US3602353A - Ribbon transporting and reversing mechanism - Google Patents

Ribbon transporting and reversing mechanism Download PDF

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Publication number
US3602353A
US3602353A US829381A US3602353DA US3602353A US 3602353 A US3602353 A US 3602353A US 829381 A US829381 A US 829381A US 3602353D A US3602353D A US 3602353DA US 3602353 A US3602353 A US 3602353A
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US
United States
Prior art keywords
ribbon
unit
sensing
shifting
control means
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
US829381A
Other languages
English (en)
Inventor
Kurt Chvatlinsky
Wilfred Penning
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 Werke AG
Original Assignee
Olympia Werke 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 Olympia Werke AG filed Critical Olympia Werke AG
Application granted granted Critical
Publication of US3602353A publication Critical patent/US3602353A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B41J33/44—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically
    • B41J33/46—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by its application to mechanism in which two spools are driven by pawl-and-rachet mechanism
    • B41J33/48—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by its application to mechanism in which two spools are driven by pawl-and-rachet mechanism comprising two pawls and ratchets, one for each spool
    • 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
    • B41J33/44—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically
    • B41J33/51—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by the use of particular reversing control means
    • B41J33/512—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by the use of particular reversing control means using a pivoted reversing-feeler engaging the external periphery of the wound ribbon
    • 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
    • B41J33/44—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically
    • B41J33/51—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by the use of particular reversing control means
    • B41J33/516—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by the use of particular reversing control means using a reversing-feeler responsive to the tension of the ribbon

Definitions

  • Another object of the invention is to provide a ribbon transporting and reversing mechanism comprising two flat units which can be easily built into a flat typewriter.
  • the sensing means and the control means of each unit are levers pivotally mounted for turning movement about axes which are located on opposite sides of the axis about which the ribbon spool turns.
  • the sensing lever extends transversely to the control lever and has a free end engaging the control lever in the blocking position.
  • a portion of the sensing lever between its free end and its pivotal support engages the coil formed by the ribbon in the respective ribbon spool and senses the diameter of the same, moving to the blocking position when the coil is exhausted and the end of the ribbon, which is secured to the ribbon spool, is tensioned by the turning ribbon spool of the other unit.
  • the sensing lever and the control lever are located substantially in the same place which is the plane in which the ribbon and ribbon coil is located.
  • each ribbon spool is driven by a drive means which includes a ratchet wheel to which the ribbon spool is secured, and ratchet pawl means which include a shifting pawl and a holding pawl connected by a common spring which urges both pawls into engagement with the teeth of the ratchet wheel, the spring, pawls, and ratchet wheel being located in a common plane.
  • a drive means which includes a ratchet wheel to which the ribbon spool is secured, and ratchet pawl means which include a shifting pawl and a holding pawl connected by a common spring which urges both pawls into engagement with the teeth of the ratchet wheel, the spring, pawls, and ratchet wheel being located in a common plane.
  • FIG. 2 is a side elevation of one of the units of the mechanism illustrated in FIG. 1.
  • Shifting lever 7 has a cam portion engaging shifting pawl 4 and holding pawl 13 in the unwinding condition of the left unit, and preventing engagement of ratchet wheel 5 by pawls 4 and 13 which are urged by a common-connecting spring 26 toward cam portion 25 and ratchet wheel 5.
  • shifting lever 7 When shifting lever 7 is shifted to its other position in which stud 14 engages the other recess 18a arresting spring 18, shifting lever 7 assumes a position in which its cam portion 25 does not hold the shifting pawl 4 and the holding pawl 13 in inoperative position, but permits cooperation of the pawls 4, 13, with the ratchet wheel 5, as shown for pawls 4', 13, and ratchet wheel 5' of the right unit A which is in the wind up condition.
  • control lever 20 Since control lever 20 is not blocked due to the fact that the larger diameter of the wound up coil 34a has placed sensing lever 27 in an inoperative position in which its free end portion 31 is spaced from the stop portion 32 of control lever 20, the tensioned ribbon 34, acting on the guide portion 33', turns control lever 20' in counterclockwise direction until the end portion 20a of control lever 20 engages the arm 19 of shifting lever 7' and turns the same to its other position, which motion is transmitted by connecting rod 15 to shifting lever 7 which is also angularly displaced and arrested in the new position by arresting means 14, 18. Due to the angular displacement of shifting lever 7, cam portion 25 of the same is now in a position corresponding to the position of cam portion 25 in FIG.
  • each unit comprises a support, and a spool for winding up the ribbon and mounted on said support for turning movement about a first axis; wherein said control means is mounted on said support for turning movement about a second axis; wherein said sensing means is mounted on said support for turning movement about a third axis, and wherein said second and third axes are located on opposite sides of said first axis 4.
  • a mechanism as claimed in claim 5 wherein said ribbon spool of each unit is mounted for rotation about a first axis; wherein said control means of each unit is mounted on said support for turning movement about a second axis; wherein said sensing means of each unit is mounted on said support for turning movement about a third axis; and wherein said second and third axes are located on opposite sides of said first axis in each unit.
  • control means ribbon spool, and sensing means are substantially located in the same plane in which said ribbon is located; and wherein the distance from said third axis to said control means and to the portion of said sensing means engaging said control means for blocking said control means is substantially twice the distance from said third axis to said first axis and thereby to the portion of the ribbon coil sensed by said sensing means.
  • said drive means of each unit include a ratchet wheel connected with said ribbon spool for turning movement, and biassed pawl means including a shifting pawl cooperating with said ratchet wheel; wherein said actuating means include a reciprocating actuating member in each unit carrying and reciprocating said shifting pawl so that said ratchet wheel and said ribbon spool of said one unit are stepwise turned for winding up the ribbon in one direction only; and wherein said shifting means of each unit has a cam portion cooperating with said pawl means for holding the pawl means of said other unit spaced from said ratchet wheel so that the ribbon can be freely unwound from said ribbon spool of said other unit.

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  • Impression-Transfer Materials And Handling Thereof (AREA)
US829381A 1968-06-06 1969-06-02 Ribbon transporting and reversing mechanism Expired - Lifetime US3602353A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681761553 DE1761553B1 (de) 1968-06-06 1968-06-06 Selbsttaetige Umschalteinrichtung fuer die Laengsbewegung des Farbbandes von Schreib-und aehnlichen Bueromaschinen

Publications (1)

Publication Number Publication Date
US3602353A true US3602353A (en) 1971-08-31

Family

ID=5696604

Family Applications (1)

Application Number Title Priority Date Filing Date
US829381A Expired - Lifetime US3602353A (en) 1968-06-06 1969-06-02 Ribbon transporting and reversing mechanism

Country Status (5)

Country Link
US (1) US3602353A (https=)
JP (1) JPS497447B1 (https=)
DE (1) DE1761553B1 (https=)
GB (1) GB1251283A (https=)
NL (1) NL141819B (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3907094A (en) * 1972-05-16 1975-09-23 Triumph Werke Nuernberg Ag Ribbon feeding and reversing mechanism
US4019618A (en) * 1976-04-08 1977-04-26 Addmaster Corporation Reversible ribbon drive mechanism

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US796024A (en) * 1904-06-23 1905-08-01 Charles Wales Inking mechanism for adding-machines.
US1065531A (en) * 1909-11-17 1913-06-24 Harvey A Moyer Ribbon mechanism for type-writing machines.
US1215105A (en) * 1913-12-11 1917-02-06 Remington Typewriter Co Type-writing machine.
US2335679A (en) * 1940-06-12 1943-11-30 American Machinery Corp Ribbon mechanism for stamping machines
US2592706A (en) * 1947-06-30 1952-04-15 Eva Dronghsia Odierna Julius Type ribbon feed device for race totalizator ticket issuers
US2859952A (en) * 1951-09-08 1958-11-11 Armco Steel Corp Mining of taconite ores using high frequency magnetic energy
US3174611A (en) * 1962-10-17 1965-03-23 Royal Mcbee Corp Ribbon handling mechanism
US3513957A (en) * 1966-09-20 1970-05-26 Olivetti & Co Spa Ink ribbon cartridge for a typewriter,teleprinter or similar office machines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE705097C (de) * 1939-08-09 1941-04-17 Wanderer Werke Ag Vorrichtung zum selbsttaetigen Umsteuern der Laengsbewegung von Farbbaendern in Geschaeftsmaschinen
DE1212115B (de) * 1958-11-07 1966-03-10 Grundig Max Vorrichtung zum selbsttaetigen Umschalten des Klinkenantriebes fuer die Laengsbewegung des Farbbandes an schreibenden Bueromaschinen, insbesondere Schreibmaschinen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US796024A (en) * 1904-06-23 1905-08-01 Charles Wales Inking mechanism for adding-machines.
US1065531A (en) * 1909-11-17 1913-06-24 Harvey A Moyer Ribbon mechanism for type-writing machines.
US1215105A (en) * 1913-12-11 1917-02-06 Remington Typewriter Co Type-writing machine.
US2335679A (en) * 1940-06-12 1943-11-30 American Machinery Corp Ribbon mechanism for stamping machines
US2592706A (en) * 1947-06-30 1952-04-15 Eva Dronghsia Odierna Julius Type ribbon feed device for race totalizator ticket issuers
US2859952A (en) * 1951-09-08 1958-11-11 Armco Steel Corp Mining of taconite ores using high frequency magnetic energy
US3174611A (en) * 1962-10-17 1965-03-23 Royal Mcbee Corp Ribbon handling mechanism
US3513957A (en) * 1966-09-20 1970-05-26 Olivetti & Co Spa Ink ribbon cartridge for a typewriter,teleprinter or similar office machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3907094A (en) * 1972-05-16 1975-09-23 Triumph Werke Nuernberg Ag Ribbon feeding and reversing mechanism
US4019618A (en) * 1976-04-08 1977-04-26 Addmaster Corporation Reversible ribbon drive mechanism

Also Published As

Publication number Publication date
GB1251283A (https=) 1971-10-27
JPS497447B1 (https=) 1974-02-20
NL141819B (nl) 1974-04-16
NL6907867A (https=) 1969-12-09
DE1761553B1 (de) 1971-08-12

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