WO2005003007A1 - A sheet buffering means and method for buffering sheets - Google Patents
A sheet buffering means and method for buffering sheets Download PDFInfo
- Publication number
- WO2005003007A1 WO2005003007A1 PCT/SE2004/001061 SE2004001061W WO2005003007A1 WO 2005003007 A1 WO2005003007 A1 WO 2005003007A1 SE 2004001061 W SE2004001061 W SE 2004001061W WO 2005003007 A1 WO2005003007 A1 WO 2005003007A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rollers
- sheet
- pair
- buffering
- rear pair
- 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
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/004—Deskewing sheet by abutting against a stop, i.e. producing a buckling of the sheet
-
- 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
- B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2220/00—Function indicators
- B65H2220/09—Function indicators indicating that several of an entity are present
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/512—Changing form of handled material
- B65H2301/5121—Bending, buckling, curling, bringing a curvature
- B65H2301/51212—Bending, buckling, curling, bringing a curvature perpendicularly to the direction of displacement of handled material, e.g. forming a loop
-
- 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
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/70—Other elements in edge contact with handled material, e.g. registering, orientating, guiding devices
- B65H2404/72—Stops, gauge pins, e.g. stationary
- B65H2404/723—Stops, gauge pins, e.g. stationary formed of forwarding means
- B65H2404/7231—Stops, gauge pins, e.g. stationary formed of forwarding means by nip rollers in standby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/06—Office-type machines, e.g. photocopiers
Definitions
- the present invention concerns sheet buffering means for placement between paper handling equipment, such as a printer, offset press, copying machine or paper collator, and paper finishing equipment, such as for stapling and/or folding and a method for buffering sheets.
- paper handling equipment such as a printer, offset press, copying machine or paper collator
- paper finishing equipment such as for stapling and/or folding and a method for buffering sheets.
- the paper finishing equipment is mounted after the paper handling equipment, such as the printer or paper collator, in the form of equipment for compiling, stapling, folding, foldprocessing, such as square back folding, book production or mailinserting.
- the paper finishing equipment which is to process the sheets must generally be able to process these in the speed of flow present in the middle of a shower. This requires very quick equipment which therefore are expensive to manufacture, buy and service due to the requirement of speed.
- a time gap should be needed to provide for in chosen positions in the process.
- the buffering system comprises a number of paper paths and driving pairs of rollers.
- a special paper path is provided for the buffering of one or more sheets by means of a pair of rollers stopping the feeding of the leading edge of the sheet while the sheet still is fed forward, which causes the sheet to bend upwards and whereupon the following edge of the sheet "flips" over the rear pair of rollers and places itself flat thereupon.
- a second sheet may be fed underneath the overhead sheet, whereupon these thereafter may be fed out together but with a small dislocation.
- the present invention aims to solve these problems and does so by means of a sheet buffering means according to claim 1 and a method of buffering sheets according to claim 9.
- the advantages with the present invention are that it can be made very short seen in the length extension of the process chain due to the bending of the sheet/sheets which is sustained during the whole time of buffering. Additionally, the number of paper paths may be considerably decreased as above all, their length and complicity. This brings about a more simple, less expensive, more compact and more easily handled means.
- Fig. 1 shows a preferred embodiment of sheet buffering means according to the present invention
- Fig. 2 shows driving of the rollers in the preferred embodiment of Fig. 1.
- Fig. 1 shows sheet buffering means intended to buffer up to two sheets 7, comprising an upper buffering path 11 and a lower buffering path 12.
- the upper buffering path 11 will be described on its own.
- the sheet buffering means may comprise only one buffering path for the buffering of only one sheet if so desired.
- a sheet 7 is guided by means of a flap 5 into a rear pair of rollers 13 comprising a driven roller 1 and a counter roller 8.
- the rear pair of rollers 13 feeds the sheet 7 forward so that it reaches a front pair of rollers 14 comprising a driven roller 2 and a counter roller 9.
- the front pair of rollers 14 is stopped whereby the lead end 16 of the sheet 7 is held in place in the nip 15. Meanwhile, the rear pair of rollers 13 continues to feed the sheet 7 forward. Due to this the sheet 7 bend, in this case upwards, since a guide 6 stops the sheet from bending downwards .
- the guide 6 is not necessary for the sheet 7 to find the right way to the front pair of rollers 14 but for the sheet 7 to bend in the desired direction.
- the guide 6 is slightly bent upwards in order to ease the start of the bending.
- a compliant guide 10 may be provided directed towards the front pair of rollers 14. This compliant guide do not stop the bending of the sheet 7 but stop the sheet 7 from abutting the driving roller 2 in the front pair of rollers 14.
- the pair of rollers are driven at a higher speed when feeding out for additional time savings.
- rollers 1 and 2 are driven and the counter rollers 8, 9 only follows, but if desired the counter rollers 8, 9 may also be driven, see Fig. 1.
- Each driven roller 1, 2 may be driven by a motor each, for example an electrical motor, but preferably the rollers 1 and 2 are driven by the same motor 19, whereby the front driving roller 2 is provided with a clutch 22 so that the front roller 2 may be disengaged from the driving force and thus be stopped during the time the lead end 16 of the sheet 7 is held in place.
- a transmission belt 23 transfer the driving force of the motor 19 to both of the rollers 1 and 2.
- a friction brake 30 is preferably provided in order to prevent a more rigid sheet of its own motion presses itself through the front pair of rollers 14.
- the rollers are spring biased towards each other and preferably provided with a flexible material at least at its periphery.
- the lower buffering path 12 is a mirror image of the upper buffering path 11.
- the flap 5 may be angled between the different buffering paths 11 and 12 (or more if so desired) in order to allow guidance of the sheets 7 to a desired buffering path 11, 12.
- two short, simple paper paths 20 are provided on each side of the flap 5.
- two short, simple paper paths 21 are preferably provided at the output end 24 of the sheet buffering means for guidance into the subsequent paper finishing equipment .
- a signal is needed from the subsequent paper finishing equipment which indicate that it is ready to receive sheets 7, whereby the sheets 7 pass directly through the sheet buffering means without storage. If the paper finishing equipment is not ready, i.e. processing a number of sheets 7 the sheet buffering means is set in active position.
- the flap 5 When a sheet is detected by an inlet sensor 26 provided at the inlet end 25 of the sheet buffering means the flap 5 is set in an unoccupied position and the driving rollers 1 and 2 are started in the selected buffering path 11, 12.
- a front sensor 28 in each buffering path senses when the lead end 16 of the sheet 7 reaches at least the nip 15 between the front driving roller 2 and its counter roller 9 and then disengage the roller 2 from the driving force, whereby the front pair of rollers 14 stops so that the lead end 16 of the sheet 7 is held in place.
- the inlet sensor 26 senses when the trail end 18 of the sheet 7 soon or absolutely at the latest when it reaches the nip 17 between the rear driving roller 1 and its counter roller 8 and then turns off the motor 19. The flap 5 will then turn to the unoccupied buffering path.
- a bundle may be fed right through the sheet buffering means without intermediate storage, for example. This is achieved, for example, by the fact that the rollers are springbiased towards each other.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04749099A EP1654179B1 (en) | 2003-07-01 | 2004-06-30 | A sheet buffering means and method for buffering sheets |
JP2006518587A JP4540670B2 (en) | 2003-07-01 | 2004-06-30 | Sheet cushioning device and sheet cushioning method |
US10/563,063 US20060255536A1 (en) | 2003-07-01 | 2004-06-30 | Sheet buffering means and method for buffering sheets |
DE602004011784T DE602004011784T2 (en) | 2003-07-01 | 2004-06-30 | ARC FLUID AND METHOD OF BUFFING BOWS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0301942A SE525481C2 (en) | 2003-07-01 | 2003-07-01 | Sheet buffer and method of buffering sheets |
SE0301942-9 | 2003-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005003007A1 true WO2005003007A1 (en) | 2005-01-13 |
Family
ID=27731072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2004/001061 WO2005003007A1 (en) | 2003-07-01 | 2004-06-30 | A sheet buffering means and method for buffering sheets |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060255536A1 (en) |
EP (1) | EP1654179B1 (en) |
JP (1) | JP4540670B2 (en) |
CN (1) | CN1819960A (en) |
AT (1) | ATE385982T1 (en) |
DE (1) | DE602004011784T2 (en) |
SE (1) | SE525481C2 (en) |
WO (1) | WO2005003007A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7959631B2 (en) | 2005-12-21 | 2011-06-14 | Boston Scientific Scimed, Inc. | Ablation device with compression balloon |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5114517B2 (en) * | 2010-03-25 | 2013-01-09 | 京セラドキュメントソリューションズ株式会社 | Sheet post-processing apparatus and image forming apparatus |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3639053A (en) * | 1969-05-02 | 1972-02-01 | Xerox Corp | Web cutting and feeding apparatus |
US5289251A (en) * | 1993-05-19 | 1994-02-22 | Xerox Corporation | Trail edge buckling sheet buffering system |
US5356263A (en) * | 1992-12-16 | 1994-10-18 | Pitney Bowes Inc. | Buckle accumulator and method for accumulating sheets |
US5543909A (en) * | 1995-04-03 | 1996-08-06 | Xerox Corporation | Two step, large latitude, stalled roll registration system |
EP0856776A2 (en) * | 1997-01-31 | 1998-08-05 | Tektronix, Inc. | Apparatus and method for deskewing a sheet in a printer |
EP0872778A1 (en) * | 1997-04-14 | 1998-10-21 | Xerox Corporation | Internal purge for easy jam clearance in copiers/printers |
US6055409A (en) * | 1998-12-18 | 2000-04-25 | Xerox Corporation | Sheet pre-transfer device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63225051A (en) * | 1987-03-09 | 1988-09-20 | Minolta Camera Co Ltd | Paper sheet transporting device |
JP2750454B2 (en) * | 1989-07-21 | 1998-05-13 | ニスカ株式会社 | Sorter |
JPH04189171A (en) * | 1990-11-22 | 1992-07-07 | Canon Inc | Image forming apparatus |
JP3208193B2 (en) * | 1991-12-09 | 2001-09-10 | 株式会社リコー | Sheet feeding method for image forming apparatus and sheet feeding apparatus for executing the sheet feeding method |
JP3049628B2 (en) * | 1992-11-13 | 2000-06-05 | 富士ゼロックス株式会社 | Control device for curl correction device of image forming apparatus |
TW341955U (en) * | 1994-09-30 | 1998-10-01 | Mita Industrial Co Ltd | Device for conveying sheet members |
JP3395027B2 (en) * | 1995-10-02 | 2003-04-07 | コニカ株式会社 | Image forming device |
DE59706144D1 (en) * | 1996-10-22 | 2002-02-28 | Oce Printing Systems Gmbh | alignment |
JP3357977B2 (en) * | 1996-11-22 | 2002-12-16 | 富士通株式会社 | Method and apparatus for conveying sheet-like object, and printer |
US6209861B1 (en) * | 1998-03-11 | 2001-04-03 | Kyocera Mita Corporation | Sheet transport device and automatic document feeder |
US6148172A (en) * | 1998-10-09 | 2000-11-14 | Konica Corporation | Image forming apparatus having means for enhancing accuracy of conveyance of recording sheets |
US6263186B1 (en) * | 1999-03-31 | 2001-07-17 | Konica Corporation | Image forming apparatus and conveyance control method thereof |
JP3843730B2 (en) * | 2000-11-13 | 2006-11-08 | ブラザー工業株式会社 | Image forming apparatus and recording medium supply apparatus |
-
2003
- 2003-07-01 SE SE0301942A patent/SE525481C2/en not_active IP Right Cessation
-
2004
- 2004-06-30 WO PCT/SE2004/001061 patent/WO2005003007A1/en active IP Right Grant
- 2004-06-30 AT AT04749099T patent/ATE385982T1/en not_active IP Right Cessation
- 2004-06-30 EP EP04749099A patent/EP1654179B1/en not_active Not-in-force
- 2004-06-30 CN CNA2004800188392A patent/CN1819960A/en active Pending
- 2004-06-30 JP JP2006518587A patent/JP4540670B2/en active Active
- 2004-06-30 US US10/563,063 patent/US20060255536A1/en not_active Abandoned
- 2004-06-30 DE DE602004011784T patent/DE602004011784T2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3639053A (en) * | 1969-05-02 | 1972-02-01 | Xerox Corp | Web cutting and feeding apparatus |
US5356263A (en) * | 1992-12-16 | 1994-10-18 | Pitney Bowes Inc. | Buckle accumulator and method for accumulating sheets |
US5289251A (en) * | 1993-05-19 | 1994-02-22 | Xerox Corporation | Trail edge buckling sheet buffering system |
US5543909A (en) * | 1995-04-03 | 1996-08-06 | Xerox Corporation | Two step, large latitude, stalled roll registration system |
EP0856776A2 (en) * | 1997-01-31 | 1998-08-05 | Tektronix, Inc. | Apparatus and method for deskewing a sheet in a printer |
EP0872778A1 (en) * | 1997-04-14 | 1998-10-21 | Xerox Corporation | Internal purge for easy jam clearance in copiers/printers |
US6055409A (en) * | 1998-12-18 | 2000-04-25 | Xerox Corporation | Sheet pre-transfer device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7959631B2 (en) | 2005-12-21 | 2011-06-14 | Boston Scientific Scimed, Inc. | Ablation device with compression balloon |
Also Published As
Publication number | Publication date |
---|---|
EP1654179A1 (en) | 2006-05-10 |
JP2007521216A (en) | 2007-08-02 |
DE602004011784D1 (en) | 2008-03-27 |
SE0301942L (en) | 2005-01-02 |
SE525481C2 (en) | 2005-03-01 |
JP4540670B2 (en) | 2010-09-08 |
EP1654179B1 (en) | 2008-02-13 |
DE602004011784T2 (en) | 2009-02-05 |
ATE385982T1 (en) | 2008-03-15 |
CN1819960A (en) | 2006-08-16 |
SE0301942D0 (en) | 2003-07-01 |
US20060255536A1 (en) | 2006-11-16 |
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