EP0154211B1 - Printing unit - Google Patents

Printing unit Download PDF

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Publication number
EP0154211B1
EP0154211B1 EP85101477A EP85101477A EP0154211B1 EP 0154211 B1 EP0154211 B1 EP 0154211B1 EP 85101477 A EP85101477 A EP 85101477A EP 85101477 A EP85101477 A EP 85101477A EP 0154211 B1 EP0154211 B1 EP 0154211B1
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EP
European Patent Office
Prior art keywords
setting
shaft
setting shaft
housing
disposed
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 - Lifetime
Application number
EP85101477A
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German (de)
French (fr)
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EP0154211A3 (en
EP0154211A2 (en
Inventor
Heinrich Volk
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.)
Esselte Pendaflex Corp
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Esselte Pendaflex Corp
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Publication date
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Priority to AT85101477T priority Critical patent/ATE52459T1/en
Publication of EP0154211A2 publication Critical patent/EP0154211A2/en
Publication of EP0154211A3 publication Critical patent/EP0154211A3/en
Application granted granted Critical
Publication of EP0154211B1 publication Critical patent/EP0154211B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
    • B41K3/00—Apparatus for stamping articles having integral means for supporting the articles to be stamped
    • B41K3/02—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface
    • B41K3/04—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface and movable at right angles to the surface to be stamped
    • B41K3/06—Apparatus for stamping articles having integral means for supporting the articles to be stamped with stamping surface located above article-supporting surface and movable at right angles to the surface to be stamped having type-carrying bands or chains

Definitions

  • the invention relates to a printing unit with a housing in which a plurality of type carriers are mounted, which are in a drive connection with coaxially arranged adjusting wheels each having a central bore, an adjusting shaft which is axially displaceable and rotatable in the space formed by the central bores of the adjusting wheels is arranged and can be brought into a drive connection by axial displacement with each of the setting wheels, an actuating button attached to an end section of the setting shaft for shifting and rotating the setting shaft and a display device which is arranged in the housing in a manner parallel to the setting shaft and with one end section of the Adjustment shaft is connected so that it can rotate relative to it, but can only move axially together with it, the display device being assigned to the type holders so that their position can be seen which type holder is in the respective
  • the axial position of the setting shaft can be adjusted via the drive connection between the latter and a setting wheel and between the setting wheel and the type carrier.
  • Such a printing unit is known from DE-OS 30 31 820.
  • This printing unit is intended for use in a hand-held labeling device by providing self-adhesive labels with a price imprint or the like, which can then be attached to an article of goods by means of the labeling device.
  • the individual type carriers must be adjusted in the printing unit in such a way that the desired print types reach the printing position.
  • This setting can be achieved by a suitable rotation and displacement of the setting shaft using the operating button.
  • the actuation button protrudes on the side of the housing of the printing unit, and in the application specifically mentioned, it also projects on the side of the housing of the hand-held labeling device, so that the printing types can be set without removing the printing unit from the device housing.
  • the display device used to control the adjustment processes to be carried out is connected to the end section of the adjustment shaft which carries the actuating button via a web which surrounds the end section by means of a hub, then runs radially and carries at its end the display device running parallel to the axis of the adjustment shaft.
  • the actuation button is as easily accessible as possible and protrudes far out of the housing.
  • sticking out far is disadvantageous when handling the labeling device, since the operator can easily hit objects or get caught somewhere with the actuating button, which under certain circumstances can even damage the printing unit.
  • a reduction in the protrusion of the actuating button makes the operation not inconsiderably difficult, since it can happen that the operator gets caught with the fingers gripping the operating button during the rotary movement to be carried out on the web carrying the display device. This could only be avoided by touching the control button with your fingertips, which, however, makes twisting difficult.
  • an axially displaceable actuating button is used to improve the ease of use, which can be moved back into a less protruding position after the setting operations have been carried out.
  • the use of the actuating button which can be displaced relative to the setting shaft, is disadvantageous with regard to the clear association between the position of the actuating button and the position of the display device.
  • the operator must always first convince himself of the position of the adjusting shaft by looking closely at the display device, while in the case of printing units with an axially immovable actuating button the position of the button also contributes to the detection of the position of the adjusting shaft.
  • Moving the operating button before adjusting the setting shaft is an additional operating step, which is particularly troublesome when the setting wheel to be adjusted when the setting shaft is fully inserted is to be acted on.
  • the invention has for its object to design a printing unit of the type described in such a way that a good ease of use is achieved with a little protruding button on the side.
  • connection between the end section of the adjusting shaft carrying the actuating button and the display device is formed by a circular cap which has a hub on the end section of the Adjustment shaft is mounted and on the edge of which the display device is attached.
  • the cap has the shape of a cone tapering towards the hub. This further development creates a little more space for the operator's fingers when grasping the actuating head.
  • the printing unit 10 shown in FIG. 1 contains a printing unit housing composed of two housing halves 12 and 14, in which a plurality of type carriers 20, embodied as tapes, are arranged next to one another in parallel, guided around setting wheels 16 and a deflection edge 18.
  • the type carriers 20 carry print types 22 on one half of their outer peripheral surface and display types 24 on the other half.
  • the assignment of the print types 22 to the display types 24 is carried out in such a way that print types 22, which are currently in the printing position on the deflection edge 18, and Display types 24, which are visible through a window 26 arranged on the top of the housing, each represent the same number, the same bus letter or the like. This means that it can be seen on the top of the housing through the window 26 which character can be printed on the recording medium with the printing types 22 located at the bottom on the deflecting edge.
  • the type carriers 20 are guided around setting wheels 16 which are rotatably mounted on a sleeve 28.
  • At least one slot 30 is provided in the sleeve 28 and is open at the sleeve end on the right in FIG. 1.
  • a tooth 36 which is attached to an adjusting shaft 42, extends through this slot.
  • the setting shaft 42 is axially displaceably mounted in a bearing bushing 44 in the housing half 14. By displacing the setting shaft 42 in the axial direction, this shaft can be brought into a drive connection by engagement of the tooth 36 in one of a plurality of recesses 46 in the hub regions of the setting wheels 16.
  • An actuating button 48 is attached to the section 45 of the adjusting shaft 42 protruding from the housing, with the aid of which the shaft can be axially displaced on the one hand and rotated on the other hand.
  • the tooth 36 attached to it is first brought into engagement with one of the recesses 46 of an adjusting wheel 16 to be adjusted, and by rotating the adjusting shaft 42, the type carrier 20 guided around its outer circumference is moved until one Desired print type 22 is in the printing position below the deflection edge 18.
  • the respective position of the print types 22 can be checked through the window 26 attached to the top of the housing.
  • the type carriers 20 have teeth on their inner surface, which engage in recesses in the outer peripheral surfaces of the setting wheels 16.
  • a latching mechanism is provided which ensures that the adjusting shaft engages in positions in one position in which it can be clearly felt by the operator unique drive connection is made with an adjustment wheel 16 to be adjusted.
  • This locking mechanism contains a locking finger 54 integrally formed on the sleeve 28, which projects radially inward on the inner surface of the sleeve and engages in locking recesses 56 which are provided in a region of the outer peripheral surface of the adjusting shaft 42.
  • a latching recess 56 is provided for each of the setting wheels 16 supported on the sleeve 28.
  • the setting shaft 42 in which the setting shaft 42 is engaged with the leftmost setting wheel 16, the setting shaft 42 is moved to the right so that it comes into engagement with the next setting wheel 16, for example first the latching force exerted by the latching finger 54 on the adjusting shaft 42 is overcome when it is moved upward out of the associated latching recess 56 in the illustration in FIG. 1; it can then fall into the next latching recess 56, which occurs precisely when the setting shaft 42 is in engagement with the second setting wheel 16 from the left.
  • the setting shaft 42 extends in the section 45 directly adjacent to the actuating button 48 through a hub 62 which is attached to a conical cap 64.
  • This cap carries a frame 27 surrounding the window 26, which is slidably mounted on the top of the housing. If the Setting shaft 42 is axially displaced, the frame 27 moves with the window 26, the end of the viewing window on the left in FIG. 1 being in the region of the plane of the setting wheel 16 with which the setting shaft 42 is engaged.
  • the frame 27 thus forms a display device with its window 26, and by observing the left end of the window 26, the operator knows in every axial position of the setting shaft 42 which type carrier 20 can just be brought into the desired position.
  • a marking arrow 29 recognizable in FIG. 3 on the frame 27 facilitates the identification of the type carrier 20 that is to be adjusted.
  • This locking mechanism consists of a helical spring 66 which is arranged parallel to the longitudinal axis of the adjusting shaft 42 on the circumference of the adjusting wheels 16 in such a way that it partially penetrates into the recesses 52 on the circumference of the adjusting wheels 16, which can be clearly seen in FIG. 1. So that the setting wheels 16 can be rotated, although the coil spring 66 engages in its recesses, the coil spring 66 is mounted on an elastically flexible cushion 68.
  • the helical spring 66 can deflect in this way and thereby push into the cushion 68.
  • the operator initially feels an increase in the torsional force to be used, which then decreases again when the coil spring penetrates into the next recess 52. The operator therefore feels significant force peaks, and he knows that whenever he has overcome a force peak, a type of pressure 22 is in the exact printing position below the deflection edge 18.
  • the cap 64 connecting the section 45 of the adjusting shaft 42 with the frame 27 containing the window 26 has a conical shape toward the actuating button according to FIGS. 1 and 3. 2 completely covers the upper part of the printing unit when the setting shaft 42 is pushed completely into the printing unit, as is the case in FIGS. 1 and 3. Since the cap 64 forms a closed surface, the touching and twisting of the actuation button 48 is not impeded, even if the actuation button 48 is made relatively narrow, so that the fingertips of the operator protrude inward towards the cap 64 beyond the actuation button 48. The fingertips can easily slide along the smooth outer surface of the cap 64 when the actuating button 48 is turned. The side projection and the thickness of the actuation button can therefore be kept small.
  • the conical cap 64 the stability of the connection between the adjusting shaft 42 and the frame 27 is also considerably improved.
  • the cap 64 also contributes very well to protecting the printing unit against the ingress of contaminants, since the bearing area is well closed in the fully inserted state of the adjusting shaft.
  • the cap 64 carries at its end diametrically opposite the frame 27 a pin 70 which projects through a passage 72 in the housing half 14 into the cavity surrounded by the coil spring 66.
  • This pin 70 contributes, inter alia, to an improvement in the guidance of the cap 64, since its edge is thus guided at two diametrically opposite points when the adjusting shaft is axially displaced.
  • the printing unit described is intended to be used in a hand-held labeling device, in which price labels and the like can be found on self-adhesive labels. Like. Can produce by moving it downward relative to the housing of the device in the view of Fig. 1.
  • the wall of the device housing runs parallel to the printing unit housing half 14 at a distance, and it protrudes until just below the pin 70.
  • the operating button protrudes undesirably far from the housing of the labeling device.
  • pin 70 prevents actuation of the labeling device, which is associated with a lowering of the printing unit.
  • the pin 70 bumps against the wall of the device housing, so that the operator is reminded to bring the adjusting shaft back into the position shown in FIG. 1 before actuating the device again.
  • the conical shape of the outer surface of the cap can be used in conjunction with the wall of the device housing to automatically reset the setting shaft to the fully retracted position when the printing unit is lowered when the device is actuated and the setting shaft is still slightly pulled out.

Abstract

A printing mechanism is described comprising a housing (12, 14) in which a plurality of type carriers (20) are disposed which are in a drive connection with coaxially disposed setting wheels (16) each having a center bore. In a space formed by the center bores of the setting wheels a setting shaft (42) is axially displaceable and rotatable. By axial displacement the setting shaft can be brought into a drive connection with each of the setting wheels. On the setting shaft an actuating knob (48) is disposed with the aid of which said shaft can be displaced and turned. In the housing a display indicator means (26, 27, 29) is disposed displaceably parallel to the setting shaft; said means is connected to the setting shaft in such a manner that the latter turns relatively thereto but can be displaced axially only jointly therewith. The display indicator means makes it possible to recognize the type carrier which can be adjusted in the respective axial position of the setting shaft. The connection between the setting shaft and the display indicator means is formed by a substantially circular cap ( 64) which is mounted with a hub (62) on the setting shaft and on the edge of which the display indicator means is secured.

Description

Die Erfindung bezieht sich auf ein Druckwerk mit einem Gehäuse, in dem mehrere Typenträger angebracht sind, die mit koaxial angeordneten, jeweils eine Mittelbohrung aufweisenden Einstellrädern in einer Antriebsverbindung stehen, einer Einstellwelle, die in dem von den Mittelbohrungen der Einstellräder gebildeten Raum axial verschiebbar und verdrehbar angeordnet ist und durch axiales Verschieben mit jedem der Einstellräder in eine Antriebsverbindung bringbar ist, einem auf einem Endabschnitt der Einstellwelle angebrachten Betätigungsknopf zum Verschieben und Verdrehen der Einstellwelle und einer Anzeigevorrichtung, die in dem Gehäuse parallel zur Einstellwelle verschiebbar angeordnet ist und mit dem einen Endabschnitt der Einstellwelle so verbunden ist, daß sich diese relativ zu ihr verdrehen, aber nur gemeinsam mit ihr axial verschieben kann, wobei die Anzeigevorrichtung den Typenträgern so zugeordnet ist, daß ihre Stellung erkennen läßt, welcher Typenträger in der jeweiligen Axialposition der Einstellwelle über die Antriebsverbindung zwischen dieser und einem Einstellrad sowie zwischen dem Einstellrad und dem Typenträger verstellt werden kann.The invention relates to a printing unit with a housing in which a plurality of type carriers are mounted, which are in a drive connection with coaxially arranged adjusting wheels each having a central bore, an adjusting shaft which is axially displaceable and rotatable in the space formed by the central bores of the adjusting wheels is arranged and can be brought into a drive connection by axial displacement with each of the setting wheels, an actuating button attached to an end section of the setting shaft for shifting and rotating the setting shaft and a display device which is arranged in the housing in a manner parallel to the setting shaft and with one end section of the Adjustment shaft is connected so that it can rotate relative to it, but can only move axially together with it, the display device being assigned to the type holders so that their position can be seen which type holder is in the respective The axial position of the setting shaft can be adjusted via the drive connection between the latter and a setting wheel and between the setting wheel and the type carrier.

Aus der DE-OS 30 31 820 ist ein solches Druckwerk bekannt. Dieses Druckwerk ist für den Einsatz in einem Handetikettiergerät bestimmt, in dem es Selbstklebeetiketten mit einem Preisaufdruck o. dgl. versieht, die dann mittels des Etikettiergeräts an einem Warenartikel angebracht werden können. Zur Erzielung unterschiedlicher Preisaufdrucke müssen die einzelnen Typenträger im Druckwerk so verstellt werden, daß die gewünschten Drucktypen in die Druckposition gelangen. Diese Einstellung kann durch ein geeignetes Verdrehen und Verschieben der Einstellwelle mittels des Betätigungsknopfs erreicht werden. Der Betätigungsknopf steht seitlich am Gehäuse des Druckwerks vor, und er ragt im speziell genannten Anwendungsfall auch seitlich an dem Gehäuse des Handetikettiergeräts vor, damit die Einstellung der Drucktypen ohne Herausnehmen des Druckwerks aus dem Gerätegehäuse vorgenommen werden kann. Die der Kontrolle der jeweils durchzuführenden Einstellvorgänge dienende Anzeigevorrichtung ist mit dem den Betätigungsknopf tragenden Endabschnitt der Einstellwelle über einen Steg verbunden, der mittels einer Nabe den Endabschnitt umgibt, dann radial verläuft und an seinem Ende die parallel zur Achse der Einstellwelle verlaufende Anzeigevorrichtung trägt. Um dem Benutzer den Verstellvorgang der Typenträger zu erleichtern, ist es günstig, wenn der Betätigungsknopf möglichst gut zugänglich ist und weit seitlich aus dem Gehäuse heraussteht. Das weite Herausstehen ist allerdings bei der Handhabung des Etikettiergeräts nachteilig, da die Bedienungsperson leicht mit dem Betätigungsknopf an Gegenstände anstoßen oder irgendwo hängenbleiben -kann, was unter Umständen sogar zu einer Beschädigung des Druckwerks führen kann. Eine Verringerung des Überstandes des Betätigungsknopfs erschwert die Bedienung nicht unerheblich, da es dann vorkommen kann, daß die Bedienungsperson mit den den Bedienungsknopf erfassenden Fingern bei der durchzuführenden Drehbewegung an dem die Anzeigevorrichtung tragenden Steg hängenbleibt. Dies könnte nur bei einem Anfassen des Betätigungsknopfs mit den Fingerspitzen vermieden werden, was allerdings das Verdrehen erschwert. Bei dem bekannten Druckwerk wird zur Verbesserung der Bedienungsfreundlichkeit ein axial auf der Einstellwelle verschiebbarer Betätigungsknopf verwendet, der nach Durchführung der Einstellvorgänge wieder in eine weniger weit vorstehende Position verschoben werden kann. Die Verwendung des relativ zur Einstellwelle verschiebbaren Betätigungsknopfs ist allerdings ungünstig im Hinblick auf die eindeutige Zuordnung zwischen der Position des Betätigungsknopfs und der position der Anzeigevorrichtung. Die Bedienungsperson muß sich immer erst durch genaues Betrachten der Anzeigevorrichtung davon überzeugen, welche Position die Einstellwelle einnimmt, während bei Druckwerken mit axial unverschiebbarem Betätigungsknopf auch die Stellung des Knopfs zur Erkennung der Lage der Einstellwelle beiträgt. Das Verschieben des Betätigungsknopfs vor dem Verstellen der Einstellwelle ist ein zusätzlicher Bedienungsschritt, der besonders dann störend ist, wenn auf das bei vollständig eingeschobener Einstellwelle zu verstellende Einstellrad eingewirkt werden soll.Such a printing unit is known from DE-OS 30 31 820. This printing unit is intended for use in a hand-held labeling device by providing self-adhesive labels with a price imprint or the like, which can then be attached to an article of goods by means of the labeling device. To achieve different price imprints, the individual type carriers must be adjusted in the printing unit in such a way that the desired print types reach the printing position. This setting can be achieved by a suitable rotation and displacement of the setting shaft using the operating button. The actuation button protrudes on the side of the housing of the printing unit, and in the application specifically mentioned, it also projects on the side of the housing of the hand-held labeling device, so that the printing types can be set without removing the printing unit from the device housing. The display device used to control the adjustment processes to be carried out is connected to the end section of the adjustment shaft which carries the actuating button via a web which surrounds the end section by means of a hub, then runs radially and carries at its end the display device running parallel to the axis of the adjustment shaft. In order to make it easier for the user to adjust the type carrier, it is advantageous if the actuation button is as easily accessible as possible and protrudes far out of the housing. However, sticking out far is disadvantageous when handling the labeling device, since the operator can easily hit objects or get caught somewhere with the actuating button, which under certain circumstances can even damage the printing unit. A reduction in the protrusion of the actuating button makes the operation not inconsiderably difficult, since it can happen that the operator gets caught with the fingers gripping the operating button during the rotary movement to be carried out on the web carrying the display device. This could only be avoided by touching the control button with your fingertips, which, however, makes twisting difficult. In the known printing unit an axially displaceable actuating button is used to improve the ease of use, which can be moved back into a less protruding position after the setting operations have been carried out. However, the use of the actuating button, which can be displaced relative to the setting shaft, is disadvantageous with regard to the clear association between the position of the actuating button and the position of the display device. The operator must always first convince himself of the position of the adjusting shaft by looking closely at the display device, while in the case of printing units with an axially immovable actuating button the position of the button also contributes to the detection of the position of the adjusting shaft. Moving the operating button before adjusting the setting shaft is an additional operating step, which is particularly troublesome when the setting wheel to be adjusted when the setting shaft is fully inserted is to be acted on.

Daß ein weit vorstehender Knopf ein Problem ist, zu dessen Lösung ein Kompromiß zwischen Bedienungsfreundlichkeit und Vermeidung von Beschädigung gefunden werden muß, zeigt auch die in im Handel erhältlichen Geräten der Firma ESSELTE METO GMBH, Hirschhorn, angewendete Maßnahme. Bei einem solchen Gerät, das der Serie "METO NEW LINE" angehört und die Typenbezeichnung 5.26 trägt, ist an der Gehäusewand des Etikettiergeräts, in dem das Druckwerk angewendet wird, eine nach außen vorspringende Tasche angeformt, die weiter als der Betätigungsknopf am Druckwerk vorsteht. Wenn die Bedienungsperson mit dem Gerätegehäuse gegen einen Gegenstand stoßt, schutzt die Tasche den Betätigungsknopf vor Stößen, so daß in diesem Gerät ein relativ weit vorstehender Betätigungsknopf angewendet werden kann, wie es für die gute Bedienungsfreundlichkeit erwünscht ist.The measure used in commercially available devices from ESSELTE METO GMBH, Hirschhorn, also shows that a button protruding far is a problem, for the solution of which a compromise between ease of use and avoidance of damage must be found. In such a device, which belongs to the "METO NEW LINE" series and bears the type designation 5.26, an outwardly projecting pocket is formed on the housing wall of the labeling device in which the printing unit is used, which protrudes further than the actuation button on the printing unit. When the operator strikes an object with the device housing, the pocket protects the actuation button against impacts, so that a relatively protruding actuation button can be used in this device, as is desirable for good ease of use.

Der Erfindung liegt die Aufgabe zugrunde, ein Druckwerk der eingangs geschilderten Art so auszugestalten, daß eine gute Bedienungsfreundlichkeit bei seitlich wenig vorstehendem Bedienungsknopf erreicht wird.The invention has for its object to design a printing unit of the type described in such a way that a good ease of use is achieved with a little protruding button on the side.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Verbindung zwischen dem den Betätigungsknopf tragenden Endabschnitt der Einstellwelle und der Anzeigevorrichtung von einer kreisförmigen Kappe gebildet ist, die mit einer Nabe auf dem Endabschnitt der Einstellwelle gelagert ist und an deren Rand die Anzeigevorrichtung befestigt ist.This object is achieved according to the invention in that the connection between the end section of the adjusting shaft carrying the actuating button and the display device is formed by a circular cap which has a hub on the end section of the Adjustment shaft is mounted and on the edge of which the display device is attached.

Bei Verwendung der Kappe als Verbindungselement zwischen der Einstellwelle und der Anzeigevorrichtung ergibt sich angrehzend an den Betätigungsknopf in Richtung zur Einstellwelle hin eine geschlossene Fläche. Selbst wenn der Betätigungskhopf relativ schmal ausgebildet wird und nur sehr wenig vorsteht, besteht nicht die Gefahr, daß die Bedienungsperson beim Erfassen und Verdrehen des Bedienungsknopfs mit den Fingern an der Verbindung zwischen der Einstellwelle und der Anzeigevorrichtung hängenbleibt, da die Fingerkuppen an der von der Kappe gebildeten geschlossenen Fläche entlanggleiten. Eine besondere Sorgfalt der Bedienungsperson beim Anfassen des Betätigungsknopfs ist daher nicht erforderlich.When the cap is used as a connecting element between the setting shaft and the display device, a closed surface results when the actuating button is turned towards the setting shaft. Even if the actuating head is made relatively narrow and protrudes very little, there is no risk that the operator will get caught on the connection between the adjusting shaft and the display device when grasping and turning the operating knob with his fingers, since the fingertips on the cap slide along the formed closed surface. Special care of the operator when touching the operating button is therefore not necessary.

In einer vorteilhaften Weiterbildung der Erfindung hat die Kappe die Form eines sich zur Nabe hin verjüngenden Kegels. Durch diese Weiterbildung wird etwas mehr Platz für die Finger der Bedienungsperson beim Erfassen des Betätigungskhopfs geschaffen.In an advantageous development of the invention, the cap has the shape of a cone tapering towards the hub. This further development creates a little more space for the operator's fingers when grasping the actuating head.

Ein Ausführungsbeispiel der Erfindung wird nun unter Bezugnahme auf die Zeichnung beschrieben. Darin zeigen:

  • Fig. 1 einen Schnitt des erfindungsgemäßen Druckwerks längs der Linie I-I von Fig. 2,
  • Fig. 2 eine Ansicht der Seite des Druckwerks, an der der Betätigungsknopf ahgebracht ist, und
  • Fig. 3 eine Draufsicht auf das erfindungsgemäße Druckwerk in Richtung des Pfeils A in Fig. 2.
An embodiment of the invention will now be described with reference to the drawing. In it show:
  • 1 shows a section of the printing unit according to the invention along the line II of FIG. 2,
  • Fig. 2 is a view of the side of the printing unit, on which the actuating button is brought, and
  • 3 shows a plan view of the printing unit according to the invention in the direction of arrow A in FIG. 2.

Das in Fig. 1 dargestellte Druckwerk 10 enthält ein aus zwei Gehäusehälften 12 und 14 zusammengesetztes Druckwerksgehäuse, in dem mehrere parallel nebeneinander angeordnete, um Einstellräder 16 und eine Umlenkkante 18 herumgeführte, als Bänder ausgebildete Typenträger 20 untergebracht sind. Die Typenträger 20 tragen auf einer Hälfte ihrer Außenumfangsfläche Drucktypen 22 und auf der anderen Hälfte Anzeigetypen 24. Die Zuordnung der Drucktypen 22 zu den Anzeigetypen 24 ist so vorgenommen, daß jeweils Drucktypen 22, die sich gerade in der Druckstellung an der Umlenkkante 18 befinden, und Anzeigetypen 24, die durch ein an der Gehäuseoberseite angeordnetes Fenster 26 sichtbar sind, jeweils die gleiche Zahl, den gleichen Bustaben oder dergleichen darstellen. Dies bedeutet, daß an der Gehäuseoberseite durch das Fenster 26 hindurch jeweils zu erkennen ist, welches Zeichen mit den unten an der Umlenkkante befindlichen Drucktypen 22 auf einen Aufzeichnungsträger gedruckt werden kann.The printing unit 10 shown in FIG. 1 contains a printing unit housing composed of two housing halves 12 and 14, in which a plurality of type carriers 20, embodied as tapes, are arranged next to one another in parallel, guided around setting wheels 16 and a deflection edge 18. The type carriers 20 carry print types 22 on one half of their outer peripheral surface and display types 24 on the other half. The assignment of the print types 22 to the display types 24 is carried out in such a way that print types 22, which are currently in the printing position on the deflection edge 18, and Display types 24, which are visible through a window 26 arranged on the top of the housing, each represent the same number, the same bus letter or the like. This means that it can be seen on the top of the housing through the window 26 which character can be printed on the recording medium with the printing types 22 located at the bottom on the deflecting edge.

Wie bereits erwähnt wurde, sind die Typenträger 20 um Einstellräder 16 herumgeführt, die auf einer Hülse 28 drehbar gelagert sind. In der Hülse 28 ist wenigstens ein Schlitz 30 angebracht, der an dem in Fig. 1 rechts liegenden Hülsende offen ist. Durch diesen Schlitz greift ein Zahn 36 hindurch, der an einer Einstellwelle 42 angebracht ist. Die Einstellwelle 42 ist in einer Lagerdurchführung 44 in der Gehäusehälfte 14 axial verschiebbar gelagert. Durch Verschieben der Einstellwelle 42 in axialer Richtung kann diese Welle durch Eingriff des Zahns 36 in eine von mehreren Ausnehmungen 46 in den Nabenbereichen der Einstellräder 16 mit diesen in eine Antriebsverbindung gebracht werden.As already mentioned, the type carriers 20 are guided around setting wheels 16 which are rotatably mounted on a sleeve 28. At least one slot 30 is provided in the sleeve 28 and is open at the sleeve end on the right in FIG. 1. A tooth 36, which is attached to an adjusting shaft 42, extends through this slot. The setting shaft 42 is axially displaceably mounted in a bearing bushing 44 in the housing half 14. By displacing the setting shaft 42 in the axial direction, this shaft can be brought into a drive connection by engagement of the tooth 36 in one of a plurality of recesses 46 in the hub regions of the setting wheels 16.

An dem aus dem Gehäuse herausragenden Abschnitt 45 der Einstellwelle 42 ist ein Betätigungsknopf 48 angebracht, mit dessen Hilfe die Welle einerseits axial verschoben und andererseits gedreht werden kann. Durch die Axialverschiebung der Einstellwelle 42 wird der an ihr angebrachte Zahh 36 zunächst mit einer der Ausnehmungen 46 eines zu verstellenden Einstellrades 16 in Eingriff gebracht, und durch Drehen der Einstellwelle 42 wird dahn der um seinen Außenumfang herumgeführte Typenträger 20 so lange bewegt, bis sich eine gewünschte Drucktype 22 in Druckposition unterhalb der Umlenkkante 18 befindet. Wie bereits erwähnt wurde, kann die jeweilige Position der Drucktypen 22 durch das oben am Gehäuse angebrachte Fenster 26 kontrolliert werden. Zur Erzielung einer Antriebsverbindung zwischen den Typenträgern 20 und den Einstellrädern 16 weisen die Typenträger 20 an ihrer Innenfläche Zähne auf, die in Ausnehmungen in den Außenumfangsflächen der Einstellräder 16 eingreifen.An actuating button 48 is attached to the section 45 of the adjusting shaft 42 protruding from the housing, with the aid of which the shaft can be axially displaced on the one hand and rotated on the other hand. By the axial displacement of the adjusting shaft 42, the tooth 36 attached to it is first brought into engagement with one of the recesses 46 of an adjusting wheel 16 to be adjusted, and by rotating the adjusting shaft 42, the type carrier 20 guided around its outer circumference is moved until one Desired print type 22 is in the printing position below the deflection edge 18. As already mentioned, the respective position of the print types 22 can be checked through the window 26 attached to the top of the housing. To achieve a drive connection between the type carriers 20 and the setting wheels 16, the type carriers 20 have teeth on their inner surface, which engage in recesses in the outer peripheral surfaces of the setting wheels 16.

Zur Erzielung einer genauen Ausrichtung der Ebene des Zahns 36 auf die Ebene des jeweils zu verstellenden Einstellrades 16 ist ein Rastmechanismus vorgesehen, der dafür sorgt, daß die Einstellwelle bei ihrer Axialverstellung jeweils in einer für die Bedienungsperson deutlich spürbaren Weise in Positionen einrastet, in denen eine eindeutige Antriebsverbindung mit einem zu verstellenden Einstellrad 16 hergestellt ist. Dieser Rastmechanismus enthält einen an der Hülse 28 einstückig angeformten Rastfinger 54, der an der Hülseninnenfläche radial nach innen vorsteht und in Rastausnehmungen 56 eingreift, die in einem Bereich der Außenumfangsfläche der Einstellwelle 42 gebracht sind. Für jedes der auf der Hülse 28 gelagerten Einstellräder 16 ist eine Rastausnehmuhg 56 vorgesehen. Wenn in der in Fig. 1 dargestellten Anordnung der Einzelteile, in der die Einstellwelle 42 mit dem am weitesten links liegenden Einstellrad 16 in Eingriff steht, die Einstellwelle 42 nach rechts bewegt wird, damit sie beispielsweise mit dem nächsten Einstellrad 16 in Eingriff kommt, muß zunächst die vom Rastfinger 54 auf die Einstellwelle 42 ausgeübte Rastkraft überwunden werden, wenn er aus der zugehörigen Rastausnehmung 56 heraus in der Darstellung von Fig. 1 nach oben bewegt wird; anschließend kann er dann in die nächste Rastausnehmung 56 einfallen, was genau dann eintritt, wenn die Einstellwelle 42 mit dem zweiten Einstellrad 16 von links in Eingriff steht.In order to achieve a precise alignment of the plane of the tooth 36 with the level of the adjusting wheel 16 to be adjusted in each case, a latching mechanism is provided which ensures that the adjusting shaft engages in positions in one position in which it can be clearly felt by the operator unique drive connection is made with an adjustment wheel 16 to be adjusted. This locking mechanism contains a locking finger 54 integrally formed on the sleeve 28, which projects radially inward on the inner surface of the sleeve and engages in locking recesses 56 which are provided in a region of the outer peripheral surface of the adjusting shaft 42. A latching recess 56 is provided for each of the setting wheels 16 supported on the sleeve 28. In the arrangement of the parts shown in FIG. 1, in which the setting shaft 42 is engaged with the leftmost setting wheel 16, the setting shaft 42 is moved to the right so that it comes into engagement with the next setting wheel 16, for example first the latching force exerted by the latching finger 54 on the adjusting shaft 42 is overcome when it is moved upward out of the associated latching recess 56 in the illustration in FIG. 1; it can then fall into the next latching recess 56, which occurs precisely when the setting shaft 42 is in engagement with the second setting wheel 16 from the left.

Wie aus Fig. 1 hervorgeht, erstreckt sich die Einstellwelle 42 in dem unmittelbar an dem Betätigungsknopf 48 angrenzenden Abschnitt 45 durch eine Nabe 62, die an einer konischen Kappe 64 angebracht ist. Diese Kappe trägt einen das Fenster 26 umgebenden Rahmen 27, der oben am Gehäuse verschiebbar gelagert ist. Wenn die Einstellwelle 42 axial verschoben wird, bewegt sich der Rahmen 27 mit dem Fenster 26 mit, wobei das in Fig. 1 links liegende Ende des Sichtfensters jeweils im Bereich der Ebene des Einstellrades 16 liegt, mit dem die Einstellwelle 42 in Eingriff steht. Der Rahmen 27 bildet somit mit seinem Fenster 26 eine Anzeigevorrichtung, und durch Beobachten des linken Endes des Fensters 26 weiß die Bediehuhgsperson somit in jeder Axialstellung der Einstellwelle 42, welcher Typenträger 20 gerade in die gewünschte Stellung gebracht werden kann. Ein in Fig. 3 erkennbarer Markierungspfeil 29 am Rahmen 27 erleichtert das Erkennen des gerade zu verstellenden Typenträgers 20.As can be seen from FIG. 1, the setting shaft 42 extends in the section 45 directly adjacent to the actuating button 48 through a hub 62 which is attached to a conical cap 64. This cap carries a frame 27 surrounding the window 26, which is slidably mounted on the top of the housing. If the Setting shaft 42 is axially displaced, the frame 27 moves with the window 26, the end of the viewing window on the left in FIG. 1 being in the region of the plane of the setting wheel 16 with which the setting shaft 42 is engaged. The frame 27 thus forms a display device with its window 26, and by observing the left end of the window 26, the operator knows in every axial position of the setting shaft 42 which type carrier 20 can just be brought into the desired position. A marking arrow 29 recognizable in FIG. 3 on the frame 27 facilitates the identification of the type carrier 20 that is to be adjusted.

Damit die Bedienungsperson beim Verdrehen der Einstellräder und bei dem damit vorgenommenen Verstellen der Typenträger 20 die einzelnen Verstellvorgänge stets so weit durchführt, bis sich eine Drucktype 22 exakt in der Druckposition an der Umlenkkante 18 befindet, ist ein weiterer Rastmechanismus vorgesehen, der der Bedienungsperson das exakte Einstellen erleichtert. Dieser Rastmechanismus besteht aus einer Schraubenfeder 66, die parallel zur Längsachse der Einstellwelle 42 so am Umfang der Einstellräder 16 ahgeordnet ist, daß sie in die Ausnehmungen 52 am Umfang der Einstellräder 16 teilweise eindringt, was in Fig. 1 deutlich zu erkennen ist. Damit die Einstellräder 16 verdreht werden können, obwohl die Schraubenfeder 66 in ihre Ausnehmungen eingreift, ist die Schraubenfeder 66 auf einem elastisch nachgiebigen Polster 68 gelagert. Beim Verdrehen der Einstellräder 16 kann die Schraubenfeder 66 auf diese Weise ausweichen und sich dabei in das Polster 68 hineindrükkeh. Die Bedienungsperson spürt dadurch beim Verdrehen der Einstellräder in eine position, in der ein zwischen den Ausnehmungen 52 liegender Zahn zur Schraubenfeder 66 hin bewegt wird, zunächst eine Zuhahme der aufzuwendenden Verdrehkraft, die dann wieder abnimmt, wenn die Schraubenfeder in die nächste Ausnehmung 52 eindringt. Die Bedienungsperson spürt also deutliche Kraftspitzen, und sie weiß, daß immer dann, wenn sie eine Kraftspitze überwunden hat, eine Drucktype 22 sich in der exakten Druckposition unterhalb der Umlenkkante 18 befindet.In order for the operator to carry out the individual adjustment processes when turning the setting wheels and thereby adjusting the type carrier 20 until a printing type 22 is exactly in the printing position on the deflection edge 18, a further latching mechanism is provided which provides the operator with the exact information Setting made easier. This locking mechanism consists of a helical spring 66 which is arranged parallel to the longitudinal axis of the adjusting shaft 42 on the circumference of the adjusting wheels 16 in such a way that it partially penetrates into the recesses 52 on the circumference of the adjusting wheels 16, which can be clearly seen in FIG. 1. So that the setting wheels 16 can be rotated, although the coil spring 66 engages in its recesses, the coil spring 66 is mounted on an elastically flexible cushion 68. When the setting wheels 16 are turned, the helical spring 66 can deflect in this way and thereby push into the cushion 68. As a result, when the adjusting wheels are turned into a position in which a tooth lying between the recesses 52 is moved toward the coil spring 66, the operator initially feels an increase in the torsional force to be used, which then decreases again when the coil spring penetrates into the next recess 52. The operator therefore feels significant force peaks, and he knows that whenever he has overcome a force peak, a type of pressure 22 is in the exact printing position below the deflection edge 18.

Die den Abschnitt 45 der Einstellwelle 42 mit dem das Fenster 26 enthaltenden Rahmen 27 verbindende Kappe 64 hat gemäß Fig. 1 und Fig. 3 einen zum Betätigungsknopf hin konischen Verlauf. Sie deckt gemäß Fig. 2 deh oberen Teil des Druckwerks vollständig ab, wenn die Einstellwelle 42 ganz in das Druckwerk eingeschoben ist, wie dies in den Fig. 1 und 3 der Fall ist. Da die Kappe 64 eine geschlossene Fläche bildet, wird das Anfassen und Verdrehen des Betätigungsknopfs 48 nicht behindert, auch wenn der Betätigungsknopf 48 relativ schmal ausgebildet wird, so daß die Fingerkuppen der Bedienungsperson nach innen in Richtung zur Kappe 64 über den Betätigungsknopf 48 hinausragen. Die Fingerkuppen können beim Verdrehen des Betätigungsknopfs 48 ohne weiteres an der glatten Außenfläche der Kappe 64 entlanggleiten. Der seitliche Überstand und die Dicke des Betätigungsknopfs könhen daher klein gehalten werden. Durch Verwendung der konischen Kappe 64 wird außerdem die Stabilität der Verbindung zwischen der Einstellwelle 42 und dem Rahmen 27 erheblich verbessert.The cap 64 connecting the section 45 of the adjusting shaft 42 with the frame 27 containing the window 26 has a conical shape toward the actuating button according to FIGS. 1 and 3. 2 completely covers the upper part of the printing unit when the setting shaft 42 is pushed completely into the printing unit, as is the case in FIGS. 1 and 3. Since the cap 64 forms a closed surface, the touching and twisting of the actuation button 48 is not impeded, even if the actuation button 48 is made relatively narrow, so that the fingertips of the operator protrude inward towards the cap 64 beyond the actuation button 48. The fingertips can easily slide along the smooth outer surface of the cap 64 when the actuating button 48 is turned. The side projection and the thickness of the actuation button can therefore be kept small. By using the conical cap 64, the stability of the connection between the adjusting shaft 42 and the frame 27 is also considerably improved.

Wie die Fig. 2 und 3 erkennen lassen, trägt die Kappe 64 auch sehr gut dazu bei, das Druckwerk gegen das Eindringen von Verunreinigungen zu schützen, .da im vollständig eingeschobenen Zustand der Einstellwelle deren Lagerbereich gut abgeschlossen ist.As can be seen in FIGS. 2 and 3, the cap 64 also contributes very well to protecting the printing unit against the ingress of contaminants, since the bearing area is well closed in the fully inserted state of the adjusting shaft.

Nach Fig. 1 trägt die Kappe 64 an ihrem dem Rahmen 27 diametral gegenüberliegenden Ende einen Stift 70, der durch eine Durchführung 72 in der Gehäusehälfte 14 hindurch in den von der Schraubenfeder 66 umgebenen Hohlraum ragt. Dieser Stift 70 trägt unter anderem zu einer Verbesserung der Führung der Kappe 64 bei, da deren Rand damit an zwei diametral gegenüberliegenden Stellen beim axialen Verschieben der Einstellwelle geführt wird. Das beschriebene Druckwerk ist dafür bestimmt, in einem Handetikettiergerät eingesetzt zu werden, in der es auf Selbstklebeetiketten Preisaufdrucke u. dgl. erzeugen kann, indem es relativ zum Gehäuse des Geräts in der Ansicht von Fig. 1 nach unten bewegt wird. Die Wand des Gerätegehäuses läuft dabei im Abstand parallel zur Druckwerk-Gehäusehälfte 14, und sie ragt bis kurz unter den Stift 70. Wenn die Einstellwelle 42 aus der in Fig. 1 dargestellten Position nach rechts verschoben wird, damit die weiter rechts liegenden Typenträger 20 verstellt werden können, ragt der Betätigungsknopf unerwünscht weit aus dem Gehäuse des Etikettiergeräts heraus. Der Stift 70 verhindert in dieser Position der Einstellwelle eine Betätigung des Etikettiergeräts, die mit einem Absenken des Druckwerks verbunden ist. Beim Absenken des Druckwerks stößt der Stift 70 nämlich gegen die Wand des Gerätegehäuses, so daß die Bedienungsperson daran erinnert wird, die Einstellwelle erst wieder in die in Fig. 1 dargestellte Position zu bringen, bevor sie das Gerät erneut betätigt.1, the cap 64 carries at its end diametrically opposite the frame 27 a pin 70 which projects through a passage 72 in the housing half 14 into the cavity surrounded by the coil spring 66. This pin 70 contributes, inter alia, to an improvement in the guidance of the cap 64, since its edge is thus guided at two diametrically opposite points when the adjusting shaft is axially displaced. The printing unit described is intended to be used in a hand-held labeling device, in which price labels and the like can be found on self-adhesive labels. Like. Can produce by moving it downward relative to the housing of the device in the view of Fig. 1. The wall of the device housing runs parallel to the printing unit housing half 14 at a distance, and it protrudes until just below the pin 70. When the setting shaft 42 is shifted from the position shown in FIG. 1 to the right, so that the type carrier 20 located further to the right is displaced can be, the operating button protrudes undesirably far from the housing of the labeling device. In this position of the setting shaft, pin 70 prevents actuation of the labeling device, which is associated with a lowering of the printing unit. When the printing unit is lowered, the pin 70 bumps against the wall of the device housing, so that the operator is reminded to bring the adjusting shaft back into the position shown in FIG. 1 before actuating the device again.

Der konische Verlauf der Kappenaußenfläche kann dazu ausgenützt werden, in Zusammenwirkung mit der Wand des Geräteghäuses eine automatische Rückstellung der Einstellwelle in die vollständig eingeschobene Position zu bewirken, wenn das Druckwerk beim Betätigen des Geräts abgesenkt wird und die Einstellwelle noch geringfügig herausgezogen ist.The conical shape of the outer surface of the cap can be used in conjunction with the wall of the device housing to automatically reset the setting shaft to the fully retracted position when the printing unit is lowered when the device is actuated and the setting shaft is still slightly pulled out.

Claims (4)

1. Printing mechanism comprising a housing in which a plurality of type carriers are disposed, which are in a drive connection with coaxially arranged setting wheels each having a center bore, a setting shaft, which is arranged axially displaceably and rotatably in the space formed by the center bores of the setting wheels and adapted to be brought by axial displacement into a drive connection with each of the setting wheels, an actuating knob disposed on an end portion of the setting shaft for displacement and rotation of the setting shaft end an indicating means disposed in the housing displaceable in parallel to the setting shaft and connected to one end of the setting shaft in such a manner that the latter can rotate relatively thereto, but is only displaceable jointly therewith, the indicating means being associated with the type carriers in such a manner that its position shows which type carrier in the respective axial position of the setting shaft can be adjusted via the drive connection between the latter and a setting wheel and between the setting wheel and the type carrier, characterized in that the connection between the end portion (45) of the setting shaft (42) carrying the actuating knob (48) and the indicating means (26, 27) is formed by a circular cap (64) which is journaled on the end portion (45) of the setting shaft (42) by means of a hub (62) and on the edge of which the indicating means (26, 27) is secured.
2. Printing mechanism according to claim 1, characterized in that the cap (64) has the form of a cone tapering towards the hub (62).
3. Printing mechanism according to claim 1 or 2, characterized in that the indicating means (26, 27) is made integral with the cap (64).
4. Printing mechanism according to any one of the preceding claims, characterized in that at the edge of the cap (64) at a point diametrically opposite the display means (26, 27) a pin (70) is integrally formed which extends parallel to the setting shaft (42) and projects into a passage (72) disposed in the housing (14).
EP85101477A 1984-02-24 1985-02-12 Printing unit Expired - Lifetime EP0154211B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101477T ATE52459T1 (en) 1984-02-24 1985-02-12 PRINT UNIT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3406776 1984-02-24
DE3406776A DE3406776C1 (en) 1984-02-24 1984-02-24 Printing unit

Publications (3)

Publication Number Publication Date
EP0154211A2 EP0154211A2 (en) 1985-09-11
EP0154211A3 EP0154211A3 (en) 1987-06-03
EP0154211B1 true EP0154211B1 (en) 1990-05-09

Family

ID=6228752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101477A Expired - Lifetime EP0154211B1 (en) 1984-02-24 1985-02-12 Printing unit

Country Status (5)

Country Link
US (1) US4583456A (en)
EP (1) EP0154211B1 (en)
JP (1) JPS60203484A (en)
AT (1) ATE52459T1 (en)
DE (2) DE3406776C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4207755A1 (en) * 1992-03-11 1993-09-23 Foldenauer Willi PEN-LIKE DEVICE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US30749A (en) * 1860-11-27 Improvement in seeding-machines
DE1929307C3 (en) * 1969-06-10 1975-09-04 Meto-Gesellschaft Oscar Kind Mbh, 6932 Hirschhorn Printing or stamping device with type tapes
JPS5848355B2 (en) * 1976-04-10 1983-10-27 株式会社サト−研究所 printing device
DE2838964C3 (en) * 1978-09-07 1981-05-14 Esselte Pendaflex Corp. (n.d. Ges.d. Staates Calif.), Garden City, N.Y. Printing unit, in particular for price labeling devices
US4269119A (en) * 1979-08-27 1981-05-26 Monarch Marking Systems, Inc. Setting knobs for selective print head
US4325302A (en) * 1979-10-29 1982-04-20 Esselte Pendaflex Corp. Apparatus for printing and applying pressure sensitive labels
DE3034923C2 (en) * 1980-09-16 1983-09-08 Esselte Pendaflex Corp., 11530 Garden City, N.Y. Ribbon printing unit

Also Published As

Publication number Publication date
JPS60203484A (en) 1985-10-15
DE3406776C1 (en) 1985-11-28
EP0154211A3 (en) 1987-06-03
EP0154211A2 (en) 1985-09-11
DE3577529D1 (en) 1990-06-13
JPH0230872B2 (en) 1990-07-10
ATE52459T1 (en) 1990-05-15
US4583456A (en) 1986-04-22

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