GB1461544A - Inking ribbon transport mechanism' - Google Patents

Inking ribbon transport mechanism'

Info

Publication number
GB1461544A
GB1461544A GB2000875A GB2000875A GB1461544A GB 1461544 A GB1461544 A GB 1461544A GB 2000875 A GB2000875 A GB 2000875A GB 2000875 A GB2000875 A GB 2000875A GB 1461544 A GB1461544 A GB 1461544A
Authority
GB
United Kingdom
Prior art keywords
ribbon
pawl
ring
wheels
spool
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
GB2000875A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to GB2000875A priority Critical patent/GB1461544A/en
Publication of GB1461544A publication Critical patent/GB1461544A/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
    • B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
    • B41J17/22—Supply arrangements for webs of impression-transfer material
    • B41J17/24—Webs supplied from reels or spools attached to the machine
    • 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

Abstract

1461544 Ink ribbon mechanisms INTERNATIONAL BUSINESS MACHINES UORP 13 May 1975 [13 July 1974] 20008/75 Heading B6F Ink ribbon mechanism includes an epicyclic planetary mechanism on each spool shaft and an automatic ribbon reversing mechanism, triggered by bars on the ribbon. Each epicyclic mechanism comprises a sun wheel formed by a plastics track 42, 42<SP>1</SP> on a shoulder 41, 41<SP>1</SP> of gear wheel 38, 39, planet wheels 43, 43<SP>1</SP> and a concentric ring 44, 441 whose teeth 56, 56<SP>1</SP> can be engaged by a pawl 55. A motor (26), Fig. 3 (not shown) drives shaft 36 in direction A whilst the engagement of gears 38, 39 rotates gear 39 in direction B. As shown pawl 55 engages teeth 56 to prevent ring 44 rotating in the opposite direction to A thus causing the planet carrier of wheels 43 to rotate in direction A and drive its associated spool. Simultaneously ring 44<SP>1</SP> is free to rotate and the planet carrier of wheels 43<SP>1</SP> is therefore not driven, but the friction forces generated provide a drag on its spool to tension the ribbon. Over-centre bias on the pawl 55 and plate 58 are provided by springs 85, 87 respectively. Interposers 65, 66 are pivoted at 67, 68 on the plate 58. With pawl 55 engaging ring 44 the ribbon moves in direction 18. As the ribbon is exhausted bar 27 will move lever 30 from position 77 to 78 so that interposer 66 is in path of projections 74, 75, one of which will abut it and move it into its other over centre position. The interposers simultaneously move the pawl 55 into its opposite position to engage ring 44<SP>1</SP> and reverse the ribbon drive.
GB2000875A 1975-05-13 1975-05-13 Inking ribbon transport mechanism' Expired GB1461544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2000875A GB1461544A (en) 1975-05-13 1975-05-13 Inking ribbon transport mechanism'

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2000875A GB1461544A (en) 1975-05-13 1975-05-13 Inking ribbon transport mechanism'

Publications (1)

Publication Number Publication Date
GB1461544A true GB1461544A (en) 1977-01-13

Family

ID=10138833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2000875A Expired GB1461544A (en) 1975-05-13 1975-05-13 Inking ribbon transport mechanism'

Country Status (1)

Country Link
GB (1) GB1461544A (en)

Similar Documents

Publication Publication Date Title
GB1386063A (en) Drive mechanism
GB1529928A (en) Three-speed transmission hub for a bicycle
GB906774A (en) Improvements in or relating to ribbon feed mechanism
US4461588A (en) Serial printing mechanism
GB1461544A (en) Inking ribbon transport mechanism&#39;
GB1090410A (en) Epicyclic change speed gear hubs
JPS55128486A (en) Mechanism for feeding ink ribbon
GB1467345A (en) Winch for sailing ships
GB1153530A (en) Printing Device for &#34;On the Fly&#34; Printing
GB1089025A (en) Improvements in or relating to epicyclic gear trains
GB1512301A (en) Copier exposure carriage drive system
GB1122640A (en) Printing machines employing variable line-spacing means
GB1218505A (en) Printing device for serially printing numerical or alphanumerical characters
GB793920A (en) Improvements in or relating to freewheel coupling mechanisms
US3664471A (en) Selective drive mechanisms
GB987793A (en) Improvements in or relating to change-speed hubs
GB998249A (en) Transmission devices for coupling a driven shaft to a driving shaft
US3505889A (en) Drive means for recorder
GB1481428A (en) Printing device
GB1073826A (en) Improvements in or relating to change-speed gear hubs for bicycles
GB999654A (en) Improvements in or relating to multi-speed transmission hubs
GB1064190A (en) Device for transporting film in cameras
GB1432152A (en) Tape recorders
FR2277678A1 (en) Direction reversing unit for typewriter ribbon carrier - has planetary gearing for each transport shaft to increase speed of reversal
GB1479484A (en) Typewriters or similar machines

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee