EP0303556A1 - Paper-guiding device for office machines, particularly for matrix printers - Google Patents

Paper-guiding device for office machines, particularly for matrix printers Download PDF

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Publication number
EP0303556A1
EP0303556A1 EP88730157A EP88730157A EP0303556A1 EP 0303556 A1 EP0303556 A1 EP 0303556A1 EP 88730157 A EP88730157 A EP 88730157A EP 88730157 A EP88730157 A EP 88730157A EP 0303556 A1 EP0303556 A1 EP 0303556A1
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EP
European Patent Office
Prior art keywords
storage compartment
paper
paper guide
shafts
guide device
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.)
Granted
Application number
EP88730157A
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German (de)
French (fr)
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EP0303556B1 (en
Inventor
Günther Engelhardt
Thomas Werner
Gerhard Lohrmann
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Priority to AT88730157T priority Critical patent/ATE76607T1/en
Publication of EP0303556A1 publication Critical patent/EP0303556A1/en
Application granted granted Critical
Publication of EP0303556B1 publication Critical patent/EP0303556B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10Sheet holders, retainers, movable guides, or stationary guides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/106Sheet holders, retainers, movable guides, or stationary guides for the sheet output section

Definitions

  • the invention relates to a paper guide device for office machines, in particular for matrix printers, consisting of a mounting part located above the writing abutment, which has a paper feed shaft and in the area of the writing abutment, angular trays for single sheets.
  • a paper guide device is known (DE-PS 28 56 950), which forms a paper guide shaft together with the rear wall of a storage compartment.
  • the single sheets described are conveyed tangentially to the writing abutment in the storage compartment.
  • the individual sheets are stacked on top of each other according to their consecutive numbers (1,2,3,4, ...) so that the highest number is always on top.
  • This disadvantage must be compensated for by rearranging from bottom to top.
  • Such a re-sorting may still seem feasible if there are fewer than five single sheets. In the long run, however, such sorting is time-consuming and therefore expensive and cumbersome.
  • the invention is therefore based on the object of carrying out the stacking process optionally for numbered single sheets in the order of increasing numbers, so that the finished paper stack is in the correct order of the increasing number sequence 1 to X and no longer has to be sorted.
  • a second storage compartment can be provided for pages that are not to be numbered.
  • the object is achieved in that in the area of the writing abutment a front, pivotable about a horizontal axis storage compartment and a rear storage compartment are provided in that an adjustable paper guide is arranged between the storage compartments is, with the pivoting movement of the pivotable storage compartment an adjustment of the paper guide in the direction of the front storage compartment or the rear storage compartment is connected. It is therefore sufficient to switch the front storage compartment from a basic position to a working position for switching on the stacking with increasing number sequence 1 to X.
  • the individual sheets are immediately stacked one after the other, with the first single sheet of the sheet stack with the number 1 lying on top.
  • the paper guide be formed from at least one pair of shafts arranged between the storage compartments with drivable friction rollers and at least one switch tongue arranged between the pair of friction rollers and the abutment.
  • the pivoting of the front storage compartment is therefore used to bring the paper guide into the desired position.
  • front, pivotable, angular storage compartment being adjustable from the storage position into a position which is flush with the attachment part on its end face.
  • the front storage compartment thus provides extremely ergonomic access to the individual sheets of a stack of sheets in the correct sequence of numbers.
  • the front storage compartment advantageously fits into the outer design of the attachment part.
  • the front storage compartment is mounted on the side walls of the attachment part about the horizontal pivot axis, and also has guide curves in pairs, in each of which a bearing plate is guided, two bearing plates receiving the pair of shafts with the friction rollers and the switch tongue between them and the bearing plates are each pivotally mounted about a common horizontal axis in the side walls of the attachment part.
  • a leg spring abuts against the outer circumference of the shafts and that one of the shafts is mounted in an elongated hole which runs in the direction of the adjustment path for different paper thicknesses between the two friction rollers.
  • bearing plates each have a locking projection and that latching means are provided in the side walls of the attachment part for the operating position of the pivotable front storage compartment and for its non-operating position.
  • the paper guidance in the respective storage compartment is further improved in that resilient guide fingers are attached to the switch tongue, which are angled in the area of the shafts in each case towards the direction of the front storage compartment or towards the direction of the rear storage compartment.
  • a mounting part 1 is shown with solid lines (FIG. 1), while a matrix printer 2, for which the mounting part 1 is used, is shown with dash-dotted lines.
  • the paper guide device described below is located within the attachment part 1 and is arranged between the side walls 3a and 3B of the attachment part 1. As can be seen, the attachment part 1 is attached in the area of the writing abutment 4. On the rear side 5 there is a paper guide shaft 6, through which single sheets 7 are fed to the abutment 4, printed on the front side and then deposited in angular trays in a stack of sheets.
  • a front storage compartment 10 which can be pivoted about a horizontal axis 9.
  • a horizontal axis 9 is rotatably supported in the side walls 3a and 3b of the attachment part 1 .
  • a rear storage compartment 11 is part of the attachment part 1.
  • drive gear trains which will be described in more detail.
  • a paper guide 12 is formed in connection with these drive gear trains, which can be aligned in two positions directed towards the storage compartments 10 or 11, in which the single sheets 7 are driven into the storage compartments 10 or 11.
  • the drive energy is transmitted via a pair of shafts 13a and 13b with drivable friction rollers 14a and 14b and the direction is determined partly by the pair of friction rollers 14a and 14b and partly by a switch tongue 15.
  • the drive of the friction rollers 14a and 14b is achieved via the drive gear train mentioned, which starts from a gear 16 on the platen 4, a platen, and drives intermediate gears 17, 18 and 19 to a gear 20 which is assigned to one of the friction rollers 14a or 14b is.
  • the friction roller 14b which is rigidly rotatably mounted, is provided with the toothed wheel 20.
  • the front storage compartment 10 is mounted with the horizontal pivot axes 9 in the side walls 3a and 3b of the attachment part 1 and is flush with the end face 1a of the attachment part 1 in the inoperative position (FIG. 3).
  • 10 guide curves 21 are provided in the side walls 10a and 10b of the storage compartment, in each of which a bearing plate 22 engages with guide pins 23.
  • the two bearing plates 22 opposite each other across the width of the attachment part 1 receive the shafts 13a and 13b with the friction rollers 14a and 14b between them, and the switch tongue 15, which extends over the full width between the two bearing plates 22 in the form of a rod.
  • the two bearing plates 22 are pivotally mounted as an assembly about the common horizontal axis 24 in the side walls 3a and 3b of the suspension part 1.
  • the bearing plates 22 carry the friction rollers 14a, 14b as well as the switch tongue 15 and the guide pin 23 mentioned in each case.
  • An elongated hole 25 is also provided for the shaft 13a, which permits a movement of the thickness of the associated friction roller 14a by different thicknesses of individual sheets 7 feed.
  • the two shafts 13a and 13b are pressed together by a leg spring 26, which is highlighted by a double dash line. The legs 26a and 26b each rest against the outer circumference 27 of the two shafts 13a and 13b.
  • the bearing plates 22 also each have a locking projection 28 on.
  • two locking pins are fastened as locking means 30 in the attachment part 1 at a radius from the axis 24 on which the switch tongue 15 is mounted and which at the same time forms the axis of rotation for the intermediate wheel 19.
  • switch tongue 15 Since the switch tongue 15 is fixed on the axis 24, the switch tongue 15 always moves with the intermediate wheel 19.
  • resilient guide fingers 31 and 32 are fastened on both sides, each in the area of the shaft 13b or the friction roller 14a for direction of the rear storage compartment 11 toward the direction of the front storage compartment 10 are angled to form a fixed path for each individual sheet 7 depending on the paper guide into the two storage compartments 10 and 11.
  • the storage compartments 10 and 11 are provided with a paper support 33 which can be interchangeably attached to them. After removal of the paper support 33 from the front storage compartment 10 and swiveling in, the paper guiding devices are largely form-closed.

Landscapes

  • Pile Receivers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Handling Of Cut Paper (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

In such a device, especially for matrix printers (2), consisting of an attachment unit (1) located over the platen roller (4), the unit (1) features a paper in-feed slot (6) and angle-shaped delivery stations (10, 11) for single sheets (7) in the region of the platen roller (4). <??>In order to guide the single sheets (7) as desired into various delivery stations, it is proposed that in the region of the platen roller (4) there is provided a front pocket (10), pivotable about a horizontal axis (9), and a rear pocket (11), and that between the pockets (10, 11) a paper guide (12) adjustable in its direction is arranged, an adjustment of the paper guide (12), in the direction of the front pocket (10) or the rear pocket (11), being corrected with the pivoting movement of the swingable pocket (10). <IMAGE>

Description

Die Erfindung betrifft eine Papierführungsvorrichtung für Büromaschinen, insbesondere für Matrixdrucker, bestehend aus einem über dem Schreibwiderlager befindlichen Aufsetzteil, der einen Papierzuführungsschacht und im Bereich des Schreibwiderlagers winkelförmige Ablagen für Einzelblätter aufweist.The invention relates to a paper guide device for office machines, in particular for matrix printers, consisting of a mounting part located above the writing abutment, which has a paper feed shaft and in the area of the writing abutment, angular trays for single sheets.

Es ist eine Papierführungsvorrichtung bekannt (DE-PS 28 56 950), die einen Papierführungsschacht zusammen mit der Rückwand eines Ablagefaches bildet. Hierbei werden die beschriebenen Einzelblätter tangential zum Schreibwiderlager in das Ablagefach befördert. In diesem Ablagefach werden die Einzelblätter nach ihrer aufeinanderfolgenden Nummer (1,2,3,4,...) übereinander gestapelt, so daß die höchste Zahl stets obenauf liegt. Dieser Nachteil muß durch nachträgliches Umsortieren von unten nach oben ausgeglichen werden. Ein solches Umsortieren mag bei einer Anzahl unter fünf Einzelblättern noch tragbar erscheinen. Auf Dauer ist ein solches Umsortieren jedoch zeitaufwendig und daher teuer sowie umständlich.A paper guide device is known (DE-PS 28 56 950), which forms a paper guide shaft together with the rear wall of a storage compartment. The single sheets described are conveyed tangentially to the writing abutment in the storage compartment. In this storage compartment, the individual sheets are stacked on top of each other according to their consecutive numbers (1,2,3,4, ...) so that the highest number is always on top. This disadvantage must be compensated for by rearranging from bottom to top. Such a re-sorting may still seem feasible if there are fewer than five single sheets. In the long run, however, such sorting is time-consuming and therefore expensive and cumbersome.

Der Erfindung liegt daher die Aufgabe zugrunde, den Stapelvorgang wahlweise für durchnumerierte Einzelblätter in der Reihenfolge ansteigender Zahlen durchzuführen, so daß der fertige Papierstapel in der zutreffenden Reihenfolge der ansteigenden Zahlenfolge 1 bis X liegt und nicht mehr umsortiert werden muß. Hierbei kann für nicht zu numerierende Seiten ein zweites Ablagefach vorgesehen sein.The invention is therefore based on the object of carrying out the stacking process optionally for numbered single sheets in the order of increasing numbers, so that the finished paper stack is in the correct order of the increasing number sequence 1 to X and no longer has to be sorted. A second storage compartment can be provided for pages that are not to be numbered.

Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, daß im Bereich des Schreibwiderlagers ein vorderes, um eine horizontale Achse schwenkbares Ablagefach und ein hinteres Ablagefach vorgesehen sind, daß zwischen den Ablagefächern eine in ihrer Richtung verstellbare Papierführung angeordnet ist, wobei mit der Schwenkbewegung des schwenkbaren Ablagefaches eine Verstellung der Papierführung in Richtung auf das vordere Ablagefach oder das hintere Ablagefach verbunden ist. Es genügt daher für das Einschalten der Stapelweise mit ansteigender Zahlenfolge 1 bis X, das vordere Ablagefach von einer Grundstellung in eine Arbeitsstellung umzuschalten. Sofort werden die Einzelblätter in ihrer Nummernfolge hintereinander gestapelt, wobei das erste Einzelblatt des Blattstapels mit der Nummer 1 obenauf liegt.The object is achieved in that in the area of the writing abutment a front, pivotable about a horizontal axis storage compartment and a rear storage compartment are provided in that an adjustable paper guide is arranged between the storage compartments is, with the pivoting movement of the pivotable storage compartment an adjustment of the paper guide in the direction of the front storage compartment or the rear storage compartment is connected. It is therefore sufficient to switch the front storage compartment from a basic position to a working position for switching on the stacking with increasing number sequence 1 to X. The individual sheets are immediately stacked one after the other, with the first single sheet of the sheet stack with the number 1 lying on top.

Für die Ausrichtung der Papierführung zu den einzelnen Ablagefächern wird vorgeschlagen, daß die Papierführung aus zumindest einem zwischen den Ablagefächern angeordneten Wellenpaar mit antreibbaren Friktionswalzen und aus zumindest einer zwischen dem Friktionswalzenpaar und dem Schreibwiderlager angeordneten Weichenzunge gebildet ist. Das Verschwenken des vorderen Ablagefaches wird also dazu benutzt, um die Papierführung in die gewünschte Stellung zu bringen.For the alignment of the paper guide to the individual storage compartments, it is proposed that the paper guide be formed from at least one pair of shafts arranged between the storage compartments with drivable friction rollers and at least one switch tongue arranged between the pair of friction rollers and the abutment. The pivoting of the front storage compartment is therefore used to bring the paper guide into the desired position.

Hierbei ergibt sich vorteilhafterweise, daß das vordere, schwenkbare, winkelförmige Ablagefach von der Ablagestellung in eine den Aufsetzteil an seiner Stirnseite bündig abschließenden Stellung verstellbar ist. Somit bildet das vordere Ablagefach einen ergonomisch äußerst günstigen Zugriff auf die in richtiger Nummernfolge liegenden Einzelblätter eines Blattstapels. Außerdem fügt sich das vordere Ablagefach in die äußere Gestaltung des Aufsetzteils vorteilhaft ein.This advantageously results in the front, pivotable, angular storage compartment being adjustable from the storage position into a position which is flush with the attachment part on its end face. The front storage compartment thus provides extremely ergonomic access to the individual sheets of a stack of sheets in the correct sequence of numbers. In addition, the front storage compartment advantageously fits into the outer design of the attachment part.

In Ausgestaltung der Erfindung ist vorgesehen, daß das vordere Ablagefach an den Seitenwänden des Aufsetzteils um die horizontale Schwenkachse gelagert ist, außerdem paarweise Führungskurven aufweist, in denen jeweils eine Lagerplatte geführt ist, wobei zwei Lagerplatten zwischen sich das Wellenpaar mit den Friktionswalzen und die Weichenzunge aufnehmen und die Lagerplatten jeweils um eine gemeinsame horizontale Achse schwenkbar in den Seitenwänden des Aufsetzteils gelagert sind. Diese Gestaltungsweise kann demzufolge wirtschaftlich als einfache Getriebekette ausgebildet werden mit einer Mindestanzahl von Bauteilen.In an embodiment of the invention, it is provided that the front storage compartment is mounted on the side walls of the attachment part about the horizontal pivot axis, and also has guide curves in pairs, in each of which a bearing plate is guided, two bearing plates receiving the pair of shafts with the friction rollers and the switch tongue between them and the bearing plates are each pivotally mounted about a common horizontal axis in the side walls of the attachment part. This design can therefore be designed economically as a simple transmission chain with a minimum number of components.

Als weitere Verbesserung wird vorgeschlagen, daß eine Schenkelfeder jeweils gegen den Außenumfang der Wellen anliegt und daß eine der Wellen in einem Langloch gelagert ist, das in Richtung des Anstellweges für unterschiedliche Papierdicken zwischen den beiden Friktionswalzen verläuft.As a further improvement it is proposed that a leg spring abuts against the outer circumference of the shafts and that one of the shafts is mounted in an elongated hole which runs in the direction of the adjustment path for different paper thicknesses between the two friction rollers.

Eine andere Weiterbildung besteht darin, daß die Lagerplatten jeweils einen Verriegelungsvorsprung aufweisen und daß für die Betriebsstellung des schwenkbaren vorderen Ablagefaches und für dessen Außerbetriebsstellung jeweils in den Seitenwänden des Aufsetzteiles Rastmittel vorgesehen sind.Another further development is that the bearing plates each have a locking projection and that latching means are provided in the side walls of the attachment part for the operating position of the pivotable front storage compartment and for its non-operating position.

Die Papierführung in das jeweilige Ablagefach wird noch dadurch verbessert, daß an der Weichenzunge beidseitig federnde Leitfinger befestigt sind, die im Bereich der Wellen jeweils zur Richtung des vorderen Ablagefaches hin bzw. zur Richtung des hinteren Ablagefaches hin abgewinkelt sind.The paper guidance in the respective storage compartment is further improved in that resilient guide fingers are attached to the switch tongue, which are angled in the area of the shafts in each case towards the direction of the front storage compartment or towards the direction of the rear storage compartment.

Zur Verminderung des Aufwandes für die Ablagefächer wird außerdem vorgeschlagen, daß eine auf die Ablagefächer wechselweise aufsteckbare Papierstütze vorgesehen ist.To reduce the effort for the storage compartments, it is also proposed that a paper support which can be alternately plugged onto the storage compartments is provided.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen

  • Fig. 1 einen Matrixdrucker mit Aufsetzteil, in dem die Papierführungsvorrichtung enthalten ist, in perspektivischer Darstellung,
  • Fig. 2 einen Querschnitt durch die Papierführungsvorrichtung mit in Betriebsstellung befindlichem vorderen Ablagefach und
  • Fig 3 denselben Querschnitt wie Fig. 2, jedoch mit der Betriebsstellung für das hintere Ablagefach.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it
  • 1 is a perspective view of a matrix printer with a mounting part, in which the paper guide device is contained,
  • Fig. 2 shows a cross section through the paper guide device with the front storage compartment in the operating position and
  • 3 shows the same cross section as FIG. 2, but with the operating position for the rear storage compartment.

Ein Aufsetzteil 1 ist mit ausgezogenen Linien dargestellt (Fig. 1), während ein Matrixdrucker 2, für den das Aufsetzteil 1 verwendet wird, mit strichpunktierten Linien dargestellt ist. Innerhalb des Aufsetzteils 1 befindet sich die nachstehend beschriebene Papierführungsvorrichtung, die zwischen den Seitenwänden 3a bzw. 3B des Aufsetzteils 1 angeordnet ist. Das Aufsetzteil 1 wird wie ersichtlich im Bereich des Schreibwiderlagers 4 aufgesetzt. An der Rückseite 5 befindet sich ein Papierführungsschacht 6, durch den Einzelblätter 7 dem Schreibwiderlager 4 zugeführt, auf deren Vorderseite bedruckt und danachin winkelförmigen Ablagen in einem Blattstapel abgelegt werden.A mounting part 1 is shown with solid lines (FIG. 1), while a matrix printer 2, for which the mounting part 1 is used, is shown with dash-dotted lines. The paper guide device described below is located within the attachment part 1 and is arranged between the side walls 3a and 3B of the attachment part 1. As can be seen, the attachment part 1 is attached in the area of the writing abutment 4. On the rear side 5 there is a paper guide shaft 6, through which single sheets 7 are fed to the abutment 4, printed on the front side and then deposited in angular trays in a stack of sheets.

Über dem Schreibwiderlager 4, dem zur Führung des bedruckten Einzelblattes 7 noch ein Antriebswalzenpaar 8 nachgeschaltet ist, befindet sich ein vorderes, um eine horizontale Achse 9 schwenkbares Ablagefach 10. Eine solche horizontale Achse 9 ist jeweils in den Seitenwänden 3a und 3b des Aufsetzteils 1 drehgelagert. Ein hinteres Ablagefach 11 ist Bestandteil des Aufsetzteils 1. Über dem Schreibwiderlager 4, d.h. zwischen den Ablagefächern 10 und 11, befinden sich Antriebsgetriebezüge, die noch genauer beschrieben werden. Außerdem ist in Verbindung mit diesen Antriebsgetriebezügen eine Papierführung 12 gebildet, die in zwei auf die Ablagefächer 10 oder 11 gerichtete Stellungen ausgerichtet werden kann, in denen die Einzelblätter 7 angetrieben in die Ablagefächer 10 oder 11 geschoben werden.Above the writing abutment 4, which is followed by a pair of drive rollers 8 for guiding the printed single sheet 7, there is a front storage compartment 10 which can be pivoted about a horizontal axis 9. Such a horizontal axis 9 is rotatably supported in the side walls 3a and 3b of the attachment part 1 . A rear storage compartment 11 is part of the attachment part 1. Over the writing abutment 4, i.e. between the storage compartments 10 and 11, there are drive gear trains, which will be described in more detail. In addition, a paper guide 12 is formed in connection with these drive gear trains, which can be aligned in two positions directed towards the storage compartments 10 or 11, in which the single sheets 7 are driven into the storage compartments 10 or 11.

Für den anzustrebenden Bewegungsablauf der Einzelblätter 7 wird die Antriebsenergie über ein Wellenpaar 13a und 13b mit antreibbaren Friktionswalzen 14a und 14b übertragen und die Richtung teils durch das Friktionswalzenpaar 14a und 14b, teils durch eine Weichenzunge 15 bestimmt.For the desired sequence of movements of the individual sheets 7, the drive energy is transmitted via a pair of shafts 13a and 13b with drivable friction rollers 14a and 14b and the direction is determined partly by the pair of friction rollers 14a and 14b and partly by a switch tongue 15.

Der Antrieb der Friktionswalzen 14a und 14b wird über den erwähnten Antriebsgetriebezug erzielt, der von einem Zahnrad 16 auf dem Schreibwiderlager 4, einer Schreibwalze, ausgeht und über Zwischenräder 17,18 und 19 auf ein Zahnrad 20 treibt, das einem der Friktionswalzen 14a oder 14b zugeordnet ist. Im Hinblick auf eine Abstandseinstellung für verschiedene Papierdicken, ist die Friktionswalze 14b, die starr drehgelagert ist, mit dem Zahnrad 20 versehen.The drive of the friction rollers 14a and 14b is achieved via the drive gear train mentioned, which starts from a gear 16 on the platen 4, a platen, and drives intermediate gears 17, 18 and 19 to a gear 20 which is assigned to one of the friction rollers 14a or 14b is. In view of a distance setting for different paper thicknesses, the friction roller 14b, which is rigidly rotatably mounted, is provided with the toothed wheel 20.

Das vordere Ablagefach 10 ist mit den horizontalen Schwenkachsen 9 in den Seitenwänden 3a und 3b des Aufsetzteils 1 gelagert und schließt in Außerbetriebsstellung (Fig. 3) mit der Stirnseite 1a des Aufsetzteils 1 bündig ab. Außerdem sind in Seitenwangen 10a und 10b des Ablagefaches 10 Führungskurven 21 vorgesehen, in die jeweils eine Lagerplatte 22 mit Führungszapfen 23 eingreift. Die beiden sich quer über die Breite des Aufsetzteils 1 gegenüberliegenden Lagerplatten 22 nehmen zwischen sich die Wellen 13a und 13b mit den Friktionswalzen 14a und 14b auf sowie die Weichenzunge 15, die sich über die volle Breite zwischen den beiden Lagerplatten 22 in Stabform erstreckt. Die beiden Lagerplatten 22 sind als Baugruppe um die gemeinsame horizontale Achse 24 schwenkbar in den Seitenwänden 3a und 3b des Ausetzteils 1 drehgelagert.The front storage compartment 10 is mounted with the horizontal pivot axes 9 in the side walls 3a and 3b of the attachment part 1 and is flush with the end face 1a of the attachment part 1 in the inoperative position (FIG. 3). In addition, 10 guide curves 21 are provided in the side walls 10a and 10b of the storage compartment, in each of which a bearing plate 22 engages with guide pins 23. The two bearing plates 22 opposite each other across the width of the attachment part 1 receive the shafts 13a and 13b with the friction rollers 14a and 14b between them, and the switch tongue 15, which extends over the full width between the two bearing plates 22 in the form of a rod. The two bearing plates 22 are pivotally mounted as an assembly about the common horizontal axis 24 in the side walls 3a and 3b of the suspension part 1.

Die Lagerplatten 22 tragen außer den Wellen 13a und 13b die Friktionswalzen 14a, 14b sowie die Weichenzunge 15 und jeweils den erwähnten Führungszapfen 23. Für die Welle 13a ist außerdem ein Langloch 25 vorgesehen, das eine Dickenabstandsbewegung der zugehörigen Friktionswalze 14a gestattet, um unterschiedlich dicke Einzelblätter 7 zuzuführen. Hierbei werden die beiden Wellen 13a und 13b durch eine Schenkelfeder 26 zusammengedrückt, die durch eine doppelte Strichlinie hervorgehoben ist. Die Schenkel 26a und 26b liegen jeweils am Außenumfang 27 der beiden Wellen 13a und 13b federnd an.In addition to the shafts 13a and 13b, the bearing plates 22 carry the friction rollers 14a, 14b as well as the switch tongue 15 and the guide pin 23 mentioned in each case. An elongated hole 25 is also provided for the shaft 13a, which permits a movement of the thickness of the associated friction roller 14a by different thicknesses of individual sheets 7 feed. Here, the two shafts 13a and 13b are pressed together by a leg spring 26, which is highlighted by a double dash line. The legs 26a and 26b each rest against the outer circumference 27 of the two shafts 13a and 13b.

Die Lagerplatten 22 weisen außerdem jeweils einen Verriegelungsvorsprung 28 auf. Für die beiden Verriegelungsstellungen sind im Aufsetzteil 1 in einem Radius mit Abstand zu der Achse 24, auf der die Weichenzunge 15 gelagert ist und die gleichzeitig die Drehachse für das Zwischenrad 19 bildet, zwei Raststifte als Rastmittel 30 befestigt.The bearing plates 22 also each have a locking projection 28 on. For the two locking positions, two locking pins are fastened as locking means 30 in the attachment part 1 at a radius from the axis 24 on which the switch tongue 15 is mounted and which at the same time forms the axis of rotation for the intermediate wheel 19.

Da die Weichenzunge15 auf der Achse 24 fest ist, bewegt sich die Weichenzunge 15 stets mit dem Zwischenrad 19. An der Weichenzunge 15 sind beidseitig federnde Leitfinger 31 bzw. 32 befestigt, die in dem Bereich der Welle 13b bzw. der Friktionswalze 14a jeweils zur Richtung des hinteren Ablagefaches 11 hin bzw. zur Richtung des vorderen Ablagefaches 10 hin abgewinkelt sind, um eine festbestimmte Bahn für jedes Einzelblatt 7 je nach Papierführung in die beiden Ablagefächer 10 und 11 zu bilden.Since the switch tongue 15 is fixed on the axis 24, the switch tongue 15 always moves with the intermediate wheel 19. On the switch tongue 15, resilient guide fingers 31 and 32 are fastened on both sides, each in the area of the shaft 13b or the friction roller 14a for direction of the rear storage compartment 11 toward the direction of the front storage compartment 10 are angled to form a fixed path for each individual sheet 7 depending on the paper guide into the two storage compartments 10 and 11.

Die Ablagefächer 10 und 11 sind mit einer auf diese wechselweise aufsteckbaren Papierstütze 33 versehen. Nach Entfernung der Papierstütze 33 vom vorderen Ablagefach 10 und Einschwenken ist die Papierführungsvorrichtungen weitestgehend formgeschlossen.The storage compartments 10 and 11 are provided with a paper support 33 which can be interchangeably attached to them. After removal of the paper support 33 from the front storage compartment 10 and swiveling in, the paper guiding devices are largely form-closed.

Claims (8)

1. Papierführungsvorrichtung für Büromaschinen, insbesondere für Matrixdrucker, bestehend aus einem über dem Schreibwiderlager befindlichen Aufsetzteil, der einen Papierzuführungsschacht und im Bereich des Schreibwiderlagers winkelförmige Ablagen für Einzelblätter aufweist,
dadurch gekennzeichnet,
daß im Bereich des Schreibwiderlagers (4) ein vorderes, um eine horizontale Achse (9) schwenkbares Ablagefach (10) und ein hinteres Ablagefach (11) vorgesehen sind, daß zwischen den Ablagefächern (10,11) eine in ihrer Richtung verstellbare Papierführung (12) angeordnet ist, wobei mit der Schwenkbewegung des schwenkbaren Ablagefaches (10) eine Verstellung der Papierführung (12) in Richtung auf das vordere Ablagefach (10) oder das hintere Ablagefach (11) verbunden ist.
1. Paper guiding device for office machines, in particular for matrix printers, consisting of a mounting part located above the writing abutment, which has a paper feed shaft and in the area of the writing abutment, angular shelves for single sheets,
characterized,
that a front storage compartment (10) and a rear storage compartment (11) which can be pivoted about a horizontal axis (9) are provided in the area of the writing abutment (4), that between the storage compartments (10, 11) a paper guide (12 ) is arranged, with the pivoting movement of the pivotable storage compartment (10) an adjustment of the paper guide (12) in the direction of the front storage compartment (10) or the rear storage compartment (11) is connected.
2. Papierführungsvorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Papierführung (12) aus zumindest einem zwischen den Ablagefächern (10,11) angeordneten Wellenpaar (13a,13b) mit antreibbaren Friktionswalzen (14a,14b) und aus zumindest einer zwischen dem Friktionswalzenpaar (14a,14b) und dem Schreibwiderlager (4) angeordneten Weichenzunge (15) gebildet ist.
2. paper guide device according to claim 1,
characterized,
that the paper guide (12) consists of at least one pair of shafts (13a, 13b) arranged between the storage compartments (10, 11) with drivable friction rollers (14a, 14b) and at least one between the pair of friction rollers (14a, 14b) and the writing abutment (4) arranged switch tongue (15) is formed.
3. Papierführungsvorrichtung nach den Ansprüchen 1 oder 2,
dadurch gekennzeichnet,
daß das vordere, schwenkbare, winkelförmige Ablagefach (10) von der Ablagestellung (Fig. 2) in eine den Aufsetzteil (1) an seiner Stirnseite (1a) bündig abschließende Stellung verstellbar ist (Fig. 3).
3. paper guide device according to claims 1 or 2,
characterized,
that the front, swiveling, angular storage compartment (10) is adjustable from the storage position (Fig. 2) into a position fitting the mounting part (1) on its end face (1a) (Fig. 3).
4. Papierführungsvorrichtung nach den Ansprüchen 1 bis 3,
dadurch gekennzeichnet,
daß das vordere Ablagefach (10) an den Seitenwänden (3a,3b) des Aufsetzteils (1) um die horizontale Schwenkachse (9) gelagert ist, außerdem paarweise Führungskurven (21) aufweist, in denen jeweils eine Lagerplatte (22) geführt ist, wobei zwei Lagerplatten (22) zwischen sich das Wellenpaar (13a,13b) mit den Friktionswalzen (14a,14b) und die Weichenzunge (15) aufnehmen und die Lagerplatten (22) jeweils um eine gemeinsame horizontale Achse (24) schwenkbar in den Seitenwänden (3a,3b) des Aufsetzteils (1) gelagert sind.
4. paper guide device according to claims 1 to 3,
characterized,
that the front storage compartment (10) on the side walls (3a, 3b) of the attachment part (1) is mounted about the horizontal pivot axis (9), also has pairs of guide curves (21), in each of which a bearing plate (22) is guided, wherein two bearing plates (22) between them the pair of shafts (13a, 13b) with the friction rollers (14a, 14b) and the switch tongue (15) and the bearing plates (22) each pivotable about a common horizontal axis (24) in the side walls (3a , 3b) of the attachment part (1) are mounted.
5. Papierführungsvorrichtung nach Anspruch 4,
dadurch gekennzeichnet,
daß eine Schenkelfeder (26) jeweils gegen den Außenumfang (27) der Wellen (13a,13b) anliegt und daß eine der Wellen (13a,13b) in einem Langloch (25) gelagert ist, das in Richtung des Anstellweges für unterschiedliche Papierdicken zwischen den beiden Friktionswalzen (14a,14b) verläuft.
5. paper guide device according to claim 4,
characterized,
that a leg spring (26) abuts against the outer circumference (27) of the shafts (13a, 13b) and that one of the shafts (13a, 13b) is mounted in an elongated hole (25) which, in the direction of the adjustment path for different paper thicknesses between the two friction rollers (14a, 14b).
6. Papierführungsvorrichtung nach einem oder mehreren der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß die Lagerplatten (22) jeweils einen Verriegelungsvorsprung (28) aufweisen und daß für die Betriebsstellung (Fig. 2) des schwenkbaren, vorderen Ablagefaches (10) und für dessen Außerbetriebsstellung (Fig. 3) jeweils in den Seitenwänden (3a,3b) des Aufsetzteils (1) Rastmittel (30) vorgesehen sind.
6. paper guide device according to one or more of claims 1 to 5,
characterized,
that the bearing plates (22) each have a locking projection (28) and that for the operating position (Fig. 2) of the pivotable front storage compartment (10) and for its non-operating position (Fig. 3) in each of the side walls (3a, 3b) of the Attachment part (1) locking means (30) are provided.
7. Papierführungsvorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß an der Weichenzunge (15) beidseitig federnde Leitfinger (31,32) befestigt sind, die im Bereich der Wellen (13a,13b) jeweils zur Richtung des vorderen Ablagefaches (10) hin bzw. zur Richtung des hinteren Ablagefaches (11) hin abgewinkelt sind.
7. paper guide device according to claim 2,
characterized,
that resilient guide fingers (31, 32) are attached to the switch tongue (15), which are angled in the region of the shafts (13a, 13b) in each case towards the direction of the front storage compartment (10) or towards the direction of the rear storage compartment (11) are.
8. Papierführungsvorrichtung nach den Ansprüchen 1 bis 7,
dadurch gekennzeichnet,
daß eine auf die Ablagefächer (10,11) wechselweise aufsteckbare Papierstütze (33) vorgesehen ist.
8. paper guide device according to claims 1 to 7,
characterized,
that a paper support (33) which can be alternately plugged onto the storage compartments (10, 11) is provided.
EP88730157A 1987-08-11 1988-07-13 Paper-guiding device for office machines, particularly for matrix printers Expired - Lifetime EP0303556B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88730157T ATE76607T1 (en) 1987-08-11 1988-07-13 PAPER GUIDE DEVICE FOR OFFICE MACHINES, ESPECIALLY. FOR MATRIX PRINTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873727070 DE3727070A1 (en) 1987-08-11 1987-08-11 PAPER GUIDE DEVICE FOR OFFICE MACHINES, ESPECIALLY FOR MATRIX PRINTERS
DE3727070 1987-08-11

Publications (2)

Publication Number Publication Date
EP0303556A1 true EP0303556A1 (en) 1989-02-15
EP0303556B1 EP0303556B1 (en) 1992-05-27

Family

ID=6333713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730157A Expired - Lifetime EP0303556B1 (en) 1987-08-11 1988-07-13 Paper-guiding device for office machines, particularly for matrix printers

Country Status (5)

Country Link
US (1) US4995747A (en)
EP (1) EP0303556B1 (en)
JP (1) JPH0192169A (en)
AT (1) ATE76607T1 (en)
DE (2) DE3727070A1 (en)

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Also Published As

Publication number Publication date
ATE76607T1 (en) 1992-06-15
DE3727070A1 (en) 1989-02-23
DE3871458D1 (en) 1992-07-02
DE3727070C2 (en) 1992-09-24
EP0303556B1 (en) 1992-05-27
US4995747A (en) 1991-02-26
JPH0192169A (en) 1989-04-11

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