WO1998051599A1 - Vorrichtung und verfahren zum zuführen von einzelblättern zu einem drucker - Google Patents
Vorrichtung und verfahren zum zuführen von einzelblättern zu einem druckerInfo
- Publication number
- WO1998051599A1 WO1998051599A1 PCT/CH1998/000189 CH9800189W WO9851599A1 WO 1998051599 A1 WO1998051599 A1 WO 1998051599A1 CH 9800189 W CH9800189 W CH 9800189W WO 9851599 A1 WO9851599 A1 WO 9851599A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- printer
- stack
- sheets
- drawer
- single sheets
- Prior art date
Links
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
- B65H83/00—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such
- B65H83/02—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such performed on the same pile or stack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom
Definitions
- the invention relates to a device for feeding single sheets ge ass the preamble of claim 1.
- the invention further relates to a method for feeding single sheets according to the preamble of claim 9.
- a copier with a feed interface for an external input tray is known from the document EP 0 537 596 A2.
- This external input tray is as one
- Lift platform designed on which single sheets are stacked and fed to the feed interface.
- Such an elevator platform is also referred to as an "elevator platform" in English.
- the feed device disclosed in the document is suitable to be arranged at the feed interface for the external input compartment in order to replace the existing lift platform.
- a disadvantage of this known feed device is the fact that it is only suitable for arrangement at the feeder interface for the external input tray.
- printer means a device that prints and / or processes papers, such a printer being able to be designed, for example, as a fast printer, a copier or a laser printer.
- internal input tray is understood to mean an input tray for single sheets arranged within the printer, which is usually also referred to as a cassette or drawer.
- the invention has for its object to provide an economically advantageous device for feeding single sheets to a printer.
- the sub-claims 2 to 8 relate to further advantageous embodiments of the invention.
- the object is further achieved with a method for feeding single sheets having the features of claim 9.
- the sub-claims 11 and 13 relate to further advantageous embodiments of the method.
- a cassette or drawer for holding single sheets comprising a conveying device for feeding the single sheets, and an opening device for forming a stack from the supplied single sheets, the conveying device and the opening device being designed in such a way that they interact Single sheets are fed to the stack from below, and the pusher device is arranged in such a way that when the cassette or drawer is inserted in the printer, the upper part of the stack comes to lie in a position intended for paper removal.
- cassette Such a cassette or drawer is also called “cassette” in English and a removal device adapted to the cassette is called a “cassette type feed apparatus”.
- An advantage of the device according to the invention can be seen in the fact that a printer having an internal input compartment with the drawer or cassette according to the invention can be operated continuously and without interruption, since the single sheets can be fed continuously and in particular also at a very high cadence. In addition, no operator is required to insert the cut sheets into the drawer or cassette of the printer.
- the device according to the invention is designed such that it can be coupled to an existing, older printer.
- a printer that can only be fed with single sheets by means of a drawer can be modified in such a way that an automatic sheet feeder can be implemented.
- the device according to the invention is designed in such a way that, as a separate device or as part of the drawer, it holds a stack of individual sheets in the printer in a position provided for the paper take-off, the individual sheets being conveyed from outside the printer with a conveyor device and the Stacks are fed automatically.
- the device according to the invention generates a stack consisting of individual sheets in the stacking shaft of the printer, the stack always having paper during operation, so that the printer can be operated without interruption. No modifications are preferably required on the printer.
- the printer constantly assumes that there is a full stack of cut sheets.
- the feed device is arranged in a drawer in such a way that an existing, conventional drawer can be exchanged with the new drawer comprising the feed device.
- the single sheets to be fed from the outside are preferably fed to the feed device through an already existing opening in the printer, so that an existing printer can be provided inexpensively and quickly with an automatic feed device.
- the feed device arranged in the drawer or the feed device forming part of the drawer can be pulled out and serviced in a simple manner.
- FIG. 1 shows a drawer of a printer of known type receiving a stack of single sheets;
- Fig. 2 one arranged in the drawer
- Fig. 3 is a detailed view of another
- Fig. 4 is a detailed view of a trigger device for a drawer ge ass Fig. 3;
- Fig. 5 is a front view of a copier
- FIG. 1 shows a stacking slot 23 of a fast printer, not shown, preferably a laser printer, which is formed by a known type of drawer 20 with a stack 22 of individual sheets 24 filled therein.
- the single sheets 24 are removed by a printer device, not shown, from the fast printer in the direction of arrow 26, with the single sheet 24 lying on top of the stack 22 being removed in each case.
- the drawer 20 is intended for filling by hand, the drawer 20 being gripped by a handle 21 arranged on the front side and being pulled forward in the direction of movement 25.
- the production of the fast printer either has to be stopped or it has to be switched to another drawer or another compartment.
- stack 22 of individual sheets 24 is firmly connected to drawer 20 or forms part of the drawer.
- the conveying device 28 and the pushing-up device 50 are designed so as to interact with one another in such a way that the individual sheets 24 are fed to the stack 22 from below.
- the pushing device 50 and the conveying device are arranged such that the upper part of the stack 22 in the printer is in the position provided for being pulled off by the paper removal device.
- the individual sheets 24 are fed to the stack 22 by the conveying device 28 as a shingled stream 30.
- the individual sheets 24 are in the shingled stream 30 in a shingled position, so that they are fed to the stack 22 from below, while the printer pulls them up from the stack 22 in the direction of arrow 26 at right angles to the feed direction.
- the inner conveyor 28 which can be extended with the drawer 20 has an endless conveyor belt 32 on which the individual sheets 24 rest.
- the push-open device 50 can be formed solely by the front wall of the drawer 20 or, as shown in FIG. 2, as an additional device 50.
- a feed conveyor 36 is arranged, which feeds the single sheets 40 already delivered in the shingled stream from a storage, not shown.
- a feeder for single sheets 40 and further conveying elements are described in detail, for example, in EP-Al-0329089.
- This known device also has a
- Deflection device on, which deflects the shingled stream from a shingled to a shingled position.
- the overlapping position results when forming the Scale flow when the single sheets 24 are placed on a running conveyor belt.
- the scaled-down position is necessary in order to feed the single sheets 24 to the stack 22 from below.
- the conveyor 28 extends beyond the rear wall 34.
- the conveying device 28 could, for example, also be arranged completely inside the printer and the feed conveyor 36 outside the printer, in such a way that the individual sheets 24 can be fed to the printer through a relatively small, for example slit-shaped opening.
- the conveying device 28 and the feed conveyor 36 are arranged mutually in such a way that an already existing opening of the printer can be used for feeding the single sheets 24.
- the individual sheets 24 are transferred from the feed conveyor 36 to the inner conveyor device 28.
- the feed device shown comprises two sensors, a control device 40, for example in the form of a scanning lever or a photocell, for detecting the individual sheets 24 pulled from the stack 22 by the printer's withdrawal device, and a sensor (not shown) for detecting the height of the stack 22.
- a control device 40 for example in the form of a scanning lever or a photocell
- a sensor for detecting the height of the stack 22.
- the feed device When the feed device is started up, single sheets 24 are fed until the stack 22 has a predeterminable height which is monitored by the sensor. Thereupon, the feeding of the single sheets 22 is controlled via the signal of the control device 40. As soon as the control device 40 determines that a single sheet 24 The top of the stack 22 has been withdrawn, the conveyor 28 is controlled such that a single sheet 22 is fed and pushed into the stack 22 below. A new single sheet 24 is thus fed in synchronism with the removed single sheet 24.
- the height of the stack 22 is adjustable and is at least one single sheet 22, but advantageously a plurality of single sheets 22.
- the conveying device Since the direction of the fibers in the paper is important, depending on the further processing, it is advantageous to arrange the conveying device in such a way that the stack can be supplied from three sides.
- a printer can also have a plurality of the feed devices according to the invention.
- FIG. 5 schematically shows a printer or a copier 10 with two known interfaces for the feeding of single sheets, an external input compartment designed as a lift platform 12 and three superposed drawers 20 with handles 21 each designed as an internal input compartment.
- These drawers 20 have the Characteristic that they have to be pulled outward in the direction of movement 25 in order to fill up with single sheets on handles 21 which are arranged on the front side 10a of the printer 10.
- FIG. 3 shows a further exemplary embodiment of a drawer 20 according to the invention, which is inserted into the printer 10 according to FIG. 5, the front 10a and the rear wall 34 with the gap 34a of the printer 10 being apparent from the cross section.
- the drawer 20 includes one In cross-section L-shaped drawer body 20a, which has a handle 21 on the front.
- the drawer body 20a has guide means, not shown, which guide it in the printer 10 in the direction of movement 25.
- a conveyor device 28 is attached to the drawer body 20a and guides and conveys an endless conveyor belt 32 by means of at least partially driven rollers 29.
- the conveyor device 28 also includes a pressure roller 31, which presses the individual sheets 24, which are conveyed in a shingled position, against the conveyor belt 32.
- a push-up device 50 is also attached to the drawer body 20a and comprises a support ramp 50a, a push-up table 50b and a stop 50c formed by the front of the drawer body 20a.
- the conveyor device 28 and the pusher device 50 feed the single sheets 24 from below to the stack 22, so that a stack 22 of single sheets 24 is formed in the stacking slot 23 of the printer 10.
- a scanning lever 40 with lever arm 40a allows the height of the stack 22 to be monitored. The height thus sensed is detected by a measuring transducer (not shown) and fed to a control device.
- a feed conveyor 36 is arranged on the rear wall 34 thereof, which feeds the individual sheets 24 to the gap 34a, so that these can be transferred to the conveyor device 28 at the interface 38 designed in this way.
- FIG. 4 shows an exemplary embodiment of a pull-off device 27 with which the sheets 24 stacked in the drawer 20 according to FIG. 3 are pulled off individually in the direction of movement 26.
- This trigger device 27 comprises a in the direction of movement 27a movable conveyor belt 27b, which is guided on deflection rollers 27c rotatably mounted about axes 27d.
- the embodiment according to FIG. 3 has the advantage that this drawer 20 can be inserted into a printer 10 according to FIG. 5 instead of a conventional drawer shown in FIG. 1.
- the drawer according to the invention has the advantage of automatic sheet feeding, which is particularly advantageous if a printer 10 does not have an external input compartment 12. If a jam caused by the single sheets 24 occurs in the drawer 20 according to the invention, this can be easily removed by pulling the drawer out in the direction of movement 25, removing all the single sheets 24 located in the drawer 20, and then removing the drawer 20 again is closed. Thereupon, the stack 22 is automatically refilled with single sheets 24 by the shingled stream of single sheets 24 supplied via the feed conveyor 36.
- the drawer 20 according to the invention is thus extremely user-friendly to use.
- the gap 34a could also be arranged on a side wall of the printer 10, so that the individual sheets are not fed from the rear but laterally to the stack 22 of the drawer 20.
- the scaly stream of single sheets 24 is generated in such a way that a web is drawn off from a roll, for example a large paper roll, at a web speed, that the web is cut into single sheets and the single sheets are reduced with respect to the web speed Speed can be fed to the printer as a stream in the form of a scale via the feed conveyor 36.
- the drawer 20 according to the invention with the feed conveyor 36 advantageously has an independent control device which strives to keep the stack 22 of individual sheets 24 at an approximately constant height.
- the drawer 20 with the feed conveyor 36 is operated in an advantageous method such that a single sheet 24 is fed synchronously to the stack 22 for each single sheet 24 removed from the stack by the printer.
- the independent control device preferably works in such a way that the printer 10 constantly has the impression of having a full stack 22 of individual sheets 24.
- the number of individual sheets 24 located in the stack 22 is adjustable via the independent control device and can, for example, only be two to five individual sheets 24.
- the independent control device monitors certain control or sensor signals of the printer 10 in order to give the printer 10 the impression of a constantly filled stack 22, or in the event of faults that occur to react in accordance with the requirements of the printer 10, for example when clearing a paper jam already described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9827169A GB2330352B (en) | 1997-05-09 | 1998-05-08 | Device and method for feeding individual sheets to a printer |
JP54865698A JP2001520614A (ja) | 1997-05-09 | 1998-05-08 | プリンタに個別のシートを供給する方法と装置 |
DE19880616T DE19880616B4 (de) | 1997-05-09 | 1998-05-08 | Vorrichtung zum Zuführen von Einzelblättern zu einem Drucker |
US09/194,876 US6371475B1 (en) | 1997-05-09 | 1998-05-08 | Method and device for feeding individual sheets to a printer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATPCT/CH97/00181 | 1997-05-09 | ||
CH9700181 | 1997-05-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998051599A1 true WO1998051599A1 (de) | 1998-11-19 |
Family
ID=4550874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH1998/000189 WO1998051599A1 (de) | 1997-05-09 | 1998-05-08 | Vorrichtung und verfahren zum zuführen von einzelblättern zu einem drucker |
Country Status (5)
Country | Link |
---|---|
US (1) | US6371475B1 (de) |
JP (1) | JP2001520614A (de) |
DE (1) | DE19880616B4 (de) |
GB (1) | GB2330352B (de) |
WO (1) | WO1998051599A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB604653A (en) * | 1945-12-13 | 1948-07-07 | Albert Edward Gamlen | Improvements in sheet feeding devices for printing, embossing, cutting and like machines |
US4478400A (en) * | 1982-05-19 | 1984-10-23 | Suburban Duplicator Repair, Inc. | Envelope feeder for a duplicating press |
EP0329089A1 (de) * | 1988-02-17 | 1989-08-23 | Jos. Hunkeler AG Fabrik für graphische Maschinen | Vorrichtung zum Zuführen von Papier zu einem Einzelblätter verarbeitenden Schnelldrucker |
EP0537596A2 (de) * | 1991-10-09 | 1993-04-21 | Roll Systems, Inc. | Hochleistungsbogenanleger für Drucker mit hohem Durchsatz |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3212774A (en) | 1964-01-06 | 1965-10-19 | James E Ingalls | Stacking apparatus |
DD214110A1 (de) * | 1983-03-23 | 1984-10-03 | Polygraph Leipzig | Vorrichtung zum regeln des stapeltransportes an rundstapelbogenanlegern |
US4593897A (en) * | 1984-09-27 | 1986-06-10 | Xerox Corporation | Bottom stacking with air knife levitation and articulating seals |
DE4012281A1 (de) * | 1990-04-17 | 1991-10-24 | Rovema Gmbh | Verfahren und vorrichtung zum vereinzeln von faltschachteln |
US5280896A (en) * | 1992-09-10 | 1994-01-25 | Konica Corporation | Sheet refeeding device |
AU711307B2 (en) * | 1996-05-06 | 1999-10-07 | Ferag Ag | Device for feeding printed products to a further processing point |
JP3445724B2 (ja) * | 1997-05-28 | 2003-09-08 | シャープ株式会社 | 複写方法 |
-
1998
- 1998-05-08 GB GB9827169A patent/GB2330352B/en not_active Expired - Fee Related
- 1998-05-08 US US09/194,876 patent/US6371475B1/en not_active Expired - Fee Related
- 1998-05-08 DE DE19880616T patent/DE19880616B4/de not_active Expired - Fee Related
- 1998-05-08 WO PCT/CH1998/000189 patent/WO1998051599A1/de active Application Filing
- 1998-05-08 JP JP54865698A patent/JP2001520614A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB604653A (en) * | 1945-12-13 | 1948-07-07 | Albert Edward Gamlen | Improvements in sheet feeding devices for printing, embossing, cutting and like machines |
US4478400A (en) * | 1982-05-19 | 1984-10-23 | Suburban Duplicator Repair, Inc. | Envelope feeder for a duplicating press |
EP0329089A1 (de) * | 1988-02-17 | 1989-08-23 | Jos. Hunkeler AG Fabrik für graphische Maschinen | Vorrichtung zum Zuführen von Papier zu einem Einzelblätter verarbeitenden Schnelldrucker |
EP0537596A2 (de) * | 1991-10-09 | 1993-04-21 | Roll Systems, Inc. | Hochleistungsbogenanleger für Drucker mit hohem Durchsatz |
Also Published As
Publication number | Publication date |
---|---|
US6371475B1 (en) | 2002-04-16 |
GB2330352B (en) | 2001-07-25 |
DE19880616D2 (de) | 1999-07-01 |
DE19880616B4 (de) | 2006-04-13 |
GB2330352A (en) | 1999-04-21 |
GB9827169D0 (en) | 1999-02-03 |
JP2001520614A (ja) | 2001-10-30 |
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