EP0281498A2 - Dispositif de transport de feuilles et/ou de bandes dans des machines de bureau, en particulier des imprimantes matrix - Google Patents

Dispositif de transport de feuilles et/ou de bandes dans des machines de bureau, en particulier des imprimantes matrix Download PDF

Info

Publication number
EP0281498A2
EP0281498A2 EP88730011A EP88730011A EP0281498A2 EP 0281498 A2 EP0281498 A2 EP 0281498A2 EP 88730011 A EP88730011 A EP 88730011A EP 88730011 A EP88730011 A EP 88730011A EP 0281498 A2 EP0281498 A2 EP 0281498A2
Authority
EP
European Patent Office
Prior art keywords
roller
pressure
printer frame
bearing
pressure roller
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
EP88730011A
Other languages
German (de)
English (en)
Other versions
EP0281498A3 (en
EP0281498B1 (fr
Inventor
Günter Dipl.-Ing.(FH) Gomoll
Wolfgang Dipl.-Ing.(Fh) Hauslaib
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Priority to AT88730011T priority Critical patent/ATE86586T1/de
Publication of EP0281498A2 publication Critical patent/EP0281498A2/fr
Publication of EP0281498A3 publication Critical patent/EP0281498A3/de
Application granted granted Critical
Publication of EP0281498B1 publication Critical patent/EP0281498B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/132—Details of longitudinal profile arrangement of segments along axis
    • B65H2404/1321—Segments juxtaposed along axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/134—Axle
    • B65H2404/1341—Elastic mounting, i.e. subject to biasing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/137—Means for varying longitudinal profiles
    • B65H2404/1371—Means for bending, e.g. for controlled deflection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B65H2511/224—Nip between rollers, between belts or between rollers and belts

Definitions

  • the invention relates to a device for the paper transport of individual sheets and / or endless webs in office machines, in particular in matrix printers, with friction rollers rotatably mounted in side plates and at least individually driven, which are provided in pairs and which have a length / diameter ratio of 30: 1 to 50: 1.
  • the object of the invention is to make the friction the same size over the entire length of long, thin pairs of friction rollers.
  • a practically particularly advantageous embodiment of the invention now results from the fact that with an approximately parallel, positive course of the beige lines of the first and the second pressure roller, the pressure roller lying on the inside of the bending line course can be generated under a pretension due to a supporting force acting on the pressure roller lying on the inside, which attacks in the middle between the two bearing support forces. In this way, friction of the same size can be generated over the entire length of the pressure rollers.
  • one pressure roller is rigidly mounted with its roller journals in the printer frame and the other, opposing pressure roller is rotatably mounted on its roller journals by means of roller levers and tension springs suspended in the printer frame, the roller levers being rotatably mounted in the printer frame.
  • the supporting force provided in the central area can be generated by means of a bearing roller supported on the printer frame.
  • the supporting force can be transmitted particularly advantageously here due to the rolling friction.
  • the bearing roller generating the supporting force in the central region is itself supported by means of compression springs acting on a roller axis.
  • the magnitude of the force can be set here via the compression springs, whereby there is also coordination with the tension springs attached to the roller levers.
  • a device for paper transport is required which is adapted to the other assemblies of the matrix printer and its dimensions.
  • a matrix printer has friction rollers which are rotatably mounted in side plates and which act as pressure rollers 1 and 2.
  • One or both of the pressure rollers 1 and 2 is driven by rotation.
  • the pressure roller 1 has, for example, a supporting force length of 480 mm and a diameter of 14 mm and the pressure roller 2 has a diameter of 12 mm.
  • Axially immovable, elastic sleeves 3 are also arranged on the pressure roller 2.
  • Single sheets or endless webs 4 are guided in the direction 5 between the pressure rollers 1 and 2 and through a channel 6 in front of a pressure abutment 7, on which the paper is printed lying on the print head 8 and transported out again by the friction rollers 9 and 10.
  • the pressure rollers 1 and 2 considered here are arranged within a paper guide body 22, which forms a further paper channel 12 with the aid of a profile rod 13 (FIG. 1).
  • the bearing support forces 14a and 14b in the printer frame 15 result in a positive bending line 16 of the pressure roller 1 and a negative bending line 17 of the pressure roller 1 by means of a roller lever 18 and a tension spring 19 on the printer frame 15, the pressure roller 1 being pressed resiliently against the pressure roller 2 via the roller levers 19 and the tension springs 19.
  • the pressure rollers 1 and 2 are very thin for a very long time and, for structural reasons, the roller levers 18 can only be attached externally, the pressure rollers 1 and 2 are pressed apart in the central region 20.
  • a supporting force 21 is applied in the central region 20 against the pressure roller 2, so that the negative bending line 17 is converted into a positive bending line 22.
  • the support force 21 can be calculated or determined empirically.
  • the Bending lines 16 and 22 run largely parallel here.
  • An increase in the supporting force 21 results in a preload, the pressure rollers 1 and 2 securely abutting one another over their full length. Accordingly, a fed single sheet or a continuous paper web 4 is pressed and driven over its full width.
  • the roller journals 2a and 2b are rigidly mounted in the printer frame 15, the roller journals 1a and 1b of the pressure roller 1 are fastened to the printer frame 15 via the roller levers 18 and the tension springs 19.
  • the supporting force 21 in the central region 20 is generated by means of bearing roller 24 supported on the printer frame 15 or on a pressure abutment housing 23.
  • the roller axis 24a is supported by compression springs 25a and 25b.
  • the bearing roller 24 and the compression springs 25a and 25b are accommodated in a separate bearing bracket 26.
  • the bearing bracket 26 is fastened in the pressure abutment housing 23 by means of clamping wings 27a and 27b which engage in guide grooves 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Handling Of Cut Paper (AREA)
  • Handling Of Sheets (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Unwinding Webs (AREA)
EP88730011A 1987-02-24 1988-01-15 Dispositif de transport de feuilles et/ou de bandes dans des machines de bureau, en particulier des imprimantes matrix Expired - Lifetime EP0281498B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88730011T ATE86586T1 (de) 1987-02-24 1988-01-15 Vorrichtung fuer den papiertransport von einzelblaettern und/oder endlosbahnen in bueromaschinen, insbesondere in matrixdruckern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873705857 DE3705857A1 (de) 1987-02-24 1987-02-24 Vorrichtung fuer den papiertransport von einzelblaettern und/oder endlosbahnen in bueromaschinen, insbesondere in matrixdruckern
DE3705857 1987-02-24

Publications (3)

Publication Number Publication Date
EP0281498A2 true EP0281498A2 (fr) 1988-09-07
EP0281498A3 EP0281498A3 (en) 1990-01-10
EP0281498B1 EP0281498B1 (fr) 1993-03-10

Family

ID=6321636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730011A Expired - Lifetime EP0281498B1 (fr) 1987-02-24 1988-01-15 Dispositif de transport de feuilles et/ou de bandes dans des machines de bureau, en particulier des imprimantes matrix

Country Status (5)

Country Link
US (1) US4889270A (fr)
EP (1) EP0281498B1 (fr)
JP (1) JPS63252768A (fr)
AT (1) ATE86586T1 (fr)
DE (2) DE3705857A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465259A1 (fr) * 1990-07-06 1992-01-08 Sumitomo Gomu Kogyo Kabushiki Kaisha Rouleau élastique pour l'alimentation de papier
CN102896877A (zh) * 2012-09-19 2013-01-30 铜陵其利电子材料有限公司 一种镀膜机用碾平辊

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001019210A (ja) * 1999-07-09 2001-01-23 Alps Electric Co Ltd プリンタの紙送り機構
JP6493129B2 (ja) * 2015-09-30 2019-04-03 京セラドキュメントソリューションズ株式会社 画像形成装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE253360C (fr) *
US2849230A (en) * 1956-07-19 1958-08-26 Danly Mach Specialties Inc Hydraulically clamped stock feed assembly for power presses
NL260454A (fr) * 1960-01-28
US3330458A (en) * 1965-05-17 1967-07-11 Quik Chek Electronics And Phot Removable pressure roller mechanism
CH456649A (de) * 1967-05-25 1968-07-31 Winkler Fallert & Co Maschf Druck- oder Gegendruckzylinder für Druckmaschinen, insbesondere Tiefdruckmaschinen
US3561658A (en) * 1968-09-27 1971-02-09 Fmc Corp Nip roll assembly
DE2063377A1 (de) * 1970-12-23 1972-07-13 Adlerwerke Kleyer Ag H Randbegrenzungs- und Tabuliervorrichtung an Schreib- und ähnlichen Maschinen
DD103780A1 (fr) * 1973-03-07 1974-02-05
AT324944B (de) * 1973-10-12 1975-09-25 Voest Ag Vorrichtung zum fördern von bandförmigen werkstücken in bandlängsrichtung
JPS5760108Y2 (fr) * 1978-03-02 1982-12-22
JPS62103169A (ja) * 1985-10-30 1987-05-13 Seikosha Co Ltd プリンタの紙送り機構

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465259A1 (fr) * 1990-07-06 1992-01-08 Sumitomo Gomu Kogyo Kabushiki Kaisha Rouleau élastique pour l'alimentation de papier
CN102896877A (zh) * 2012-09-19 2013-01-30 铜陵其利电子材料有限公司 一种镀膜机用碾平辊

Also Published As

Publication number Publication date
DE3878947D1 (de) 1993-04-15
EP0281498A3 (en) 1990-01-10
ATE86586T1 (de) 1993-03-15
US4889270A (en) 1989-12-26
JPS63252768A (ja) 1988-10-19
EP0281498B1 (fr) 1993-03-10
DE3705857A1 (de) 1988-09-01

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