EP1634835B1 - Einrichtung zum Ablenken der ablaufenden Blattkante für eine Blatthandhabungsvorrichtung und entsprechendes Verfahren - Google Patents

Einrichtung zum Ablenken der ablaufenden Blattkante für eine Blatthandhabungsvorrichtung und entsprechendes Verfahren Download PDF

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Publication number
EP1634835B1
EP1634835B1 EP05019703A EP05019703A EP1634835B1 EP 1634835 B1 EP1634835 B1 EP 1634835B1 EP 05019703 A EP05019703 A EP 05019703A EP 05019703 A EP05019703 A EP 05019703A EP 1634835 B1 EP1634835 B1 EP 1634835B1
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EP
European Patent Office
Prior art keywords
sheet
sheets
passage
feed path
handling apparatus
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.)
Expired - Fee Related
Application number
EP05019703A
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English (en)
French (fr)
Other versions
EP1634835A3 (de
EP1634835A2 (de
Inventor
Geoffrey Alan Farmer
Peter John Watson
Keith George Robert Watts
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.)
Pitney Bowes Ltd
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Pitney Bowes Ltd
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Filing date
Publication date
Application filed by Pitney Bowes Ltd filed Critical Pitney Bowes Ltd
Publication of EP1634835A2 publication Critical patent/EP1634835A2/de
Publication of EP1634835A3 publication Critical patent/EP1634835A3/de
Application granted granted Critical
Publication of EP1634835B1 publication Critical patent/EP1634835B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H29/12—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
    • B65H29/14—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 and introducing into a pile
    • B65H29/145—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 and introducing into a pile the pile being formed between the two, or between the two sets of, 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
    • 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
    • B65H29/14—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 and introducing into a pile
    • 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
    • B65H2301/10—Selective handling processes
    • B65H2301/15—Selective handling processes of sheets in pile or in shingled formation
    • B65H2301/151—Selective shingled formation
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal
    • B65H2301/42124—Forming a pile of articles substantially horizontal by introducing articles selectively from under or above the pile
    • 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
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4213—Forming a pile of a limited number of articles, e.g. buffering, forming bundles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1313—Edges trailing edge

Definitions

  • This invention relates to a sheet handling apparatus and to a method of sheet handling.
  • Such an apparatus and method are preferably capable of selectively performing a plurality of operations on each of a number of different sheet or booklet elements, as well as envelopes.
  • operations on an envelope might include flapping, inserting, moistening and sealing, whilst operations on one or more sheets might include collating, folding and inserting into an envelope.
  • operations on one or more sheets might include collating, folding and inserting into an envelope.
  • a machine which collates several sheets of paper into a bundle, folds the bundle, places an insert, such as a leaflet or booklet into the bundle, provides an envelope which is held open, inserts the folded sheets into the envelope, moistens the envelope and seals it, before ejecting the envelope into a receiving tray or bin.
  • Each of these operations is distinct and requires a separate and unique processing region within the machine in order to successfully and repeatably carry out the required operation on the respective element.
  • folder/inserter machines of the type described hereinbefore are typically large and complicated to program.
  • GB-A-2380157 discloses a small office folder/ inserter having two trays, and for storing sheets to be folded and the other for storing inserts to be inserted into the sheets.
  • One location is specified for folding said sheets, another location for placing the insert into the folded sheets, and a further location for inserting the folded bundle into an envelope.
  • the machine further comprises a location for storing envelopes, means for opening said envelopes and holding the envelopes open to receive the folded bundle at the inserting location, a section for moistening the flap of the envelope and a section for closing the flap of the envelope to seal it and ejecting the envelope to a receiving tray. Because of the small size and compactness of the machine, it is suitable for performing only a limited number of cycles in a given time period, i.e. it does not have a very high-volume throughput. Further, such machines can lack versatility, since they are suitable only for performing the respective feeding, folding, inserting, envelope opening, envelope moistening and sealing operations on a limited range of sizes of sheets/in
  • DE 197 49 610 C1 discloses a device for forming a scaled flow of overlapped articles.
  • the rear edge of each article deflects out of the flow path as the article is fed around a curved portion of flow path, due to the resiience of the material from which the article is formed.
  • a following article is fed so that it impacts the side of the preceding article and is deflected around the curve in the flow path.
  • the partially overlapped articles are then advanced together.
  • EP-A2-0 768 260 discloses a paper handling apparatus comprising ramps 41 at the exit of a feed roller pair 16, 18. As each sheet of paper is fed between the rollers, the rear portion of the sheet adopts an arcuate shape over the ramps 41 and curves upwards at the trailing edge due to the rigidity of the paper. Subsequent sheets are then fed under the upwardly curved trailing edges.
  • US-A-5,244,200 discloses a retractable ramp accumulator. Sheets are fed seriatim along a feed path between upper and lower elastic belts 10 and 12. Sheets are fed past retractable ramps 28, 68 against a stop by driving action of the belts. Subsequent sheets can be over- or under-accumulated with sheets held against the stop by interposing the deflectable ramps 28, 68 up or down so as to divert the subsequent sheet correspondingly up or down out of the feed path. The subsequent sheets are thereby fed over or under the held sheets.
  • a sheet handling apparatus for feeding a sequential plurality of sheets comprising: a sheet feed path for guiding sheets in a sheet feeding direction through the apparatus; driving means for driving sheets along the sheet feed path; and trail edge deflecting means located on the sheet feed path, the trail edge deflecting means being arranged to deflect the trailing edge of a leading sheet to ensure overlap by a following sheet on a predetermined side of the leading sheet, wherein the trail edge deflecting means comprises: a rotatable member rotatable about an axis of rotation located across the sheet feed path perpendicular to the sheet feeding direction; a passage formed through the member having an inlet and an outlet, the passage, in use of the sheet handling apparatus, being aligned in the sheet feeding direction and the inlet and outlet being aligned with adjacent sections of the sheet feed path to allow sheets to pass through the passage; and actuation means for selectively rotating the member through a predetermined angle.
  • a method of sheet handling in which a plurality of sheets are successively fed to an overlapping station, and the trailing edge of each sheet is deflected laterally to ensure correct ordering in the overlapping station, wherein each sheet in succession is fed through a passage having an inlet and an outlet aligned in the sheet feeding direction with adjacent sections of the sheet feed path, and the trailing edge of each sheet is deflected by rotating the passage through a predetermined angle about an axis of rotation located across the sheet feeding path perpendicular to the sheet feeding direction as the trail edge of each sheet reaches the passage.
  • FIG. 1 shows a folder/inserter apparatus 1000 embodying the present invention. This embodiment is exemplary only, and is used to highlight and explain the inventive concept defined by the appended claims.
  • FIG. 1 shows a cross-sectional view of the folder/inserter apparatus 1000 and schematically shows various sections of the machine.
  • the folder/inserter apparatus 1000 comprises a sheet feeder section including sheet feeders 1, 2, 3 and 4, from which sheets are fed into a collation section 100 where they are collated into an ordered paper stream.
  • the paper stream is then fed along a sheet feed path which merges with an inlet from a convenience feeder 200, which acts as an alternative sheet feeder for certain documents.
  • the sheets then pass through an accumulator section 300 where they are grouped together as an ordered and aligned package. From the accumulator, the sheets pass through a sheet folder 500. Inserts fed from insert feeders 401 and 402 are collated in an insert feeder collation section 450 and then fed into a folded collation.
  • An envelope is fed from an envelope feeder 600 along an envelope transport path 650 to a flapper 700 where the envelope flap is opened and the mouth of the envelope held open at insertion section 750 to receive the folded collation.
  • the collation is inserted into the envelope and the envelope is fed into a final section 800 where the gum on the envelope flap is moistened and the envelope sealed.
  • the sealed envelope is then ejected into a receiving tray or bin.
  • FIG. 1 there is shown an inlet section which includes four sheet feeders 1, 2, 3 and 4.
  • Each of these sheet feeders comprises a respective sheet feeder tray 5,6,7 or 8 into which a stack of sheets may be placed.
  • the sheets in each tray are fed individually into a sheet feed path by respective sheet deskew mechanisms 50 which each act to separate a single sheet from the top of a stack of sheets in the associated sheet feeder tray and to feed the separated sheet into and along the sheet feed path.
  • Four deskew mechanisms 50 are shown in Figure 1 , only one of which is identified by reference numeral 50 in Figure 1 .
  • the other three deskew mechanisms are either identical or equivalent to that labelled 50.
  • Each of the sheet feeder deskew mechanisms feeds into a common sheet feed path via respective sheet feeding inlet paths P1,P2,P3 and P4.
  • the convenience feeder 200 similarly feeds into the common sheet feed path. All inlets to the sheet feed path from the four sheet feeders and from the convenience feeder 200 merge by a point T within the sheet feeder collation section 100. From the point T, the sheet feed path continues as a single sheet feed path up to the folder station 500.
  • the sheet feed path passes first through the accumulator 300, where a plurality of sheets may be brought together to form an aligned and ordered package.
  • the sheet feed path then passes through the sheet folding section 500 which produces a desired fold pattern in the accumulated document.
  • each insert feeder 401, 402 has a respective feeder tray 411, 412 which holds a plurality of inserts to be inserted into the folded collation.
  • Each insert feeder further has an associated feeder device 400 for feeding a single insert into the insert collation section 450. Inserts fed into the insert collation section 450 are collated together and then inserted into the main folded collation.
  • the envelope feeder 600 On the lefthand side of Figure 1 below the sheet feeders 1,2,3 and 4 is located the envelope feeder 600. Envelope feeder 600 holds a plurality of envelopes which are fed along the envelope transport path 650 and into the flapper mechanism 700.
  • the flapper mechanism 700 opens the flap of each envelope and uses mechanical fingers to hold the mouth of the envelope apart at insertion section 750 in order to allow the folded sheets (and any inserts) to be projected into the envelope.
  • the envelope, with inserted documents, then continues along the sheet feed path to the final section 800 in which the gum on the envelope flap is moistened and the flap is sealed.
  • the sealed envelope is then ejected from the folder/inserter apparatus 1000.
  • the sheet feeder deskew mechanism 50 comprises a separator roller 51 which applies a driving force to the uppermost sheet in a stack in the sheet feeder tray.
  • the separator roller 51 presses against a separator pad 52, normally in the form of a separator stone. This separator stone 52 prevents more than one sheet at a time from being fed into the sheet feed path by the roller 51.
  • the single sheet removed from the sheet feeder tray by the separator roller 51 is then driven towards a deskew roller pair 53 which is maintained stationary. As the sheet engages the nip defined by the deskew roller pair 53 it is caused to buckle (as illustrated at ). This forces the lead edge of the sheet to align with the nip of the deskew roller pair 53.
  • the separator roller 51 is then stopped and the deskew roller pair 53 operated to drive the sheet along the sheet feed path and into the sheet feeder collation section 100.
  • each sheet fed from a sheet feeder 1,2,3 or 4 or convenience feeder is received in the respective sheet feeding inlet path P1,P2, P3, P4 or P5 defined by guides G1 and G4 to G10.
  • the sheet feeding inlet paths merge into a single sheet feed path in the sheet feeder collation section 100.
  • Sheet feeding roller pairs 101,102,103 and 104 are located along the sheet feed path for forcing the sheets along the sheet feed path.
  • the first sheet feeder tray 5 receives a stack of sheets corresponding to page 1 of the document
  • the second sheet feeder tray 6 receives a stack of sheets corresponding to page 2 of the document
  • the third sheet feeder tray 7 receives a stack of sheets corresponding to the page 3 of the document
  • the fourth sheet feeder tray 8 receives a stack of sheets corresponding to page 4 of the document.
  • a single sheet is then fed sequentially from each of the first to fourth sheet feeders.
  • the first sheet from the first sheet feeder 1 passes into and along the sheet feeding inlet path P1 and partially along the common sheet feed path.
  • a sheet is then fed from the second sheet feeder 2 such that the leading edge of the second sheet partially overlaps the trailing edge of the first fed sheet within the sheet feeder collation section 100.
  • the third sheet is fed so that the leading edge of the third sheet partially overlaps the trailing edge of the second sheet
  • the fourth sheet is fed so that its leading edge partially overlaps the trailing edge of the third sheet.
  • the sheet collation is then driven from the collation section 100 into an accumulation section 300 comprising a vertical accumulator 350.
  • a pair of traction belts 351 running vertically and mutually parallel on a sled 352 (as best shown in Fig. 7 ).
  • a plurality of spring-biased idler rollers 365 to 369 are provided for each traction belt 351 to apply forces F1 to F5 to maintain the most recently-arrived sheet in contact with the tractions belts 351.
  • Each sheet fed into the accumulator 350 arrives at an accumulation chamber 364 defined on one side by a sled guide assembly SG including the sled 352 and the traction belts 351 and on the other side by a fixed guide assembly OG including fixed guide 353 and idler rollers 365 to 367.
  • the accumulation chamber 364 is substantially straight and vertical, such that the collation is accumulated into a vertical stack of sheets.
  • an accumulation gate 354 functioning as a stopping device.
  • Each sheet entering the accumulator 350 is driven downwardly through the accumulation chamber 364 towards the accumulation gate 354 by the traction belts 351 until its leading edge comes into contact with the accumulation gate 354.
  • the accumulator comprises the fixed guide assembly OG, and movable sled guide assembly SG.
  • the movable guide assembly SG includes driving means in the form of the pair of traction belts 351.
  • the fixed guide assembly OG includes idler rollers 365 to 367 for pressing the sheets to be accumulated against the traction belt 351 and rollers 361 to 363 for pressing the traction belt against the sheets to be accumulated.
  • the movable guide assembly also includes the sled 352 for assisting guidance of the sheets, or collations of sheets, into an accumulated bundle whilst accommodating a variable thickness of accumulation.
  • the means for driving the sheets downwardly towards the accumulation gate 354 is the pair of traction belts 351, although any suitable system of belts and rollers could be used.
  • the present embodiment has two drive belt assemblies which each consist of one of the traction belts 351, a drive roller 355 and a secondary tension roller 356 which holds the traction belt 351 under tension, along with idler rollers 361, 362, 363 in the sled 352 acting in opposition to the idler rollers 365 to 367 in the fixed guide assembly.
  • the idler rollers 365 to 367 associated with the fixed guide 353 could alternatively take the form of miniature drive belts biased towards the fixed idler rollers 361,362,363 in the sled, but preferably sprung idler rollers are biased towards the traction belts.
  • idler rollers 368 and 369 are mounted on a further guide component positioned above guide 353 (see Fig. 5 ).
  • the idler rollers 365 to 369 may be arranged to apply a force to the sheet which varies along the length of the accumulation chamber 364 and around the drive rollers 355 of the traction belt mechanisms 351.
  • Such a variable traction force over the length of the accumulation chamber reduces the column strength of a sheet required to enable it to resist the frictional driving forces of the traction belts.
  • the varied force is achieved by using sprung idler rollers 365, 366 and 367, each of which is biased towards the traction belts 351 by a different spring force, the spring force being largest for roller 367 and least for roller 365.
  • the downward driving force is resisted at the bottom of the accumulator by the accumulation gate 354, but it is important that the traction forces from the driving means do not cause the individual sheets to buckle or concertina.
  • the accumulated collation In traditional accumulators, the accumulated collation must be mechanically forced in order to propel it further along the sheet feed path. Because contact can be achieved only with the front and rear sheets at any time, the acceleration given to the accumulated collation must be limited in order to ensure that adjacent sheets do not slide relative to one another, thereby spreading apart the accumulated collation. As a result of the vertical orientation of the accumulation path in the present embodiment, a downward acceleration of 1g (i.e. under gravitational force) can be achieved without mechanical forcing. In addition, using additional forcing methods, a further acceleration of 1g may be imparted to the collation without resulting in the separation of adjacent sheets.
  • accumulated collations emerging from the accumulator 350 of the present embodiment may be accelerated at roughly 2g without resulting in sliding separation of the sheets. This allows for faster progression of the accumulated collation through the folder/inserter 1000, resulting in a higher-volume throughput of sheet packages.
  • the individual sheets are engaged by the pair of accumulator driving belts 351.
  • a pair of drive rollers 104 ( Fig. 5 ) feeds the sheet material along the sheet feed path towards the drive belts 351.
  • the drive belts 351 are stopped whilst the drive rollers 390 continue to feed a sheet into the accumulator 350. This allows subsequent sheets arriving after the first to be effectively overlapped with the sheet or sheets already in the accumulator 350 to ensure that they are engaged by driving means 351 and accumulated in the correct order.
  • a document may be fed into and accumulated in the accumulator.
  • the first is as described above, where individual sheets are fed from the separate feed trays 1, 2, 3, 4 ( Figure 1 ), loosely collated in the sheet feeder collation section 100, and then accumulated in the accumulator 350.
  • the sheets pass directly into the accumulation chamber in the correct order because they are already partially overlapped.
  • the second and subsequent sheets are always received between the sheet(s) already present in the accumulator and the traction belts 351, so that they are driven downwardly and accumulated against the accumulation gate 354 in the correct order.
  • the folder/inserter may also operate in two further modes for folding a mail piece and inserting it into an envelope.
  • pre-stapled sheets for example a five-page document stapled in one corner, are placed in the convenience tray 200.
  • This document is then fed directly to the accumulation chamber, where no further accumulation is required owing to the sheets being stapled.
  • the document then exits the accumulation chamber and is folded and inserted as normal.
  • a plurality of ordered, loose sheets are placed in convenience feeder 200 or one of the sheet feeder trays 5, 6, 7 or 8 ( Figure 1 ). These sheets are fed successively one-at-a-time along the sheet feed path and into the accumulator. However, in this mode, the sheets are not partially overlapped in the paper feed path, and this leads to the risk that the sheets will become incorrectly ordered, or incorrectly fed into the accumulator, leading to mis-collated mail packages or a jam in the folder/inserter machine 1000.
  • a trail edge deflector 380 is provided, as shown in Figures 1 , 5 and 7 .
  • the trail edge deflector 380 acts to lift the trail end of a sheet whose lead end is already in the accumulation chamber, to thereby ensure that the subsequent sheet to arrive is fed into the accumulator between the previous sheet and the traction belt.
  • the trail edge deflector 380 comprises a roller 381 through which there is a passage 382 suitable for allowing one or a plurality of sheets to pass through the roller.
  • the passage is flared at the inlet 383 and outlet 384 thereof to better accept the introduction of a sheet leading edge, to prevent jamming of the folder/inserter.
  • the sheets or stapled document, etc. simply pass through the passage 382 in the roller 381 and into the accumulator 350.
  • the deflector rotates by 180° (anticlockwise as shown in Figure 7 ). This forces the trail edge of that sheet upwards until it lies above the trail edge deflector 380.
  • the inlet 383 and outlet 384 of the passage 382 through the roller 381 have then reversed positions and the subsequent sheet enters the passage through what was previously the outlet 384. This is possible because the passage 382 has a cross-section with rotational symmetry.
  • the subsequent sheet is then guaranteed to be fed into the accumulator underneath the trail edge that was previously deflected, i.e. between the previous sheet and the traction belt 351.
  • This third mode of operation is particularly useful when, for example, a document has been printed by a laser jet printer and is collated in the correct order, and it is not desired to have to sort the individual pages of the document into the appropriate individual sheet feed trays.
  • the collation After leaving the accumulator, the collation passes into the folding section 500 which contains a variable folding apparatus.
  • the operation of such a folding apparatus is known, for example from GB-A-2380157 . Brief explanation is given here for a more complete understanding.
  • the folding apparatus comprises four rollers 501,502,503 and 504 arranged to form three pairs 510,520 and 530.
  • the leading edge of the collation passes through the first roller pair 510 and into a buckle chute 511 until it reaches an adjustable stop 512, here constituted as a pinch roller pair 513 which selectively stops the collation based on detection of the leading edge position.
  • an adjustable stop 512 here constituted as a pinch roller pair 513 which selectively stops the collation based on detection of the leading edge position.
  • the first roller pair continues to feed the sheet collation, causing it to buckle, and causing the buckled portion to enter the nip between the second roller pair 520. This results in the buckled portion being fed through the second roller pair 520 and forming a fold at the buckle, at a predetermined position.
  • the folded edge then becomes the lead edge of the collation and it is fed through the second roller pair 520 into a second buckle chute 521 until it moves into contact with a second stop 522 (which is preferably a pinch roller pair 523) which halts its movement.
  • the second roller pair 520 continues to feed the trailing edge of the sheet collation therethrough. Again, this causes the collation to buckle, and the second buckle is forced into the nip of the third roller pair 530, resulting in a second fold in the sheet collation at a predetermined point in the region of the second buckle.
  • the same apparatus can selectively perform either a double fold, a "Z" fold or a "C” fold in the sheet collation.
  • the sheet collation need only be folded a single time, for example simply folded in half. This single fold is achieved by operation of a half-fold mechanism 550. If a half-fold operation is selected, the half-fold mechanism 550 moves in the direction of arrow A to an interference position where it intercepts and redirects the accumulated collation as it exits the first roller pair 510.
  • the collation is then directed immediately through the second roller pair 520, rather than into the first buckle chute 511. Accordingly, the first fold is never made in the collation at the nip of the second roller pair, and only a single fold is created as the collation is buckled in the second buckle chute 521 and the buckle passes through the third roller pair 530, as normal.
  • one or more inserts may be fed from insert feeders 401 and 402 shown on the right hand side of Figure 1 .
  • the present embodiment has two insert feeders 401 and 402, which both feed an insert into and along an insert feed path.
  • One or both inserts are then collated in the insert feeder collation section 450 and the collated inserts are held at insert staging area I whilst the sheets are folded.
  • These collated inserts are then fed into the final fold in the sheet collation and form part of the folded document.
  • these inserts might be booklets, business reply envelopes, compliment slips, product samples, etc. of varied shape, size, thickness and pliability.
  • the envelope feeder 600 Below the sheet feeders 1 to 4 is located the envelope feeder 600.
  • the envelope first undergoes a flapping process in flapper section 700, in which the flap is opened.
  • the envelope is then held in the insertion region 750, where it is stopped.
  • Mechanical fingers engage with and hold open the mouth of the envelope.
  • the folded mail collation (including inserts) is inserted into the envelope by projecting the mail package towards the open mouth with sufficient velocity that its momentum will force it inside the envelope.
  • This mail piece, comprising the folded mail package within the envelope then proceeds to the sealing and ejection section 800.
  • a moistening device 820 where the gum seal on the envelope flap is moistened.
  • the envelope is then passed through a sealing/ejection mechanism 840. This performs a process which shuts and seals the moistened flap and ejects the envelope from the folder/inserter apparatus 1000 into a receiving tray or bin.
  • trailing edge deflector is described as a roller having a passage therethrough, the invention is not limited to this design.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (13)

  1. Blatthandhabungsmaschine (1000) zum Zuführen einer sequentiellen Vielzahl von Blättern, umfassend:
    einen Blattzuführpfad zum Führen von Blättern in einer Blattzuführrichtung durch die Maschine,
    Antriebsmittel (104, 351) zum Antreiben von Blättern entlang des Blattzuführpfads, und
    ein Rückkanten-Ablenkmittel (380), das am Blattzuführpfad gelegen ist, wobei das Rückkanten-Ablenkmittel eingerichtet ist, die Rückkante eines Führungsblattes abzulenken, um eine Überlappung durch ein folgendes Blatt an einer vorbestimmten Seite des Führungsblattes sicherzustellen,
    bei der das Rückkanten-Ablenkmittel (380) umfasst:
    ein drehbares Bauteil (381), das um eine über den Blattzuführpfad senkrecht zur Blattzuführrichtung gelegene Drehachse drehbar ist,
    einen durch das Bauteil ausgebildeten Durchgang (382) mit einem Einlass (383) und einem Auslass (384), wobei der Durchgang, bei Verwendung der Blatthandhabungsmaschine, in der Blattzuführrichtung ausgerichtet ist und der Einlass und der Auslass mit benachbarten Sektionen des Blattzuführpfads ausgerichtet sind, um Blätter durch den Durchgang gelangen zu lassen, und Betätigungsmittel zum selektiven Drehen des Bauteils (381) bis zu einem vorbestimmten Winkel.
  2. Blatthandhabungsmaschine gemäß Anspruch 1, bei der die Maschine aufweist:
    einen Normalblattzuführmodus, bei dem die Blätter indirekt entlang des Blattzuführpfads gelangen, und
    einen Ablenkmodus, bei dem die Rückkante des Führungsblattes durch das Ablenkmittel (380) abgelenkt wird, um eine Überlappung mit der Führungskante des folgenden Blattes sicherzustellen.
  3. Blatthandhabungsmaschine gemäß Anspruch 1 oder 2, bei der, bei Verwendung der Blatthandhabungsmaschine, die Führungskante jedes nachfolgend ankommenden Blattes durch die zuvor abgelenkte Rückkante des vorhergehenden Blattes derart überlappt wird, dass nachfolgend ankommende Blätter zwischen dem vorhergehenden Blatt und dem Antriebsmittel (351) zum Antreiben von Blattmaterial entlang dem Blattzuführpfad abgelegt werden.
  4. Blatthandhabungsmaschine gemäß Anspruch 1, 2 oder 3, bei der das Rückkantenablenkmittel (380) an einem Einlass zu einem Sammler (350) gelegen ist, wo das Blattmaterial in der richtigen Reihenfolge zu sammeln ist.
  5. Blatthandhabungsmaschine gemäß einem der vorangegangenen Ansprüche, bei welcher der vorbestimmte Winkel 180 Grad beträgt.
  6. Blatthandhabungsmaschine gemäß einem der vorangegangenen Ansprüche, bei welcher der Durchgangseinlass (383) an der Öffnung aufgeweitet ist.
  7. Blatthandhabungsmaschine gemäß einem der vorangegangenen Ansprüche, bei welcher der Durchgangsauslass (384) in der Blattzuführrichtung aufgeweitet ist.
  8. Blatthandhabungsmaschine gemäß einem der vorangegangenen Ansprüche, bei der, bei Verwendung der Blatthandhabungsmaschine, das Rückkantenablenkmittel (380) um den vorbestimmten Winkel gedreht wird, wenn sich die Rückkante des Blattes im Durchgang (382) befindet, um hierdurch die Rückkante aus dem Blattzuführpfad abzulenken, wobei der Durchgang dann dazu dient, die Führungskante des nachfolgenden Blattes direkt durch den Durchgang entlang dem Blattzuführpfad zu führen, um mit der abgelenkten Rückkante zu überlappen.
  9. Blatthandhabungsmaschine gemäß Anspruch 8, bei der das Rückkantenablenkmittel (380) eine 180-Grad Drehsymmetrie um die Längsachse aufweist, wobei der vorbestimmte Winkel 180 Grad beträgt, so dass, wenn das Ablenkmittel (380) um den vorbestimmten Winkel gedreht wird, der Durchgangseinlass (383) der Durchgangsauslass (384) wird, und der Durchgangsauslass (384) der Durchgangseinlass (383) wird.
  10. Verfahren zur Blatthandhabung, bei dem eine Vielzahl von Blättern nachfolgend zu einer überlappenden Station zugeführt werden, und die Rückkante jedes Blattes seitlich abgelenkt wird, um eine korrekte Reihenfolge in der Überlappungsstation sicherzustellen, bei dem jedes Blatt nacheinander durch einen einen Einlass (383) und einen Auslass (384), die in einer Blattzuführrichtung mit benachbarten Sektionen des Blattzuführpfades ausgerichtet sind, aufweisenden Durchgang (382) zugeführt wird, und die Rückkante jedes Blattes durch Drehen des Durchgangs (382) bis zu einen vorbestimmten Winkel um eine über dem Blattzuführpfad senkrecht zur Blattzuführrichtung gelegene Drehachse abgelenkt wird, sobald die Rückkante jedes Blattes den Durchgang (382) erreicht.
  11. Verfahren gemäß Anspruch 10, bei dem jedes nachfolgende Blatt gemäß einer der Seitenreihenfolge eines durch die Vielzahl der Blätter ausgebildeten Dokuments entsprechenden Reihenfolge in eine Sammlerstation (350) zugeführt wird.
  12. Verfahren gemäß Anspruch 10 oder 11, bei dem das Führungsende jedes Blattes in die Sammlerstation (350) zugeführt wird, und das Blatt dann durch das Antriebsmittel (351) gegriffen wird, das jedes Blatt zum Ende der Sammlerstation (350) treibt, wodurch die Vielzahl der Blätter am Ende der Sammlerstation (350) zusammen gesammelt werden.
  13. Verfahren gemäß Anspruch 12, bei dem jedes nachfolgende Blatt in die Sammlerstation zwischen die abgelenkte Rückkante des vorhergehenden Blattes und das Antriebsmittel (351) zugeführt wird.
EP05019703A 2004-09-09 2005-09-09 Einrichtung zum Ablenken der ablaufenden Blattkante für eine Blatthandhabungsvorrichtung und entsprechendes Verfahren Expired - Fee Related EP1634835B1 (de)

Applications Claiming Priority (1)

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GBGB0420031.7A GB0420031D0 (en) 2004-09-09 2004-09-09 Trailing edge deflector for sheet handling apparatus

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EP1634835A2 EP1634835A2 (de) 2006-03-15
EP1634835A3 EP1634835A3 (de) 2007-11-14
EP1634835B1 true EP1634835B1 (de) 2009-12-09

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Publication number Priority date Publication date Assignee Title
US5244200A (en) * 1992-08-18 1993-09-14 Bell & Howell Phillipsburg Company Retractable-ramp accumulator and method
US5655761A (en) * 1995-05-26 1997-08-12 Pitney Bowes Inc. Reversible sheet feeder accumulator
AUPN596195A0 (en) * 1995-10-12 1995-11-09 Intelmail Australia Pty. Ltd. Paper handling apparatus
DE19749610C1 (de) * 1997-11-10 1998-11-12 Siemens Ag Verfahren und Einrichtung zur Bildung eines Schuppenstromes überlappter Sendungen

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EP1634835A3 (de) 2007-11-14
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GB0420031D0 (en) 2004-10-13

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