EP0298284A1 - Ink ribbon cassette for type-writing or similar office machines - Google Patents

Ink ribbon cassette for type-writing or similar office machines Download PDF

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Publication number
EP0298284A1
EP0298284A1 EP88109596A EP88109596A EP0298284A1 EP 0298284 A1 EP0298284 A1 EP 0298284A1 EP 88109596 A EP88109596 A EP 88109596A EP 88109596 A EP88109596 A EP 88109596A EP 0298284 A1 EP0298284 A1 EP 0298284A1
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EP
European Patent Office
Prior art keywords
cassette
ribbon
take
reel
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88109596A
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German (de)
French (fr)
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EP0298284B1 (en
Inventor
Uwe Schmidt
Arthur Ing. Grad. Kittel
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AEG Olympia Office GmbH
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AEG Olympia AG
AEG Olympia Office GmbH
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Publication of EP0298284A1 publication Critical patent/EP0298284A1/en
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Publication of EP0298284B1 publication Critical patent/EP0298284B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J33/00—Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
    • B41J33/14—Ribbon-feed devices or mechanisms
    • B41J33/40—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction
    • B41J33/42—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction manually
    • 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
    • B41J32/00—Ink-ribbon cartridges

Definitions

  • the invention relates to an ink ribbon cassette for typewriters or similar office machines of the type specified in the preamble of claim 1.
  • Modern office machines are designed to hold closed ribbon supply cartridges which contain a ribbon supply or supply spool and a ribbon take-up spool with a piece of ribbon which run outside the cartridges between the two spools so that it can be picked up by the ribbon guides of the office machines.
  • the ribbons in such cartridges are single pass ribbons and are also known under the name carbon ribbons. After the ribbon has run through, it is used up in such a way that a new cassette must be inserted. This replacement of ribbon cartridges may also be necessary shortly before a letter or other document is finished. If no new ribbon cassette is available in such a case, it may take a considerable time until the letter or document is finally completed.
  • the invention is based on the object of providing an ink ribbon cassette which can be used to generate characters with the ribbon that is already used up even after the ribbon has run through. This object is achieved by the invention characterized in claim 1.
  • the ribbon cassette according to the invention enables the possibility of rewinding, so that in emergencies the completion of a document is also possible without exchanging the ribbon cassette.
  • FIG. 1 shows an ink ribbon cassette 1 for typewriters or similar office machines with a cassette housing 2, which consists of a pot-shaped base part 3 and a cover 4.
  • a supply spool 5 is rotatably mounted on the bottom part 3, from which the ink ribbon is guided out of an outlet opening 8 of the housing 2 via deflection pins 6, 7, from there through the printing station and then again through an inlet opening 9 and deflection pins 10 , 11 arrives at a take-up spool 12.
  • This take-up reel 12 has a take-up core 13 which is rotatably mounted on a bearing pin 14 of a pivoting lever 16 which can be pivoted about the bearing axis 15.
  • a spring 17 articulated on the swivel lever 16 ensures that the ink ribbon 18 on the outer reel of the take-up spool 12 is always held in engagement with a toothed drive roller 19.
  • This drive roller 19 is positively coupled when placed on a cassette holder 20 in the machine with a cutting-shaped transport device 21 arranged in this cassette holder 20.
  • the bearing pin 14 slides in an elongated hole 23 of the housing 2, whose longitudinal edges 24, 25 to the pivot axis 15 of the pivot lever 16 are formed as radially shaped tracks.
  • the take-up spool 12 can be locked in the locking position by means of a resilient locking lug 26 which interacts with the bearing pin 14 and which projects into the radially shaped path in the region at the end of the elongated hole 23.
  • this elongated hole 23 is arranged in the cover 4 of the cassette housing 2, the latching lug 26 likewise being part of the cover 4 and having an undercut 27 for springing.
  • the bearing pin 14 has an extension protruding from the cassette housing 2 for gripping by means of a finger or for receiving an actuating button for locking and unlocking the pivoting lever 16.
  • the device for rewinding the supply reel 5 consists of a recess 28 in the hub 29, which is hexagonal for receiving a likewise hexagonal pencil or an Allen key.
  • the pivot lever 16 is pivoted with the take-up spool 12 into the locking position, the locking pin 14 being locked behind the resilient locking lug 26. In this latching position, the take-up spool is no longer in engagement with the drive roller 19. Then the supply spool 5 is turned back in the direction of the arrow 30 by means of a pencil, an Allen key or another tool. After this turning back, the pivot lever 16 is unlocked again by hand, so that the outer winding of the take-up reel 12 rests resiliently on the drive roller 19. The writing process can then be continued again.
  • the exchange of a new cassette can thus be done at a later time.
  • the toothed disc coupled to the supply spool 5 must have a toothing which enables the supply spool 4 to be rotated in both directions of rotation.
  • the resilient pawl 32 must also be designed accordingly.
  • the supply reel 5 can also be rewound using a coin or a screwdriver if the recess has corresponding receiving slots 33, 34 according to FIG. 1.
  • FIG. 3 shows a possibility of rewinding the ink ribbon, in which the drive roller can remain in engagement with the take-up spool 12.
  • the backstop 35 must be unlocked for the drive roller 19 for rewinding the ribbon 18 from the take-up reel 12 to the supply reel 5.
  • the drive roller 19 has a ratchet wheel 36, which can be locked against reverse rotation by a resilient pawl 37.
  • the pawl 37 is a locking position for disengagement with the ratchet wheel 36 adjustable.
  • the pawl 37 has a locking pin 38 which has a handle protruding from the housing 2 and is adjustable in a slot-like guide 39.
  • a longitudinal edge 40 of this guide 39 has a resilient locking lug 41 which projects into the movement path of the locking pin 38.
  • the pawl 37 when the ribbon has run through, the pawl 37 must be disengaged from the ratchet wheel 36 so that the supply reel can be rotated in the direction of the arrow 30 by the means described above. This also enables the operator to end the writing process without exchanging the ink ribbon cassette.

Abstract

If a single-use ink ribbon, for example a carbon ribbon, has completely passed through the printing station, a change of ribbon cassette must be undertaken. If in such a case no new cassette is available, the typing operation can, in some circumstances, only be resumed after a considerable delay. According to the present invention, this can be avoided by allowing, in an emergency, the typing operation to be completed without a change of cassette. This is achieved in that the take-up bobbin (12) for the reverse winding of the ink ribbon (18) can be brought into an unengaged position with respect to the driving roller (19) and can be locked in this position and in that the supply bobbin (5) possesses a device for reverse rotation opposed to its unwinding direction. As a result of the opportunity for reverse winding it is possible, in an emergency, to complete the typing operation or produce a finished letter without a change of cassette. No special tools or aids are necessary to reverse wind the ink ribbon. <IMAGE>

Description

Die Erfindung betrifft eine Farbbandkassette für Schreib- oder ähnliche Büromaschinen der im Oberbegriff des Patentanspruchs 1 angegebenen Art.The invention relates to an ink ribbon cassette for typewriters or similar office machines of the type specified in the preamble of claim 1.

Moderne Büromaschinen sind zur Aufnahme von verschlossenen Farb­bandvorratskassetten konstruiert, welche eine Farbbandvorrats- ­oder -zuführspule und eine Farbbandaufnahmespule mit einem Stück Farbband enthalten, die außerhalb der Kassetten zwischen den beiden Spulen verlaufen, so daß es von den Farbbandführungen der Büromaschinen aufgenommen werden kann. Die Farbbänder in der­artigen Kassetten sind Einzeldurchlauffarbbänder und sind auch unter dem Namen Karbonbänder bekannt. Nach Durchlauf des Farb­bandes ist dieses derart verbraucht, daß eine neue Kassette ein­gesetzt werden muß. Dieses Auswechseln von Farbbandkassetten kann auch kurz vor Beendigung eines Briefes oder eines sonstigen Schriftstückes erforderlich sein. Wenn in einem solchen Fall keine neue Farbbandkassette vorrätig ist, kann eine beträchtliche Zeit bis zur endgültigen Fertigstellung des Briefes bzw. des Schriftstückes vergehen.Modern office machines are designed to hold closed ribbon supply cartridges which contain a ribbon supply or supply spool and a ribbon take-up spool with a piece of ribbon which run outside the cartridges between the two spools so that it can be picked up by the ribbon guides of the office machines. The ribbons in such cartridges are single pass ribbons and are also known under the name carbon ribbons. After the ribbon has run through, it is used up in such a way that a new cassette must be inserted. This replacement of ribbon cartridges may also be necessary shortly before a letter or other document is finished. If no new ribbon cassette is available in such a case, it may take a considerable time until the letter or document is finally completed.

Der Erfindung liegt nun die Aufgabe zugrunde, eine Farbbandkas­sette zu schaffen, mit der auch nach Durchlauf des Farbbandes noch die Erzeugung von Schriftzeichen mit dem ansich bereits verbrauchten Band möglich ist. Diese Aufgabe wird durch die im Patentanspruch 1 gekennzeichnete Erfindung gelöst.The invention is based on the object of providing an ink ribbon cassette which can be used to generate characters with the ribbon that is already used up even after the ribbon has run through. This object is achieved by the invention characterized in claim 1.

Die erfindungsgemäße Farbbandkassette ermöglicht eine Rückspul­möglichkeit, wodurch in Notfällen die Fertigstellung eines Schriftstückes auch ohne Austausch der Farbbandkassette möglich ist.The ribbon cassette according to the invention enables the possibility of rewinding, so that in emergencies the completion of a document is also possible without exchanging the ribbon cassette.

Weitere vorteilhafte Ausgestaltungen des Erfindungsgegenstandes sind den weiteren Unteransprüchen zu entnehmen. Die Erfindung wird anhand von Ausführungsbeispielen im folgenden näher be­schrieben.Further advantageous refinements of the subject matter of the invention can be found in the further subclaims. The invention is described in more detail below using exemplary embodiments.

Es zeigen:

  • Figur 1 eine Draufsicht auf die Farbbandkassette,
  • Figur 2 eine Einzelheit aus Figur 1 in Seitenansicht und
  • Figur 3 die Antriebswalze mit der Rücklaufsperre.
Show it:
  • FIG. 1 shows a top view of the ink ribbon cassette,
  • Figure 2 shows a detail of Figure 1 in side view
  • Figure 3 shows the drive roller with the backstop.

Die Figur 1 zeigt eine Farbbandkassette 1 für Schreib- oder ähn­liche Büromaschinen mit einem Kassettengehäuse 2, das aus einem topfförmigen Bodenteil 3 und einem Deckel 4 besteht. In dem Kassettengehäuse 2 ist auf derem Bodenteil 3 eine Vorratsspule 5 drehbar gelagert, von der das Farbband über Umlenkstifte 6, 7 aus einer Austrittsöffnung 8 des Gehäuses 2 herausgeführt wird, von da durch die Druckstation gelangt und dann wieder durch eine Ein­trittsöffnung 9 und Umlenkstifte 10, 11 zu einer Aufwickelspule 12 gelangt. Diese Aufwickelspule 12 weist einen Aufwickelkern 13 auf, der auf einem Lagerzapfen 14 eines um die Lagerachse 15 schwenkbaren Schwenkhebels 16 drehbar gelagert ist. Eine an dem Schwenkhebel 16 angelenkte Feder 17 sorgt dafür, daß das Farbband 18 auf dem äußeren Wickel der Aufwickelspule 12 stets mit einer verzahnten Antriebswalze 19 in Eingriff gehalten wird. Diese An­triebswalze 19 wird beim Aufsetzen auf eine Kassettenaufnahme 20 in der Maschine mit einer in dieser Kassettenaufnahme 20 ange­ordneten schneidenförmig ausgebildeten Transportvorrichtung 21 formschlüssig gekuppelt. Beim Durchlauf des Farbbandes 18 durch die Druckstation in Pfeilrichtung 22 mittels der Antriebswalze 19 nimmt der Durchmesser der Aufwickelspule 12 ständig zu. Hierbei gleitet der Lagerzapfen 14 in einem Langloch 23 des Gehäuses 2, dessen Längskanten 24, 25 zu der Schwenkachse 15 des Schwenkhe­bels 16 als radial geformte Bahnen ausgebildet sind. Die Auf­wickelspule 12 ist mittels einer mit dem Lagerzapfen 14 zusam­menwirkenden federnden Rastnase 26 in der Raststellung verrast­bar, der im Bereich am Ende des Langloches 23 in die radial ge­formte Bahn hineinragt. Dieses Langloch 23 ist übrigens in dem Deckel 4 des Kassettengehäuses 2 angeordnet, wobei die Rastnase 26 ebenfalls Bestandteil des Deckels 4 ist und zum Federn eine Hinterschneidung 27 aufweist. Der Lagerzapfen 14 weist eine aus dem Kassettengehäuse 2 herausragende Verlängerung zum Anfassen mittels Finger oder zur Aufnahme eines Betätigungsknopfes zum Ver- und Entrasten des Schwenkhebels 16 auf.FIG. 1 shows an ink ribbon cassette 1 for typewriters or similar office machines with a cassette housing 2, which consists of a pot-shaped base part 3 and a cover 4. In the cassette housing 2, a supply spool 5 is rotatably mounted on the bottom part 3, from which the ink ribbon is guided out of an outlet opening 8 of the housing 2 via deflection pins 6, 7, from there through the printing station and then again through an inlet opening 9 and deflection pins 10 , 11 arrives at a take-up spool 12. This take-up reel 12 has a take-up core 13 which is rotatably mounted on a bearing pin 14 of a pivoting lever 16 which can be pivoted about the bearing axis 15. A spring 17 articulated on the swivel lever 16 ensures that the ink ribbon 18 on the outer reel of the take-up spool 12 is always held in engagement with a toothed drive roller 19. This drive roller 19 is positively coupled when placed on a cassette holder 20 in the machine with a cutting-shaped transport device 21 arranged in this cassette holder 20. When the ribbon 18 passes through the printing station in the direction of arrow 22 by means of the drive roller 19, the diameter of the take-up spool 12 increases continuously. Here, the bearing pin 14 slides in an elongated hole 23 of the housing 2, whose longitudinal edges 24, 25 to the pivot axis 15 of the pivot lever 16 are formed as radially shaped tracks. The take-up spool 12 can be locked in the locking position by means of a resilient locking lug 26 which interacts with the bearing pin 14 and which projects into the radially shaped path in the region at the end of the elongated hole 23. Incidentally, this elongated hole 23 is arranged in the cover 4 of the cassette housing 2, the latching lug 26 likewise being part of the cover 4 and having an undercut 27 for springing. The bearing pin 14 has an extension protruding from the cassette housing 2 for gripping by means of a finger or for receiving an actuating button for locking and unlocking the pivoting lever 16.

Die Vorrichtung zum Rückspulen der Vorratsspule 5 besteht aus einer Ausnehmung 28 in der Nabe 29, die sechseckig zur Aufnahme eines ebenfalls sechseckigen Bleistiftes oder eines Imbusschlüs­sels ausgebildet ist. Zum Rückspulen des Farbbandes 18 wird der Schwenkhebel 16 mit der Aufwickelspule 12 in die Raststellung verschwenkt, wobei der Rastzapfen 14 hinter der federnden Rast­nase 26 verrastet. In dieser Raststellung ist die Aufwickelspule nicht mehr in Eingriff mit der Antriebswalze 19. Dann wird die Vorratsspule 5 in Pfeilrichtung 30 mittels eines Bleistiftes, Imbusschlüssels oder eines sonstigen Hilfsmittels zurückgedreht. Nach diesem Zurückdrehen wird der Schwenkhebel 16 wieder von Hand entrastet, so daß der äußere Wickel der Aufwickelspule 12 wieder federnd an der Antriebswalze 19 anliegt. Damit kann der Schreib­vorgang wieder fortgesetzt werden. Der Austausch einer neuen Kas sette kann somit zu einem späteren Zeitpunkt erfolgen. Die mit der Vorratsspule 5 gekoppelte Zahnscheibe muß eine Verzahnung aufweisen, die ein Drehen der Vorratsspule 4 in beiden Drehrich­tungen ermöglicht. Zu diesem Zweck muß auch die federnde Klinke 32 entsprechend ausgebildet sein.The device for rewinding the supply reel 5 consists of a recess 28 in the hub 29, which is hexagonal for receiving a likewise hexagonal pencil or an Allen key. For rewinding the ribbon 18, the pivot lever 16 is pivoted with the take-up spool 12 into the locking position, the locking pin 14 being locked behind the resilient locking lug 26. In this latching position, the take-up spool is no longer in engagement with the drive roller 19. Then the supply spool 5 is turned back in the direction of the arrow 30 by means of a pencil, an Allen key or another tool. After this turning back, the pivot lever 16 is unlocked again by hand, so that the outer winding of the take-up reel 12 rests resiliently on the drive roller 19. The writing process can then be continued again. The exchange of a new cassette can thus be done at a later time. The toothed disc coupled to the supply spool 5 must have a toothing which enables the supply spool 4 to be rotated in both directions of rotation. For this purpose, the resilient pawl 32 must also be designed accordingly.

Das Rückspulen der Vorratssspule 5 kann auch über ein Geldstück oder einen Schraubendreher erfolgen, wenn die Ausnehmung ent­sprechende Aufnahmeschitze 33, 34 gemäß Figur 1 aufweist.The supply reel 5 can also be rewound using a coin or a screwdriver if the recess has corresponding receiving slots 33, 34 according to FIG. 1.

In der Figur 3 ist eine Möglichkeit des Rückspulens des Farbban­des dargestellt, bei dem die Antriebswalze mit der Aufwickelspule 12 in Eingriff belibenkann. Hierbei muß die Rücklaufsperre 35 für die Antriebswalze 19 zum Rückspulen des Farbbandes 18 von der Aufwickelspule 12 auf die Vorratsspule 5 entsperrt werden. Hier­bei weist die Antriebswalze 19 ein Sperrad 36 auf, das durch eine federnde Sperrklinke 37 gegen Rückdrehung sperrbar ist. Die Sperrklinke 37 ist ein eine Raststellung zum Außereingriffbringen mit dem Sperrad 36 verstellbar. Die Sperrklinke 37 weist einen Rastzapfen 38 auf, der einen aus dem Gehäuse 2 herausragenden Handgriff hat und in einer langlochartigen Führung 39 verstellbar ist. Eine Längskante 40 dieser Führung 39 weist eine in die Be­wegungsbahn des Rastzapfens 38 hineinragende, federnde Rastnase 41 auf. Wenn das Farbband durchgelaufen ist muß in diesem Fall die Sperrklinke 37 außer Eingriff mit dem Sperrad 36 gebracht werden, so daß die Vorratsspule mit den oben bescriebenen Mit­teln in Pfeilrichtung 30 gedreht werden kann. Auch hierdurch ist es der Bedienungsperson möglich, den Schreibvorgang ohne eines Austausches der Farbbandkassette zu beenden.FIG. 3 shows a possibility of rewinding the ink ribbon, in which the drive roller can remain in engagement with the take-up spool 12. Here, the backstop 35 must be unlocked for the drive roller 19 for rewinding the ribbon 18 from the take-up reel 12 to the supply reel 5. Here, the drive roller 19 has a ratchet wheel 36, which can be locked against reverse rotation by a resilient pawl 37. The pawl 37 is a locking position for disengagement with the ratchet wheel 36 adjustable. The pawl 37 has a locking pin 38 which has a handle protruding from the housing 2 and is adjustable in a slot-like guide 39. A longitudinal edge 40 of this guide 39 has a resilient locking lug 41 which projects into the movement path of the locking pin 38. In this case, when the ribbon has run through, the pawl 37 must be disengaged from the ratchet wheel 36 so that the supply reel can be rotated in the direction of the arrow 30 by the means described above. This also enables the operator to end the writing process without exchanging the ink ribbon cassette.

Claims (10)

1. Farbbandkassette für Schreib- oder ähnliche Büromaschinen mit einer Austritts- und einer Eintrittsöffnung in dem Ge­häuse für das Farbband und mit einer Vorrats- und einer Aufwickelspule zum Aufwickeln des durch die Druckstation gelaufenen Farbbandes, wobei die Aufwickelspule durch eine Antriebswalze antreibbar ist, die bei auf eine Kassetten­aufnahme aufgesetzter Kassette mit einer Transportvorrich­tung formschlüssig gekuppelt wird und die an dem auf der Aufwickelspule befindlichen Farbbandwickel unter Federkraft anliegt, dadurch gekennzeichnet, daß die Auf­wickelspule (12) zum Rückspulen des Farbbandes (18) in eine Außereingriffslage mit der Antriebswalze (19) bring- und in dieser Lage verrastbar ist und daß die Vorratsspule (5) eine Vorrichtung zum Rückdrehen entgegengesetzt zu ihrer Ab­wickelrichtung aufweist.1. Ribbon cassette for typewriters or similar office machines with an outlet and an inlet opening in the housing for the ribbon and with a supply and a take-up reel for winding up the ink ribbon that has passed through the printing station, the take-up reel being drivable by a drive roller, which at is positively coupled to a cassette mounted cassette with a transport device and which rests under spring force on the ribbon roll located on the take-up reel, characterized in that the take-up spool (12) for rewinding the ink ribbon (18) into an disengaged position with the drive roller (19) - And can be locked in this position and that the supply spool (5) has a device for turning back opposite to its unwinding direction. 2. Kassette nach Anspruch 1, wobei die Antriebswalze ortsfest drehbar in dem Kassenttengehäuse angeordnet ist und die Auf­wickelspule auf einem Lagerzapfen eines abgefederten Schwenk­hebels drehbar gelagert ist, dadurch gekennzeich­net, daß der Lagerzapfen (14) in einem Langloch (23) des Gehäuses (2) verschiebbar gelagert ist, dessen Längskanten (24, 25) zu der Schwenkachse (15) des Schwenkhebels (16) als radial geformte Bahnen ausgebildet sind.2. Cassette according to claim 1, wherein the drive roller is rotatably arranged in the cassette housing and the take-up spool is rotatably mounted on a journal of a sprung pivot lever, characterized in that the journal (14) in an elongated hole (23) of the housing (2) is slidably mounted, the longitudinal edges (24, 25) of the pivot axis (15) of the pivot lever (16) are designed as radially shaped tracks. 3. Kassette nach Anspruch 2, dadurch gekennzeich­net, daß die Aufwickelspule (12) mittels einer mit dem Lagerzapfen (14) zusammenwirkenden federnden Rastnase (26) in der Raststellung verrastbar ist, die im Bereich am Ende des Langloches (23) in die radial geformte Bahn hineinragt.3. Cassette according to claim 2, characterized in that the winding spool (12) by means of a bearing pin (14) cooperating resilient locking lug (26) can be locked in the locking position, which in the region at the end of the elongated hole (23) in the radially shaped Railway protrudes. 4. Kassette nach Anspruch 3, dadurch gekennzeich­net, daß das Langloch (23) in dem Deckel (4) des Kasset­tengehäuses (2) angeordnet ist und daß die Rastnase (26) Be­standteil des Deckels (4) ist und zum Federn eine Hinter­schneidung (27) aufweist.4. Cassette according to claim 3, characterized in that the elongated hole (23) in the cover (4) of the cassette housing (2) is arranged and that the locking lug (26) is part of the cover (4) and an undercut for springing (27th ) having. 5. Kassette nach Anspruch 4, dadurch gekennzeich­net, daß der Lagerzapfen (14) eine aus dem Kassenttenge­häuse (2) herausragende Verlängerung zum Anfassen mittels Finger oder zur Aufnahme eines Betätigungsknopfes zum Ver- ­und Entrasten des Schwenkhabels (16) aufweist.5. Cassette according to claim 4, characterized in that the bearing pin (14) has an extension from the cassette housing (2) projecting extension for gripping by means of a finger or for receiving an actuating button for locking and unlocking the swivel handle (16). 6. Kassette nach einem der vorhergehenden Ansprüche, da­durch gekennzeichnet, daß die Vorrichtung zum Rückspulen der Vorratsspule (5) aus einer Ausnehmung (28) in deren Nabe (29) besteht und daß die Ausnehmung (28) mehr­eckig zur formschlüssigen Aufnahme eines vieleckigen Blei­stiftes oder eines Imbusschlüssels ausgebildet ist.6. Cassette according to one of the preceding claims, characterized in that the device for rewinding the supply reel (5) consists of a recess (28) in the hub (29) and that the recess (28) polygonal for the positive reception of a polygonal pencil or an Allen key is formed. 7. Kassette nach einem der vorhergehenden Ansprüche, da­durch gekennzeichnet, daß die Vorrichtung zum Rückspulen der Vorratsspule (5) schlitzförmige Ausnehmungen in deren Nabe (28) besteht, die zur formschlüssigen Aufnahme eines normalen Schraubendrehers oder eines Geldstücks dienen.7. Cassette according to one of the preceding claims, characterized in that the device for rewinding the supply reel (5) has slot-shaped recesses in the hub (28) thereof which are used for the positive reception of a normal screwdriver or a coin. 8. Farbbandkassette für Schreib- oder ähnliche Büromaschinen mit einer Austritts- und einer Eintrittsöffnung in dem Ge­häuse für das Farbband und mit einer Vorrats- und einer Auf­wickelspule zum Aufwickeln des durch die Druckstation gelau­fenen Farbbandes, wobei die Aufwickelspule durch eine An­triebswalze antreibbar ist, die bei auf eine Kassettenauf­nahme aufgesetzter Kassette mit einer Transportvorrichtung formschlüssig gekuppelt wird und die an dem auf der Auf­wickelspule befindlichen Farbbandwickel unter Federkraft anliegt, dadurch gekennzeichnet, daß die Rück­ laufsperre (35) für die Antriebswalze (19) zum Rückspulen des Farbbandes (18) von der Aufwickelspule (12) auf die Vorratsspule (5) entsperrbar ist.8. Ribbon cassette for typewriters or similar office machines with an outlet and an inlet opening in the housing for the ribbon and with a supply and a take-up reel for winding up the ribbon that has passed through the printing station, the take-up reel being drivable by a drive roller, which at on a cassette holder placed cassette with a transport device is positively coupled and which rests on the ribbon reel located on the take-up spool under spring force, characterized in that the back Barrier (35) for the drive roller (19) for rewinding the ribbon (18) from the take-up reel (12) to the supply reel (5) can be unlocked. 9. Kassette nach Anspruch 8, dadurch gekennzeich­net, daß die Antriebswalze (19) ein Sperrad (36) auf­weist, das durch eine federnde Sperrklinke (37) gegen Rück­drehung sperrbar ist und daß die Sperrklinke (37) in eine Raststellung zum Außereingriffbringen mit dem Sperrad (36) verstellbar ist.9. Cassette according to claim 8, characterized in that the drive roller (19) has a ratchet wheel (36) which can be locked against rotation by a resilient pawl (37) and in that the pawl (37) is brought into a detent position for disengagement with the ratchet wheel (36) is adjustable. 10. Kassette nach Anspruch 9, dadurch gekennzeich­net, daß die Sperrklinke (37) einen Rastzapfen (38) auf­weist, der einen aus dem Gehäuse (2) herausragenden Hand­griff hat und der in einer langlochartigen Führung (39) ver­stellbar ist und daß eine Längskante (40) eine in die Bewe­gungsbahn des Rastzapfens (38) hineinragende, federnde Rast­nase (41) aufweist.10. Cassette according to claim 9, characterized in that the pawl (37) has a locking pin (38) which has a handle which projects from the housing (2) and which is adjustable in a slot-like guide (39) and that a longitudinal edge ( 40) has a resilient locking lug (41) projecting into the movement path of the locking pin (38).
EP88109596A 1987-07-04 1988-06-16 Ink ribbon cassette for type-writing or similar office machines Expired - Lifetime EP0298284B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873722226 DE3722226A1 (en) 1987-07-04 1987-07-04 RIBBON CASSETTE FOR TYPEWRITING OR SIMILAR OFFICE MACHINES
DE3722226 1987-07-04

Publications (2)

Publication Number Publication Date
EP0298284A1 true EP0298284A1 (en) 1989-01-11
EP0298284B1 EP0298284B1 (en) 1991-08-07

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ID=6330962

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Application Number Title Priority Date Filing Date
EP88109596A Expired - Lifetime EP0298284B1 (en) 1987-07-04 1988-06-16 Ink ribbon cassette for type-writing or similar office machines

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US (1) US4990007A (en)
EP (1) EP0298284B1 (en)
DE (2) DE3722226A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318368A (en) * 1992-09-24 1994-06-07 Pitney Bowes Inc. Thermal transfer ribbon having ribbon follower
US5267801A (en) * 1992-12-30 1993-12-07 Dennis Huang Ribbon inker
WO1994022673A1 (en) * 1993-04-06 1994-10-13 Ayres David W Disposable ribbon cassette within a reloadable cartridge
JPH11348395A (en) * 1998-06-04 1999-12-21 Fuji Photo Film Co Ltd Printer, and method for preventing adhesion of dust to ink ribbon thereof
USD458295S1 (en) 2000-07-27 2002-06-04 Iimak Printer cassette
USD453179S1 (en) 2000-07-27 2002-01-29 Iimak Printer cassette
US6910819B2 (en) * 2003-08-12 2005-06-28 Brady Worldwide, Inc. Printer cartridge
US8324413B2 (en) * 2008-12-23 2012-12-04 Texaco Inc. Low melting point triglycerides for use in fuels
US8361172B2 (en) * 2008-12-23 2013-01-29 Chevron U.S.A. Inc. Low melting point triglycerides for use in fuels

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3625089A1 (en) * 1985-08-07 1987-02-19 Olympia Ag Ink-ribbon cartridge for typewriters or office machines of similar design

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Publication number Priority date Publication date Assignee Title
US3731781A (en) * 1968-07-16 1973-05-08 Ibm Ribbon supply cartridge
US3665855A (en) * 1970-04-24 1972-05-30 Scm Corp Spring-returned power driven ribbon
EP0036308B1 (en) * 1980-03-13 1984-07-18 Nec Corporation A cartridge for an inked ribbon for an impact printer
US4337001A (en) * 1980-07-28 1982-06-29 Scm Corporation Releasable ribbon locking device in a ribbon cartridge
JPS6137462A (en) * 1984-07-31 1986-02-22 Silver Seiko Ltd Cassette for printing ribbon

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3625089A1 (en) * 1985-08-07 1987-02-19 Olympia Ag Ink-ribbon cartridge for typewriters or office machines of similar design

Also Published As

Publication number Publication date
EP0298284B1 (en) 1991-08-07
DE3722226A1 (en) 1989-01-12
US4990007A (en) 1991-02-05
DE3864094D1 (en) 1991-09-12

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