GB1130544A - Improvements in or relating to ribbon mechanisms for typewriters - Google Patents

Improvements in or relating to ribbon mechanisms for typewriters

Info

Publication number
GB1130544A
GB1130544A GB19455/68A GB1945568A GB1130544A GB 1130544 A GB1130544 A GB 1130544A GB 19455/68 A GB19455/68 A GB 19455/68A GB 1945568 A GB1945568 A GB 1945568A GB 1130544 A GB1130544 A GB 1130544A
Authority
GB
United Kingdom
Prior art keywords
lever
ribbon
cam
pawls
engages
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
GB19455/68A
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Publication of GB1130544A publication Critical patent/GB1130544A/en
Expired legal-status Critical Current

Links

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
    • B41J33/42—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
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/18—Mechanisms for rendering the print visible to the operator
    • 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
    • B41J33/518—Ribbon-feed devices or mechanisms with arrangements for reversing the feed direction automatically and characterised by the use of particular reversing control means the reversing-feeler engaging buttons or the like secured to the ribbon near its ends
    • 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
    • B41J35/00—Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
    • B41J35/20—Ink-ribbon shifts, e.g. for exposing print, for case-shift adjustment, for rendering ink ribbon inoperative

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Common Mechanisms (AREA)

Abstract

1,130,544. Typewriters. OKI ELECTRIC INDUSTRY CO. Ltd. 3 Nov., 1965 [25 Nov., 1964; 26 Dec., 1964], No. 19455/68. Divided out of 1,130,543. Heading B6F. General.-A typewriter has a detachable unitary ribbon feed mechanism comprising a pair of ribbon spools 32 (34), a feed mechanism including both automatic and manual means for reversing the direction of feed. Ink-ribbon feed mechanism.-The ink-ribbon 31, Fig. 2 (not shown), is driven, according to which spool is winding, by pawl 37, 38 actuated by cam lever 56 and a cam 54 axially slidable on a rotating shaft 7. Pawls 60, 61 are detents to prevent reverse movement of ratchets 39, 40. Ribbon-reversing automatic.-Only one pawl 37 or 38 engages the ratchets 39, 40 at one time according to the position of a lever 33 having two cam surfaces 35, 36 which move one or the other pawls 37, 38 away from the ratchet teeth. Lever 33 is pivoted to two levers 45, 53 which are controlled by forks 43, 52 pivoted by a button on each end of the ribbon. When a button moves fork 43, or 52, either lever 45 engages the upper surface or lever 53 engages the underside of a cam rocked plate 46. This either raises or lowers the lever 33 which, by means of its surfaces 35, 36, sets the pawls 37, 38. Ribbon-reversing manual.-A lever 33 can alter the lever 34 directly, see Fig. 5 (not shown).
GB19455/68A 1964-11-25 1965-11-03 Improvements in or relating to ribbon mechanisms for typewriters Expired GB1130544A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9078564 1964-11-25
JP10031364 1964-12-26

Publications (1)

Publication Number Publication Date
GB1130544A true GB1130544A (en) 1968-10-16

Family

ID=26432216

Family Applications (2)

Application Number Title Priority Date Filing Date
GB19455/68A Expired GB1130544A (en) 1964-11-25 1965-11-03 Improvements in or relating to ribbon mechanisms for typewriters
GB46569/65A Expired GB1130543A (en) 1964-11-25 1965-11-03 Improvements in or relating to typewriters

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB46569/65A Expired GB1130543A (en) 1964-11-25 1965-11-03 Improvements in or relating to typewriters

Country Status (2)

Country Link
US (1) US3532204A (en)
GB (2) GB1130544A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819028A (en) * 1970-05-28 1974-06-25 Int Teleprinter Corp Stepping mechanism for teleprinter
US3670861A (en) * 1970-09-10 1972-06-20 Extel Corp Carriage drive for high speed printer
US3793951A (en) * 1971-06-15 1974-02-26 Teletype Corp Signal responsive belt printer
DE2309071C3 (en) * 1972-02-24 1980-04-17 Canon K.K., Tokio Ribbon transport and switching device for a printer
DE2223757A1 (en) * 1972-05-16 1973-11-22 Triumph Werke Nuernberg Ag RIBBON TRANSPORT AND CHANGEOVER DEVICE
US3923139A (en) * 1972-05-25 1975-12-02 Paul Mesnil Device for acquisition, storage and echelon of characters in a printer of the series type
US3910395A (en) * 1974-03-06 1975-10-07 Ibm Apparatus for print head retraction to facilitate paper insertion
GB1504770A (en) * 1974-08-30 1978-03-22 Siemens Ag Printer ribbon drive arrangement
US3926061A (en) * 1974-10-02 1975-12-16 Hewlett Packard Co Differential drive rotating disc impact printer
US3964595A (en) * 1975-01-23 1976-06-22 Xerox Corporation Ribbon guide for a serial printer
US4036349A (en) * 1975-02-28 1977-07-19 Sweda International, Inc. Combined mechanism for impacting a print member and advancing a printing ribbon
US3995731A (en) * 1975-06-02 1976-12-07 Ncr Corporation Multi-ribbon cassette and ribbon drive
JPS5223411A (en) * 1975-08-14 1977-02-22 Alps Electric Co Ltd Printing mechanism
US4208141A (en) * 1978-09-19 1980-06-17 Xerox Corporation Serial printer with cable tensioning apparatus
US4678354A (en) * 1985-12-02 1987-07-07 Xerox Corporation Typewriter cable tensioning mechanism

Also Published As

Publication number Publication date
US3532204A (en) 1970-10-06
GB1130543A (en) 1968-10-16

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