US3583541A - Means for automatically reversing the direction of travel of an inking ribbon in a calculating machine or the like - Google Patents

Means for automatically reversing the direction of travel of an inking ribbon in a calculating machine or the like Download PDF

Info

Publication number
US3583541A
US3583541A US732806A US3583541DA US3583541A US 3583541 A US3583541 A US 3583541A US 732806 A US732806 A US 732806A US 3583541D A US3583541D A US 3583541DA US 3583541 A US3583541 A US 3583541A
Authority
US
United States
Prior art keywords
ribbon
lever
gear
sensing
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 - Lifetime
Application number
US732806A
Other languages
English (en)
Inventor
Makoto Okuda
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.)
MARZUSEN SEWING MACHINE CO Ltd
Original Assignee
MARZUSEN SEWING MACHINE 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 MARZUSEN SEWING MACHINE CO Ltd filed Critical MARZUSEN SEWING MACHINE CO Ltd
Application granted granted Critical
Publication of US3583541A publication Critical patent/US3583541A/en
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
    • 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

Definitions

  • Kraus ABSTRACT Mechanism for automatically reversing the direction of travel of an inking ribbon without tensioning the ribbon, said mechanism including a pair of gear driven ribbon spools, axially movable gear means operable to alternately drive said spools and a pair of sensing levers, each associated with a respective spool and responsive to the quantity of ribbon on a spool to effect movement of said gear means to effect reversal of the direction of rotation of the spools to reverse the direction of the ribbon travel upon depletion of the quantity of ribbon on a spool. Means are also provided to render one sensing lever ineffective when the other sensing lever is effective.
  • PATENTED JUN 8 Ian SHEET 1 [1F 4 INVENTOR. MaKoTo OK Ud PATENTED JUN 8 m7:
  • This invention relates to means for automatically effecting a reversal in the direction of travel of an inking ribbon in a calculating machine, typewriter or the like upon the exhaustion of a ribbon supply spool.
  • the mechanism operative to effect reversal of the direction of travel of an inking ribbon in a calculating machine or the like depended on the restraining action of the ribbon, at the end of an unwinding cycle, to effect a change in the operating position of a feed pawl in relation to a ratchet associated with a takeup spool.
  • Such tensioning of the ribbon sometimes resulted in tearing of the end of the ribbon from the spool or injury to the ribbon itself.
  • I provide an improved means including sensing levers adapted to sense the quantity of inking ribbon on each of the two spools to actuate mechanism to effect a reversal in the direction of travel of the ribbon, thereby avoiding tensioning of the ribbon at the end of an unwinding cycle. Means are also provided to deactivate one of the sensing levers so that only one spool is operative for winding up the ribbon at any one time.
  • FIG. 1 is a rear elevational view of the spool operating mechanism of a calculating machine embodying the present invention, with certain conventional parts eliminated for purposes of clarity.
  • FIG. 2 is a side elevational view of the mechanism illustrated in FIG. 1.
  • FIG. 3 is a perspective view of the ribbon sensing means embodied in my invention.
  • FIG. 4 is a cross-sectional view taken on line X-X of FIG. 1.
  • FIG. 5 is a perspective view of a structural detail.
  • the calculating machine includes a frame 1 in which is supported a shaft 2 carrying a plurality of freely rotatable type sectors 3.
  • a platen 4 is disposed rearwardly and above said sectors 3 and is rotatably supported between arms 5 on a shaft 6 supported on said arms.
  • the arms 5 are rockably supported on shaft 7 supported in the frame 1.
  • the arms 5 are connected by means ofa link 8 to an actuating plate 9 fixed on main shaft10.
  • rocking of shaft 10 in a counterclockwise direction, as viewed in FIG. 2 will effect rocking of the arms 5 in the direction of arrow A to engage the tape 45 wound around the platen 4 with the type elements of the type sectors 3.
  • Platen 4 is advanced in a well known manner by a pawl 33a acting against ratchet wheel 33.
  • a knob 34 permits manual rotation of the platen 4.
  • the shaft 7 is rotatably supported in the frame 1 and rotatably mounted on the respective ends of said shaft 7 are" spools 12 and 13 carryingan inking ribbon 11. These spools 12 and 13 are provided with gears 14 and I5 respectively, fixed thereto.
  • a driving gear 47 is fixed on shaft 7.adjacent the gear 15.
  • An arm 50 is pivotally supported on a pin 49 carried on the right hand arm 5, as viewed in FIG. 1, its pivotal axis being eccentric to the axis of shaft 7.
  • the arm 50 is provided at its distal end with a pin 48 which is adapted to extend across the face of gear 47 and to engage in one of the spaces between the teeth thereof, as will be hereinafter explained.
  • a torsion spring 51 engages the arm 50 and biases the same in a clockwise direction, as viewed in FIG. 5.
  • the other end of the spring 51 engages the right-hand arm 5.
  • a spring pawl 43 is suitably mounted on the frame 1 and engages against the gear 47'to prevent rotation of the same in a clockwise direction, as viewed in FIG. 4.
  • the gear 47 is caused to be rotated for a fraction of a revolution, in a counterclockwise direction, as viewed in FIG.
  • the shaft 18 is suitably supported in the arms 5 for axial and rotational movement and fixed on the ends of said shaft 18 are pinions 16 and 17.
  • the pinion 16 has a relatively narrow face and is adapted to mesh with gear 14 while the pinion 17 has a substantially wider face and is adapted to mesh with the gears 15 and47.
  • the shaft 18 is axially slideable.
  • pinion 16 may be moved into or out of engagement with gear 14 and pinion 17 may be moved into and out of engagement with gear 15.
  • the pinion I7 is always in engagement with gear 47.
  • the spool changeover mechanism includes a pair of levers l9 and 20 pivotally supported as at 22 and 23, respectively, on a bracket 21 secured to arms 5, 5, rearwardly thereof.
  • the lever 19 includes a forked portion 19a engageable in an annular groove of a collar 24 mounted on shaft 18.
  • the lever 19 also includes a laterally extending portion 19b.
  • the lever 20 is constructed allochirally to lever 19 and includes a forked portion 20a engageable in an annular groove of a collar 25 fixed on shaft 18.
  • the lower portion of the lever 20 includes a laterally extending portion 20b.
  • the means for actuating levers 19 and 20 is illustrated in FIG. 3 and includes a shaft 30 journaled in brackets 35 and 36 mounted on frame 1.
  • the lever 28 includes a sensing finger 28a bent forwardly of the plane of the body of the lever 28 and also a portion 28b bent at a right angle to the plane of the body of the lever 28.
  • the lever 28 also includes an integral depending arm 28c also bent at a right angle to the plane of the body.
  • the lever 29 is allochirally formed and includes a sensing finger 29a, a right angle portion 29b which in this instance is additionally bent to provide an offset portion and a depending arm 290.
  • the sensing fingers 28a and 290 by reason of the bias of levers 28 and 29 are urged into engagement with ribbon l1 wound on the respective spools 12 and 13, as seen in FIG. 2.
  • portion 28b of lever 28 is disposed so that under certain conditions it is adapted to engage the lower edge of lateral extension 19b of lever 19.
  • the top edge of portion 29b is adapted to engage the lower edge of lateral extension 20b of lever 20.
  • levers 19 and 20 are caused to be rocked to effect axial movement of shaft 18 and engagement or disengagement of the respective pinions l6 and I7 and gears, 14 and 15 as the case may be.
  • the portion 28b is shown as being held out of engagement with extension 19b by reason of the quantity of ribbon wound on spool 12.
  • lever 28 moves in the direction of the arrow C to the point where the forward edge of portion 28b will engage against the rearward side of extension 19b.
  • bracket 21 together with the levers l9 and 20 will move upwardly so that the portion 28b may then clear the extension 19b and position itself immediately therebelow in the path of its return movement.
  • portion 19b will engage the top edge of the extension 28b and effect rocking of the lever 19 in a direction indicated by arrow D (FIG. 1).
  • Such movement of lever 19 effects axial movement of the shaft 18 to the position illustrated in FIG. 1 wherein pinion 16 is in engagement with gear 14.
  • portion 29b will be caused to rock lever 20 in the direction of arrow E to effect movement of the shaft 18 axially to the right, as viewed in FIG. 1, wherein the pinion 17 is in engagement with gears and 47. It will be understood that in any condition of operation, one of the levers 19 or 20 always assumes a rocked position.
  • a buffer element 27 mounted on shaft 18 functions to resiliently retain shaft 18 in the position in whichit has been moved, thereby preventing inadvertent disengagement of cooperating pinions 16 and 17 and gears 14 and 15.
  • a locking lever 40 is pivoted as at 26 to the base of frame 1 rearwardly of the levers 28 and 29.
  • the ends 40a and 40b of lever 40 extend across the depending arms 28c and 29c, respectively, so that under certain conditions 14 operation, as will be hereinafter explained, the arms 28c and 290 will be caused to engage with the ends 40a and 40b, respectively, as the case may be.
  • lever 28 is now in its extreme left position and depending arm 28c is in its extreme right position and in engagement with end portion 40a oflever 40. Accordingly, lever 40 has been rocked about pin 26 so that lever 40b is engaged against arm 29c causing lever 29 to rock so that finger 29a is moved away from the ribbon on spool 13 and thus rendered ineffective.
  • lever 28 will be rocked to the right thereby moving arm 28c away from end portion 40a so that lever 40 may be rocked in an opposite direction to permit lever 29 to move towards spool 13.
  • lever 29 When spool 13 later functions as a takeup spool as hereinabove described, its associated sensing lever 29 is rendered effective and lever 28 is rendered ineffective.
  • lever 28 is in a position whereinthe sensing finger 28a is in contact with shaft 7 orhub of spool 12
  • depending arm 28c associated with the lever 28 will have assumed a position in engagement with end portion 40a of lever 40 so that said lever 40 is swung in a counterclockwise direction, as viewed in FIG. 3, which results in the opposite end 40b of lever 40 engaging against the depending arm 29c of lever 29 and rocking the same so that the sensing finger 29a is moved in a direction away from the shaft 7, which corresponds to the position assumed for a supply reel condition.
  • the reel 13 functions as a supply reel wherein its associated gear 15 is free of engagement with pinion l7 and any likelihood of jamming is completely obviated. It will be understood that either of the levers 28 or 29 may function, as above described.
  • a calculating machine or the like having a main frame, a shaft supported on said frame, a pair of spaced arms rockably supported on said shaft, and means for rocking said arms, the combination comprising a ribbon, first and second ribbon spools carried on respective ends of said shaft, first and second gears coaxially attached each to a respective spool, a driving gear disposed adjacent said first gear and coaxial therewith, means for intermittently driving said driving gear, a rotatable shaft carried by said arms in parallel relation to said first mentioned shaft and supported for axial movement, first and second pinions spacedly fixed on said rotatable shaft, said first pinion being always in meshing engagement with said driving gear, said rotatable shaft being axially movable so as to effect alternate meshing engagement of said first pinion with said first gear and said second pinion with said second gear, a bracket supported on said arms, first and second shift levers pivotally supported on said bracket and being in engagement with said rotatable shaft, said shift levers being arranged to move

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)
US732806A 1967-04-27 1968-05-27 Means for automatically reversing the direction of travel of an inking ribbon in a calculating machine or the like Expired - Lifetime US3583541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP42027399A JPS4810804B1 (lt) 1967-04-27 1967-04-27

Publications (1)

Publication Number Publication Date
US3583541A true US3583541A (en) 1971-06-08

Family

ID=12219968

Family Applications (1)

Application Number Title Priority Date Filing Date
US732806A Expired - Lifetime US3583541A (en) 1967-04-27 1968-05-27 Means for automatically reversing the direction of travel of an inking ribbon in a calculating machine or the like

Country Status (2)

Country Link
US (1) US3583541A (lt)
JP (1) JPS4810804B1 (lt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106457591A (zh) * 2014-05-20 2017-02-22 柏隆匈牙利公司-楚格分公司 玻璃面板移除

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2349483A (en) * 1939-12-06 1944-05-23 Willheim Francois Typewriting machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2349483A (en) * 1939-12-06 1944-05-23 Willheim Francois Typewriting machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106457591A (zh) * 2014-05-20 2017-02-22 柏隆匈牙利公司-楚格分公司 玻璃面板移除
US11161267B2 (en) * 2014-05-20 2021-11-02 Belron International Limited Glazing panel removal
US11872715B2 (en) 2014-05-20 2024-01-16 Belron International Limited Glazing panel removal
US12285880B2 (en) 2014-05-20 2025-04-29 Belron International Limited Glazing panel removal

Also Published As

Publication number Publication date
JPS4810804B1 (lt) 1973-04-07

Similar Documents

Publication Publication Date Title
US3346090A (en) Ribbon feed mechanism
US3583541A (en) Means for automatically reversing the direction of travel of an inking ribbon in a calculating machine or the like
US2803331A (en) Multiple ribbon copy attachment for typewriters
US2214415A (en) Typewriting machine
US3212617A (en) Paper handling equipment for adding and similar accounting machines
US2872016A (en) Ribbon winding device for typewriters and the like
US3038582A (en) Ribbon feed mechanism for business machines and the like
US3145651A (en) Carriage and ribbon mechanism for calculating machines
US3186533A (en) Carriage and ribbon mechanism for calculating machines
US3907094A (en) Ribbon feeding and reversing mechanism
US2257553A (en) Ribbon reverse mechanism
US1653362A (en) Typewriting machine
US1198505A (en) Ribbon-feeding mechanism for duplicating-machines.
US1865647A (en) Cash register
US1704020A (en) Manifolding attachment for typewriters
US2744605A (en) Ribbon feeding and reversing mechanism for printing machines
US2695698A (en) Typewriter attachment for producing a plurality of ribbon copies
US1963120A (en) Duplicating machine
US933652A (en) Ribbon mechanism for type-writing machines.
US831935A (en) Type-writing machine.
US1705946A (en) Typewriting machine
US3616994A (en) Printing device in a recording calculator or the like
US1628164A (en) Automatic ribbon-reversing mechanism for cash registers
US760676A (en) Ribbon mechanism for type-writing machines.
US2216409A (en) Transfer-sheet feed mechanism for typewriting, teleprinting, and like machines