EP1555231A1 - Transporteur pour déposer du matériau en feuilles sur un plateau, imprimante comprenant un tel transporteur, ainsi qu'un procédé pour déposer un matériau en feuilles sur un plateau - Google Patents

Transporteur pour déposer du matériau en feuilles sur un plateau, imprimante comprenant un tel transporteur, ainsi qu'un procédé pour déposer un matériau en feuilles sur un plateau Download PDF

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Publication number
EP1555231A1
EP1555231A1 EP05100008A EP05100008A EP1555231A1 EP 1555231 A1 EP1555231 A1 EP 1555231A1 EP 05100008 A EP05100008 A EP 05100008A EP 05100008 A EP05100008 A EP 05100008A EP 1555231 A1 EP1555231 A1 EP 1555231A1
Authority
EP
European Patent Office
Prior art keywords
roller
belt
rollers
transporter
sheet material
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Withdrawn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
EP05100008A
Other languages
German (de)
English (en)
Inventor
Ernest J.J. Clevers
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.)
Canon Production Printing Netherlands BV
Original Assignee
Oce Technologies BV
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 Oce Technologies BV filed Critical Oce Technologies BV
Priority to EP05100008A priority Critical patent/EP1555231A1/fr
Publication of EP1555231A1 publication Critical patent/EP1555231A1/fr
Withdrawn legal-status Critical Current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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B65H29/36—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from tapes, bands, or rollers rolled from under the articles

Definitions

  • the invention relates to a transporter for depositing sheet material on a tray, which transporter comprises at least two rollers which can be displaced with respect to each other, whilst a belt extends between said rollers above said tray.
  • the invention furthermore relates to a printer provided with such a transporter.
  • the invention also relates to a method for depositing a sheet material on a tray by means of a transporter comprising at least two rollers which can be displaced with respect to each other whilst a belt extends between said rollers above said tray.
  • an endless belt is located around a relatively large number of rollers, whereby two rollers can be displaced with respect to each other.
  • a first roller is located relatively close to a second roller, whereby a first end of sheet material is being deposited on the belt extending between said two rollers.
  • the first roller is being displaced away from the second roller, whereby the sheet material is being supported as well as transported by said belt.
  • the first roller is being displaced back to the second roller, whereby the sheet material is being deposited on said tray.
  • the endless belt is being guided along several deflection rollers being movable in a vertical direction for the purpose of length equalisation between the first and second roller as well as for tensioning the belt.
  • the transporter Due to said vertically displaceable rollers, the transporter has a relatively large height. Furthermore the vertically displaceable rollers makes the construction of the transporter relatively complicated.
  • the transporter in that the belt is connected with ends to said two rollers, whereby the belt can be rolled up on and unrolled from at least one of said rollers.
  • the belt Since the belt is being rolled up on and unrolled from at least one of said rollers, the length equalisation during displacement of the rollers with respect to each other as well as the tensioning of the belt will be taken care of by means of the same roller between which the belt extends on which the sheet material is temporarily being deposited during transport to the tray.
  • An embodiment of the transporter according to the invention is characterized in that the belt can be rolled up and unrolled from both rollers.
  • the belt can be rolled up and unrolled from the rollers in any desirable manner.
  • a further embodiment of the transporter according to the invention is characterized in that the belt is a wire.
  • a further embodiment of the transporter according to the invention is characterized in that the rollers and the belt extending between the rollers can be rotated together around an axis extending perpendicular to the longitudinal axis of the belt and the central axes of the rollers.
  • the rollers after rotating over 180°, the rollers will be exchanged, whereby the first roller has become the second roller and the second roller has become the first roller. If in the initial position the belt is being rolled up on the first roller and needs to be rolled up on the second roller, this can be achieved by exchanging the rollers with respect to each other by rotating them over 180°.
  • Yet another embodiment of the transporter according to the invention is characterized in that one end of at least one roller is rotatably and displaceably located between two endless belts.
  • the roller can be rotated as well as transported in two opposite directions by driving the endless belt either in the same or in opposite directions with the same or different velocities.
  • the invention furthermore relates to a printer which is provided with such a transporter.
  • printers relatively thin sheet material of paper on which a print is being applied, needs to be carefully deposited on a tray or on previously deposited sheets in said tray whereby sliding of a paper sheet with respect to another paper sheet is being prevented.
  • the paper sheet on the belt as well as the previous paper sheet already deposited on the tray has, in case of an inkjet printer, additional time to dry on the belt so that the risk that the print on the paper sheet will be destroyed by a paper sheet deposited thereon will be reduced or even eliminated.
  • the belt is connected with ends to said two rollers whereby the belt is rolled up on at least one of said rollers in an initial position of the two rollers, subsequently a first roller is being displaced with respect to a second roller, whereby the belt is being unrolled from at least one roller and the sheet material is being supported and transported by the belt until the first roller has received a predetermined end position, after which the first roller is being displaced back to the second roller whereby the belt is being rolled up on one of said rollers, whilst the sheet material is being deposited on said tray.
  • the displacement of the rollers with respect to the others as well as the rolling up and unrolling of the belt from at least one of said rollers causes the displacement of the belt, the length equalisation during displacement of the rollers with respect to the others as well as the tensioning of the belt.
  • An embodiment of the method according to the invention is characterized in that when the first roller is being displaced to the predetermined end position, the belt is being unrolled from said second roller.
  • Yet another embodiment of the method according to the invention is characterized in that when the first roller is being displaced to the predetermined end position, the belt is slightly rolled up on the first roller.
  • Another embodiment of the method according to the invention is characterized in that when the first roller is being displaced back to the second roller, the belt is being rolled up on the first roller.
  • the roller By rolling up the belt on the first roller, the roller is rolling away underneath the sheet material whereby no forces are applied on the sheet material due to which the sheet material might curling up or being moved.
  • Yet another embodiment of the method according to the invention is characterized in that near the initial position the belt is being unrolled from the first roller and rolled up on the second roller, before a new sheet material is being transported by said belt.
  • the first roller can be displaced again from the second roller, whereby the belt is being unrolled from said second roller to transport a sheet material.
  • Fig. 1 shows a transporter 1 according to the invention of a printer (not shown) which comprises a tray 2 located with one end 3 under a paper sheet guiding surface 4 of said printer.
  • the transporter 1 is furthermore provided with at least two sets of two rollers 5, 6 and a belt 7 connected with ends to the rollers 5, 6.
  • the roller 6 is rotatably mounted with respect to a frame (not shown) of said transporter 1 whilst the roller 5 is rotatably as well as displaceably with respect to the roller 6 mounted with respect to the frame (not shown).
  • the belt 7 is fully rolled up on the roller 6 and the roller 5 is in the initial position.
  • the first roller 5 is displaced in the direction indicated by arrow P2 until the roller 5 has reached the predetermined end position as shown in fig. 3. In this position the whole paper sheet 8 is supported by the belt 7 extending between the rollers 5, 6, whereby the first end 9 of the paper sheet 8 is located near the roller 5 whilst the opposite end 10 is located near the roller 6.
  • the first roller 5 is being rotated in a clockwise direction indicated by arrow R2 due to which rotation, the belt 7 will be rolled up on the roller 5 whilst at the same time the roller 5 will be displaced to the roller 6 in a direction indicated by arrow P3, opposite to the direction indicated by arrow P2.
  • the roller 6 will not be rotated.
  • roller 5 Due to the movement of the roller 5, the roller will be rolled away underneath the paper sheet 8 without applying any force on the paper sheet 8. The first end 9 and afterwards the rest of the paper sheet 8 will now be deposited on the tray 2 (see fig. 5). The roller 5 will be rotated in the direction indicated by arrow R2 until the belt 7 is fully rolled up on the roller 5 and the roller 5 is in the initial position again.
  • the belt 7 needs to be rolled up on the second roller 6 again to receive the start position as shown in fig. 1. Therefore, as shown in fig. 6 the rollers 5 and 6 are rotated anti clockwise in the directions indicated by arrows R3, R4 to unroll the belt 7 from the roller 5 whilst at the same time roll up the belt 7 on the roller 6.
  • Fig. 7 shows a part of another transporter 21 of the invention whereby the rollers 5, 6 as well as the belt 7 are simultaneously rotatable around an axis 22 in a direction indicated by arrow R5, which axis 22 extends perpendicular to the central axes 23, 24 of the rollers 5, 6 as well as of the longitudinal direction of the belt 7.
  • the roller 5, 6 as well as the belt 7 will be rotated over 180° in a direction indicated by arrow R5 in the situation as shown in fig. 5 whereby the whole belt 7 is being rolled up on the roller 5.
  • the roller 5 will take up the former position of the roller 6 whilst the roller 6 will take up the former position of the roller 5.
  • roller 5 provided with the belt 7 can now function as roller 6 whilst the empty roller 6 can now function as the roller 5.
  • Fig. 8 shows a part 31 of the transporter 1 according to the invention whereby an end of the roller 5 is located between two endless belts 32, 33 which extend respectively around rollers 34, 35, 36, 37.
  • Said rollers 34-37 are rotatably mounted with respect to a frame (not shown) of the transporter 1. If the rollers 35, 37 are being rotated in a respectively anti clockwise and clockwise direction indicated by the arrows R6, R7 the roller 5 will, due to friction with the belts 32, 33, be moved in the direction as indicated by arrow P2. If the rollers 35, 37 are both rotated anti clockwise indicated by the arrows R6, R8 the roller 5 will be rotated in a direction indicated by arrow R2.
  • rollers 35, 36 are being rotated clockwise in a direction indicated by arrow R9, R8 the roller 5 will be rotated anti clockwise in a direction as indicated by arrow R3.
  • the rollers 35, 37 are rotated clockwise and anti clockwise respectively as indicated by the arrows R9, R7, the roller 5 will be displaced in a direction indicated by arrow P3.
  • the belt 7 might be slightly rolled up on the belt 5 in the situation as shown in fig. 2 due to which the end 9 of the paper sheet 8 will be pulled in the direction as indicted by arrow P2 whereby the paper sheet 8 will be straightened and be prevented from curling.
  • rollers 5, 6 Preferably two or three sets of rollers 5, 6 are being provided whereby a wire type belt is connected to the rollers 5, 6.
  • a wire type belt is connected to the rollers 5, 6.
  • roller 6 is not being rotatable and forms a fixed connection with the printer, whereby the only rotatable roller is the roller 5.
  • the roller 5 will then be rotated in a direction as indicated by arrow R3 (fig. 6) whilst simultaneously being displaced in a direction indicated by arrow P2.
  • the sheet 8 will not automatically be transported by the belt 7 but needs to be pushed on the belt 7 by, for example the printer.
  • roller 5 can be non-rotatable and roller 6 is rotatably connected t the printer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
EP05100008A 2004-01-12 2005-01-03 Transporteur pour déposer du matériau en feuilles sur un plateau, imprimante comprenant un tel transporteur, ainsi qu'un procédé pour déposer un matériau en feuilles sur un plateau Withdrawn EP1555231A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05100008A EP1555231A1 (fr) 2004-01-12 2005-01-03 Transporteur pour déposer du matériau en feuilles sur un plateau, imprimante comprenant un tel transporteur, ainsi qu'un procédé pour déposer un matériau en feuilles sur un plateau

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04075013 2004-01-12
EP04075013 2004-01-12
EP05100008A EP1555231A1 (fr) 2004-01-12 2005-01-03 Transporteur pour déposer du matériau en feuilles sur un plateau, imprimante comprenant un tel transporteur, ainsi qu'un procédé pour déposer un matériau en feuilles sur un plateau

Publications (1)

Publication Number Publication Date
EP1555231A1 true EP1555231A1 (fr) 2005-07-20

Family

ID=34621569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05100008A Withdrawn EP1555231A1 (fr) 2004-01-12 2005-01-03 Transporteur pour déposer du matériau en feuilles sur un plateau, imprimante comprenant un tel transporteur, ainsi qu'un procédé pour déposer un matériau en feuilles sur un plateau

Country Status (1)

Country Link
EP (1) EP1555231A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191311449A (en) * 1913-05-16 1914-04-09 George Mann & Company Ltd Improvements in the Delivery Mechanism of Printing Machines.
DE364053C (de) * 1920-09-02 1922-11-16 Enrico Hanauer Vorrichtung zum Ausfuehren und Ablegen der Bogen an Druckmaschinen
GB334438A (en) * 1928-11-02 1930-09-04 Maschf Augsburg Nuernberg Ag Improvements in delivery devices for sheet printing machines, particularly intaglio sheet printing machines
CH359593A (fr) * 1960-04-28 1962-01-15 Bobst Fils Sa J Dispositif permettant d'intercepter en cours de distribution des feuilles déposées une à une en pile
US3411773A (en) * 1965-05-26 1968-11-19 Broadbent & Sons Ltd Thomas Stacking devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191311449A (en) * 1913-05-16 1914-04-09 George Mann & Company Ltd Improvements in the Delivery Mechanism of Printing Machines.
DE364053C (de) * 1920-09-02 1922-11-16 Enrico Hanauer Vorrichtung zum Ausfuehren und Ablegen der Bogen an Druckmaschinen
GB334438A (en) * 1928-11-02 1930-09-04 Maschf Augsburg Nuernberg Ag Improvements in delivery devices for sheet printing machines, particularly intaglio sheet printing machines
CH359593A (fr) * 1960-04-28 1962-01-15 Bobst Fils Sa J Dispositif permettant d'intercepter en cours de distribution des feuilles déposées une à une en pile
US3411773A (en) * 1965-05-26 1968-11-19 Broadbent & Sons Ltd Thomas Stacking devices

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