EP0447787B1 - Cassette à ruban encreur avec bobines à ruban encreur rechargeables - Google Patents

Cassette à ruban encreur avec bobines à ruban encreur rechargeables Download PDF

Info

Publication number
EP0447787B1
EP0447787B1 EP91101823A EP91101823A EP0447787B1 EP 0447787 B1 EP0447787 B1 EP 0447787B1 EP 91101823 A EP91101823 A EP 91101823A EP 91101823 A EP91101823 A EP 91101823A EP 0447787 B1 EP0447787 B1 EP 0447787B1
Authority
EP
European Patent Office
Prior art keywords
spool
take
ink ribbon
bearing
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91101823A
Other languages
German (de)
English (en)
Other versions
EP0447787A2 (fr
EP0447787A3 (en
Inventor
Uwe Schmidt
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 OFFICE VERTRIEBSGESELLSCHAFT MBH
Original Assignee
Olympia Office Vertriebsgesellschaft mbH
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
Application filed by Olympia Office Vertriebsgesellschaft mbH filed Critical Olympia Office Vertriebsgesellschaft mbH
Publication of EP0447787A2 publication Critical patent/EP0447787A2/fr
Publication of EP0447787A3 publication Critical patent/EP0447787A3/de
Application granted granted Critical
Publication of EP0447787B1 publication Critical patent/EP0447787B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41J32/00—Ink-ribbon cartridges

Definitions

  • the invention relates to a ribbon cassette with reloadable ribbon spools of the type specified in the preamble of claim 1.
  • Ribbon cartridges for typewriters or office machines of a similar design are subject to different design requirements, and above all they should be easy to replace with one-hand operation. Since they are also designed as disposable parts, it has started to replace the ribbon spools several times before the ribbon cartridges are thrown away.
  • the ribbon cassette has a hinged cover which can be locked and unlocked by means of a hand lever.
  • this manual control lever also serves to disengage the take-up spool with a spiked roller which can be driven in the cassette.
  • This take-up spool is rotatably mounted on a pivot lever on a bearing axis under spring tension.
  • the bearing axis for the take-up spool is not arranged perpendicular to the bottom of the cassette. As a result, pushing up the core of the take-up spool on the bearing axis and also crowned winding of the tape reel cannot be avoided. This can even result in the hinged lid being lifted or the ribbon transport being blocked.
  • the invention has for its object to provide a ribbon cassette with reloadable ribbon spools, in which the disadvantages mentioned above are avoided and in which a safe winding of the ribbon roll is guaranteed until the ribbon is fully used.
  • This object is achieved by the invention characterized in claim 1.
  • FIG. 1 shows a reloadable ink ribbon cassette 1, which consists of a pot-shaped base part 3 and a cover 5 which can be closed at the opening.
  • the cover 5 can in this case be connected in an articulated manner to a side wall 7 of the base part 3 via rotary joints 9, 11 and can be firmly connected to the base part 3 by means of a locking lever 13.
  • This locking lever 13 can be pivoted about an axis 15 in the base part 3 and has a control arm 17 which, with a slot-shaped recess 18, engages around a guide surface 19 on a pivot lever 21 in a form-fitting manner.
  • the pivot lever 21 can be acted upon counterclockwise about an axis 23 by means of a spring 57.
  • a take-up spool 27 is rotatably mounted about a bearing axis 25.
  • the outer winding of this take-up spool 27 stands with a steel wheel 29 in drive connection, which is mounted rotatably about a bearing axis 31 and is in engagement with a gear 35 of a drive wheel 41 via a gear 33.
  • This drive wheel 41 has a cross-slot-like recess 39, in which a drive element 37 engages in a form-fitting manner.
  • This drive element 37 can be driven in a known manner by a drive motor, not shown.
  • the ink ribbon 47 coming from a supply reel 53 passes through a deflection roller 51 and a deflection edge 49 from the inside of the cassette and is then passed through the deflection edge 45 again into the inside of the cassette, from where it then reaches the take-up reel 27 via a deflection roller 43 .
  • the supply spool 53 is rotatably mounted in the cassette about a bearing axis 55 and is connected to a brake disk 56 in a known manner.
  • the spring 57 is hooked on the one hand with a hooking eye 60 into a hooking 59 in the bottom part 61 and on the other hand with a hooking 62 on a hooking 63 on the pivot lever 21, the spring 57 by means of a support rib 65 around the bearing 64 of the Swivel lever 21 is turned around. This deflection makes it possible to use a long spring with a slightly increasing spring characteristic.
  • FIGS. 2 to 4 show details of the bearing axis 25 and the take-up spool 27.
  • the bearing axis 25 has at its free end a radially protruding locking lug 38 against which a circumferential stop edge 32 which is arranged concentrically with the bearing bore 34 in the core 28 of the take-up spool 27 rests resiliently in the engaged position of the spiked wheel 29 when the take-up spool 27 is unwound. in such a way that the radial play between the bearing axis 25 and the bearing bore 34 is pushed out and thus a displacement of the take-up spool 27 against the cover 5 is prevented.
  • the broken line of the pivot lever 21 in Figure 1 shows the change position for the two ribbon spools 27, 53.
  • the bearing axis 25 is, moreover, fixedly arranged on the pivot lever 21 and has a flattening below a narrow, cylindrical end section 36 of a length which is somewhat larger than the length of the bearing bore 34 in the core 28 of the take-up spool 27.
  • This flattening is arranged on the side of the bearing axis 25 opposite the pin wheel 29 and enables the core 28 of the take-up spool 27 to be displaced radially.
  • the bearing bore 34 in the core 28 of the take-up spool 27 has a radial recess at its upper end 30 to form the stop edge 32.
  • the recess 30 can also be omitted if the bearing axis is made correspondingly longer.
  • the flattening required for displacement on the bearing axis 25 is formed in accordance with FIGS. 2 and 3 in that the bearing axis 25 has a diameter with a reduced radius on one half below the cylindrical end section 36
  • the length of the bearing axis 25 with the reduced radius is somewhat larger than the length of the bearing bore 34 in the core 28, and the reduced diameter half 40 is arranged on the side opposite the pin wheel 29.
  • the longitudinal edges 44, 46 on the larger diameter halves 42 of the bearing axis 25 are rounded.
  • the cores 28 designed according to the invention ensure that the take-up spool 27 is easily placed on the bearing axles 25, so that after the pivoting lever 21 has been pivoted out of the latching position, the working position of the core 28 of the take-up spool 27 is secured against axial displacement in the simplest way. This ensures trouble-free winding of the ribbon and optimal use of the ribbon.

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)

Claims (4)

  1. Cassette de ruban encreur comprenant des bobines de ruban rechargeables, consistant en une bobine débitrice d'où est déroulé le ruban encreur et une bobine réceptrice pour réenrouler le ruban, les bobines étant montées rotatives sur des axes à l'intérieur de la cassette, l'axe pour la bobine réceptrice étant disposé sur un levier pivotant chargé par un ressort de traction, de sorte que la spire extérieure de la bobine réceptrice soit toujours maintenue en prise, de façon fiable, avec une roue à picots montée dans la cassette de manière à pouvoir être entraînée en rotation, caractérisée en ce que le noyau (28) de la bobine réceptrice (27) est monté avec du jeu radial sur l'axe (25), que cet axe (25) présente à son extrémité libre une saillie d'arrêt (38) dépassant radialement sur un côté et contre laquelle s'applique élastiquement, quand la roue à picots (29) est en prise avec la spire extérieure de la bobine réceptrice (27), un épaulement ou un bord de butée annulaire (32) agencé concentriquement au perçage (34) prévu dans le noyau (28) pour le montage rotatif de la bobine réceptrice (27), de telle sorte qu'après la suppression par poussée du jeu radial entre l'axe (25) et le perçage (34), le déplacement de la bobine réceptrice (27) en direction du couvercle (5) de la cassette est rendu impossible, que l'axe (25) est disposé fixe sur le levier pivotant (21) et comporte, au-dessous d'un étroit segment extrême cylindrique (36), un aplatissement dont la longueur dépasse légèrement la longueur du perçage (34) du noyau (28) pour le montage rotatif de la bobine réceptrice (27), et que l'aplatissement est prévu sur le côté opposé à la roue à picots (29) de l'axe (25).
  2. Cassette de ruban encreur selon la revendication 1, caractérisée en ce que le perçage (34) du noyau (28) pour le montage rotatif de la bobine réceptrice (27) présente à son extrémité supérieure un chambrage (30) pour la formation de l'épaulement de butée (32).
  3. Cassette de ruban encreur selon la revendication 1, caractérisée en ce que l'axe (25) possède, au-dessous d'un étroit segment extrême cylindrique (36), sur une moitié d'axe (40) dans le sens du diamètre, un rayon plus petit, en ce que la longueur de la partie de l'axe (25) comportant la moitié (40) de diamètre réduit est un peu plus grande que la longueur du perçage (34) du noyau (28) pour le montage rotatif de la bobine réceptrice (27), et en ce que la moitié de diamètre réduit (40) est disposée sur le côté opposé à la roue à picots (29).
  4. Cassette de ruban encreur selon la revendication 3, caractérisée en ce que les arêtes longitudinales (44, 46) à la transition avec la moitié (42) de plus grand diamètre de l'axe (25) présentent chacune un arrondi.
EP91101823A 1990-03-21 1991-02-09 Cassette à ruban encreur avec bobines à ruban encreur rechargeables Expired - Lifetime EP0447787B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4009056 1990-03-21
DE4009056A DE4009056A1 (de) 1990-03-21 1990-03-21 Farbbandkassette mit nachladbaren farbbandspulen

Publications (3)

Publication Number Publication Date
EP0447787A2 EP0447787A2 (fr) 1991-09-25
EP0447787A3 EP0447787A3 (en) 1991-11-06
EP0447787B1 true EP0447787B1 (fr) 1995-05-17

Family

ID=6402723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91101823A Expired - Lifetime EP0447787B1 (fr) 1990-03-21 1991-02-09 Cassette à ruban encreur avec bobines à ruban encreur rechargeables

Country Status (2)

Country Link
EP (1) EP0447787B1 (fr)
DE (2) DE4009056A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE440628B (sv) * 1982-08-20 1985-08-12 Facit Ab Anordning for forskjutbar och roterbar lagring av en rulle pa en axel
DE8700080U1 (fr) * 1987-01-02 1987-02-19 Regentrop & Bernard Gmbh, 5600 Wuppertal, De
DE3737657A1 (de) * 1987-11-06 1989-05-18 Olympia Aeg Nachladbare farbbandkassette fuer schreib- oder bueromaschinen aehnlicher bauart

Also Published As

Publication number Publication date
DE4009056A1 (de) 1991-09-26
DE59105484D1 (de) 1995-06-22
EP0447787A2 (fr) 1991-09-25
EP0447787A3 (en) 1991-11-06

Similar Documents

Publication Publication Date Title
DE2553329C2 (de) Anordnung zum Antrieb eines Carbonbandes in einer Kassette
DE2754771C2 (de) Bandmeßgerät mit einer austauschbaren Patrone
DE2321651A1 (de) Auswechselbare farbbandkassette fuer schreibmaschinen oder dergleichen
DE3138441C2 (fr)
DE2810768A1 (de) Antriebsvorrichtung fuer das farbband von schreib-, daten- oder aehnlichen maschinen
EP0214379B1 (fr) Assemblage de remplacement pour la cassette rechargeable d'une machine à écrire ou similaire
DE3003886C2 (fr)
DE69532141T2 (de) Bandkassette für ein Übertragungswerkzeug für Beschichtungsfilm und ein Übertragungswerkzeug für Beschichtungsfilm
EP0279242A2 (fr) Unité de remplacement pour une cartouche à ruban encreur
EP0279243B1 (fr) Cartouche à ruban encreur à bobines rechargeables
EP0058847B1 (fr) Cassette de ruban encreur pouvant être mise sur une machine à écrire ou sur une machine de bureau analogue
EP0447787B1 (fr) Cassette à ruban encreur avec bobines à ruban encreur rechargeables
DE2547957C3 (de) Löschvorrichtung für kraftangetriebene Schreib- o.a. Büromaschinen
EP0272458A1 (fr) Dispositif de lancement
CH678037A5 (fr)
DE3625089C2 (fr)
DE2437355C2 (de) Faksimile-Empfangsgerät
DE3623820C2 (de) Nachladbare Farbbandkassette für Schreib- oder Büromaschinen ähnlicher Bauart
EP0447786A2 (fr) Cassette à ruban encreur avec bobines à ruban encreur rechargeables
DE3623819C2 (de) Nachladbare Farbbandkassette für Schreib- oder Büromaschinen ähnlicher Bauart
DE2310971C3 (de) Vorrichtung zum Transport eines Farbbandes mit motorischem Antrieb und selbsttätiger Umschaltung
DE3705056A1 (de) Farbbandkassette mit nachladbaren farbbandspulen
DE2803968C3 (de) Farbvorrichtung in Schreibmaschinen für dokumentensicheres Schreiben
DE2455971C3 (de) Aufwickelspule für einmalig verwendbare Farbbänder in kraftangetriebenen Schreib- und ähnlichen Büromaschinen
EP0304573A1 (fr) Cassette à ruban encreur avec bobines à ruban encreur rechargeables

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

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

AK Designated contracting states

Kind code of ref document: A3

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

17P Request for examination filed

Effective date: 19920519

17Q First examination report despatched

Effective date: 19931119

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OLYMPIA OFFICE VERTRIEBSGESELLSCHAFT MBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 59105484

Country of ref document: DE

Date of ref document: 19950622

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950710

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

Ref country code: GB

Effective date: 19960209

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960228

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960901

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

Effective date: 19960209

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Effective date: 19961031

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960901

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

Ref country code: DE

Effective date: 19961101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050209