parallel zur dieser verlaufende erste Schwenkachse und der hintere Bereich um eine nahe der oberen Hinterkante des Druckergehäuses und parallel zu dieser verlaufende zweite Schwenkachse schwenkbar ist. Zwischen den beiden Bereichen des Chassis-Oberteils ist ein Ausgabeschlitz für einen Aufzeichnungsträger ausgebildet, an dem die Abschneidevorrichtung angeordnet ist, wobei in dem vorderen Bereich des Chassis-Oberteils das Untermesser feststehend angeordnet ist und in dem hinteren Bereich des Chassis-Oberteils das Obermesser verschieblich gelagert sowie ein Verschiebeantrieb für das Obermesser angeordnet ist.As already stated, the printing device comprises a printer housing having a chassis lower part and a chassis upper part pivotably mounted thereon between an open-machine position resting against the chassis lower part. According to the invention, the chassis upper part is divided into a front area and a rear area, the front area being parallel to a near the upper front edge of the printer housing and parallel to this first pivot axis and the rear area to a near the upper trailing edge of the printer housing can be pivoted to this extending second pivot axis. Between the two areas of the chassis upper part, an output slot for a recording medium is formed, on which the cutting device is arranged, wherein in the front region of the chassis upper part, the lower blade is fixed and slidably mounted in the rear of the chassis upper part, the upper blade and a displacement drive for the upper blade is arranged.

Sollte es zu einer Verklemmung des Aufzeichnungsträgers in der Abschneidevorrichtung und damit zu einer Blockierung des Obermessers kommen, kann der hintere Bereich des Chassis-Oberteils nach hinten und der vorderen Bereich nach vorne geschwenkt werden. Die beiden Messer werden dabei ebenfalls auseinander geschwenkt, so dass die Verklemmung gleichsam von selbst aufgehoben wird.Should there be a jamming of the recording medium in the cutter and thus to a blockage of the upper knife, the rear portion of the chassis upper part can be pivoted to the rear and the front area to the front. The two knives are also pivoted apart, so that the deadlock is lifted by itself.

Vorzugsweise hat das Obermesser eine V-förmige oder gegenüber dem Untermesser schräg verlaufende Schneide. Dadurch ergibt sich während des Schneidvorganges stets nur eine punktförmige Trennstelle.Preferably, the upper blade has a V-shaped or opposite the lower blade inclined edge. This results during the cutting process always only a punctiform separation point.

Entsprechend einer bevorzugten Ausprägung der Erfindung ist der Verschiebeantrieb als ein von einem Messermotor angetriebener Gewindespindel-Antrieb ausgebildet ist, wobei eine Spindelmutter an dem Obermesser angeordnet ist. Dadurch ergibt sich ein einfaches Untersetzungsgetriebe, so dass die Schnittgeschwindigkeit und die von dem Messermotor aufzubringende Kraft von der Steigung der Gewindespindel mitbestimmt wird. Ferner kann über die Bestromungdauer des Messermotors die Vorschubweite des Obermessers bestimmt werden, so dass es bei Verwendung einer V-förmigen oder schräg verlaufende Schneide leicht möglich ist, den Aufzeichnungsträger wahlweise an- oder abzuschneiden. Die Ausbildung des Verschiebeantriebs als von einem Motor angetriebener Gewindespindel-Antrieb hat den weiteren Vorteil, dass bei einer Verklemmung zunächst versucht werden kann, das Obermesser mit der Kraft des Messermotors zurückzuziehen und erst wenn dies nicht gelingt eine Störungsmeldung zu erzeugen.According to a preferred embodiment of the invention, the displacement drive is considered one of a knife motor driven threaded spindle drive is formed, wherein a spindle nut is arranged on the upper blade. This results in a simple reduction gear, so that the cutting speed and applied by the blade motor force is determined by the pitch of the threaded spindle. Furthermore, the feed width of the upper blade can be determined over the energization time of the blade motor, so that it is easily possible when using a V-shaped or oblique cutting edge, either selectively on or cut off the recording medium. The design of the displacement drive as driven by a motor threaded spindle drive has the further advantage that at a deadlock can first be attempted to withdraw the upper blade with the force of the knife motor and only if this fails to generate a fault message.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung eines Ausführungsbeispiels, welches an Hand der beigefügten Zeichnung erläutert wird. Es zeigt

Fig. 1
eine erfindungsgemäße Druckvorrichtung in geschlossenem Zustand in einer geschnittenen schematisierten Seitenansicht,
Fig. 2
die Druckvorrichtung aus Fig. 1 in geöffnetem Zustand in einer geschnittenen schematisierten Seitenansicht,
Fig. 3
einen vergrößerten Ausschnitt aus Fig. 1.
Further features and advantages of the invention will become apparent from the following description of an embodiment which will be explained with reference to the accompanying drawings. It shows
Fig. 1
a printing device according to the invention in the closed state in a sectional schematic side view,
Fig. 2
the printing device off Fig. 1 in an opened state in a cut schematized side view,
Fig. 3
an enlarged section Fig. 1 ,

Fig. 1 zeigt eine Druckvorrichtung 10 in geschlossenem Zustand in einer schematisierten geschnittenen Seitenansicht. Die Druckvorrichtung 10 ist von einem insgesamt mit 12 bezeichneten Gehäuse umschlossen, welches aus einer Bodenwanne 14, einem unteren Gehäuseteil 16 und einem oberen Gehäuseteil 18 besteht, welch letzteres in einen vorderen Bereich 20 und einen hinteren Bereich 22 unterteilt ist. Der vordere Bereich 20 ist um eine parallel zur oberen Vorderkante 24 des Gehäuses 12 verlaufende erste Schwenkachse 26 und der hintere Bereich 22 um eine parallel zur oberen Hinterkante 28 des Gehäuses 12 verlaufende zweite Schwenkachse 30 schwenkbar. Der vordere Bereich 20 liegt in seiner in Fig. 1 gezeigten heruntergeschwenkten Position satt auf dem unteren Gehäuseteil 16 auf und wird von dem heruntergeschwenkten hinteren Bereich 22 des oberen Gehäuseteils 18 in dieser Position passgenau gehalten. Zwischen dem vorderen Bereich 20 und dem hinteren Bereich 22 des oberen Gehäuseteils 18 ist ein Aufzeichnungsträger-Ausgabeschlitz 23 ausgebildet. Der untere Gehäuseteil 16 umschließt ein Chassis-Unterteil 34 und der hintere Bereich 22 des oberen Gehäuseteils 18 ein Chassis-Oberteil 36. Letzteres ist an das Chassis-Unterteil 34 angelenkt. Auf das Chassis-Oberteil 36 ist der hintere Bereich 22 des oberen Gehäuseteils 18 aufgerastet und mithin zusammen mit diesem um die zweite Schwenkachse 30 schwenkbar. Dabei ist das Chassis-Oberteil 36 mit der Kraft einer Öffnungsfeder 32 in Öffnungsrichtung (Fig. 3) beaufschlagt. Fig. 1 shows a printing device 10 in the closed state in a schematic sectional side view. The printing device 10 is surrounded by a housing designated overall by 12, which consists of a bottom tray 14, a lower housing part 16 and an upper housing part 18, which latter in a front portion 20 and a rear portion 22 is divided. The front region 20 is pivotable about a first pivot axis 26 extending parallel to the upper front edge 24 of the housing 12 and the rear region 22 about a second pivot axis 30 running parallel to the upper trailing edge 28 of the housing 12. The front region 20 lies in its in Fig. 1 shown heruntergeschwenkten position fed on the lower housing part 16 and is held by the downwardly swung-rear portion 22 of the upper housing part 18 in this position accurately. Between the front portion 20 and the rear portion 22 of the upper case 18, a recording medium discharge slot 23 is formed. The lower housing part 16 encloses a chassis lower part 34 and the rear region 22 of the upper housing part 18 a chassis upper part 36. The latter is hinged to the chassis lower part 34. On the chassis upper part 36 of the rear portion 22 of the upper housing part 18 is latched and thus pivotable together with this about the second pivot axis 30. In this case, the chassis upper part 36 with the force of an opening spring 32 in the opening direction ( Fig. 3 ).

Im hinteren Bereich des Chassis-Unterteils 34 ist eine im Querschnitt teilzylindrische nach oben offene Mulde 38 angeordnet, die als Aufnahme für eine Aufzeichnungsträger-Vorratsrolle 42 dient, und deren Zylinderachse 40 horizontal und senkrecht zu einer von der Mulde 38 zu dem Ausgabeschlitz 23 führenden Aufzeichnungsträger-Transportbahn 44 ausgerichtet ist. In dem unteren Bereich der Mulde 38 ist zu beiden Seiten des Muldengrundes eine leichtgängig drehbare Tragrolle 46 vorgesehen, deren Achse parallel zu der Zylinderachse 40 verläuft.In the rear region of the chassis lower part 34 is arranged a cross-sectionally part-cylindrical upwardly open trough 38, which serves as a receptacle for a recording medium supply roll 42, and its cylinder axis 40 horizontal and perpendicular to a leading from the trough 38 to the discharge slot 23 record carrier Transport track 44 is aligned. In the lower region of the trough 38 a smoothly rotatable support roller 46 is provided on both sides of the trough base, the axis of which runs parallel to the cylinder axis 40.

An der Aufzeichnungsträger-Transportbahn 44 sind nacheinander -ausgehend von der Mulde 38- eine Transportvorrichtung 48, eine Druckstation 50 und eine Abschneidevorrichtung 52 angeordnet.On the recording medium transport path 44 are successively -ausgehend from the trough 38- a transport device 48, a printing station 50 and a cutter 52 arranged.

Die Transportvorrichtung 48 umfasst eine Transportwalze 56, die wenigstens die Breite des Aufzeichnungsträgers 54 hat. Sie ist in dem Chassis-Oberteil 36 gelagert und über ein Getriebe 58 mit einem ebenfalls in dem Chassis-Oberteil 36 angeordneten Vorschubmotor 60 antriebsverbunden.The transport device 48 comprises a transport roller 56 which has at least the width of the recording medium 54. It is mounted in the chassis upper part 36 and drive-connected via a gear 58 with a likewise arranged in the chassis upper part 36 feed motor 60.

Die Druckstation 50 ist mit einem Nadeldruckkopf 62 ausgestattet, welcher auf einem Carrier 64 befestigt ist. Der Carrier 64 ist auf einer symbolisch durch eine Führungsstange 66 dargestellten Carrierführung mit Hilfe eines Carriermotors 68 entlang eines Druckgegenlagers 70 und mit einem vorgegebenen Abstand parallel zu diesem verschiebbar. Dem Nadeldruckkopf 62 ist eine ortsfeste, aber auswechselbare Farbbandkassette 72 zugeordnet, welche auf eine nicht dargestellte Farbbandaufnahme aufgesetzt ist. Der Nadeldruckkopf 62, der Carrier 64, die Carrierführung, der Carriermotor 68 und die Farbbandaufnahme sind in dem Chassis-Unterteil 34 und das Druckgegenlager 70 in dem Chassis-Oberteil 36 angeordnet.The printing station 50 is equipped with a dot matrix print head 62 which is mounted on a carrier 64. The carrier 64 is displaceable on a carrier guide symbolically represented by a guide rod 66 with the aid of a carrier motor 68 along a platen 70 and at a predetermined distance parallel thereto. The dot-matrix print head 62 is associated with a stationary, but interchangeable ribbon cassette 72, which is placed on a ribbon recording, not shown. The dot matrix print head 62, the carrier 64, the carrier guide, the carrier motor 68, and the ribbon take-up are disposed in the chassis bottom 34 and the platen 70 in the chassis top 36.

Zwischen den beiden Bereichen des Chassis-Oberteils ist ein Ausgabeschlitz 23 für einen Aufzeichnungsträger 54 ausgebildet. Die Abschneidevorrichtung 52 ist unmittelbar an dem Ausgabeschlitz 23 angeordnet. Sie besteht aus einem in dem vorderen Bereich 20 des oberen Gehäuseteils 18 an einer Messerhalterung 73 angebrachten feststehenden Untermesser 74 und einem beweglichen Obermesser 76, welch letzteres mit Hilfe eines Messermotors 78 in Richtung des Untermessers 74 verschieblich ist. Dazu setzt sich die Motorwelle in einer Gewindespindel 80 fort, welche mit einer an dem Obermesser 76 angebrachten Spindelmutter 82 im Eingriff ist. Das Obermesser 76 und der Messermotor 78 sind in dem hinteren Bereich 22 des oberen Gehäuseteils 18 an dem Chassis-Oberteil 36 angeordnet.Between the two areas of the chassis upper part, an output slot 23 for a record carrier 54 is formed. The cutter 52 is disposed directly on the discharge slot 23. It consists of a mounted in the front portion 20 of the upper housing part 18 on a knife holder 73 fixed lower blade 74 and a movable upper blade 76, which latter is displaceable by means of a knife motor 78 in the direction of the lower blade 74. For this purpose, the motor shaft continues in a threaded spindle 80 which engages with a spindle nut 82 attached to the upper blade 76. The upper blade 76 and the blade motor 78 are arranged in the rear portion 22 of the upper housing part 18 on the chassis upper part 36.

In der einen Drehrichtung des Messermotors 78 wird das Obermesser 76 gegen das Untermesser 74 in die mit unterbrochenen Linien dargestellte Position 76' verstellt und in der entgegengesetzten Drehrichtung in die mit durchgezogenen Linien dargestellte Ruhestellung gebracht. Das Obermesser 76 hat eine V-förmige oder gegenüber dem Untermesser 74 schräg verlaufende Schneide. Dadurch ergibt sich während des Schneidvorganges stets nur eine punktförmige Trennstelle. Ferner ist über die Bestromungsdauer des Messermotors 78 die Vorschubweite des Obermessers 76 bestimmbar, so dass es bei Verwendung einer V-förmigen oder schräg verlaufende Schneide leicht möglich ist, den Aufzeichnungsträger 54 wahlweise an- oder abzuschneiden. Abschneidevorrichtungen dieser Art sind an sich bekannt, weshalb auf eine Beschreibung der Wirkungsweise verzichtet wird.In one direction of rotation of the knife motor 78, the upper blade 76 is moved against the lower blade 74 in the position shown in broken lines 76 'and brought in the opposite direction of rotation in the rest position shown by solid lines. The upper blade 76 has a V-shaped or opposite the lower blade 74 inclined edge. This results during the cutting process always only a punctiform separation point. Furthermore, the feed width of the upper blade 76 can be determined over the energization duration of the blade motor 78, so that it is easily possible when using a V-shaped or oblique blade to selectively cut or to cut off the record carrier 54. Cutting devices of this type are known per se, for which reason a description of the mode of operation is dispensed with.

Sollte es zu einer Verklemmung des Aufzeichnungsträgers 54 in der Abschneidevorrichtung 52 und damit zu einer Blockierung des Obermessers 76 kommen, kann der hintere Bereich 22 des oberen Gehäuseteils 18 zusammen mit dem Chassis-Oberteil 36 nach hinten und der vorderen Bereich 20 nach vorne geklappt werden. Die beiden Messer 74, 76 werden dabei ebenfalls auseinander geschwenkt, so dass die Verklemmung gleichsam von selbst aufgehoben wird.If there is a jamming of the recording medium 54 in the cutting device 52 and thus to block the upper blade 76, the rear portion 22 of the upper housing part 18 can be folded together with the chassis top 36 to the rear and the front portion 20 forward. The two blades 74, 76 are also pivoted apart, so that the deadlock is canceled as it were by itself.

Da der Gewindespindel-Antrieb in beiden Drehrichtungen des Messermotors 78 kraftschlüssig mit dem Obermesser 76 gekoppelt ist, kann bei einer Verklemmung zunächst versucht werden, das Obermesser 76 motorisch zurückzuziehen, und erst wenn dies nicht gelingt eine Störungsmeldung zu erzeugen, durch die eine Bedienperson aufgefordert werden kann, das Gehäuse 12 der Druckvorrichtung in der oben beschriebenen Weise zu öffnen.Since the threaded spindle drive is coupled non-positively in both directions of rotation of the knife motor 78 with the outer cutter 76, a jamming can initially attempt to retract the outer cutter 76 by a motor, and only if this fails to generate a fault message, by which an operator is requested can open the housing 12 of the printing device in the manner described above.

Von den Seitenwänden des Chassis-Oberteils 36 steht ein Riegelzapfen 84 senkrecht nach außen ab. In der in Fig. 1 gezeigten Stellung des Chassis-Oberteils 36 greift der Riegelzapfen 84 in eine Klaue 86 ein, welche in eine Flanke eines um einen Schwenkzapfen 84 schwenkbaren Rasthebels 86 eingearbeitet ist. Oberhalb der Klaue 86 verjüngt sich der Rasthebel 90 zu einer Einführschräge 92 für den Riegelzapfen 84. Der Rasthebel 90 ist in Richtung seiner mit durchgezogenen Linien dargestellten Verriegelungsstellung mit der Kraft einer Verriegelungsfeder 94 beaufschlagt. An der Flanke des Rasthebels 90, in die die Klaue 86 eingearbeitet ist, greift das eine Ende eines Entriegelungsschiebers 96 an, dessen anders Ende in einer in die Vorderwand des unteren Gehäuseteils 16 eingelassenen Betätigungstaste 98 endet.From the side walls of the chassis upper part 36 is a locking pin 84 perpendicular to the outside. In the in Fig. 1 shown position of the chassis upper part 36 engages the locking pin 84 in a claw 86, which is incorporated in an edge of a pivotable about a pivot pin 84 latching lever 86. Above the claw 86, the locking lever 90 tapers to an insertion bevel 92 for the locking pin 84. The locking lever 90 is acted upon in the direction of its locking position shown by solid lines with the force of a locking spring 94. On the flank of the detent lever 90, in which the claw 86 is incorporated, the one end of a Entriegelungsschiebers 96 attacks, the other end ends in an inserted into the front wall of the lower housing part 16 actuating button 98.

Die vorbeschriebene Ausbildung der Klaue 86 des Rasthebels 90 und die Anordnung des Riegelzapfens 84 wird bei geschlossenem Gehäuse 12 ein gleichbleibender Abstand zwischen beiden und eine Vorspannung des Obermessers 76 gegen das Untermesser 74 gewährleistet, so dass eine gleichbleibende Schnittwirkung sichergestellt ist. Die Aufrechterhaltung der Vorspannung des Obermessers 76 gegen das Untermesser 74 wird dabei durch die oben erwähnte passgenaue Halterung des vorderen Bereichs 20 des oberen Gehäuseteils 18 an dem unteren Gehäuseteil 16 sichergestellt.The above-described embodiment of the claw 86 of the locking lever 90 and the arrangement of the locking pin 84 is ensured with the housing 12 a constant distance between the two and a bias of the upper blade 76 against the lower blade 74, so that a constant cutting action is ensured. The maintenance of the bias of the upper blade 76 against the lower blade 74 is ensured by the above-mentioned snug fit support of the front portion 20 of the upper housing part 18 on the lower housing part 16.

Durch Drücken der Betätigungstaste 98 wird der Rasthebel 90 in seine strichpunktiert dargestellte Entriegelungsstellung gebracht und das Chassis-Oberteil 36 schwingt, angetrieben von der Öffnungsfeder 32, zusammen mit dem oberen Gehäuseteil 18 in die in Fig. 2 gezeigte Offenstellung. Dadurch werden zum einen die beiden Messer 74, 76 von einander getrennt und ein eventuell zwischen beiden eingeklemmter Aufzeichnungsträger wird freigegeben. Zum anderen wird die Mulde 38 zugänglich und eine Aufzeichnungsträgerzeichnungsträger-Vorratsrolle 42 kann in diese eingelegt werden. Das von letzterer ablaufende Ende des Aufzeichnungsträgers 54 wird in Richtung des Ausgabeschlitzes 23 geführt und dort festgehalten. Wird nun das Chassis-Oberteil 36 in seine in Fig. 1 dargestellte geschlossene Stellung gebracht, so greift die Transportwalze 56 an dem Aufzeichnungsträger 54 an. Gleichzeitig legt sich der Aufzeichnungsträger 54 an das Druckgegenlager 70.By pressing the actuating button 98 of the locking lever 90 is brought into its unlocked position shown in phantom and the chassis upper part 36 vibrates, driven by the opening spring 32, together with the upper housing part 18 in the in Fig. 2 shown open position. As a result, on the one hand, the two blades 74, 76 are separated from each other and a possibly between the two clamped recording medium is released. On the other hand, the trough 38 becomes accessible and a recording medium drawing supply roll 42 can be inserted in this. The expiring of the latter end of the recording medium 54 is guided in the direction of the discharge slot 23 and held there. Will now the chassis top 36 in his in Fig. 1 brought shown closed position, the transport roller 56 engages the recording medium 54 at. At the same time, the record carrier 54 attaches to the platen 70.

Claims (4)

  1. Printing apparatus (10) having a print head (62) and a print backing support (70) assigned to the said print head (62), comprising a printer housing (12), a chassis lower part (34) and a chassis upper part (36) which is mounted on the said chassis lower part (34) such that it can be pivoted between a position, in which it bears against the chassis lower part (34), and a position which releases a receptacle (38) for a recording-medium supply roller (42), having an electromechanically actuable cutting apparatus (52) which comprises a lower knife (74) and an upper knife (76), characterized in that the upper housing part (18) is divided into a front region (20) and a rear region (22), in that the front region (20) of the upper housing part (18) can be pivoted about a first pivoting axis (26) which is close to the upper front edge (24) of the printer housing (12) and extends parallel to the said upper front edge (24), and the rear region (22) can be pivoted together with the chassis upper part (36) about a second pivoting axis (30) which is close to the upper rear edge (28) of the printer housing (12) and extends parallel to the said upper rear edge (28), in that a dispensing slot (23) for a recording medium is formed between the two regions (20, 22) of the chassis upper part (36), at which dispensing slot (23) the cutting apparatus (52) is arranged, and in that the lower knife (74) is arranged fixedly in the front region (20) of the upper housing part (18), and the upper knife (76) is mounted displaceably in the chassis upper part (36) and a displacement drive (78, 80, 82) for the upper knife (76) is arranged in the said chassis upper part (36).
  2. Printing apparatus (10) according to Claim 1, the upper knife (76) of which has a V-shaped blade or a blade which extends obliquely with respect to the lower knife (74).
  3. Printing apparatus (10) according to Claim 1 or 2, the displacement drive of which comprises a threaded spindle (80) which is driven by a knife motor (78) and is in engagement with a spindle nut (82) which is arranged on the upper knife (76).
  4. Printing apparatus (10) according to one of the preceding claims, in which a locking journal (84) is arranged on the chassis upper part (36), a pivotable latching lever (90) which is loaded into a locking position with the force of a locking spring (94) is arranged on the chassis lower part (34), and a claw (86) is machined into a flank of the latching lever (90), the claw (86) and the locking journal (84) being configured and oriented with respect to one another in such a way that a prestress of the upper knife (76) with respect to the lower knife (74) is ensured when the housing (12) is closed.
EP03702310A 2002-01-28 2003-01-07 Printer for a continuous paper web comprising a cutting device Expired - Fee Related EP1469998B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10203402 2002-01-28
DE2002103402 DE10203402C1 (en) 2002-01-28 2002-01-28 Printer for a continuous paper web with a cutter
PCT/DE2003/000009 WO2003064163A1 (en) 2002-01-28 2003-01-07 Printer for a continuous paper web comprising a cutting device

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EP1469998A1 EP1469998A1 (en) 2004-10-27
EP1469998B1 true EP1469998B1 (en) 2008-08-20

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EP03702310A Expired - Fee Related EP1469998B1 (en) 2002-01-28 2003-01-07 Printer for a continuous paper web comprising a cutting device

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EP (1) EP1469998B1 (en)
DE (2) DE10203402C1 (en)
WO (1) WO2003064163A1 (en)

Cited By (2)

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US7936366B2 (en) 2006-03-06 2011-05-03 Bematech Industria E Comercio De Equipamentos Electronics S/A Thermal printer
US8425130B2 (en) 2006-03-06 2013-04-23 Bematech S.A. Printer with modular cartridge

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Publication number Priority date Publication date Assignee Title
DE10347342B4 (en) * 2003-10-11 2008-07-31 Wincor Nixdorf International Gmbh Printer with a reading device
JP5279471B2 (en) * 2008-12-04 2013-09-04 セイコーインスツル株式会社 Printer with cutter
CN102991147B (en) 2011-09-19 2015-04-22 深圳市证通电子股份有限公司 Printer and tool retracting mechanism thereof

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JPS60192668A (en) * 1984-03-14 1985-10-01 Toshiba Corp Image former
EP0684142B1 (en) * 1994-05-27 1999-09-01 Seiko Epson Corporation Cutting mechanism and printer using same
US5751330A (en) * 1995-05-30 1998-05-12 Intermec Corporation Printer for printing on media roll
JP3329174B2 (en) * 1996-02-29 2002-09-30 セイコーエプソン株式会社 Multifunctional printing device
DE19709941A1 (en) * 1997-03-11 1998-09-17 Siemens Nixdorf Inf Syst Printer for printing single sheets and continuous paper webs
US5993093A (en) * 1997-11-04 1999-11-30 Schoennauer; Larry Joseph Printer
JP4007470B2 (en) * 1998-10-12 2007-11-14 シチズンホールディングス株式会社 Printer
JP2001121480A (en) * 1999-10-29 2001-05-08 Star Micronics Co Ltd Paper cutter mechanism for printer
JP4592925B2 (en) * 2000-11-10 2010-12-08 シチズンホールディングス株式会社 Printer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7936366B2 (en) 2006-03-06 2011-05-03 Bematech Industria E Comercio De Equipamentos Electronics S/A Thermal printer
US8425130B2 (en) 2006-03-06 2013-04-23 Bematech S.A. Printer with modular cartridge

Also Published As

Publication number Publication date
EP1469998A1 (en) 2004-10-27
DE50310358D1 (en) 2008-10-02
WO2003064163A1 (en) 2003-08-07
DE10203402C1 (en) 2003-09-11

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