US3782666A - Re-winding device for the paper for teleprinter machines and printing machines in general - Google Patents

Re-winding device for the paper for teleprinter machines and printing machines in general Download PDF

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Publication number
US3782666A
US3782666A US00159273A US3782666DA US3782666A US 3782666 A US3782666 A US 3782666A US 00159273 A US00159273 A US 00159273A US 3782666D A US3782666D A US 3782666DA US 3782666 A US3782666 A US 3782666A
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US
United States
Prior art keywords
lever
strip
roller
winding device
oscillating
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Expired - Lifetime
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US00159273A
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English (en)
Inventor
B Sandrone
A Toniolo
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Olivetti SpA
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Olivetti SpA
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/06—Tape or page guiding or feeding devices
    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/16—Means for tensioning or winding the web

Definitions

  • ABSTRACT A device for rewinding the paper strip on a teleprinter machine is disclosed, including a motor driven rewinding roller and motor control means sensitive to the length of a portion of the paper strip comprised between the rewinding roller and the teletypes printing roller to intermittently rotate the rewinding roller and so wind up the paper.
  • the changing length of the paper strip portion causes oscillation of a lever coupled to a switch which turns the motor on or off depending on the length of the strip portion.
  • Means are also provided to monitor the diameter of the feed strip roll.
  • the present invention related to a device which allows the strip of paper printed by a teleprinter or another machine to be re-wound as the strip emerges from the carriage of the machine, forming a roll which can be extracted at any desired moment with ease and rapidity from the device.
  • the strip of paper printed by a tele printer or other printing machines which is usually allowed to emerge freely from the carriage of the teleprinter machine during the operation thereof, gathers on some support surface in the proximity of the carriage or is torn off when its length becomes excessive.
  • the object of the present invention is to provide a rewinding device which allows the aforesaid disadvantages to be eliminated.
  • a re-winding device for the strip of paper emerging from a teleprinter machine or other printing machine, wherein the strip is re-wound on to a re-winding roller driven by an electric motor revolving in intermittent manner and the rotation of which is controlled by con trol means sensitive to the length of strip comprised between the roller and the point of emergence from the machine.
  • FIG. 1 is a perspective view, partially sectioned of a re-winding device embodying the present invention, mounted on a teleprinter machine of which some parts of the carriage are visible;
  • FIG. 2 shows, diagrammatically, a side view of the main parts of the device of FIG. 1;
  • FIG. 3 shows, diagrammatically, the relative position in which some parts of the device of FIG. 2 are arranged, in a first operating position of the device;
  • FIG. 4 shows, diagrammatically, the relative position in which some parts of the device of FIG. 2 are arranged, in a second operating position of the device;
  • FIG. 5 is a partial perspective view of a part of the means which drive the opening and the closure of two microswitches with which the device is provided;
  • FIG. 6 is an exploded perspective view of the driving means for rotating the roller on which the strip of paper is re-wound;
  • FIG. 7 shows a longitudinal section of a clutch with which the means of the previous Figure are provided.
  • FIG. 8 is a perspective view of a gear of the driving means showing the teeth of the clutch.
  • the re-winding device 1 is mounted on a teleprinter machine of which the carriage 2 is visible with its platen 3 with which character-bearing wheels, not shown, co-operate.
  • the device comprises a pair of fixed lateral walls 4 and 5, connected one to another by cross-pieces which are not shown, a. feed roller 6,. on which there is mounted a paper strip roll 7 and a re-winding roller 8 on which, during the operation of the device, a paper strip roll 9 gathers.
  • the roller 6 is mounted for rotation on the side walls 4 and 5 and can be inserted in the device and removed from the same with ease and rapidity, in the manner which will be described, whilst the roller 8 rotates in a swinging frame 10 comprising a pair of flange plates 11 and 12, connected one to another by an upper wall 13 and hinged, by means of pins 14, to the side walls 4 and 5.
  • a moving bar 19 in the front part of the device of FIG. 1, has its ends fixed to a pair of levers 20 and 21, each of which is hinged to one of the. plates 11 and 12 by means of pins, on which only the pin 22 of the lever 20 is visible in FIG. I.
  • a cam 23 is fixed near the end wall of the lever 20 (FIGS. 1 and 2) and this lever is normally held in the position shown in FIG. 2 under the action of a helical spring 24 which tends to cause it to rotate in an anticlockwise direction, its ends being fixed to an arm 25 of the lever and to a point of the plate 11.
  • the lower end 26 of the cam 23 rests on a tongue 30 (FIG. 1) of a lever 31 hinged, by means of a pin 32 (FIG. 2), to the side wall 4 and arranged to cooperate with a control button 33 of a microswitch.34 (FIG. 1) fixed to the side wall 4.
  • the cam 23 (FIG. 2) has a curved profile 35, an upper recess 36 and a curved slot 37 with which there co-operates a pin 38 of a lever 39, hinged by a pin 40 to the side plate 11.
  • the lever .39 is provided with an arm 41 having an operating tongue 42 and with a lower finger 47 (FIGS. 1, 2 and 5) provided with a pin 48 to which there is fixed the end of a helical spring 49 whose other end is fixed to another pin 50 of a lever 51 which can oscillate about a pin 52 fixed to the plate 11.
  • a tongue 53 (FIG. 5) of the lever 51 is arranged to co-operate with a control button 54 of a second microswitch 55 arranged at the side of the microswitch 34 and also fixed to the side wall 4 (FIG.
  • a lever 64 having a substantially T" shape and provided, in the lower part, with a notch 65 (FIG. 2) arranged to cooperate with a corresponding projecting pin 66 fixed to one of the side walls 4 and 5; a helical spring 67 (FIG. 2), fixed to each lever 64 and to the corresponding plate 11 or 12, normally keeps the bottom of the notch 65 against its pin 66.
  • a helical spring 67 (FIG. 2), fixed to each lever 64 and to the corresponding plate 11 or 12, normally keeps the bottom of the notch 65 against its pin 66.
  • two tongues 68 and 69 which serve for the operation of the lever.
  • the plates 11 and 12 are provided with recesses 70 arranged to accommodate the end pins 72 of the winding roller 8.
  • An arm 71 of each lever 20 comes to rest on the corresponding end pin 72, when the lever is in the position of FIG. 2.
  • One of the end pins of the roller 6 is housed in a hole (not shown), in the side wall whilst the other one, indicated by 73 (FIG. 1 and 2), rests on the bottom of a slot 74 formed in the side wall 4.
  • a latch 75 hinged with a pin 76 to the wall 4, has a finger 77 (FIG. 2) normally held against the pin 73 by a helical spring 78, whose ends are fixed to a pin of the wall 4 and to another finger 79 of the latch. In the position of FIG. 2 the spring therefore thrusts the latch 75 in the anticlockwise direction.
  • a third finger 80 of the latch 75 is capable of stopping against a pin 180 of the plate 11 when the latch 75 is rotated in the clockwise direction into the position shown in broken lines in FIGS. 2. In this position the spring 78 passes over the pin 76 and thus urges the latch 75 in the clockwise direction.
  • a feeler arm 82 Fixed to a bar 81 (FIGS. 1 and 2), revolving between the side walls 4 and 5, is a feeler arm 82, whose end carries a small wheel 83 arranged to co-operate with the roll of paper 7, and a second arm 84 whose end rests on the lever 31 which effects the opening and the closure of the microswitch 34.
  • the winding roller 8 is caused to rotate by an electric motor 85 (FIGS. 1 and 6) arranged on the side wall 5 of the device and connected to the roller by means of a transmission comprising three pairs of toothed wheels 86, 87 and 88 and a clutch 89.
  • the toothed wheel 90 is integral with a cylinder body 93, movable axially within a sleeve 94, fixed, for example by means of screws, to the side wall 5 of the device.
  • a helical spring 95 arranged inside the sleeve normally urges the body 93 to rest against the projections 92.
  • the body 93 (FIG. 7 is rotatable on a stem 96 integral with an end disc 97 and is held on the stem by a circlip 98.
  • the end disc 97 (FIG. 6) is provided with a small handle 99 having a tongue 100 and with an axial tooth 101 arranged to co-operate, alternately, inside one of two axial cavities 102 and 103 formed in the sleeve 94.
  • the axial langth of the cavity 102 is greater than that of the other one end, when the tooth 101 is in the cavity 102, the tongue 100 of the handle 99 is arranged underneath the tongue 68 of the lever 64, as is indicated by a broken line in FIG. 6.
  • the roller 8 comprises a casing 105 of substantially cylindrical shape which has a longitudinal slot 106 and a pair of end discs 107 and 108 spanned by a bar 109 whole ends project as the pin 72 and a corresponding pin at the other end.
  • the discs 107 and 108 have cylindrical plugs 110 jammed inside the casing 105.
  • the disc 107 has a tooth 11 1 which fits into the slot 106 in order to constitute a key.
  • a cover 112 (FIG. 2), hinged at 113, is arranged to close the device.
  • the cover can be provided with a lock.
  • feed roller 6 (FIG. 1), on which there has been inserted a roll of paper 7, is mounted on the device by inserting one of its end pins inside the corresponding hole in the side wall 5 of the device, whilst the other end pin 73 is introduced into the slit 74 of the wall 4. This pin engages the arm 79 of the latch which is thus snapped into the full-line position of FIG. 2. If on the latch should be already in this position, it can first be moved manually into the position shown in broken lines.
  • the strip of paper 15 which unwinds from the roll 7 is fed over the guide plate 16 and then under the platen 3 and between this and the character-bearing wheels (not shown) of the carriage 2 (FIG. 1). Then the emergent strip 15 is fed upwards again and over cross-pieces 114 with which the carriage is provided.
  • the motor (FIG. 6) can drive, through the pairs of toothed wheels 86, 87, 88 the roller 8, bringing about the winding of the strip 15 on to the roller.
  • the length of the loop (FIG. 1) is reduced, the lever 20 rises until it moves into the position of FIG. 4, in which the manual operation of the tongue 42 of the lever 39 can cease since the pin 38 of the lever 39 now rides on to the upper tract of the profile 35 of the cam 23, which keeps the lever 39 rotated into the position shown in FIG. 4, in which the microswitch 55 is closed and the electric motor rotates.
  • the switch 34 can provide a signal which indicates that the strip 15 at hswll of P p is es p e y K 39i
  • the clutch 89 FIG. 6
  • the handle 99 which when the clutch is closed finds itself in the position shown in broken lines, is rotated in the anti-clockwise direction, moving the tooth 101 from the cavity 102 into the cavity 103.
  • a re-winding device for a st'rip of paper for teleprinters and printing machines in general including a printing roller over which the paper strip passes for writing thereon, a re-winding roller for rewinding the printed strip, an electric motor drivingly coupled to said rewinding roller, a feeding circuit coupled to said motor and operable to supply drive current thereto, a switch for operating said feeding circuit, and a bar around which the strip forms a loop, wherein the improvement comprises a first lever connected to said bar and oscillating between a pair of positions, a first posi tion of said pair indicating a predetermined minimum length of said loop, a second position indicating a predetermined maximum length of said loop, a cam fixed to said first lever for driving the rotation of a second oscillating lever, one end of said second oscillating lever being connected elastically to one end of an oscillating keeper to operate an actuating button of said switch when said first lever reaches said second position.
  • a re-winding device in accordance with claim 1 including a circuit for generating a predetermined strip-break indicating signal, said] circuit including a second switch cooperating with said first oscillating lever for generating said signal, said first lever assuming a third position different from said first and second positions wherein said strip loop is of maximum length when said strip loop breaks;
  • a re-winding device as claimed in claim 2 including a feed strip roller carrying said paper strip in a roll in said machine, and means sensitive to the diameter of said feed paper strip roll and cooperating with the actuating button of said second switch for actuating said switch when the diameter of said feed strip roll reaches a predetermined value.
  • a rewinding device in accordance with claim 4 wherein the means sensitive to the diameter of the strip roll comprise a third oscillating lever, one whose ends cooperate with the outer surface of said feed strip roll and the other end rests on said element cooperating with the actuating button of the second switch.
  • a re-winding device as claimed in claim 1 comprising a fixed frame integral with the machine and on which there is mounted revolvingly the roller which supports the said feed strip roll, and an oscillating frame hinged to the fixed frame and comprising substantially an upper wall and two lateral flanks said rewinding roller being revolvingly mounted on said oscillating frame.
  • a rewinding device for a strip of paper for teleprinters and printing machines in general including a platen roller over which the paper strip passes for writing thereon, said platen roller being rotatable for line spacing said paper strip, a rewinding roller for rewinding the printed paper strip, an electric motor drivingly coupled to said rewinding roller, a switch operable for supplying electric power to said motor, a bar around which the strip forms a loop and reciprocably movable between a pair of positions, a first position of said pair corresponding to a predetermined minimum length of said loop, a second position corresponding to a predetermined maximum length of said loop, a member connected to said bar for concomitant movement, an element shiftable from a home position to an operating position to operate said switch, and intermediate means connecting said member and said element for suddenly shifting said element from said home position to said operating position when said member reaches said second position and from said operating position to said home position when said member reaches said first position.
  • a re-winding device wherein said member is formed of a first lever and said element is formed of a second lever fulcrumed on a stationary pivot, said intermediate means including a tension spring connected between two ends of said levers, the rotational force of said spring on said second lever being reversed when said first lever reaches a predetermined position intermediate between said home position and said operating position for suddenly moving said second lever.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
  • Unwinding Webs (AREA)
  • Winding Of Webs (AREA)
US00159273A 1970-07-03 1971-07-02 Re-winding device for the paper for teleprinter machines and printing machines in general Expired - Lifetime US3782666A (en)

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Application Number Priority Date Filing Date Title
IT6930070 1970-07-03

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US3782666A true US3782666A (en) 1974-01-01

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US (1) US3782666A (de)
DE (1) DE2133035A1 (de)
FR (1) FR2100203A5 (de)
GB (1) GB1351226A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061287A (en) * 1975-09-03 1977-12-06 Keith James Shakespeare Paper-winding units
US4346854A (en) * 1980-10-24 1982-08-31 Extel Corporation Printer paper take-up and storage device
EP0075142A2 (de) * 1981-09-14 1983-03-30 International Business Machines Corporation Transportvorrichtung für einen doppellagigen Journalstreifen
US4994851A (en) * 1989-03-07 1991-02-19 Sharp Kabushiki Kaisha Photosensitive sheet rewind device for image forming apparatus
US5794870A (en) * 1996-12-23 1998-08-18 North Central Plastics Bag re-rolling apparatus
US20040193146A1 (en) * 2001-02-15 2004-09-30 Endo Via Medical, Inc. Robotically controlled surgical instruments

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3318243A1 (de) * 1983-05-19 1984-11-22 Camille Bauer Meßinstrumente AG, Wohlen, Aargau Verfahren und vorrichtung zum schreibstreifentransport bei registriergeraeten
DE3402067C2 (de) * 1984-01-21 1986-05-22 Siemens AG, 1000 Berlin und 8000 München Direkt schreibender Papierschreiber
US4875634A (en) * 1988-07-25 1989-10-24 Theodore Lapadakis Paper tape roll control unit
DE4339783A1 (de) * 1993-11-18 1995-06-01 Mannesmann Ag Antriebsanordnung für einen Prozeßschreiber

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1378887A (en) * 1918-05-20 1921-05-24 Jr Thomas Pugh Martin Paper-feed alarm for adding-machines
US1837237A (en) * 1928-09-27 1931-12-22 Bell Telephone Labor Inc Telegraph apparatus
US1955798A (en) * 1929-03-07 1934-04-24 Addressograph Co Printing machine
US2568431A (en) * 1949-04-19 1951-09-18 Congdon Ernest Winding device
US3051405A (en) * 1959-02-12 1962-08-28 Soundscriber Corp Tape reversal mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1378887A (en) * 1918-05-20 1921-05-24 Jr Thomas Pugh Martin Paper-feed alarm for adding-machines
US1837237A (en) * 1928-09-27 1931-12-22 Bell Telephone Labor Inc Telegraph apparatus
US1955798A (en) * 1929-03-07 1934-04-24 Addressograph Co Printing machine
US2568431A (en) * 1949-04-19 1951-09-18 Congdon Ernest Winding device
US3051405A (en) * 1959-02-12 1962-08-28 Soundscriber Corp Tape reversal mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061287A (en) * 1975-09-03 1977-12-06 Keith James Shakespeare Paper-winding units
US4346854A (en) * 1980-10-24 1982-08-31 Extel Corporation Printer paper take-up and storage device
EP0075142A2 (de) * 1981-09-14 1983-03-30 International Business Machines Corporation Transportvorrichtung für einen doppellagigen Journalstreifen
EP0075142A3 (en) * 1981-09-14 1984-11-28 International Business Machines Corporation Double journal roll feed
US4994851A (en) * 1989-03-07 1991-02-19 Sharp Kabushiki Kaisha Photosensitive sheet rewind device for image forming apparatus
US5794870A (en) * 1996-12-23 1998-08-18 North Central Plastics Bag re-rolling apparatus
US20040193146A1 (en) * 2001-02-15 2004-09-30 Endo Via Medical, Inc. Robotically controlled surgical instruments
US7699835B2 (en) 2001-02-15 2010-04-20 Hansen Medical, Inc. Robotically controlled surgical instruments

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DE2133035A1 (de) 1972-01-05
GB1351226A (en) 1974-04-24
FR2100203A5 (de) 1972-03-17

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