EP0111702A2 - Dispositifs d'introduction de papier avec un arbre de transport du papier basculant - Google Patents

Dispositifs d'introduction de papier avec un arbre de transport du papier basculant Download PDF

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Publication number
EP0111702A2
EP0111702A2 EP83110924A EP83110924A EP0111702A2 EP 0111702 A2 EP0111702 A2 EP 0111702A2 EP 83110924 A EP83110924 A EP 83110924A EP 83110924 A EP83110924 A EP 83110924A EP 0111702 A2 EP0111702 A2 EP 0111702A2
Authority
EP
European Patent Office
Prior art keywords
paper
spring wire
lever
transport shaft
feed device
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.)
Granted
Application number
EP83110924A
Other languages
German (de)
English (en)
Other versions
EP0111702A3 (en
EP0111702B1 (fr
Inventor
Rudolf Rekewitz
Hermann Ing. Grad. Wambach
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0111702A2 publication Critical patent/EP0111702A2/fr
Publication of EP0111702A3 publication Critical patent/EP0111702A3/de
Application granted granted Critical
Publication of EP0111702B1 publication Critical patent/EP0111702B1/fr
Expired 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
    • B41J13/02—Rollers
    • B41J13/036—Rollers co-operating with a roller platen

Definitions

  • the invention relates to a paper feed device according to the preamble of patent claim 1.
  • DE-PS 30 14 340 describes a device for pressing and lifting a paper transport shaft from a typewriter of a typewriter, in which the paper transport shaft mounted on one side can be pivoted away from the typewriter for the purpose of transporting perforated paper by means of a latching device.
  • the transport shaft with the transport roller arranged on it is in contact with the paper roller.
  • such a device now has the disadvantage that it makes it possible to pivot the paper transport shaft in and out as such, but not to change the pressing force of the paper pressure roller mounted on the paper transport shaft depending on the type of paper used.
  • the pressure force of the paper roll must be increased the paper roller can be adapted to the different recording media to ensure safe and trouble-free operation of the printing device.
  • the object of the invention is to design a paper feed device of the type mentioned in such a way that when using different recording media, such as continuous paper, continuous paper with carbon copies, a simple change in position or adjustment of the pressure force of the paper transport shaft is possible.
  • the device should be designed to be fault-prone and simple.
  • the paper feed device can be adapted particularly easily to different recording media. Due to the movable mounting of the spring wire lever on the paper transport shaft, the pressure of the paper pressure rollers on the paper roller is evened out. The paper pressure rollers can align themselves.
  • a bearing piece can be arranged according to a preferred embodiment of the invention between the paper transport shaft and the spring wire bracket, which has a guide recess receiving the end of the spring wire bracket for the movable tip bearing of the bearing piece has on the spring wire bracket.
  • the spring wire arch itself can have a / sliding head made of abrasion-resistant material, or in the guide recess of the bearing piece there is a steel ball on which the end of the spring wire sits.
  • a loop-shaped curvature of the spring wire clip in the area of the bearing piece also reduces the surface pressure and thus the wear.
  • the embodiment of the paper feed device shown in FIG. 1 with a plurality of paper pressure rollers contains a paper roller 1 with an associated paper feed channel 2 and paper pressure rollers 3 arranged below the paper feed channel and supported on a shaft 4.
  • Four paper pressure rollers are mounted on the shaft 4, but only two are shown in the figure.
  • the shaft 4 itself is guided on a bearing piece 5, which is mounted in the manner of a tip bearing via a guide recess 6 on an arm of a spring wire bracket 7.
  • the tip storage on the end of the spring wire bracket 7 has the task of ensuring an equalization of the pressure of the four paper pressure rollers 3 on the paper roll 1.
  • the spring wire lever 7 is in turn guided in guides 8 of a frame of the printing device, not shown here.
  • a rotatably mounted swivel lever 9 consisting of a handle 10 and an extension 11 arranged opposite the handle rests on an arm 12 of the spring wire lever.
  • the arm 12 can be curved like a backdrop so that by rotating the pivot lever 9 the extension 11 deflects the arm 12 and thus the spring wire bracket 7 to different extents.
  • the paper pressure rollers 3 abut against the paper roller 1, their pressure on the paper roller thus changes by turning the pivot lever 9, the spring wire lever being loaded with its spring wire body for torsion. If the pivot lever 9 is brought into the position shown in dashed lines, the spring wire lever 7 is relieved and the paper pressure rollers 3 are thus pivoted away from the paper roller 1.
  • Such a pivoting of the paper pressure rollers 3 and thus a release of the paper feed channel 2 is necessary if, for example, the paper, not shown here, is to be aligned on the paper roll 1.
  • a steel ball 14 can be arranged between the end 13 of the spring wire lever and the actual plastic bearing piece 5. It prevents the spring wire clip 13 from penetrating into the soft plastic and serves as the actual bearing element.
  • the end 13 of the spring wire bracket can be hemispherical (reference number 16) as shown in FIG. 6.
  • This hemispherical configuration of the end 13 of the spring wire clip can also be achieved by fitting an abrasion-resistant hemispherical guide sleeve 17 (FIG. 7).
  • the guide sleeve 17 increases the contact surface of the LaT ger Federationes 5 on the spring wire lever 7, which in turn reduces the surface pressure.
  • a paper transport shaft 18 is used in a printing device for continuous paper, which is only shown here in part, which is fixed at one end and radially movable at its other end, and which has only a single barrel-shaped paper pressure roller 19, it can the axially movable end of the paper transport shaft 18, which is not shown here in connection via a gear with the motor-driven paper roller 1, can be mounted directly on the loop-shaped arm 20 of the frame-supported spring wire lever 7.
  • the spring wire lever 7 is mounted on the one hand on a guide 8 fixed to the frame, on the other hand it spirally wraps around the other end of a guide piece 21 which forms the axis of the pivot lever 9. 2, part of the spring wire lever 13.
  • the area that wraps around the guide piece 21 serves as an additional resilient element to support the torsional action of the spring wire bracket body.
  • the central position of the pivot lever corresponds to the first pressure position of the paper pressure roller 19, the left locking position (dashed), a position of the paper pressure roller 19 pivoted away from the paper roller 1, and the position of the swivel lever shown in dashed lines to the right of the central position, a rest position with increased pressure of the paper pressure roller on the paper roller.
  • Such a variation of the pressure force of the paper pressure roller on the paper roll 1 can e.g. be necessary if you want to use paper of different thickness and different formats (e.g. single sheet and continuous paper) in the printing device.

Landscapes

  • Handling Of Cut Paper (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP83110924A 1982-11-05 1983-11-02 Dispositifs d'introduction de papier avec un arbre de transport du papier basculant Expired EP0111702B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3240989 1982-11-05
DE3240989 1982-11-05

Publications (3)

Publication Number Publication Date
EP0111702A2 true EP0111702A2 (fr) 1984-06-27
EP0111702A3 EP0111702A3 (en) 1985-05-29
EP0111702B1 EP0111702B1 (fr) 1987-02-04

Family

ID=6177423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110924A Expired EP0111702B1 (fr) 1982-11-05 1983-11-02 Dispositifs d'introduction de papier avec un arbre de transport du papier basculant

Country Status (3)

Country Link
US (1) US4537521A (fr)
EP (1) EP0111702B1 (fr)
DE (1) DE3369661D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021016A1 (fr) * 1992-04-16 1993-10-28 International Business Machines Corporation Mecanisme d'avance pour supports a deplacer
DE19525074A1 (de) * 1994-07-11 1996-01-25 Fujitsu Ltd Papierabgabevorrichtung

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4651173A (en) * 1984-05-19 1987-03-17 Canon Kabushiki Kaisha Continuous-form recorder having decrumpling means for removing creases in the form
US5393151A (en) * 1993-06-03 1995-02-28 Hewlett-Packard Company Print medium handling system including cockle ribs to control pen-to-print medium spacing during printing
US5419644A (en) * 1993-06-03 1995-05-30 Hewlett-Packard Company Print medium handling system including cockle springs to control pen-to-print medium spacing during printing
KR0185047B1 (ko) * 1996-09-17 1999-05-15 김광호 용지 걸림 및 귀접힘 현상을 방지하기 위한 프린터의 용지 이송 장치 및 방법
US6152442A (en) * 1997-09-12 2000-11-28 Canon Kabushiki Kaisha Sheet separating and conveying apparatus having friction releasing device to separate convey and friction means
US10016220B2 (en) 2011-11-01 2018-07-10 Nuvasive Specialized Orthopedics, Inc. Adjustable magnetic devices and methods of using same
JP6408182B1 (ja) * 2017-10-18 2018-10-17 ローランドディー．ジー．株式会社 インクジェットプリンタおよびカッティングヘッド付きインクジェットプリンタ

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1067450B (de) * 1959-10-22 IBM Deutschland Internationale Buro-Maschmen Gesellschaft mbH, Smdelfingen (Wurtt) Papierführung fur Schreibwerke
DE365592C (de) * 1922-12-18 Underwood Typewriter Co Rollenandrueckvorrichtung fuer die Schreibblaetter gegen die Schreibwalze
US784366A (en) * 1903-09-01 1905-03-07 Wyckoff Seamans & Benedict Type-writing machine.
US1371909A (en) * 1919-05-09 1921-03-15 Underwood Typewriter Co Typewriting-machine
US1401103A (en) * 1919-05-14 1921-12-20 Underwood Typewriter Co Typewriting-machine
US2007360A (en) * 1934-03-29 1935-07-09 Samuel I Berger Typewriting machine
FR1062197A (fr) * 1952-08-26 1954-04-20 Touche de libération du papier sur machines imprimantes
US4221489A (en) * 1978-11-06 1980-09-09 International Business Machines Corporation Self aligning paper feed roller assembly
DE3014340C2 (de) * 1980-04-15 1982-09-16 Adlerwerke Vorm. Heinrich Kleyer Ag, 6000 Frankfurt Einrichtung zum Andrücken und Abheben einer Papiertransportwelle von einer Schreibwalze einer Schreibmaschine, eines Druckers o.dgl.
JPS6015472B2 (ja) * 1980-07-10 1985-04-19 ブラザー工業株式会社 用紙給送装置
JPS588679A (ja) * 1981-07-08 1983-01-18 Seiko Epson Corp 紙送り機構
US4364683A (en) * 1981-12-23 1982-12-21 International Business Machines Corporation Paper feed roller assembly for a typewriter or printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021016A1 (fr) * 1992-04-16 1993-10-28 International Business Machines Corporation Mecanisme d'avance pour supports a deplacer
DE19525074A1 (de) * 1994-07-11 1996-01-25 Fujitsu Ltd Papierabgabevorrichtung
DE19525074C2 (de) * 1994-07-11 1998-01-08 Fujitsu Ltd Papiertransportvorrichtung

Also Published As

Publication number Publication date
US4537521A (en) 1985-08-27
EP0111702A3 (en) 1985-05-29
DE3369661D1 (en) 1987-03-12
EP0111702B1 (fr) 1987-02-04

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