EP0184548B1 - Cassette à ruban encreur - Google Patents

Cassette à ruban encreur Download PDF

Info

Publication number
EP0184548B1
EP0184548B1 EP85810453A EP85810453A EP0184548B1 EP 0184548 B1 EP0184548 B1 EP 0184548B1 EP 85810453 A EP85810453 A EP 85810453A EP 85810453 A EP85810453 A EP 85810453A EP 0184548 B1 EP0184548 B1 EP 0184548B1
Authority
EP
European Patent Office
Prior art keywords
roller
ribbon
drive
pressure ring
cartridge according
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
EP85810453A
Other languages
German (de)
English (en)
Other versions
EP0184548A1 (fr
Inventor
Markus Bürgin
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.)
FRANZ BUTTNER AG
Franz Buettner AG
Original Assignee
FRANZ BUTTNER AG
Franz Buettner 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
Application filed by FRANZ BUTTNER AG, Franz Buettner AG filed Critical FRANZ BUTTNER AG
Publication of EP0184548A1 publication Critical patent/EP0184548A1/fr
Application granted granted Critical
Publication of EP0184548B1 publication Critical patent/EP0184548B1/fr
Expired legal-status Critical Current

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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

  • a ribbon cassette according to the preamble of claim 1 is known from US-A-4 011 933.
  • This cassette has a drive with a drive wheel which is mounted in a stationary manner in the cassette housing and a pressure ring which is wrapped around by the ink ribbon and which is swinging on a bearing journal with play.
  • This drive is arranged on the take-up side and pulls the ink ribbon away from a supply roll via a printing location.
  • the belt tension wedges the pressure ring between the bearing journal and the drive wheel, so that the pressure of the pressure ring on the drive wheel and thus the frictional connection between the belt and drive wheel increases with increasing belt tension.
  • the invention has for its object to eliminate the aforementioned disadvantages of the prior art. This object is achieved by the characterizing features of claim 1.
  • the cassette shown in FIG. 1 has a lower housing part 1 and a cover 2, which is only indicated.
  • a supply roll 14 of an ink ribbon 4 is wound on a core 3 stored in the housing 1, 2.
  • the roller 14 is braked relative to the housing 1, 2.
  • the ink ribbon arrives in the feed direction marked with arrows via an outlet opening 5 and a printing location 6 to an inlet opening 7, from where it is drawn off by means of a drive and fed to a take-up core 12 which is also mounted in the housing 1, 2.
  • the drive comprises a drive wheel 11 wrapped in the ribbon 4.
  • the ribbon 4 is pressed against the drive wheel 11 by a pressure ring 8 also wrapped in the ribbon.
  • the pressure ring 8 is pivotally mounted on a roller 9 which is rotatably mounted on a bearing pin 10 fixed to the housing.
  • the pressure ring 8 surrounds the roller 9 with considerable play. As a result, the pressing force of the pressing ring 8 is directed against the drive wheel 11 after the ribbon 4 is pulled between the opening 7 and the pressing ring 8.
  • the pressing ring 8 rolls on the roller 9, which results in low friction.
  • the drive wheel 11 is rotatably mounted with cylindrical pins 28, 29 in a stepped bore 26 of the lower housing part 1 and in a stepped bore 27 of the cover 2.
  • the drive wheel 11 has flanges 21, 22 with conical shoulders 23, 24 on both sides of a toothed drive cylinder 25.
  • the drive wheel 11 has a driver clutch 30 for driving by a typewriter.
  • the part of the drive wheel 11 projecting over the cover 2 has a handwheel 32 and a groove 31, in which a round cord 13 for driving the winding core 12 is inserted.
  • the pressure ring 8 has a toothing 35 which meshes with the toothing of the drive cylinder 25.
  • the roller 9 is formed symmetrically to its radial center plane.
  • a cylindrical pressing surface 40 is adjoined on both sides by a cone 41, each of which merges into a cylindrical extension 42.
  • the difference between the radii of the surface 40 and the lugs 42 is greater than the radial width of the flanges 21, 22.
  • the embodiment according to FIG. 3 essentially corresponds to that according to FIG. 2 with the difference that the conical surfaces are mainly provided on the pressure ring 8 ".
  • the pressure ring 8" has a cylindrical inner surface 46. Via a cone 45, this goes into one side on both sides extended cylindrical approach 44 over.
  • the cylindrical contact surface 47 of the roller 9 "merges into a conically tapered surface 48 on both sides.
  • the radial displacement of the contact ring 8" which can be achieved by the conical surfaces 45, 48 is greater than the radial width of the flanges 21, 22.
  • the ribbon feed can be varied while maintaining the distance A of the bearing journal 10 from the axis of the drive wheel 11 in that the drive wheel 11 against another drive wheel 11 'with a smaller diameter B' of the drive cylinder 25 'and at the same time the roller 9 is exchanged for a roller 9' with a correspondingly larger outside diameter C '.
  • FIG. 6 shows a partial view of a further embodiment of the invention. It is a cassette with an endless, textile ink ribbon 4, which is drawn off in the direction of the arrow from an inlet opening, not shown, via a roller 56.
  • the roller 56 is mounted on a pin 57 integral with the lower housing part 1.
  • the drive in turn comprises a pressure ring 8, which is pivotally mounted on a roller 9, and a drive wheel 11.
  • the roller 9 is mounted on a bearing pin 10.
  • the ribbon 4 wraps around the pressure ring 8 and the drive wheel 11 along part of their circumference. It is pressed against the drive wheel 11 at the outlet end by means of a spring 51.
  • the spring 51 is tensioned between the drive wheel 11, a pressing cam 54 fixed to the housing and an abutment 55 fixed to the housing and secured against longitudinal displacement by a retaining cam 53.
  • the ribbon 4 is fed to a magazine 50 by the drive in loose loops.
  • One leg 52 of the spring 51 prevents the loose loops from passing through to the drive side of the drive.
  • the roller 9 is mounted on a bearing pin 10 fixed to the housing.

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)

Claims (8)

1. Cassette à ruban encreur comportant une transmission comprenant une roue motrice (11) et un anneau de pression (8) monté flottant avec jeu sur un élément, autour duquel passe le ruban encreur (4), caractérisée en ce que l'élément est un rouleau (9) monté de façon à pouvoir tourner librement dans un boîtier (1, 2) contre lequel s'appuie l'anneau de pression (8).
2. Cassette à ruban encreur selon la revendication 1, caractérisée en ce que le rouleau (9) est monté sur un tourillon (10) fixe par rapport au boîtier.
3. Cassette selon la revendication 1 ou 2, caractérisée en ce que le rouleau (9) est aminci coniquement au moins d'un côté à partir d'une surface de pression (40) cylindrique.
4. Cassette selon l'une des revendications 1 à 3, caractérisée en ce que la surface intérieure de l'anneau de pression (8") est élargie coniquement au moins d'un côté à partir d'une surface cylindrique (46).
5. Cassette selon l'une des revendications 1 à 4, caractérisée en ce que la roue motrice (11) comporte de chacun des deux côtés d'un cylindre moteur (25) autour duquel passe le ruban encreur (4), une bride (21, 22) pour le guidage du ruban encreur (4).
6. Cassette selon les revendications 3 et 5, caractérisée en ce que la différence des rayons de la surface de pression (40) et de la face frontale du rouleau (9) est au moins égale à la largeur radiale des brides (21, 22).
7. Cassette selon la revendication 4 ou 5, caractérisée en ce que le cylindre moteur (25) est denté.
8. Cassette selon la revendication 6, caractérisée en ce que l'anneau de pression (8) comporte à la périphérie extérieure une denture (35) engré- nant avec la denture du cylindre moteur (25).
EP85810453A 1984-11-23 1985-10-04 Cassette à ruban encreur Expired EP0184548B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5616/84 1984-11-23
CH5616/84A CH665802A5 (de) 1984-11-23 1984-11-23 Farbbandkassette.

Publications (2)

Publication Number Publication Date
EP0184548A1 EP0184548A1 (fr) 1986-06-11
EP0184548B1 true EP0184548B1 (fr) 1989-01-11

Family

ID=4296588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810453A Expired EP0184548B1 (fr) 1984-11-23 1985-10-04 Cassette à ruban encreur

Country Status (5)

Country Link
US (1) US4732500A (fr)
EP (1) EP0184548B1 (fr)
JP (1) JPS61132373A (fr)
CH (1) CH665802A5 (fr)
DE (1) DE3567409D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3123554B2 (ja) * 1989-06-07 2001-01-15 アルプス電気株式会社 リボンカセット
US5048986A (en) * 1990-05-18 1991-09-17 Ncr Corporation Self aligning inking roll for a printer
JPH04112480U (ja) * 1991-03-18 1992-09-30 ヒロセ電機株式会社 横型コネクタ構造
JP2560143Y2 (ja) * 1991-07-10 1998-01-21 日本航空電子工業株式会社 Ｆｐｃ接続用コネクタ
DE69408311T2 (de) * 1994-07-08 1998-06-04 Fullmark Pte Ltd Bandkassette
JP2000141840A (ja) * 1998-11-10 2000-05-23 Alps Electric Co Ltd リボンカセット
US6835012B1 (en) * 2002-09-04 2004-12-28 International Imaging Materials Inc. Ribbon cassette

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1998931A (en) * 1933-03-09 1935-04-23 Rca Corp Recording and reproduction of impulses
DE946024C (de) * 1951-11-14 1956-07-19 Deutsche Edelstahlwerke Ag Dauermagnetisch erregter Reibtrieb
US3042281A (en) * 1959-08-20 1962-07-03 Mohawk Business Machines Corp Roller
DE1213951B (de) * 1959-12-16 1966-04-07 Fortuna Werke Spezialmaschinen Gliederwalze fuer Bandmesserspaltmaschinen
NL129354C (fr) * 1961-01-19
US3411686A (en) * 1966-05-25 1968-11-19 Mohawk Data Sciences Corp Paper puller
US3804227A (en) * 1972-05-03 1974-04-16 Scm Corp Typewriter ribbon cartridge
US3854804A (en) * 1973-01-26 1974-12-17 Minnesota Mining & Mfg Film cartridge
US4011933A (en) * 1975-10-03 1977-03-15 Xerox Corporation Ribbon drive means
US4213716A (en) * 1978-05-15 1980-07-22 General Electric Company Ribbon stripping mechanism
US4252450A (en) * 1978-10-03 1981-02-24 Xerox Corporation Ribbon drive with spring-loaded idler
US4269520A (en) * 1978-12-26 1981-05-26 Precisa Ag Rechenmaschinenfabrik Cartridge for dye-impregnated endless ribbon
JPS5934514B2 (ja) * 1980-07-29 1984-08-23 富士通株式会社 インクリボンの分離機構
JPS5836161U (ja) * 1981-09-02 1983-03-09 株式会社ブリヂストン インクリボンカセツト
US4428695A (en) * 1982-05-12 1984-01-31 Qume Corporation Cartridge with self adjusting pressure roller and end of ribbon detection means
US4490059A (en) * 1983-05-04 1984-12-25 Wordex Ribbon metering device
US4568210A (en) * 1984-03-30 1986-02-04 Wang Laboratories, Inc. Reversible ribbon cartridge

Also Published As

Publication number Publication date
JPS61132373A (ja) 1986-06-19
DE3567409D1 (en) 1989-02-16
US4732500A (en) 1988-03-22
EP0184548A1 (fr) 1986-06-11
CH665802A5 (de) 1988-06-15

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