EP0157735A2 - Dispositif d'alimentation de feuilles vers le rouleau d'une machine de bureau - Google Patents

Dispositif d'alimentation de feuilles vers le rouleau d'une machine de bureau Download PDF

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Publication number
EP0157735A2
EP0157735A2 EP85810099A EP85810099A EP0157735A2 EP 0157735 A2 EP0157735 A2 EP 0157735A2 EP 85810099 A EP85810099 A EP 85810099A EP 85810099 A EP85810099 A EP 85810099A EP 0157735 A2 EP0157735 A2 EP 0157735A2
Authority
EP
European Patent Office
Prior art keywords
roller
gear element
pawl
assigned
platen
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.)
Withdrawn
Application number
EP85810099A
Other languages
German (de)
English (en)
Other versions
EP0157735A3 (fr
Inventor
Kurt Rünzi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0157735A2 publication Critical patent/EP0157735A2/fr
Publication of EP0157735A3 publication Critical patent/EP0157735A3/fr
Withdrawn legal-status Critical Current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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section

Definitions

  • a device is known from CH-A-638 436.
  • the separating roller is driven by a gear from the platen roller.
  • the platen To feed a sheet, the platen must first be driven backwards by a certain angle, then forwards by a small amount, then backwards again, until the detected sheet enters the gap between the platen and a first pressure roller. The sheet can then be drawn in by turning the platen roller forward.
  • the process described requires a relatively complex ratchet mechanism and complex programming of the office machine.
  • the object of the invention is to eliminate these disadvantages. This object is achieved with the characterizing features of claim 1.
  • the device serves to selectively feed sheets from a first supply stack 2 or a second supply stack 3 to a writing or printing office machine 19 - for example a typewriter. These sheets are then passed around the platen roller 10 and leave it to be subsequently deposited on a depositing stack 4.
  • the two supply stacks 2, 3 each lie on a pivotable base 5, each of which is loaded by a spring 6.
  • the two storage stacks 2, 3 together with the pivotable base 5 are each held by laterally adjustable, V-shaped supports 21, 23.
  • the top sheet of each of the two supply stacks 2, 3 lies against a drivable separating roller 7, 8 in a frictional manner.
  • a corner separator 9 known per se, which has the shape of a short projecting tab at the corners and which has the effect that when the top sheet is fed this must jump out over this corner and thereby one Double feeding of sheets is avoided.
  • a funnel 11 formed by guide plates 16 is provided.
  • the separating rollers 7, 8, which are made of soft rubber at least on the casing, are each seated on a shaft 12, 14 with the interposition of one overrunning freewheel 13, in the sense that these separating rollers 7, 8 can twist when the top sheet is pulled off, without simultaneously driving the drive shafts 12, 14 positively.
  • the intermediate gear 20 engages with the gear 18 seated on the axis of the platen roller 10.
  • the assembly 15 according to FIGS. 1 and 2 can be detachably placed on the intermediate frame 30, the gear wheel 26 of the intermediate frame 30 being coupled to the drive wheel 32.
  • recesses 34 are available, which allow the relevant shaft to be gripped under.
  • the drive gear 32 drives, via a clutch 45, 80 and a toothed belt 36, a first gear 38 rotatably mounted on the shaft 14, with which a second gear 40 of the same size, rotatably mounted on the shaft 12, engages.
  • a ratchet wheel 42, 44 is rigidly connected to each of the shafts 12, 14, in which a ratchet 46, 48 can engage.
  • These pawls 46, 48 are each pivotally mounted on the gear 38, 40 and spring-loaded in the direction of the associated ratchet wheel 42, 44.
  • On the side wall 25 a deflection pawl 55, 56 is pivotally mounted, which are intended to cooperate with the pawls 46 and 48, respectively.
  • deflection pawls 55, 56 are loaded by springs so that they each abut against a stop 58, 60 fixed to the housing.
  • a ratchet wheel 50, 52 is connected to the ratchet wheels 42, 44 in a rotationally fixed manner, each of which is provided on the circumference with a recess 62, 64 into which an armature 66 engages.
  • This essentially T-shaped anchor is designed such that its upper middle part 70 can be pivoted relative to the transverse locking part 68 about a pin 73 protruding through an elongated hole 69 in the central part and can also be moved in the longitudinal direction to the central part 70 in the elongated hole is.
  • rollers 71, 72 At the ends of the central part 70 there are rollers 71, 72, which each engage in a recess 62, 64 of these locking wheels 50, 52.
  • the middle part 70 is pulled down by springs 67, so that it can optionally pivot about one of the rollers 71, 72.
  • the locking part 68 is loaded by a further spring 75 in the direction of the clutch 45, 80.
  • the lower end of the locking part 68 of this armature 66 lies against an eccentric 74 which actuates the coupling 45, 80.
  • the drive wheel 32 is connected to the belt roller 37 via a spring band coupling 80.
  • This spring band coupling 80 is of known design and contains a helical spring 82 which engages with one end 83 in the eccentric 74. In one direction of rotation it acts as a freewheel and in the other direction of rotation as a friction clutch, which non-positively connects the drive wheel 32 to the belt roller 37, as long as the eccentric 74 is not stopped by a shoulder 76 against the locking part 68.
  • an overrunning freewheel 45 which locks in the opposite direction to the spring band coupling 80.
  • the other separating roller 8 is to be driven, this is brought about by the fact that the platen roller 10 is turned back against the paper feed direction by a smaller angle of rotation.
  • the pawl 46 seated on the gear 38 also rotates.
  • the ratchet wheel 42 and with this the ratchet wheel 52 remain stationary for the time being.
  • the pawl 46 which is pressed against the center of the gear 38 by spring loading, reaches the region of the shoulder 84, this pawl 46 engages.
  • V-shaped arrangement of the two supply stacks 2, 3 makes it possible for the path to the feed gap at the platen roller 10 to be of the same length, which simplifies the control for the optional sheet feeder.
  • the unlockable spring band coupling 80 in cooperation with the armature 66 ensures that the two gear wheels 38, 40 are always in the same position at the start of a drawing-in process, regardless of the previously made angle of rotation of the platen roller 10 in the paper drawing direction V.
  • two supply stacks 2, 3 are provided.
  • the invention is also applicable to devices with a single stack of supplies.
  • the stack 2 with the associated separating roller 7, the shaft 12, the gear 40, the ratchet wheel 44, the ratchet 4.8, the deflector pawl 56 and the ratchet wheel 50 could be omitted, the central part 70 being pivotally attached to the side wall 25 at the location of the roller 72 would.
  • three storage stacks are to be provided, e.g. one stack for paper with company head, one for empty paper and another stack for envelopes to be addressed, then a further separating roller with gear, ratchet wheel and ratchet wheel can be arranged for the third supply stack, with 70 e.g. a balance beam arrangement could be provided so that the locking part 68 can be raised by all three locking wheels.
  • FIGS. 8-10 show a further exemplary embodiment with three storage stacks 3a, 3b, 3c, this device again consisting of an intermediate frame and an attachable unit.
  • the intermediate frame is designed analogously, as in the first embodiment. For the sake of clarity, only the shaft 24 and the gear 26 are shown.
  • the overrunning freewheel is designed here as a spring band coupling 45 'and locks against rotation in the opposite direction to the paper feed direction.
  • the second spring band coupling 80 is the same as in the first exemplary embodiment and locks in the paper feed direction as long as it is not unlocked by stopping the eccentric 74.
  • the three pawl carriers 38a, b, c are arranged coaxially to one another and rigidly connected to one another via a sleeve 51.
  • the pawl carrier 38a is toothed on the outside and meshes with the gear 37 '.
  • the sleeve 51 is rotatable on a bolt 49 fixed to the housing.
  • Each ratchet carrier 38a, b, c is assigned a ratchet wheel 42a, b, c, a ratchet wheel 52a, b, c rigidly connected thereto and a gearwheel 47a, b, c.
  • These gears 47a, b, c mesh with a further gear 53a, b, c.
  • the gear wheels 53a and 53b are rigidly connected to the associated shafts 14a, 14b of the separating rollers 8a, 8b, the separating rollers 8a, b in turn having overrunning freewheels 13a, b.
  • the gear 53c is an idler gear that drives another gear 54 connected to the shaft 14c.
  • the third separating roller 8c is mounted on the shaft 14c.
  • the supply stacks 3a, 3b assigned to the separating rollers 8a, 8b are arranged one above the other, while the third supply stack 3c is opposite, as shown schematically in FIG. 8.
  • the armature 66 and the side wall 25 are omitted for a better overview.
  • the three deflector pawls 55a, b and c are pivotally mounted on a common pin 57 fixed to the housing and are pressed against a common stop pin 58 fixed to the housing by a spring (not shown).
  • the three associated pawls 46a, b, c, each pivotably mounted on one of the pawl carriers 38a, b, c, are offset at an angle to one another in the basic position (FIG. 8), so that the required angle of rotation of the platen roller for latching the pawls 46a, b , c in the associated ratchet wheels 42, a, b, c for the three ratchet wheels 42a, b, c is different.
  • the pivot axes of the pawls 46a, b, c are rotated into the drawing plane for the illustration.
  • the armature 66 here consists of a longitudinally displaceably mounted locking part 68, which is loaded by a spring 75 in the direction of the eccentric 74 and to which a pin 73 is fastened.
  • Each of the locking wheels 52a, b, c is assigned a pivot lever 70a, b, c, which are mounted at one end on a common pin 77 fixed to the housing. At the other end they each carry a roller 71a, b, c which rolls on the associated ratchet wheel 52a, b, c.
  • the pivot levers 70a, b, c are loaded by springs 67a, b, c. They each have an elongated hole 69a, b, c, in which the pin 73 engages.
  • the locking part 68 is thus raised as soon as one of the three locking wheels 52a, b, c is rotated and the associated roller 71a, b, c is thus lifted out of the recess 64a, b, c
  • FIGS. 8 to 10 The operation of the device according to FIGS. 8 to 10 is analogous to that according to FIGS. 1 to 7, the forward direction of rotation A of the drive wheel 32 being reversed.
  • the shoulder 76 of the eccentric 74 lies against the locking part 68, so that the spring band coupling 80 is unlocked and the gearwheel 37 'does not rotate.
  • the device is in the basic position shown in FIG. 8. If the platen roller is now rotated backwards, the pawl 46a first reaches the position shown in FIG. 10, in which it engages in the shoulder 84a of the ratchet wheel 42a.
  • the ratchet wheel 42a and thus the gears 47a, 53a, the shaft 14a and the separating roller 8a also rotate, as in the first exemplary embodiment, so that a sheet is fed from the supply stack 3a to the platen roller.
  • the swivel arm 70a is raised by the ratchet wheel 52a and takes the locking part 68 with it. This movement is interrupted after one turn of the pawl carrier 38a when the pawl 46a hits the deflector pawl 55a.
  • the roller 71a snaps into the recess 64a, so that when the gear 32 continues to rotate, the shoulder 76 counteracts the locking part 68 runs up and the basic position is reached again.
  • the other two separating rollers 8b, 8c are driven by a correspondingly larger turning angle.
  • the third embodiment it is easily possible, depending on the customer's request, to omit the third supply stack 3c with associated separating roller 8c, shaft 14c, gearwheels 54, 53c, 47c and ratchet carrier 38c, ratchet wheel 42c, ratchet wheel 52c and swivel arm 70c, that is to say with one Basic version to produce devices with different numbers of stockpiles. This simplifies production and storage.

Landscapes

  • Sheets, Magazines, And Separation Thereof (AREA)
  • Handling Of Cut Paper (AREA)
  • Handling Of Sheets (AREA)
EP85810099A 1984-04-02 1985-03-07 Dispositif d'alimentation de feuilles vers le rouleau d'une machine de bureau Withdrawn EP0157735A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1665/84 1984-04-02
CH166584 1984-04-02

Publications (2)

Publication Number Publication Date
EP0157735A2 true EP0157735A2 (fr) 1985-10-09
EP0157735A3 EP0157735A3 (fr) 1988-09-14

Family

ID=4215759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810099A Withdrawn EP0157735A3 (fr) 1984-04-02 1985-03-07 Dispositif d'alimentation de feuilles vers le rouleau d'une machine de bureau

Country Status (5)

Country Link
US (3) US4620809A (fr)
EP (1) EP0157735A3 (fr)
JP (1) JPS60224564A (fr)
BR (1) BR8501410A (fr)
CA (1) CA1231108A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708601A1 (de) * 1986-03-18 1987-10-01 Canon Kk Papierfoerdereinrichtung fuer ein aufzeichnungsgeraet

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512419A1 (de) * 1985-04-04 1986-10-16 Helmut Steinhilber Vorrichtung zum zufuehren von einzelblaettern zur schreibwalze eines druckers
JPH0674097B2 (ja) * 1985-11-08 1994-09-21 ブラザー工業株式会社 プリンタの給紙装置
JPS62111772A (ja) * 1985-11-09 1987-05-22 Fujitsu Ltd プリンタにおける単票のセツト方法
CH673322A5 (fr) * 1985-11-19 1990-02-28 Rutishauser Data Ag
US4729683A (en) * 1986-01-24 1988-03-08 Ziyad Incorporated Paper sheet feeding apparatus
JPH0620948B2 (ja) * 1986-03-14 1994-03-23 日本電気株式会社 シ−トフイ−ダの紙送機構
US4729680A (en) * 1986-06-09 1988-03-08 Xerox Corporation Selector latch for a sheet feeder
US4848944A (en) * 1986-09-22 1989-07-18 Genicom Corporation Printer paper feed mechanism
US4929105A (en) * 1986-10-31 1990-05-29 Brother Kogyo Kabushiki Kaisha Paper feeding apparatus for printer
FR2605932B1 (fr) * 1986-11-04 1988-12-02 Cga Hbs Imprimante a tete d'impression thermique comprenant un rouleau presseur et entraineur d'un document a imprimer
JPS63162736U (fr) * 1987-04-10 1988-10-24
JPS63288837A (ja) * 1987-05-18 1988-11-25 Seiko Epson Corp 給紙装置
US5135321A (en) * 1987-05-29 1992-08-04 Hewlett-Packard Company Unified paper path printer with automatic parking feature
DE3741311A1 (de) * 1987-12-05 1989-06-15 Philips Patentverwaltung Bueromaschine mit einem papiervorratsmagazin
US5993048A (en) 1988-12-08 1999-11-30 Hallmark Cards, Incorporated Personalized greeting card system
US5561604A (en) * 1988-12-08 1996-10-01 Hallmark Cards, Incorporated Computer controlled system for vending personalized products
US5546316A (en) 1990-10-22 1996-08-13 Hallmark Cards, Incorporated Computer controlled system for vending personalized products
US5164906A (en) * 1990-11-20 1992-11-17 Pitney Bowes Inc. Submodule feeder arrangement for an inserter
US5116034A (en) * 1990-12-14 1992-05-26 Hewlett-Packard Company Envelope/sheet feed mechanism
US5069434A (en) * 1991-01-30 1991-12-03 Compaq Computer Corporation Removable dual bin envelope feed tray for an image reproduction machine
US5085421A (en) * 1991-03-04 1992-02-04 Compaq Computer Corporation Dual bin paper feed tray for an image reproduction machine such as a printer or copier
US5624196A (en) * 1991-04-16 1997-04-29 Hewlett-Packard Company Method and apparatus for paper control including kickers
US5427462A (en) * 1991-04-16 1995-06-27 Hewlett-Packard Company Method and apparatus for paper control and skew correction in a printer
JP3366670B2 (ja) * 1991-10-18 2003-01-14 セイコーエプソン株式会社 給紙装置
US5309176A (en) * 1992-08-25 1994-05-03 Sci Systems, Inc. Airline ticket printer with stepper motor for selectively engaging print head and platen
JP3197960B2 (ja) * 1992-09-30 2001-08-13 キヤノン株式会社 自動給送装置及び画像形成装置
JP2966271B2 (ja) * 1993-12-30 1999-10-25 キヤノン株式会社 自動給紙装置および記録装置
US5726898A (en) 1994-09-01 1998-03-10 American Greetings Corporation Method and apparatus for storing and selectively retrieving and delivering product data based on embedded expert judgements
US5550746A (en) 1994-12-05 1996-08-27 American Greetings Corporation Method and apparatus for storing and selectively retrieving product data by correlating customer selection criteria with optimum product designs based on embedded expert judgments
US5768142A (en) 1995-05-31 1998-06-16 American Greetings Corporation Method and apparatus for storing and selectively retrieving product data based on embedded expert suitability ratings
US5875110A (en) 1995-06-07 1999-02-23 American Greetings Corporation Method and system for vending products
JP3635003B2 (ja) * 2000-05-17 2005-03-30 理想科学工業株式会社 給紙装置及びこれを用いた印刷装置
US7178914B2 (en) * 2004-03-03 2007-02-20 Lexmark International, Inc. Media pre-feed in intermittent printer
US7748707B2 (en) * 2006-12-15 2010-07-06 Carestream Health, Inc. Feeder assembly employing vertical sheet registration

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4222557A (en) * 1978-05-16 1980-09-16 Wang Laboratories, Inc. Printer feeding and stacking
US4362409A (en) * 1979-09-11 1982-12-07 Ricoh Co., Ltd. Automatic sheet feeding system of a printing apparatus
US4416559A (en) * 1979-10-16 1983-11-22 Helmut Steinhilber Apparatus, mountable on an office machine, for feeding single sheets from a paper stack stored in a magazine
EP0103842A2 (fr) * 1982-09-17 1984-03-28 Siemens Aktiengesellschaft Dispositif d'enlèvement sélectif de feuilles individielles de deux cassettes

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DE2816442C2 (de) * 1978-04-15 1981-12-17 Helmut 7210 Rottweil Steinhilber Vorrichtung zum Zuführen von Einzelblättern von einem in einem Magazin gespeicherten Papierstapel zur Schreibwalze einer Büromaschine
DE2950707C3 (de) * 1979-03-20 1981-12-10 Helmut 7210 Rottweil Steinhilber Vorrichtung zum Zuführen von Einzelblättern von einem in einem Magazin gespeicherten Papierstapel zur Schreibwalze einer Büromaschine
DE2910849C2 (de) * 1979-03-20 1983-09-29 Helmut 7210 Rottweil Steinhilber Vorrichtung zum Zuführen von Einzelblättern zur Schreibwalze einer Büromaschine
JPS5817031A (ja) * 1981-07-21 1983-02-01 Secoh Giken Inc 複写機のカセツト装填装置
US4565462A (en) * 1982-11-20 1986-01-21 Brother Kogyo Kabushiki Kaisha Paper loading apparatus for printer including plural feed paths
US4522519A (en) * 1982-11-29 1985-06-11 Dubois R Clark Apparatus and process for drop-feeding sheets to a typing or printing machine including separable paper clamping trays
US4475731A (en) * 1982-12-17 1984-10-09 Centronics Data Computer Corp. Programmable, mechanical system for feeding cut sheet paper to a printer
US4523869A (en) * 1983-08-29 1985-06-18 Lq Corporation Sheet feeder
US4570919A (en) * 1984-05-23 1986-02-18 Qume Corporation Selector for multibin sheet feeder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222557A (en) * 1978-05-16 1980-09-16 Wang Laboratories, Inc. Printer feeding and stacking
US4362409A (en) * 1979-09-11 1982-12-07 Ricoh Co., Ltd. Automatic sheet feeding system of a printing apparatus
US4416559A (en) * 1979-10-16 1983-11-22 Helmut Steinhilber Apparatus, mountable on an office machine, for feeding single sheets from a paper stack stored in a magazine
EP0103842A2 (fr) * 1982-09-17 1984-03-28 Siemens Aktiengesellschaft Dispositif d'enlèvement sélectif de feuilles individielles de deux cassettes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708601A1 (de) * 1986-03-18 1987-10-01 Canon Kk Papierfoerdereinrichtung fuer ein aufzeichnungsgeraet
US5531531A (en) * 1986-03-18 1996-07-02 Canon Kabushiki Kaisha Paper feed device for a recording apparatus
US5846006A (en) * 1986-03-18 1998-12-08 Canon Kabushiki Kaisha Paper feed device for a recording apparatus

Also Published As

Publication number Publication date
CA1231108A (fr) 1988-01-05
EP0157735A3 (fr) 1988-09-14
JPS60224564A (ja) 1985-11-08
US4664546A (en) 1987-05-12
US4620809A (en) 1986-11-04
US4687362A (en) 1987-08-18
BR8501410A (pt) 1985-11-26

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