EP0033532B1 - Ink ribbon cartridge for a typewriter or the like - Google Patents

Ink ribbon cartridge for a typewriter or the like Download PDF

Info

Publication number
EP0033532B1
EP0033532B1 EP81100710A EP81100710A EP0033532B1 EP 0033532 B1 EP0033532 B1 EP 0033532B1 EP 81100710 A EP81100710 A EP 81100710A EP 81100710 A EP81100710 A EP 81100710A EP 0033532 B1 EP0033532 B1 EP 0033532B1
Authority
EP
European Patent Office
Prior art keywords
ribbon
cassette
drive
roller
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81100710A
Other languages
German (de)
French (fr)
Other versions
EP0033532A3 (en
EP0033532A2 (en
Inventor
Alfred Keiter
Wolfgang Mudder
Bernd Tappehorn
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.)
Olympia AG
Original Assignee
Olympia Werke AG
Olympia AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6093624&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0033532(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Olympia Werke AG, Olympia AG filed Critical Olympia Werke AG
Priority to AT81100710T priority Critical patent/ATE9560T1/en
Publication of EP0033532A2 publication Critical patent/EP0033532A2/en
Publication of EP0033532A3 publication Critical patent/EP0033532A3/en
Application granted granted Critical
Publication of EP0033532B1 publication Critical patent/EP0033532B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J33/00—Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/14—Ribbon-feed devices or mechanisms
    • B41J33/36—Ribbon-feed devices or mechanisms with means for adjusting feeding rate

Definitions

  • the invention relates to an ink ribbon cassette for a typewriter or similar office machine with a housing of the type specified in the preamble of claim 1.
  • Typewriters or similar machines with an ink ribbon cassette generally use either textile ink ribbons, which are transported from one spool to the other or as an endless ribbon loop several times at the printing station, or simple carbon ribbons, which run through the machine only once, since each surface part of them Ribbons can only be used once for printing, or multi-carbon ribbons can be used, which also only run through the machine once, but in which individual surface sections provide a repeated print.
  • textile ribbons the size of the feed step is not so important, since each surface section of the ribbon is used several times.
  • the feed step must be an entire character width, while in the case of multi-carbon ribbons a drive device for the ribbon is required for their economical use, which produces a lower step feed.
  • the cassette In order to automatically switch a drive device for the ink ribbon to the respectively required operating mode simply by inserting the respective ink ribbon cassette, in a known drive device (DE-B 1611 454) the cassette has a training feature that changes the size of the transport step depending on the type of ink ribbon in it .
  • the transport roller arranged on the machine side is preceded by a transmission gear, which is inevitably switchable by the training feature of the cassette which changes the transport step, so that in one case a longitudinal transport step corresponding to the width of the type struck and in the other case causing an overlap of the type impressions on the ink ribbon is generated .
  • DE-A-28 10 768 discloses a drive device for an ink ribbon arranged in a cassette, the ink ribbon being fed by driving a drive roller.
  • This drive roller is connected to a device arranged on the machine side for generating a step feed of the ink ribbon which differs depending on the ink ribbon type.
  • this device On the output side, this device has two gear parts rotating at different peripheral speeds, of which only one gear part can be coupled to the transport roller arranged on the cassette side when the respective cassette is placed on it.
  • the coupling of the gearwheel firmly connected to the cassette with the other gearwheel arranged on the machine side is not always trouble-free, since the parts to be coupled are not always exactly in position with one another.
  • the removable cassette for a carbon band of typewriters and other office machines known from DE-A-2553329 does indeed have a gearwheel which interacts with the outermost turn of the take-up reel and can be driven by a drive element arranged on the machine side.
  • this known arrangement only allows a constant ribbon transport step and does not provide any possibility of driving the ribbon differently depending on the type of ribbon.
  • This known arrangement also does not allow optimal use of the storage space for the supply and take-up spools, since the toothed roller and the pivoting lever for the take-up spool are also arranged in the storage space.
  • the invention has for its object to provide an ink ribbon cassette by means of which a switching of the transport step depending on the type of ribbon can be initiated automatically when inserted into the receiving device of the machine.
  • the switching device required for this should also consist of simple and inexpensive parts to be assembled and manufactured. This object is achieved by the invention characterized in claim 1.
  • the transport step is also automatically determined when a new ribbon cassette is inserted, without any special manual actuation of the increment switching device being necessary. It is also possible to produce a common cassette housing for ribbon cassettes with different types of ribbon. This significantly reduces manufacturing and storage costs.
  • an ink ribbon cassette 1 is arranged ready for operation on a recording device 3 of a typewriter or similar office machine, which ver along a recording medium 5 is slidably arranged.
  • the record carrier 5 is arranged so that it can be transported in a known manner via a paper roller 7.
  • the ribbon or carbon ribbon 11 emerging from an exit slot 9 of the ribbon cassette 1 is unwound from a supply spool 13 and passed between the recording medium 5 and a type carrier 21 via a tensioning lever 15 and ribbon guide forks 17, 19.
  • the type carrier 21 is, for. B. a type plate with a plurality of radial slots, whereby elastic webs are formed, at the ends of which a type is arranged.
  • the setting of the type plate 21 takes place via a motor, not shown, which is also arranged on the receiving device 3.
  • the printing of a character takes place via a displaceably mounted hammer on the receiving device 3, which z. B. is driven by an electromagnet.
  • the ink ribbon 11 is pulled back into the cassette 1 by means of a drivable drive roller 23 and a pressure roller 25 which can be pressed against it, through an entry slot 27 and fed to a take-up reel 29.
  • the drive roller 23 is rotatably mounted on the one hand in the base plate 31 and on the other hand in the cover 33 of the cassette. At its end facing the cover 33, the drive roller 23 has a circumferential flange 35 which prevents the ink ribbon from touching the cover 33. Furthermore, near the ink ribbon entry point 27, a deflection roller 37 designed as a deflection guide is rotatably mounted in the cassette housing, by means of which a larger wrap of the ink ribbon 11 around the drive roller 23 is made possible. This deflection roller 37 also has a projecting flange 39, which ensures exact guidance of the ink ribbon 11.
  • the base plate 31 has guide surfaces 40 inclined towards the drive roller 23 and the deflection guides 37 in the region of the ink ribbon entry point 27. This ensures exact guidance of the ink ribbon 11.
  • the ink ribbon 11 is raised into the printing position by means of a lifting device (not shown) in order to produce an impression and, after the impression, is lowered into a visual position which releases the printing line.
  • the ink ribbon 11 is pivoted in the ink ribbon inlet slot 27 about a guide rib 42 arranged transversely behind it in the cartridge housing, thereby avoiding extensive contamination of the cartridge 1 and the machine.
  • This deflection guide 38 which is firmly connected to the base plate 31 of the cassette housing, ensures tight winding of the ink ribbon onto the take-up spool 29.
  • the free end of this deflection guide 38 is supported in the cover 33 by guide ribs 32 and 34.
  • the rib 34 and the flange 2 of the take-up spool 29 prevent the ink ribbon 11 from moving in height during the deflection around the deflection guide 38 and from coming into contact with the cover 33.
  • the top of the individual turns therefore forms a smooth surface after the winding process.
  • the pressure roller 25 is rotatably mounted on a pivot lever 26 which is pivotally mounted on the receiving device 3 about an axis 28.
  • This pivot lever 26 is designed with two arms, the pressure roller 25 being rotatably mounted on one arm 24 and the other arm 22 having a control cam with a latching recess 18 for a latching bolt 16.
  • This locking pin 16 is fixedly arranged on a locking lever 12 pivotally mounted about an axis 14 with a handle 10.
  • the pivot lever 26 can be reset by an articulated spring 8 in the counterclockwise direction about the axis 28.
  • the drive roller 23 and the pressure roller 25 have smooth surfaces and consist of polyurethane elastomers.
  • the surface of the drive roller 23 consists of a polyelastomer z. B. "Hytrel” "with a Shore hardness A 75-95, which ensures an exact transport of the ink ribbon 11 in other temperature ranges without the ink ribbon 11 sticking to the drive roller 23.
  • the drive roller 23 has an axial slot 6 accessible from below for engagement of the axially displaceable, knife-like drive element 4.
  • This drive element 4 is positively connected to a drive gear 41 of a ratchet mechanism and is rotatably mounted on the receiving device 3.
  • This drive gear 41 is arranged to be driven in a clockwise direction 45 via a drive pawl 43.
  • This drive pawl 43 is formed in one piece with a swivel lever 47 from a plastic part and is pivotably mounted on the receiving device 3 about the axis 49 of the drive gear 41. According to FIG. 7, the pivot lever 47 can be positively coupled to a drive lever 53 pivotable about an axis 51, on which a drive cam 55 is rotatably mounted.
  • This drive cam 55 is acted upon by an eccentrically articulated spring 57 in the counterclockwise direction and, by the interaction of its stop 59 with a release lug 61, a release pawl 63 is kept out of engagement with a gear 65 which can be driven by a drive motor 64, see FIG. 7.
  • the release pawl 63 is via a pull rod 67 connected to a pivot lever 68 which has an armature 69 for an electromagnet 71. If the electromagnet 71 is energized, the pivot lever 68 is pulled against the force of the return spring 73, the release pawl 63 being pivoted clockwise about an axis 75.
  • the ink or carbon ribbon 11 is drawn off from the supply reel 13 and rewound onto it by means of the winding reel 29 driven by the coil spring 79.
  • the release pawl 63 is returned to the starting position according to FIG. 7, the drive cam 55 being brought out of engagement again with the rotating gear 65.
  • the drive lever 53 and the swivel lever 47 are also returned to the starting position, with the drive gear 41 being prevented from rotating counterclockwise by a pawl 83.
  • the position of the guide pin 85 on the drive lever 53 can be changed to change the angle of rotation of the pivoting lever 47.
  • the guide pin 85 is displaceable in a radial slot 87 in the pivoting lever and can be locked in different locking points 89, 91 on the drive lever 53.
  • the guide pin 85 is fixed to a rocker arm 95 which is slidably and pivotably mounted on the drive lever 53.
  • the rocker arm 95 can be displaced and locked on the one hand with the guide pin 85 in a slot 97 with the bearing points 89, 91 and on the other hand can be moved in a second slot 99 with an articulated block 98.
  • the second slot 99 is arranged perpendicular to the first slot 97.
  • the adjustment lever is locked in the two end positions 89 and 93 by a spring 101 stretched between the rocker arm 95 and the drive lever 53.
  • the pivoting of the rocker arm from the latching position 91 into the latching position 89 takes place via an intermediate lever 102 according to FIG Axis 103 is pivotally arranged in the receiving device 3.
  • the intermediate lever 102 has a recess 104 on a first arm 105, the guide pin 85 and has a stop arm 106 on a second arm 107, which is operatively connected to a recess 108 on the pivot lever 26 for the pressure roller 25.
  • the pivot lever 12 is pivoted about the axis 14 in a counterclockwise direction via the handle 10.
  • the pivot lever 26 is pivoted clockwise about the axis 28 until the stop pin 16 has reached the latching recess 18.
  • the locking takes place against the return spring 8, which is articulated on the pivot lever 26 and acts counterclockwise. Since the pressure roller 25 is pivoted out of the cassette housing in the latching position of the pivoting lever 26, the cassette 1 can be removed from the receiving device 3.
  • the insertion of a new cassette takes place in the reverse manner, the pivot levers 12 and 26 being released after the insertion of a cassette with a single carbon band according to FIG.
  • the pivot lever 26 is pivoted by the return spring 8 so far in the counterclockwise direction until the pressure roller 25 comes into contact with the drive roller 23.
  • the swivel lever moves from position I to position II according to FIG. 1, the stop pin 106 on the intermediate lever 102 not yet being acted on, as a result of which the rocker arm 95 remains in the latching position 91 shown in FIG. 7.
  • the pivot lever 47 is pivoted to such an extent that the gear 41 is carried along via the drive pawl 43 to such an extent that the large step size required for single carbon bands is achieved. Each part of the carbon band may only be used once for printing.
  • a drive roller 110 is used in the cassette housing, which has a smaller diameter than that of the drive roller 23 for single carbon tapes.
  • the pivot lever 26 can be pivoted from position I to position 111, the intermediate lever 102 being pivoted counterclockwise about the axis 103 by striking the recess 108 against the stop pin 106.
  • the rocker arm 95 is pivoted from the locking position 91 into the locking position 89. Since the guide pin 85 is now effective on a longer lever arm of the pivot lever 47, the latter is pivoted by a correspondingly smaller angular path.
  • the drive gear 41 and the drive roller 110 firmly connected to it are driven by a correspondingly smaller angular path in such a way that the types struck one after the other are brought into overlapping contact with the ink ribbon.
  • the lower step feed rate ensures that the multiple carbon belt is used economically.
  • the step size changeover of the ratchet mechanism takes place automatically with the release of the pivot lever 26 with the pressure roller 25.
  • the smooth surfaces of the drive roller 23 and the pressure roller 25 prevent contamination of the machine.

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Pens And Brushes (AREA)

Abstract

A feed mechanism for advancing an ink ribbon, supported in a cartridge which is inserted into a typing machine, in feeding steps whose length is determined in dependence upon the type of the ribbon, the mechanism including: a feed roller rotatably mounted in the cartridge for engaging the ribbon to advance it in feeding steps, the roller being selected from a plurality of rollers having respectively different diameters on the basis of the type of the ribbon; a driving device mounted in the machine and including a pressure roller movable into a position against the feed roller when the cartridge is inserted in the machine; and a mechanism for rotating the feed roller in angular steps for advancing the ribbon in corresponding feeding steps, which mechanism is settable for causing each angular step of rotation of the feed roller to have a selected one of at least two different magnitudes, each magnitude corresponding to a respectively different ribbon feeding step length, and is coupled to the pressure roller in a manner to be set to produce angular rotation steps of a selected magnitude in dependence on the position of the pressure roller when it is in its position against the feed roller, whereby the magnitude of each ribbon feeding step is automatically determined as a function of the diameter of the selected feed roller.

Description

Die Erfindung betrifft eine Farbbandkassette für eine Schreib- oder ähnliche Büromaschine mit einem Gehäuse der im Oberbegriff des Anspruchs 1 angegebenen Art.The invention relates to an ink ribbon cassette for a typewriter or similar office machine with a housing of the type specified in the preamble of claim 1.

Bei Schreib- oder ähnlichen Maschinen mit Farbbandkassetten werden im allgemeinen entweder Textilfarbbänder, die von einer Spule zur anderen oder als endlose Bandschleife mehrmals an der Druckstation vorbeitransportiert werden, oder Einfach-Karbonbänder, die nur ein einziges Mal durch die Maschine laufen, da jeder Flächenteil dieser Farbbänder nur einmal zum Abdruck verwendet werden kann, oder Multi-Karbonbänder verwendet, die ebenfalls nur ein einziges Mal durch die Maschine laufen, aber bei denen einzelne Flächenabschnitte einen mehrmaligen Abdruck liefern. Bei den Textilfarbbändern ist die Größe des Vorschubschrittes nicht so wichtig, da jeder Flächenabschnitt des Farbbandes mehrmals benutzt wird. Bei Einfach-Karbonbändern muß der Vorschubschritt eine ganze Zeichenbreite betragen, während bei Multi-Karbonbändern zu ihrer wirtschaftlichen Ausnutzung eine Antriebseinrichtung für das Farbband benötigt wird, die einen geringeren Schrittvorschub erzeugt.Typewriters or similar machines with an ink ribbon cassette generally use either textile ink ribbons, which are transported from one spool to the other or as an endless ribbon loop several times at the printing station, or simple carbon ribbons, which run through the machine only once, since each surface part of them Ribbons can only be used once for printing, or multi-carbon ribbons can be used, which also only run through the machine once, but in which individual surface sections provide a repeated print. In the case of textile ribbons, the size of the feed step is not so important, since each surface section of the ribbon is used several times. In the case of single carbon ribbons, the feed step must be an entire character width, while in the case of multi-carbon ribbons a drive device for the ribbon is required for their economical use, which produces a lower step feed.

Um eine Antriebseinrichtung für das Farbband allein durch Einsetzen der jeweiligen Farbbandkassette automatisch auf die jeweils erforderliche Betriebsart umzuschalten, weist bei einer bekannten Antriebsvorrichtung (DE-B 1611 454) die Kassette ein in Abhängigkeit von der in ihr befindlichen Farbbandart die Größe des Transportschrittes änderndes Ausbildungsmerkmal auf. Der maschinenseitig angeordneten Transportrolle ist dabei ein Übersetzungsgetriebe vorgeschaltet, welches durch das den Transportschritt ändernde Ausbildungsmerkmal der Kassette zwangsläufig umschaltbar ist, so daß in einem Fall ein der Breite der angeschlagenen Type entsprechender und im anderen Fall eine Überlappung der Typenabdrücke auf dem Farbband hervorrufender Längstransportschritt erzeugt wird.In order to automatically switch a drive device for the ink ribbon to the respectively required operating mode simply by inserting the respective ink ribbon cassette, in a known drive device (DE-B 1611 454) the cassette has a training feature that changes the size of the transport step depending on the type of ink ribbon in it . The transport roller arranged on the machine side is preceded by a transmission gear, which is inevitably switchable by the training feature of the cassette which changes the transport step, so that in one case a longitudinal transport step corresponding to the width of the type struck and in the other case causing an overlap of the type impressions on the ink ribbon is generated .

Weiterhin ist durch die DE-A-28 10 768 eine Antriebsvorrichtung für ein in einer Kassette angeordnetes Farbband bekannt, wobei der Vorschub des Farbbandes durch Antrieb einer Antriebsrolle erfolgt. Diese Antriebsrolle ist mit einer maschinenseitig angeordneten Einrichtung zum Erzeugen eines in Abhängigkeit von der Farbbandart unterschiedlichen Schrittvorschubs des Farbbandes verbunden. Diese Einrichtung weist abtriebsseitig zwei mit unterschiedlicher Umfangsgeschwindigkeit umlaufende Getriebeteile auf, von denen nur ein Getriebeteil beim Aufsetzen der jeweiligen Kassette mit der kassettenseitig angeorndeten Transportrolle kuppelbar ist. Das Kuppeln des einen mit der Kassette fest verbundenen Zahnrades mit dem anderen maschinenseitig angeordneten Zahnrad ist nicht immer störungsfrei, da die zu kuppelnden Teile nicht immer stellungsgenau zueinander stehen.Furthermore, DE-A-28 10 768 discloses a drive device for an ink ribbon arranged in a cassette, the ink ribbon being fed by driving a drive roller. This drive roller is connected to a device arranged on the machine side for generating a step feed of the ink ribbon which differs depending on the ink ribbon type. On the output side, this device has two gear parts rotating at different peripheral speeds, of which only one gear part can be coupled to the transport roller arranged on the cassette side when the respective cassette is placed on it. The coupling of the gearwheel firmly connected to the cassette with the other gearwheel arranged on the machine side is not always trouble-free, since the parts to be coupled are not always exactly in position with one another.

Die durch die DE-A-2553329 bekannte abnehmbare Kassette für ein Kohleband von Schreib-und anderen Büromaschinen weist zwar einen mit der äußersten Windung der Aufwickelspule zusammenwirkendes Zahnrad auf, das durch ein maschinenseitig angeordnetes Antriebselement antreibbar ist. Diese bekannte Anordnung ermöglicht aber nur einen konstanten Farbbandtransportschritt und sieht keine Möglichkeit zum unterschiedlichen Antreiben des Farbbandes je nach Farbbandart vor. Auch ermoglicht diese bekannte Anordnung keine optimale Ausnutzung des Lagerraumes für die Vorrats- und die Aufwickelspule, da die Zahnwalze und der Schwenkhebel für die Aufwickelspule in dem Laggerraum mit angeordnet sind.The removable cassette for a carbon band of typewriters and other office machines known from DE-A-2553329 does indeed have a gearwheel which interacts with the outermost turn of the take-up reel and can be driven by a drive element arranged on the machine side. However, this known arrangement only allows a constant ribbon transport step and does not provide any possibility of driving the ribbon differently depending on the type of ribbon. This known arrangement also does not allow optimal use of the storage space for the supply and take-up spools, since the toothed roller and the pivoting lever for the take-up spool are also arranged in the storage space.

Der Erfindung liegt die Aufgabe zugrunde, eine Farbbandkassette zu schaffen durch die beim Einsetzen in die Aufnahmevorrichtung der Maschine eine Umschaltung des Transportschrittes je nach Farbbandart automatisch einleitbar ist. Die dazu notwendige Umschalteinrichtung soll außerdem aus einfachen und billigen zu montierenden und zu fertigenden Teilen bestehen. Diese Aufgabe wird durch die im Anspruch 1 gekennzeichnete Erfindung gelöst.The invention has for its object to provide an ink ribbon cassette by means of which a switching of the transport step depending on the type of ribbon can be initiated automatically when inserted into the receiving device of the machine. The switching device required for this should also consist of simple and inexpensive parts to be assembled and manufactured. This object is achieved by the invention characterized in claim 1.

Durch die in dem Gehäuse der Farbbandkassette angeordnete Antriebsrolle ist beim Einsetzen einer neuen Farbbandkassette auch der Transportschritt automatisch festgelegt, ohne daß eine besondere manuelle Betätigung der Schrittweitenumschalteinrichtung erforderlich ist. Auch ist eine Anfertigung eines gemeinsamen Kassettengehäuses für Farbbandkassetten mit unterschiedlichen Farbbandarten möglich. Hierdurch werden die Fertigungs- und Lagerkosten wesentlich reduziert.Due to the drive roller arranged in the housing of the ribbon cassette, the transport step is also automatically determined when a new ribbon cassette is inserted, without any special manual actuation of the increment switching device being necessary. It is also possible to produce a common cassette housing for ribbon cassettes with different types of ribbon. This significantly reduces manufacturing and storage costs.

Weitere vorteilhafte Ausgestaltungen des Erfindungsgegenstandes sind den weiteren Unteransprüchen zu entnehmen.Further advantageous refinements of the subject matter of the invention can be found in the further subclaims.

Nachstehend werden Ausführungsbeispiele der Erfindung anhand der Zeichnungen beschrieben.Exemplary embodiments of the invention are described below with reference to the drawings.

Es zeigt :

  • Figur 1 eine Draufsicht auf die erfindungsgemäße Farbbandkassette für ein Einfach-Karbonband,
  • Figur 2 und Figur 3 zeigen Einzelheiten aus Figur 1,
  • Figur 4 eine Draufsicht auf die erfindungsgemäße Farbbandkassette für ein Mehrfach-Karbonband,
  • Figuren 5 und 6 zeigen Einzelheiten aus Figur 4 und
  • Figur 7 die Antriebseinrichtung für die Antriebsrolle mit der Schrittweitenumschalteinrichtung.
It shows :
  • FIG. 1 shows a top view of the ribbon cassette according to the invention for a single carbon ribbon,
  • FIG. 2 and FIG. 3 show details from FIG. 1,
  • FIG. 4 shows a plan view of the ribbon cassette according to the invention for a multiple carbon ribbon,
  • Figures 5 and 6 show details of Figures 4 and
  • Figure 7 shows the drive device for the drive roller with the step size switching device.

In Figur 1 ist eine Farbbandkassette 1 auf einer Aufnahmevorrichtung 3 einer Schreib- oder ähnlichen Büromaschine betriebsbereit angeordnet, welche längs eines Aufzeichnungsträgers 5 verschiebbar angeorndet ist. Der Aufzeichnungsträger 5 ist über eine Papierwalze 7 in bekannter Weise transportierbar angeordnet. Das aus einem Austrittsschlitz 9 der Farbbandkassette 1 austretende Farb- oder Karbonband 11 wird von einer Vorratsspule 13 abgewickelt und über einen Spannhebel 15 und über Farbbandführungsgabeln 17, 19 zwischen dem Aufzeichnungsträger 5 und einem Typenträger 21 hindurchgeführt. Der Typenträger 21 ist z. B. eine Typenscheibe mit einer Vielzahl von radialen Schlitzen, wodurch elastische Stege gebildet werden, an deren Enden jeweils eine Type angeordnet ist. Die Einstellung der Typenscheibe 21 erfolgt über einen nicht dargestellten Motor, welcher ebenfalls auf der Aufnahmevorrichtung 3 angeordnet ist. Der Abdruck eines Schriftzeichens erfolgt über einen auf der Aufnahmevorrichtung 3 verschiebbar gelagerten Hammer, welcher z. B. über einen Elektromagneten angetrieben wird. Nach dem Abdruck wird das Farbband 11 mittels einer antreibbaren Antriebsrolle 23 und einer gegen diese preßbaren Andruckrolle 25 durch einen Eintrittschlitz 27 wieder in die Kassette 1 gezogen und einer Aufwickelspule 29 zugeführt.In Figure 1, an ink ribbon cassette 1 is arranged ready for operation on a recording device 3 of a typewriter or similar office machine, which ver along a recording medium 5 is slidably arranged. The record carrier 5 is arranged so that it can be transported in a known manner via a paper roller 7. The ribbon or carbon ribbon 11 emerging from an exit slot 9 of the ribbon cassette 1 is unwound from a supply spool 13 and passed between the recording medium 5 and a type carrier 21 via a tensioning lever 15 and ribbon guide forks 17, 19. The type carrier 21 is, for. B. a type plate with a plurality of radial slots, whereby elastic webs are formed, at the ends of which a type is arranged. The setting of the type plate 21 takes place via a motor, not shown, which is also arranged on the receiving device 3. The printing of a character takes place via a displaceably mounted hammer on the receiving device 3, which z. B. is driven by an electromagnet. After printing, the ink ribbon 11 is pulled back into the cassette 1 by means of a drivable drive roller 23 and a pressure roller 25 which can be pressed against it, through an entry slot 27 and fed to a take-up reel 29.

Die Antriebsrolle 23 ist einerseits in der Bodenplatte 31 und andererseits in dem Deckel 33 der Kassette drehbar gelagert. Die Antriebsrolle 23 weist an ihrem dem Deckel 33 zugewandten Ende einen umlaufenden Flansch 35 auf, welcher ein Berühren des Farbbandes mit dem Deckel 33 verhindert. Weiterhin ist nahe der Farbband-Eintrittsstelle 27 eine als Umlenkführung ausgebildete Umlenkrolle 37 drehbar in dem Kassettengehäuse gelagert, durch die eine größere Umschlingung des Farbbandes 11 um die Antriebsrolle 23 ermöglicht wird. Diese Umlenkrolle 37 weist ebenfalls einen vorstehenden Flansch 39 auf, der eine exakte Führung des Farbbandes 11 gewährleistet. Um eine exakte Führung des Farbbandes zu der Aufwickelspule 29 zu gewährleisten, weist die Bodenplatte 31 zu der Antriebsrolle 23 und zu den Umlenkführungen 37 im Bereich der Farbband-Eintrittsstelle 27 hin geneigte Führungsflächen 40 auf. Hierdurch wird eine exakte Führung des Farbbandes 11 gewährleistet. Das Farbband 11 wird mittels einer nicht dargestellten Hubvorrichtung zur Erzeugung eines Abdrucks in die Drucklage angehoben und nach dem Abdruck in eine die Druckzeile freigebende Sichtstellung abgesenkt. Hierbei wird das Farbband 11 in dem Farbband-Eintrittsschlitz 27 um eine hinter diesem in dem Kassettengehäuse quer angeordnete Führungsrippe 42 geschwenkt, wodurch eine weitgehende Verschmutzung der Kassette 1 und der Maschine vermieden wird. Das durch die Antriebsrolle 23 und die Andruckrolle 25 getriebene Farbband 11 wird dann über eine weitere Umlenkführung 38, die auf der Eintrittsstelle 27 gegenüberliegenden Seite und nahe des Flansches 2 der Aufwickelspule 29 in dem Kassettengehäuse gelagert ist, zu der Aufwickelspule 29 geleitet. Diese mit der Bodenplatte 31 des kassetengehäuses fest verbundene Umlenkführung 38 gewährleistet ein strammes Aufwickeln des Farbbandes auf die Aufwickelspule 29. Das freie Ende dieser Umlenkführung 38 wird in dem Deckel 33 durch Führungsrippen 32 und 34 abgestützt. Die Rippe 34 und der Flansch 2 der Aufwickelspule 29 verhindern, daß das Farbband 11 bei der Umlenkung um die Umlenkführung 38 in der Höhe wandern und mit dem Deckel 33 in Berührung kommen kann. Die Oberseite der einzelnen Windungen bildet daher nach dem Aufwickelvorgang eine glatte Fläche.The drive roller 23 is rotatably mounted on the one hand in the base plate 31 and on the other hand in the cover 33 of the cassette. At its end facing the cover 33, the drive roller 23 has a circumferential flange 35 which prevents the ink ribbon from touching the cover 33. Furthermore, near the ink ribbon entry point 27, a deflection roller 37 designed as a deflection guide is rotatably mounted in the cassette housing, by means of which a larger wrap of the ink ribbon 11 around the drive roller 23 is made possible. This deflection roller 37 also has a projecting flange 39, which ensures exact guidance of the ink ribbon 11. In order to ensure exact guidance of the ink ribbon to the take-up spool 29, the base plate 31 has guide surfaces 40 inclined towards the drive roller 23 and the deflection guides 37 in the region of the ink ribbon entry point 27. This ensures exact guidance of the ink ribbon 11. The ink ribbon 11 is raised into the printing position by means of a lifting device (not shown) in order to produce an impression and, after the impression, is lowered into a visual position which releases the printing line. In this case, the ink ribbon 11 is pivoted in the ink ribbon inlet slot 27 about a guide rib 42 arranged transversely behind it in the cartridge housing, thereby avoiding extensive contamination of the cartridge 1 and the machine. The ink ribbon 11, which is driven by the drive roller 23 and the pressure roller 25, is then passed to the take-up spool 29 via a further deflection guide 38, which is mounted in the cassette housing on the side opposite the entry point 27 and near the flange 2 of the take-up spool 29. This deflection guide 38, which is firmly connected to the base plate 31 of the cassette housing, ensures tight winding of the ink ribbon onto the take-up spool 29. The free end of this deflection guide 38 is supported in the cover 33 by guide ribs 32 and 34. The rib 34 and the flange 2 of the take-up spool 29 prevent the ink ribbon 11 from moving in height during the deflection around the deflection guide 38 and from coming into contact with the cover 33. The top of the individual turns therefore forms a smooth surface after the winding process.

Die Andruckrolle 25 ist auf einem auf der Aufnahmevorrichtung 3 um eine Achse 28 schwenkbar gelagerten Schwenkhebel 26 drehbar gelagert. Dieser Schwenkhebel 26 ist zweiarmig ausgebildet, wobei auf dem einen Arm 24 die Andruckrolle 25 drehbar gelagert ist und der andere Arm 22 eine Steuerkurve mit einer Rastausnehmung 18 für einen Rastbolzen 16 aufweist. Dieser Rastbolzen 16 ist an einem um eine Achse 14 schwenkbar gelagerten Verriegelungshebel 12 mit einem Handgriff 10 fest angeordnet. Der Schwenkhebel 26 ist durch eine angelenkte Feder 8 im Gegenuhrzeigersinn um die Achse 28 rückstellbar.The pressure roller 25 is rotatably mounted on a pivot lever 26 which is pivotally mounted on the receiving device 3 about an axis 28. This pivot lever 26 is designed with two arms, the pressure roller 25 being rotatably mounted on one arm 24 and the other arm 22 having a control cam with a latching recess 18 for a latching bolt 16. This locking pin 16 is fixedly arranged on a locking lever 12 pivotally mounted about an axis 14 with a handle 10. The pivot lever 26 can be reset by an articulated spring 8 in the counterclockwise direction about the axis 28.

Die Antriebsrolle 23 und die Andruckrolle 25 weisen glatte Oberflächen auf und bestehen aus Polyurethanelastomeren. Die Oberfläche der Antriebsrolle 23 besteht aus einem Polyelastomer z. B. « Hytrel »" mit einer Shore-Härte A 75-95, der einen exakten Transport des Farbbandes 11 in weiteren Temperaturbereichen gewährleistet, ohne daß ein Verkleben des Farbbandes 11 mit der Antriebsrolle 23 auftritt.The drive roller 23 and the pressure roller 25 have smooth surfaces and consist of polyurethane elastomers. The surface of the drive roller 23 consists of a polyelastomer z. B. "Hytrel" "with a Shore hardness A 75-95, which ensures an exact transport of the ink ribbon 11 in other temperature ranges without the ink ribbon 11 sticking to the drive roller 23.

Die Antriebsrolle 23 weist einen von unten zugänglichen axialen Schlitz 6 zum Eingriff des axial verschiebbaren, messerartigen Antriebselementes 4 auf. Dieses Antriebselement 4 ist mit einem Antriebszahnrad 41 eines Klinkengetriebes formschlüssig verbunden und auf der Aufnahmevorrichtung 3 drehbar gelagert. Dieses Antriebszahnrad 41 ist über eine Antriebsklinke 43 im Uhrzeigersinn 45 antreibbar angeordnet. Diese Antriebsklinke 43 ist mit einem Schwenkhebel 47 aus einem Kunststoffteil einstückig ausgebildet und um die Achse 49 des Antriebszahnrades 41 auf der Aufnahmevorrichtung 3 schwenkbar gelagert. Der Schwenkhebel 47 ist gemäß Figur 7 mit einem um eine Achse 51 schwenkbaren Antriebshebel 53 formschlüssig kuppelbar, auf welchem ein Antriebsnocken 55 drehbar gelagert ist. Dieser Antriebsnocken 55 wird durch eine exzentrisch angelenkte Feder 57 im Gegenuhrzeigersinn beaufschlagt und durch Zusammenwirken seines Anschlages 59 mit einer Auslösenase 61 eine Auslöseklinke 63 außer Eingriff mit einem durch einen Antriebsmotor 64 antreibbaren Zahnrad 65 gehalten, siehe Figur 7. Die Auslöseklinke 63 ist über eine Zugstange 67 mit einem Schwenkhebel 68 verbunden, welcher einen Anker 69 für einen Elektromagneten 71 aufweist. Wird der Elektromagnet 71 erregt, dann wird der Schwenkhebel 68 gegen die Kraft der Rückstellfeder 73 angezogen, wobei die Auslöseklinke 63 um eine Achse 75 im Uhrzeigersinn verschwenkt wird. Hierdurch wird die Auslösenase 61 aus dem Wirkbereich des Anschlages 59 des Antriebsnockens 55 gebracht, wobei dieser durch die Feder 57 in Eingriff mit dem umlaufenden Zahnrad 65 gebracht wird. Durch die exzentrisch ausgebildeten Antriebsnocken 55 wird der Antriebshebel 53 im Uhrzeigersinn um die Achse 51 verschwenkt, wodurch der Schwenkhebel 47 über die Antriebsklinke 43 das Antriebszahnrad 41 im Uhrzeigersinn mitgenommen werden. Durch Antrieb des Zahnrades 41 werden die Antriebsrolle 23 und eine Riemenscheibe 77 ebenfalls im Uhrzeigersinn gedreht. Die Riemenscheibe 77 ist über eine Schraubenfeder 79 reibungsschlüssig mit einer mit der Aufwickelspule 29 fest verbundenen Riemenscheibe 81 verbunden. Mit dem Antrieb der Antriebsrolle 23 und der Andruckrolle 25 wird das Farb- oder Karbonband 11 von der Vorratsspule 13 abgezogen und mittels der über die Schraubenfeder 79 angetriebenen Aufwickelspule 29 auf diese wieder aufgewickelt. Beim Entregen des Elektromagneten 71 wird die Auslöseklinke 63 wieder in die Ausgangslage gemäß Figur 7 zurückgestellt, wobei der Antriebsnocken 55 wieder Außereingriff mit dem umlaufenden Zahnrad 65 gebracht wird. Der Antriebshebel 53 und der Schwenkhebel 47 werden ebenfalls in die Ausgangslage zurückgestellt, wobei ein Zurückdrehen des Antriebszahnrades 41 im Gegenuhrzeigersinn durch eine Sperrklinke 83 verhindert wird.The drive roller 23 has an axial slot 6 accessible from below for engagement of the axially displaceable, knife-like drive element 4. This drive element 4 is positively connected to a drive gear 41 of a ratchet mechanism and is rotatably mounted on the receiving device 3. This drive gear 41 is arranged to be driven in a clockwise direction 45 via a drive pawl 43. This drive pawl 43 is formed in one piece with a swivel lever 47 from a plastic part and is pivotably mounted on the receiving device 3 about the axis 49 of the drive gear 41. According to FIG. 7, the pivot lever 47 can be positively coupled to a drive lever 53 pivotable about an axis 51, on which a drive cam 55 is rotatably mounted. This drive cam 55 is acted upon by an eccentrically articulated spring 57 in the counterclockwise direction and, by the interaction of its stop 59 with a release lug 61, a release pawl 63 is kept out of engagement with a gear 65 which can be driven by a drive motor 64, see FIG. 7. The release pawl 63 is via a pull rod 67 connected to a pivot lever 68 which has an armature 69 for an electromagnet 71. If the electromagnet 71 is energized, the pivot lever 68 is pulled against the force of the return spring 73, the release pawl 63 being pivoted clockwise about an axis 75. This will release the trigger se 61 brought from the effective range of the stop 59 of the drive cam 55, which is brought into engagement with the rotating gear 65 by the spring 57. Due to the eccentrically designed drive cams 55, the drive lever 53 is pivoted in a clockwise direction about the axis 51, as a result of which the pivot lever 47 is carried along the drive gear 41 in a clockwise direction via the drive pawl 43. By driving the gear 41, the drive roller 23 and a pulley 77 are also rotated clockwise. The pulley 77 is frictionally connected to a pulley 81 fixedly connected to the take-up reel 29 via a helical spring 79. With the drive of the drive roller 23 and the pressure roller 25, the ink or carbon ribbon 11 is drawn off from the supply reel 13 and rewound onto it by means of the winding reel 29 driven by the coil spring 79. When the electromagnet 71 is de-energized, the release pawl 63 is returned to the starting position according to FIG. 7, the drive cam 55 being brought out of engagement again with the rotating gear 65. The drive lever 53 and the swivel lever 47 are also returned to the starting position, with the drive gear 41 being prevented from rotating counterclockwise by a pawl 83.

Um die Farb- und Karbonbänder optimal zu nutzen, sind unterschiedliche Transportschritte in Längsrichtung durch die Druckstation erforderlich. Dieses wird erfindungsgemäß auf einfachste Weise dadurch gelöst, daß die Lage des Führungsstiftes 85 an dem Antriebshebel 53 zur Änderung des Drehwinkels des Schwenkhebels 47 veränderbar ist. Zu diesem Zweck ist der Führungsstift 85 in einem radialen Schlitz 87 in dem Schwenkhebel verschieb- und in verschiedenen Rastpunkten 89, 91 an dem Antriebshebel 53 verrastbar. Der Führungsstift 85 ist an einem Kipphebel 95 fest angeordnet welcher auf dem Antriebshebel 53 verschieb- und verschwenkbar gelagert ist. Der Kipphebel 95 ist einerseits mit dem Führungsstift 85 in einem Schlitz 97 mit den Lagerpunkten 89, 91 verschieb- und verrastbar und andererseits mit einem Gelenkstein 98 in einem zweiten Schlitz 99 verschiebbar gelagert. Der zweite Schlitz 99 ist zu dem ersten Schlitz 97 senkrecht angeordnet. Die Arretierung des Einstellhebels in den beiden Endlagen 89 und 93 erfolgt durch einen zwischen dem Kipphebel 95 und dem Antriebshebel 53 ausgespannte Feder 101. Das Verschwenken des Kipphebels aus der Rastlage 91 in die Rastlage 89 erfolgt über einen Zwischenhebel 102 gemäß Figur 1, der um eine Achse 103 in der Aufnahmevorrichtung 3 schwenkbar angeordnet ist. Der Zwischenhebel 102 umfaßt mit einer Ausnehmung 104 an einem ersten Arm 105 den Führungsstift 85 und weist an einem zweiten Arm 107 einen anschlagstift 106 auf, der mit einer Ausnehmung 108 an dem Schwenkhebel 26 für die Andruckrolle 25 in Wirkverbindung steht.In order to optimally use the ink and carbon ribbons, different transport steps in the longitudinal direction through the printing station are required. This is solved in the simplest way according to the invention in that the position of the guide pin 85 on the drive lever 53 can be changed to change the angle of rotation of the pivoting lever 47. For this purpose, the guide pin 85 is displaceable in a radial slot 87 in the pivoting lever and can be locked in different locking points 89, 91 on the drive lever 53. The guide pin 85 is fixed to a rocker arm 95 which is slidably and pivotably mounted on the drive lever 53. The rocker arm 95 can be displaced and locked on the one hand with the guide pin 85 in a slot 97 with the bearing points 89, 91 and on the other hand can be moved in a second slot 99 with an articulated block 98. The second slot 99 is arranged perpendicular to the first slot 97. The adjustment lever is locked in the two end positions 89 and 93 by a spring 101 stretched between the rocker arm 95 and the drive lever 53. The pivoting of the rocker arm from the latching position 91 into the latching position 89 takes place via an intermediate lever 102 according to FIG Axis 103 is pivotally arranged in the receiving device 3. The intermediate lever 102 has a recess 104 on a first arm 105, the guide pin 85 and has a stop arm 106 on a second arm 107, which is operatively connected to a recess 108 on the pivot lever 26 for the pressure roller 25.

Zum Herausnehmen einer Farbbandkassette 1 von der Aufnahmevorrichtung 3 wird der Schwenkhebel 12 über den Handgriff 10 im Gegenuhrzeigersinn um die Achse 14 geschwenkt. Hierbei wird durch Anschlagen des Anschlagstiftes 16 gegen die Steuerkurve 20 der Schwenkhebel 26 im Uhrzeigersinn um die Achse 28 soweit verschwenkt, bis der Anschlagstift 16 die Rastausnehmung 18 erreicht hat. Die Verrastung erfolgt gegen die Rückstellfeder 8, die an dem Schwenkhebel 26 angelenkt ist und im Gegenuhrzeigersinn wirkt. Da die Andruckrolle 25 in der Raststellung des Schwenkhebels 26 aus dem Kassettengehäuse herausgeschwenkt ist, kann die Kassette 1 von der Aufnahmevorrichtung 3 entfernt werden. Das Einsetzen einer neuen Kassette erfolgt in der umgekehrten Weise, wobei nach dem Einsetzen einer Kassette mit einem Einfach-Karbonband gemäß Figur 1 die Schwenkhebel 12 und 26 freigegeben werden. Der Schwenkhebel 26 wird hierbei durch die Rückholfeder 8 soweit im Gegenuhrzeigersinn geschwenkt, bis die Andruckrolle 25 mit der Antriebsrolle 23 zur Anlage gelangt. Hierbei gelangt der Schwenkhebel aus der Stellung I in die Stellung II gemäß Figur 1, wobei der Anschlagstift 106 an dem Zwischenhebel 102 noch nicht beaufschlagt worden ist, wodurch der Kipphebel 95 in der in der Figur 7 dargestellten Rastlage 91 verbleibt. In dieser Stellung wird der Schwenkhebel 47 soweit verschwenkt, daß das Zahnrad 41 über die Antriebsklinke 43 soweit mitgenommen wird, daß die für Einfach-Karbonbänder erforderliche große Schrittweite erzielt wird. Hierbei darf jeder Flächenteil des Karbonbandes nur einmal zum Abdruck verwendet werden.To remove an ink ribbon cassette 1 from the receiving device 3, the pivot lever 12 is pivoted about the axis 14 in a counterclockwise direction via the handle 10. Here, by striking the stop pin 16 against the control cam 20, the pivot lever 26 is pivoted clockwise about the axis 28 until the stop pin 16 has reached the latching recess 18. The locking takes place against the return spring 8, which is articulated on the pivot lever 26 and acts counterclockwise. Since the pressure roller 25 is pivoted out of the cassette housing in the latching position of the pivoting lever 26, the cassette 1 can be removed from the receiving device 3. The insertion of a new cassette takes place in the reverse manner, the pivot levers 12 and 26 being released after the insertion of a cassette with a single carbon band according to FIG. The pivot lever 26 is pivoted by the return spring 8 so far in the counterclockwise direction until the pressure roller 25 comes into contact with the drive roller 23. Here, the swivel lever moves from position I to position II according to FIG. 1, the stop pin 106 on the intermediate lever 102 not yet being acted on, as a result of which the rocker arm 95 remains in the latching position 91 shown in FIG. 7. In this position, the pivot lever 47 is pivoted to such an extent that the gear 41 is carried along via the drive pawl 43 to such an extent that the large step size required for single carbon bands is achieved. Each part of the carbon band may only be used once for printing.

Beim Einsatz eines Multi-Karbonbandes gemäß den Figuren 4 bis 6 ist in dem Kassettengehäuse eine Antriebsrolle 110 eingesetzt, der einen kleineren Durchmesser als der der Antriebsrolle 23 für Einfach-Karbonbänder aufweist. In diesem Fall ist der Schwenkhebel 26 von der Stellung I in die Stellung 111 schwenkbar, wobei der Zwischenhebel 102 durch Anschlagen der Ausnehmung 108 gegen den Anschlagstift 106 im Gegenuhrzeigersinn um die Achse 103 geschwenkt wird. Hierdurch wird der Kipphebel 95 aus der Raststellung 91 in die Raststellung 89 geschwenkt. Da der Führungsstift 85 nun an einem längeren Hebelarm des Schwenkhebels 47 wirksam ist, wird dieser um einen entsprechend geringeren Winkelweg verschwenkt. Das Antriebszahnrad 41 und die mit diesem fest verbundene Antriebsrolle 110 werden um einen entsprechend geringeren Winkelweg derart angetrieben, daß die nacheinander angeschlagenen Typen überlappend mit dem Farbband in Berührung gebracht werden. Durch den geringeren Schrittvorschub wird eine wirtschaftliche Ausnutzung des Mehrfach-Karbonbandes gewährleistet.When using a multi-carbon tape according to Figures 4 to 6, a drive roller 110 is used in the cassette housing, which has a smaller diameter than that of the drive roller 23 for single carbon tapes. In this case, the pivot lever 26 can be pivoted from position I to position 111, the intermediate lever 102 being pivoted counterclockwise about the axis 103 by striking the recess 108 against the stop pin 106. As a result, the rocker arm 95 is pivoted from the locking position 91 into the locking position 89. Since the guide pin 85 is now effective on a longer lever arm of the pivot lever 47, the latter is pivoted by a correspondingly smaller angular path. The drive gear 41 and the drive roller 110 firmly connected to it are driven by a correspondingly smaller angular path in such a way that the types struck one after the other are brought into overlapping contact with the ink ribbon. The lower step feed rate ensures that the multiple carbon belt is used economically.

Die Schrittweitenumschaltung des Klinkengetriebes erfolgt automatisch mit der Freigabe des Schwenkhebels 26 mit der Andruckrolle 25. Die glatten Oberflächen der Antriebsrolle 23 und der Andruckrolle 25 verhindern eine Verschmutzung der Maschine.The step size changeover of the ratchet mechanism takes place automatically with the release of the pivot lever 26 with the pressure roller 25. The smooth surfaces of the drive roller 23 and the pressure roller 25 prevent contamination of the machine.

Claims (10)

1. A cassette which can be placed on a typewriter or similar office machine, having a ribbon (2) which can be wound from a delivery spool (4) over guides through a printing station (7) of the machine back onto a winding spool (3), the feed of the ribbon (2) being effected by a drive roller (23) which acts on the ribbon (2) and can be coupled to a feed mechanism in the receiving device of the machine and a pressure roller (25) co-operating therewith and different transmission ratios being able to be produced in the drive train to preset spacing steps of various length, characterised in that, in order to vary the spacing steps, on the one hand drive rollers (23, 110) of different diameters can be used and on the other hand the size of the spacing steps of the feed mechanism (4, 41, 43, 47, 53, 55, 65, 85) can be changed over via the pressure roller (25) of the machine acting- on the drive roller (23, 110) from outside the cassette (1) and sensing its diameter.
2. A cassette according to claim 1, characterised in that the ribbon (11) entering the cassette through an entry point (27) can be conveyed, via a deflecting guide (37) disposed close to the entry point (27), to the drive roller (23) and then can be wound on the winding spool (29) via a further deflecting guide (38), the further deflecting guide (38) being mounted at the side opposite the entry point (27) and close to the flange (26) of the winding spool (29) in the cassette casing.
3. A cassette according to claim 2, characterised in that the cover (33) of the cassette casing has guide ribs (32, 34, 42) in the region of the entry point (27) and the deflecting guides (37, 38) and that the drive roller (23) comprises a guide flange at least towards the cover (33).
4. A cassette according to claim 3, characterised in that the bottom plate (31) comprises guide surfaces (40) inclined towards the drive roller (23) and towards the deflecting guides (37) in the region of the ribbon entry point (27).
5. A cassette according to claim 1, 2, 3 or 4, characterised in that the drive roller (23) cooperating with the uncoated side of the ribbon (11) consists of a polyelastomer with a Shore hardness A 75-95.
6. A receiving device for the cassette according to any one of the preceding claims, wherein the drive rollers (23, 110) have an engagement accessible from below for the drive element of the feed mechanism, characterised in that the drive element (4) is of knife-like construction and is positively connected to a gear-wheel (41) which can be driven by a ratchet gear in operational communication with the device for changing over the length of step, and that the pawl (43) of the ratchet gear is pivotally mounted on a rocking lever (47) which is mounted coaxially with the gear-wheel (41) and which comprises a radial slot (87) with detent recesses (89, 91) for a guide pin (85) of a rocker arm (95) mounted for pivoting on a drive member (53) executing a constant stroke, and that the rocker arm (95) is pivotable by the rocking lever (26) together with the pressure roller (25) to vary the effective lever arm.
7. A device according to claim 6, characterised in that the rocker arm (95) can be arrested in two end positions (89, 91) by an elastic spring (101) and can be brought over the dead centre position by the rocking lever (26) by means of an intermediate lever (102).
8. A device according to claim 7, characterised in that the intermediate lever (102) embraces the guide pin (85) with a recess (104) on a first arm (105) and, on a second arm (109), comprises a stop pin (106) which is in operational communication with a recess (108) on the rocking lever (26) for the pressure roller (25).
9. A device according to claim 6, 7 or 8, characterised in that the pressure roller (25) is mounted for rotation on a rocking lever (26) which is mounted for pivoting (28) on the receiving device (3) and that the rocking lever (26) is of two-armed construction, the one arm (24) comprising the device for changing over the length of step and the other arm (22) comprising a cam (20) with a detent recess (18) for a detent pin (16) on a pivotally mounted locking lever (12) for the cassette (1).
10. A device according to claim 9, characterised in that the drive rollers (23, 110) and the pressure roller (25) have smooth surfaces.
EP81100710A 1980-02-02 1981-01-31 Ink ribbon cartridge for a typewriter or the like Expired EP0033532B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100710T ATE9560T1 (en) 1980-02-02 1981-01-31 RIBBON CASSETTE FOR A WRITER OR SIMILAR OFFICE MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803003886 DE3003886A1 (en) 1980-02-02 1980-02-02 RIBBON CASSETTE FOR A WRITING O.AE. OFFICE MACHINE
DE3003886 1980-02-02

Publications (3)

Publication Number Publication Date
EP0033532A2 EP0033532A2 (en) 1981-08-12
EP0033532A3 EP0033532A3 (en) 1982-10-27
EP0033532B1 true EP0033532B1 (en) 1984-09-26

Family

ID=6093624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100710A Expired EP0033532B1 (en) 1980-02-02 1981-01-31 Ink ribbon cartridge for a typewriter or the like

Country Status (4)

Country Link
US (1) US4440514A (en)
EP (1) EP0033532B1 (en)
AT (1) ATE9560T1 (en)
DE (2) DE3003886A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3003886A1 (en) * 1980-02-02 1981-08-13 Olympia Werke Ag, 2940 Wilhelmshaven RIBBON CASSETTE FOR A WRITING O.AE. OFFICE MACHINE
DE3015726C2 (en) * 1980-04-24 1985-07-11 Olympia Werke Ag, 2940 Wilhelmshaven Ribbon cassette with a continuous fabric tape for a typewriter or similar office machine
DE3165271D1 (en) * 1980-12-13 1984-09-06 Olympia Werke Ag Ink ribbon cartridge for a typewriter or similar office machine
DE3301933C2 (en) * 1983-01-21 1985-03-07 Triumph-Adler Aktiengesellschaft für Büro- und Informationstechnik, 8500 Nürnberg Device for lifting and transporting ribbon in writing machines and similar machines
GB2141073B (en) * 1983-06-10 1987-08-12 Ricoh Kk Ink ribbon feeding mechanism
DE3346607A1 (en) * 1983-12-23 1985-07-04 Olympia Werke Ag, 2940 Wilhelmshaven Continuous ink ribbon cartridge for a typewriter or similar office machine
JPH0661994B2 (en) * 1984-05-29 1994-08-17 東京電気株式会社 Thermal printer
US4758108A (en) * 1985-09-26 1988-07-19 Brother Kogyo Kabushiki Kaisha Printing apparatus with carriage drive utilized to feed print and erase ribbons and/or to feed the print ribbon and shift the erase ribbon
DE3601484C1 (en) * 1986-01-20 1987-04-23 Triumph Adler Ag Ink and correction tape device for typewriters
DE3742860A1 (en) * 1987-02-18 1988-09-01 Olympia Aeg RIBBON CASSETTE WITH RECHARGEABLE RIBBON REELS
JPH0212857U (en) * 1988-07-11 1990-01-26
US5372439A (en) * 1992-12-18 1994-12-13 Zebra Technologies Corporation Thermal transfer printer with controlled ribbon feed
JP3066555B2 (en) * 1993-01-29 2000-07-17 ブラザー工業株式会社 Tape winding mechanism
AU7202096A (en) * 1995-10-24 1997-05-15 Mannesmann Tally Corporation System for controlled inking of printer ribbons
NZ511792A (en) * 1998-11-20 2003-08-29 Skyepharma Canada Inc Dispersible phospholipid stabilized microparticles
USD453179S1 (en) 2000-07-27 2002-01-29 Iimak Printer cassette
USD458295S1 (en) 2000-07-27 2002-06-04 Iimak Printer cassette
ATE357216T1 (en) * 2001-02-22 2007-04-15 Jagotec Ag FIBRATE-STATIN COMBINATIONS WITH REDUCED FOOD-DEPENDENT EFFECTS
US6910819B2 (en) * 2003-08-12 2005-06-28 Brady Worldwide, Inc. Printer cartridge
US7213807B2 (en) * 2003-11-07 2007-05-08 Paxar Americase, Inc. Stacker and method of batch separation with sheets
US7234884B1 (en) * 2005-11-18 2007-06-26 Unisys Corporation Ribbon spool lock assembly

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7731025U1 (en) * 1900-01-01 Veb Kombinat Zentronik, Ddr 5230 Soemmerda
US3346090A (en) * 1963-05-31 1967-10-10 Ibm Ribbon feed mechanism
US3349887A (en) * 1964-12-28 1967-10-31 Ibm Ribbon mechanism
FR1549848A (en) * 1967-01-13 1968-12-13
US3604549A (en) * 1968-07-16 1971-09-14 Ibm Dual feed rate ribbon mechanism and supply cartridge therefor
US3643779A (en) * 1970-12-14 1972-02-22 Scm Corp Ribbon mechanism for cartridge supported ribbons
IT942662B (en) * 1971-10-04 1973-04-02 Olivetti & Co Spa CARTRIDGE FOR CARBON TAPE OF A WRITING MACHINE, ACCOUNTING CALCULATOR OR SIMILAR OFFICE MACHINES
JPS534443B2 (en) * 1972-04-20 1978-02-17
DE2337191C3 (en) * 1973-07-21 1978-11-09 Triumph Werke Nuernberg Ag, 8500 Nuernberg Transport device for carbon or plastic ribbons for power-driven typewriters and similar machines
DE2559595A1 (en) * 1974-03-07 1977-07-14 Qume Corp TRANSPORT DEVICE FOR A RIBBON IN A RIBBON CASSETTE
IT1011772B (en) * 1974-04-24 1977-02-10 Olivetti & Co Spa WRITING TAPE DISPLACEMENT DEVICE FOR AN OFFICE MACHINE PRINTING GROUP
US3899065A (en) * 1974-07-22 1975-08-12 Litton Business Systems Inc Ribbon cassettes for single element typewriters
IT1024899B (en) * 1974-11-25 1978-07-20 Olivetti Ing C S P A REMOVABLE CARTRIDGE FOR A CAREON TAPE OF TELESCRIPTING ACCOUNTING MACHINES AND SIMILAR OFFICE MACHINES
DE2642069C2 (en) * 1976-09-18 1982-03-11 Olympia Werke Ag, 2940 Wilhelmshaven Device for the longitudinal transport of single-use ink or erasing tapes in power-driven typewriters or similar office machines
DE2810768C3 (en) * 1978-03-13 1981-03-19 Olympia Werke Ag, 2940 Wilhelmshaven Drive device for the ribbon of writing, data or similar machines
DE2904489C2 (en) * 1979-02-07 1982-11-25 Olympia Werke Ag, 2940 Wilhelmshaven Erasing device for power-driven typewriters or similar office machines
DE2904488C2 (en) * 1979-02-07 1983-02-17 Olympia Werke Ag, 2940 Wilhelmshaven Device for advancing or lifting the color or carbon tape and the erasing tape in one writing unit. or similar office machine
US4235664A (en) * 1979-06-29 1980-11-25 Hutchinson Industrial Corporation Unitary type-carrier elements and method of making same
US4318340A (en) * 1979-12-17 1982-03-09 Norwood Marking & Equipment Co., Inc. Variable tape advance imprint marker
DE2951610A1 (en) * 1979-12-21 1981-07-02 Olympia Werke Ag, 2940 Wilhelmshaven Typewriter or office machine ink strip cassette - has associated control components housed in store ribbon intake and outlet space
DE3003886A1 (en) * 1980-02-02 1981-08-13 Olympia Werke Ag, 2940 Wilhelmshaven RIBBON CASSETTE FOR A WRITING O.AE. OFFICE MACHINE

Also Published As

Publication number Publication date
DE3166232D1 (en) 1984-10-31
ATE9560T1 (en) 1984-10-15
EP0033532A3 (en) 1982-10-27
US4440514A (en) 1984-04-03
DE3003886C2 (en) 1988-09-01
DE3003886A1 (en) 1981-08-13
EP0033532A2 (en) 1981-08-12

Similar Documents

Publication Publication Date Title
EP0033532B1 (en) Ink ribbon cartridge for a typewriter or the like
DE2810768A1 (en) DRIVE DEVICE FOR THE RIBBON OF WRITING, DATA OR SIMILAR MACHINES
DE2328443B2 (en) Ribbon guide for typewriters
DE1611468B2 (en) Printing office machine with ribbon feeder
DE3128069A1 (en) RELEASABLE RIBBON BLOCKING DEVICE
EP0179202A1 (en) Ink ribbon cartridge for type writers or similar business machines
DE3011992C2 (en) Ribbon drive for a high-speed printer
DE2951610A1 (en) Typewriter or office machine ink strip cassette - has associated control components housed in store ribbon intake and outlet space
EP0000413B1 (en) Drive mechanism for printers, either for progressing or reversing an ink ribbon, or for retracting the printing head
CH652350A5 (en) Cartridge for endless ink ribbon for a typewriter or similar office machine
DE3625089C2 (en)
DE2547957B2 (en) Erasing device for power-driven typewriters and other office machines
DE2835002C2 (en) Tape tensioning device for a one-time use ribbon in typewriters or similar office machines
DE3346607C2 (en)
DE8002780U1 (en) RIBBON CASSETTE FOR A WRITING O.AE. OFFICE MACHINE
DE2733286C2 (en) Device for feeding a colored film in a printing or embossing machine
DE914619C (en) Device for the automatic reversal of the conveying direction of winding spools, especially for the ribbon reversal in teletyping machines
DE2731607C3 (en) Drive device for transporting or reversing the transport direction of an ink ribbon as required and for pivoting the print head in printing devices
DE215255C (en)
DE2736040A1 (en) Transport direction changing mechanism for ink ribbon - has toothed rod extendable within pivot region of toothed planet wheel
DE8011172U1 (en) Continuous ribbon cassette for a typewriter or similar office machine
DE2446779C2 (en) REWIND REEL FOR SINGLE-USE RIBBONS IN POWERED TYPING AND SIMILAR OFFICE MACHINES
DE2636101A1 (en) Typewriter ribbon storage and guide unit - provides compact storage using small dia. spools for non-reusable ribbon
DE3938211A1 (en) Ink ribbon tensioner for typewriter ribbon cassette - uses sprung pivotable braking arms for automatic tensioning after each ribbon change
DE2737096A1 (en) Reversible drive for ink ribbon of line printer - has gear train with output gear mounted on pivoted arm which is latched in position

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT SE

17P Request for examination filed

Effective date: 19821102

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

REF Corresponds to:

Ref document number: 9560

Country of ref document: AT

Date of ref document: 19841015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3166232

Country of ref document: DE

Date of ref document: 19841031

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: REGENTROP & BERNARD GMBH

Effective date: 19850625

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: OLYMPIA AKTIENGESELLSCHAFT

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: OLYMPIA AKTIENGESELLSCHAFT

27C Opposition proceedings terminated

Effective date: 19860510

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: AEG OLYMPIA AKTIENGESELLSCHAFT

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940308

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19941208

Year of fee payment: 15

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: OLYMPIA OFFICE VERTRIEBSGESELLSCHAFT MBH

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950116

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950117

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19950118

Year of fee payment: 15

EAL Se: european patent in force in sweden

Ref document number: 81100710.3

REG Reference to a national code

Ref country code: FR

Ref legal event code: CJ

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950428

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19960131

Ref country code: GB

Effective date: 19960131

Ref country code: LI

Effective date: 19960131

Ref country code: AT

Effective date: 19960131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST