EP0978466B1 - Apparatus for the separation of documents - Google Patents

Apparatus for the separation of documents Download PDF

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Publication number
EP0978466B1
EP0978466B1 EP99250259A EP99250259A EP0978466B1 EP 0978466 B1 EP0978466 B1 EP 0978466B1 EP 99250259 A EP99250259 A EP 99250259A EP 99250259 A EP99250259 A EP 99250259A EP 0978466 B1 EP0978466 B1 EP 0978466B1
Authority
EP
European Patent Office
Prior art keywords
driving
roller
combination
arrangement according
axle
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 - Lifetime
Application number
EP99250259A
Other languages
German (de)
French (fr)
Other versions
EP0978466A3 (en
EP0978466A2 (en
Inventor
Michael Dr. Schmidt-Kretschmer
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.)
Francotyp Postalia GmbH
Original Assignee
Francotyp Postalia GmbH
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 Francotyp Postalia GmbH filed Critical Francotyp Postalia GmbH
Publication of EP0978466A2 publication Critical patent/EP0978466A2/en
Publication of EP0978466A3 publication Critical patent/EP0978466A3/en
Application granted granted Critical
Publication of EP0978466B1 publication Critical patent/EP0978466B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07BTICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00Franking apparatus
    • G07B17/00459Details relating to mailpieces in a franking system
    • G07B17/00661Sensing or measuring mailpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00Separating articles from piles
    • B65H3/02Separating articles from piles using friction forces between articles and separator
    • B65H3/06Rollers or like rotary separators
    • B65H3/0676Rollers or like rotary separators with two or more separator rollers in the feeding direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00Separating articles from piles
    • B65H3/46Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/60Loosening articles in piles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/18Modifying or stopping actuation of separators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/30Orientation, displacement, position of the handled material
    • B65H2301/32Orientation of handled material
    • B65H2301/321Standing on edge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/40Identification
    • B65H2511/414Identification of mode of operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50Occurence
    • B65H2511/51Presence
    • B65H2511/514Particular portion of element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00Dynamic entities; Timing aspects
    • B65H2513/40Movement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00Dynamic entities; Timing aspects
    • B65H2513/50Timing
    • B65H2513/512Starting; Stopping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/13Parts concerned of the handled material
    • B65H2701/131Edges
    • B65H2701/1311Edges leading edge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/13Parts concerned of the handled material
    • B65H2701/131Edges
    • B65H2701/1313Edges trailing edge
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07BTICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00Franking apparatus
    • G07B17/00459Details relating to mailpieces in a franking system
    • G07B17/00467Transporting mailpieces
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07BTICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00Franking apparatus
    • G07B17/00459Details relating to mailpieces in a franking system
    • G07B17/00661Sensing or measuring mailpieces
    • G07B2017/00685Measuring the dimensions of mailpieces

Definitions

  • the invention relates to a device for separating printing media, especially letters placed in a stack.
  • the letters can have different thicknesses as well as the permissible Show formats in irregular order.
  • the processing like this any letters that arise are referred to as mixed mail operations.
  • Letter post processing systems usually consist of a letter separating device, in which the letters are stacked one after the other created, isolated and, if necessary, closed off a franking and / or addressing machine with optional scale and from a storage device, compare DE-M 96 09 167.3 in design sheet of the German Patent Office dated May 24, 1997, Part la, goods class 18/02.
  • the device according to the invention is part of a letter separating device.
  • the projecting outer contour shakes the stack of letters sufficiently and overcomes the frictional and adhesive forces that counteract the transport.
  • the force to be introduced is set via the stroke of the drive roller.
  • a stable preferred position of the stack of letters is achieved by the inclination of the guide plate; the axis of the drive roller is parallel to the guide plate. The problem of isolation remains unsolved.
  • an input device for a device for processing sheets such as paper money, postcards, see DE 2 725 947 A1, which consists of at least one conveyor belt and at least one counter roller, the counter roller being driven in the opposite direction with respect to the conveyor belt.
  • the sheets are transported from a sheet stacking station to a sheet processing station by means of the conveyor belt.
  • the counter roller is arranged so that there is a gap between the cylindrical outer surface of the roller and the outer surface of the conveyor belt, which gap allows at least one of the sheets to pass. This arrangement presupposes that the conveyor belt extends from the area of the sheet stacking point to the area of the sheet processing point, the sheets are transported horizontally on the conveyor belt and sheets are thus constantly pushed against the counter roller.
  • a device for separating mail pieces is also known, see US Pat. No. 4,615,519, in which letters standing on one edge are stored one behind the other as a stack of letters in a receiving area.
  • the stack of letters is pressed by spring force against a pull-off device by a thrust element guided on a carrier.
  • the take-off device consists of a drive roller made of rubber disks spaced one above the other on an axis.
  • the rubber washers partially protrude through a guide plate opposite the receiving area and lie against the broad side surface of the foremost letter of the stack, the guide plate engaging tooth-like in the gaps between the rubber washers.
  • the feed device is in a pre-separation area and in one Separation area divided and accordingly has a conveyor track, which consists of at least two conveyor lines on which the Letters are transported lying flat.
  • the first conveyor line is at the bottom of a stacking room and consists of driven central conveyor rollers that are the same are designed and have the same coefficient of friction, with a first drive motor.
  • the letters are stacked one on top of the other in the stacking space.
  • the bottom letter is by means of the conveyor rollers either transported to the separation area by frictional contact - first drive switched on - or braked - first drive off.
  • the second conveyor section in the separation area with the second drive motor has four driven conveyor rollers, one of which two conveyor rollers as pressure rollers above the table top are arranged.
  • the letter first arrives at a so-called Lock roller with profiled adhesive surface, then to a pair of conveyor rollers and then to a conveyor roller holding the letter presses against the conveyor table top and towards the franking machine continues to push.
  • the glide apron consists of a flexible smooth film and serves the respective letter with its leading edge to the gap between the lock roller and the adjacent retaining apron respectively.
  • the combination of a sliding apron and a retaining apron also serves to hold letters above the bottom letter.
  • a first sensor is arranged immediately in front of the first pair of conveyor rollers, which is a signal for switching off the first drive in the pre-separation area generated when the leading edge of the letter this happens. If the trailing edge of the letter the first sensor happens, this gives a signal to slow down the conveyor speed in the second conveyor line to the second drive.
  • a second sensor is arranged, which generates a signal for switching off the second drive and for switching on the drive in the franking machine and for switching on the first drive again, but for a slower conveying speed when the rear edge of the letter passes the second sensor.
  • a signal is given via a control line to switch on the two drives to full power when the printing medium in the franking machine has traveled a certain distance.
  • the purpose of the invention is to improve the performance properties.
  • the invention has for its object to provide a device with the print carrier from a stack safely pre-isolated and isolated become.
  • Technical effort and space requirements should be included be as low as possible.
  • the slide lever combination ensures that the last print carriers in a stack are reliably captured.
  • the device is suitable both for standing one behind the other on an edge and for printing carriers arranged lying flat one above the other.
  • a letter separating device B is functional in a pre-separation area I and a separation area II divided up.
  • a slightly backward inclined, rear guide plate 1 and a lower guide plate orthogonal to this 2 provided.
  • the letters A are arranged as a stack with the edge of their envelope flap standing on the lower guide plate 2 between a pressure bracket 21 and the rear guide plate 1.
  • the pressure bracket 21 is pivoted and lockable from an operating position to a rest position and vice versa. In the operating position shown here, the pressure bracket 21 assumes an orthogonal position to the lower guide plate 2 and is arranged to be displaceable towards and away from the rear guide plate 1 under the influence of a spring (not shown). In the rest position, the pressure bracket 21 assumes a horizontal position in an adapted recess of the lower guide plate 2 and finally flush with the latter. In this position, the pressure bracket 21 is locked, see also FIG. 2.
  • the letters A are slid along the rear guide plate 1 one by one from the pre-separation area I into the separation area II.
  • the drive roller combinations 3, 4 are arranged parallel to each other in contours and at the same height as the lower guide plate 2 and, due to their special design, as described below, cause the stack of letters to be shaken.
  • the first drive roller combination 3 consists of a lower first drive roller 31 with projections 311 and an upper drive roller 32 with projections 321, both of which are arranged at a distance from one another on a common axis 33, identical to the contours, see also FIGS. 3 and 4 ,
  • the drive roller 31 projects through an opening 11 and the drive roller 32 projects through an opening 12 in the rear guide plate 1.
  • the second drive roller combination 4 consists of a first lower drive roller 41 with projections 411 and an upper second drive roller 42 without projections, which is designed as a smooth spacer roller. Both drive rollers 41, 42 are likewise arranged at a distance from one another on a common axis 43, the top contour of the second drive roller 42 matching the envelope circle of the first drive roller 41.
  • the drive roller 41 protrudes through an opening 13 and the drive roller 42 protrudes through an opening 14 in the rear guide plate 1.
  • the length of the lower drive rollers 31, 41 is adapted to the height of the smallest conventional letter formats.
  • the lower drive rollers 31, 41 are longer than the upper drive rollers 32, 42.
  • the distance between the lower and upper drive rollers 31, 41, 32, 42 is selected so that the largest usual letter formats are still recorded in the upper part.
  • the projections 311, 321, 411 extend parallel to the axis of rotation over the full length of the roll and consist of interchangeable cylindrical shaped parts, preferably made of polyurethane. Material identities exist for the projections 311 and 321 of the drive rollers 31, 32 of the first drive carriage combination 3, in particular both have the same coefficient of friction.
  • the material for the projections 411 of the lower drive roller 41 of the second drive roller combination 4 is selected so that the coefficient of friction is smaller than that of the predecessors.
  • the upper drive roller 42 which is designed as a smooth spacer roller, consists of a relatively hard engineering plastic, for example polyoxymethylene, which is also expediently used for the other roller base bodies.
  • a relatively hard engineering plastic for example polyoxymethylene
  • the drive roller combinations 3, 4 rotate, the stack of letters is shaken once by the projections 311, 321, 411 of the drive rollers 31, 32, 41 and, on the other hand, the letters A are individually pushed sideways according to the coefficient of friction. Since the projections 311, 321 have a greater coefficient of friction than the following ones, the initial speed of the lateral movement is also determined by the former.
  • the projections 411 of the lower drive roller 41 only support the movement and the upper drive roller 42 primarily serves to reduce friction and distance.
  • the individual letter A is passed by means of a drive belt combination 6 and a driven counter-roller combination 7 adapted to this and a sliding lever combination 77 upstream of the letter transport direction past a sensor 10 for letter detection to a pair of ejection rollers 9, see also FIGS. 3, 5 and 6.
  • the sensor 10 is arranged in the print carrier transport direction immediately after the counter roller combination 7.
  • a signal is generated by the sensor 10, which serves to switch the drive roller combinations 3, 4 from drive to idle.
  • the sensor 10 accordingly generates a signal for switching from idle to drive.
  • the drive belt combination 6 has three identical drive belts 61, 62, 63, which are arranged equidistantly above one another and protrude through assigned openings 15 in the rear guide plate 1, see also FIG. 5.
  • the counter roller combination 7 has, as a counterpart to the drive belt combination 6, three counter rollers 71, 72, 73 which are arranged equidistantly on an axis 75 in such a way that the top counter roller 71 is level above the top drive belt 61 and the other two counter rollers 72, 73 den associated gaps between the drive belts 61, 62, 63 are opposite.
  • the axle 75 with the counter rollers 71, 72, 73 firmly seated on it is rotatably mounted on the free ends 762 of a correspondingly designed double support lever 76, which in turn is resiliently rotatably mounted on a driven axle 761 with its other ends 763, see also FIG.
  • the double support lever 76 with its free ends 762 can be pivoted towards and away from the drive belt combination 6.
  • the double support lever 76 is also provided at the ends 763 mounted on the axle 761 with a nose 7631 which lies in the pivoting range of a cam 781.
  • the cam 781 is part of a locking device 78 which can be actuated manually by means of a lever 782.
  • the cam 781 is fastened together with the lever 782 on a rotatable axis 783.
  • the locking device 78 is used to pivot and lock the double support lever 76 in the pivoted state.
  • the ejection roller pair 9 consists of a driven ejection roller 91 and an driven ejection roller 92.
  • the driven ejection roller 91 is fastened on a rotatable axis 911 behind the rear guide plate 1 and protrudes on its circumference through an associated opening 16 in the guide plate 1, see also FIGS. 3 and 4.
  • the driven ejection roller 92 is also fastened on a rotatable axis 921, which in turn is mounted on a rotatably spring-mounted support lever 93.
  • the support lever 93 is mounted on an axis 931 and is articulated via a coupling rod 784 to the axis 783 of the locking device 78. A simultaneous deactivation and locking together with the counter rollers 71, 72, 73 is thus achieved when the lever 782 is actuated accordingly, see also FIGS. 3 and 4.
  • the driven ejection roller 92 is shorter than the driven ejection roller 91 by more than the greatest height of the cover flaps of the letters A and is arranged flush with the latter. This prevents the letters from being closed prematurely by the ejection roller pair 9 with the risk of bags forming on the envelope flaps.
  • FIG. 3 shows a first motor 54 for driving the drive roller combinations 3, 4, a second motor 84 for driving the drive belt combination 6, the counter roller combination 7 and the ejection roller pair 9 and the slide lever combination 77.
  • 4 shows the connections between the motors 54, 84 and the drive devices for the letters A.
  • a perspective view from below was chosen 8 and rotated 90 ° backwards.
  • a pinion 541 on the motor axis of the first motor 54 is coupled via a toothed belt 57 to an intermediate wheel 56 which is arranged on a rigid axis 561 so as to be rotatable.
  • the intermediate wheel 56 is also connected via a toothed belt 55 to a pinion 52, which is fixedly arranged on the common, rotatable axis 43 of the second drive roller combination 4.
  • the pinion 52 is connected via a toothed belt 53 to a pinion 51, which is likewise fixedly arranged on the common, rotatable axis 33 of the first drive roller combination 3.
  • the pinion 51 and the pinion 52 are equipped with a freewheel, so that a rotation of the drive roller combinations 3, 4 is still possible with the motor 54 shaded if the friction between letter A and drive rollers 31, 32, 41, 42 is sufficient. This could occur if a letter has just been picked up by the drive belt combination 6 and the counter roller combination 7 and is still applied to at least one roller combination 3, 4.
  • a second motor 84 is provided, on the motor axis of which a pinion 841 is seated, which is coupled via a toothed belt 871 to an idler gear 87 which is fixedly arranged together with a drive wheel combination 64 on a rotatable axis 644, see also FIG. 5.
  • the intermediate wheel 87 is also connected via a toothed belt 831 to a drive pinion 83 which is rotatably arranged on a fixed axis 832.
  • the drive pinion 83 is coupled to a drive pinion 82 via a toothed belt 86 and secondly to a pinion 88 via a toothed belt 89.
  • the drive pinion 82 is fixedly arranged on a rotatable axis 761 together with the counter roller combination 7, see also FIG. 6.
  • the pinion 88 is fixedly arranged on the rotatable axis 911 together with the driven ejection roller 91.
  • the drive belt combination 6 except the three Drive belt 61, 62, 63 on a U-shaped support frame 67 in which axis 644 and axis 654 and axis 68 are rotatable are stored.
  • On the axis 644 are the drive belts 61, 62, 63 assigned drive wheels 641, 642, 643 attached.
  • On the move 654, the corresponding deflection wheels 651, 652, 653 are attached.
  • the sliding lever combination 77 is in the form of a two-armed lever against a spring 771 stretched over a Sliding friction clutch mounted on axis 761.
  • a transmission pinion 821 fixed on the axis 761 by the Drive pinion 82 is driven via the axis 761.
  • the rotary motion of the transmission pinion 821 is on a toothed belt 85 a pinion 81 transmitted, which on the rotatable axis 75th is fixed together with the counter rollers 71, 72, 73.
  • the axis 75 is rotatable at the free ends 762 of the double support lever 76 stored.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Ink Jet (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Vereinzeln von Druckträgern, insbesondere von Briefen, die in einem Stapel angelegt werden. Die Briefe können dabei unterschiedliche Dicke sowie die zulässigen Formate in unregelmäßiger Folge aufweisen. Die Verarbeitung derartig anfallender Briefe wird als Mischpostbetrieb bezeichnet.The invention relates to a device for separating printing media, especially letters placed in a stack. The letters can have different thicknesses as well as the permissible Show formats in irregular order. The processing like this any letters that arise are referred to as mixed mail operations.

Üblicherweise bestehen Briefpostverarbeitungssysteme aus einer Briefvereinzelungsvorrichtung, in der die Briefe zeitlich nacheinander stapelweise angelegt, vereinzelt und bedarfsweise verschlossen werden, aus einer Frankier- und/oder Adressiermaschine mit optionaler Waage und aus einer Ablagevorrichtung, vergleiche DE-M 96 09 167.3 in Geschmacksmusterblatt des Deutschen Patentamtes vom 24.05.1997, Teil la, Warenklasse 18/02.Letter post processing systems usually consist of a letter separating device, in which the letters are stacked one after the other created, isolated and, if necessary, closed off a franking and / or addressing machine with optional scale and from a storage device, compare DE-M 96 09 167.3 in design sheet of the German Patent Office dated May 24, 1997, Part la, goods class 18/02.

Die erfindungsgemäße Vorrichtung ist Bestandteil einer Briefvereinzelungsvorrichtung. The device according to the invention is part of a letter separating device.

Es ist eine Anordnung zum Vorvereinzeln von Druckträgem bekannt, siehe DE 196 05 017 A1 & EP-A-0 787 672, bei der Briefe auf einer Kante stehend hintereinander als Briefstapel abgelegt sind und die Briefe von dem Briefstapel seitlich weg einer Vereinzelungsvorrichtung zugeführt werden,
Die Briefe sind dabei zwischen einem federnd gelagerten Andruckbügel und mindestens einer Antriebswalze sowie einer leicht nach hinten geneigten Führungsplatte angeordnet. Die Standfläche für die Briefe und die Führungsplatte sind zueinander orthogonal.
Die Antriebswalze weist an der Außenkontur mindestens einen sich über die Walzenlänge erstreckenden Vorsprung parallel zur Umdrehungsachse auf. Die Hüllkurve der Antriebswalze ragt durch eine Öffnung der Führungsplatte so weit, daß mindestens ein Vorsprung aus der Öffnung vorsteht. Durch die hervorstehende Außenkontur werden der Briefstapel genügend aufgerüttelt und die dem Transport entgegenwirkenden Reibungs- und Adhäsionskräfte überwunden. Die einzuleitende Kraft wird über den Hub der Antriebswalze eingestellt. Durch die Neigung der Führungsplatte wird eine stabile Vorzugslage des Briefstapels erreicht; die Achse der Antriebswalze ist dabei parallel zur Führungsplatte.
Das Problem der Vereinzelung bleibt hierbei ungelöst.
An arrangement for pre-separating printing media is known, see DE 196 05 017 A1 & EP-A-0 787 672, in which letters are placed one behind the other as a stack of letters standing on one edge and the letters are fed laterally away from the stack of letters to a separating device,
The letters are arranged between a spring-loaded pressure bracket and at least one drive roller and a guide plate inclined slightly backwards. The base for the letters and the guide plate are orthogonal to each other.
The drive roller has on the outer contour at least one projection extending over the length of the roller parallel to the axis of rotation. The envelope of the drive roller protrudes through an opening in the guide plate so that at least one protrusion protrudes from the opening. The projecting outer contour shakes the stack of letters sufficiently and overcomes the frictional and adhesive forces that counteract the transport. The force to be introduced is set via the stroke of the drive roller. A stable preferred position of the stack of letters is achieved by the inclination of the guide plate; the axis of the drive roller is parallel to the guide plate.
The problem of isolation remains unsolved.

Es ist ferner eine Eingabevorrichtung für ein Gerät zum Verarbeiten von Bögen, wie Papiergeld, Postkarten bekannt, siehe DE 2 725 947 A1, die aus mindestens einem Transportband und mindestens einer Gegenrolle besteht, wobei die Gegenrolle in bezug auf das Transportband in Gegenrichtung angetrieben wird. Mittels des Transportbandes werden die Bögen von einer Bogenstapelstelle zu einer Bogenverarbeitungsstelle transportiert. Die Gegenrolle ist dabei so angeordnet, daß zwischen der zylindrischen Außenfläche der Rolle und der äußeren Oberfläche des Transportbandes ein Spalt vorhanden ist, der wenigstens einen der Bögen passieren läßt.
Diese Anordnung setzt voraus, daß das Transportband von dem Bereich der Bogenstapelstelle bis in den Bereich der Bogenverarbeitungsstelle reicht, die Bögen auf dem Transportband waagerecht transportiert und somit ständig Bögen gegen die Gegenrolle geschoben werden. Dadurch besteht aber andererseits die Gefahr, daß es an dieser Stelle zur Staubildung kommt und infolgedessen Bögen beschädigt werden können, zumal Maßnahmen zur Überwindung der Adhäsion zwischen den Briefen fehlen.
Ähnlich sind die Verhältnisse bei einer Dokumentenvereinzelungsvorrichtung gemäß EP 0 598 571 B1. Im Unterschied zur vorher beschriebenen Lösung werden hier anstelle der Gegenrollen Riemen eingesetzt.
There is also an input device for a device for processing sheets, such as paper money, postcards, see DE 2 725 947 A1, which consists of at least one conveyor belt and at least one counter roller, the counter roller being driven in the opposite direction with respect to the conveyor belt. The sheets are transported from a sheet stacking station to a sheet processing station by means of the conveyor belt. The counter roller is arranged so that there is a gap between the cylindrical outer surface of the roller and the outer surface of the conveyor belt, which gap allows at least one of the sheets to pass.
This arrangement presupposes that the conveyor belt extends from the area of the sheet stacking point to the area of the sheet processing point, the sheets are transported horizontally on the conveyor belt and sheets are thus constantly pushed against the counter roller. On the other hand, this creates the risk that jams may form at this point and, as a result, sheets may be damaged, especially since there are no measures to overcome the adhesion between the letters.
The situation is similar for a document separating device according to EP 0 598 571 B1. In contrast to the previously described solution, belts are used instead of the counter rollers.

Weiterhin ist noch eine Einrichtung zum Vereinzeln von Poststücken bekannt, siehe US 4,615,519, bei der Briefe auf einer Kante stehend als Briefstapel in einem Aufnahmebereich hintereinander abgelegt sind. Der Briefstapel wird mittels Federkraft von einem auf einem Träger geführten Schubelement gegen eine Abzugseinrichtung gedrückt.
Die Abzugseinrichtung besteht aus einer Antriebswalze aus im Abstand übereinander auf einer Achse angeordneten Gummischeiben. Die Gummischeiben ragen teilweise durch eine dem Aufnahmebereich gegenüberliegende Führungsplatte und liegen an der Breitseitenfläche des vordersten Briefes des Stapels an, wobei die Führungsplatte zahnartig in die Lücken zwischen den Gummischeiben greift.
Infolge der Federkraft besteht zwischen dem Briefstapel und der Antriebswalze eine annähernd konstante Kraft. Das ist an sich gesehen von Vorteil. Andererseits ist es aber problematisch, zwischen Antriebswalze und vorderstem Brief eine Kraft einzuleiten, die die Adhäsion und Reibung zwischen letzterem und dem übrigen Stapel sowie der Führungsplatte überwindet, zumal das Haftvermögen auf Grund unterschiedlicher Gewichte, Haftflächengröße und Papierbeschaffenheit sehr große Unterschiede aufweisen kann. Wenn die Antriebswalze erst einmal ins Rutschen kommt, sind Störungen im automatischen Betrieb die Folge.
Von der Abzugseinrichtung gelangen die abgezogenen Briefe zu einer Zylinderwalze und einem dieser gegenüberliegendem Gegenriemen und nachfolgend nochmals derselben Kombination. Die Antriebswalze und die beiden Zylinderwalzen werden gemeinsam von einem Motor über einen Zahnriemen angetrieben, der über einen weiteren Zahnriemen auch noch die Gegenriemen antreibt. Die gestaffelte Anordnung zweier Vereinzelungspaare erfordert einen entsprechend großen Platzbedarf und Aufwand.
A device for separating mail pieces is also known, see US Pat. No. 4,615,519, in which letters standing on one edge are stored one behind the other as a stack of letters in a receiving area. The stack of letters is pressed by spring force against a pull-off device by a thrust element guided on a carrier.
The take-off device consists of a drive roller made of rubber disks spaced one above the other on an axis. The rubber washers partially protrude through a guide plate opposite the receiving area and lie against the broad side surface of the foremost letter of the stack, the guide plate engaging tooth-like in the gaps between the rubber washers.
As a result of the spring force, there is an approximately constant force between the stack of letters and the drive roller. This is an advantage in itself. On the other hand, however, it is problematic to introduce a force between the drive roller and the foremost letter, which overcomes the adhesion and friction between the latter and the rest of the stack and the guide plate, especially since the adhesion can vary greatly due to different weights, adhesive surface size and paper quality. If the drive roller starts to slip, there will be disruptions in automatic operation.
From the take-off device, the letters that have been removed arrive at a cylinder roller and a counter belt lying opposite it and subsequently again in the same combination. The drive roller and the two cylinder rollers are driven together by a motor via a toothed belt, which also drives the counter belt via a further toothed belt. The staggered arrangement of two pairs of separators requires a correspondingly large amount of space and effort.

Schließlich ist noch eine Zuführeinrichtung für Briefe an eine Frankiermaschine, insbesondere das Zusammenspiel zwischen beiden Geräten, bekannt, siehe EP 0 057 810 A1. Die dabei getroffenen Maßnahmen sollen sichern, daß die Fördergeschwindigkeit der Zuführeinrichtung genau der Arbeitsgeschwindigkeit der anschließend angeordneten Frankiermaschine angepaßt ist und diese fortlaufend intermittierend arbeiten kann.Finally, there is a feed device for letters to a franking machine, especially the interaction between the two devices, known, see EP 0 057 810 A1. The measures taken should ensure that the conveying speed of the feed device exactly the working speed of the subsequently arranged Postage meter is adapted and this is continuously intermittent can work.

Die Zuführeinrichtung ist in einen Vorvereinzelungsbereich und in einen Vereinzelungsbereich aufgeteilt und hat dementsprechend eine Förderbahn, die aus mindestens zwei Förderstrecken besteht, auf der die Briefe flach liegend transportiert werden.The feed device is in a pre-separation area and in one Separation area divided and accordingly has a conveyor track, which consists of at least two conveyor lines on which the Letters are transported lying flat.

Die erste Förderstrecke befindet sich am Grunde eines Stapelraumes und besteht aus angetriebenen zentrischen Förderwalzen, die gleich gestaltet sind und denselben Reibwert aufweisen, mit einem ersten Antriebsmotor.The first conveyor line is at the bottom of a stacking room and consists of driven central conveyor rollers that are the same are designed and have the same coefficient of friction, with a first drive motor.

Die Briefe sind in dem Stapelraum flach liegend übereinander gestapelt. Der zuunterst liegende Brief wird mittels der Förderwalzen durch Reibkontakt entweder zum Vereinzelungsbereich hin transportiert - erster Antrieb eingeschaltet - oder abgebremst - erster Antrieb abgeschaltet.The letters are stacked one on top of the other in the stacking space. The bottom letter is by means of the conveyor rollers either transported to the separation area by frictional contact - first drive switched on - or braked - first drive off.

Die zweite, im Vereinzelungsbereich befindliche Förderstrecke mit dem zweiten Antriebsmotor hat vier angetriebene Förderwalzen, von denen zwei Förderwalzen als Andruckwalzen oberhalb der Fördertischplatte angeordnet sind. Der Brief gelangt zunächst zu einer sogenannten Schleusenwalze mit profilierter Haftoberfläche, danach zu einem Förderwalzenpaar und anschließend zu einer Förderwalze, die den Brief gegen die Fördertischplatte drückt und in Richtung der Frankiermaschine weiterschiebt.The second conveyor section in the separation area with the second drive motor has four driven conveyor rollers, one of which two conveyor rollers as pressure rollers above the table top are arranged. The letter first arrives at a so-called Lock roller with profiled adhesive surface, then to a pair of conveyor rollers and then to a conveyor roller holding the letter presses against the conveyor table top and towards the franking machine continues to push.

Oberhalb der Schleusenwalze ist eine elastische stumpfe Rückhalteschürze angeordnet, die mit einer vorgelagerten Gleitschürze gekoppelt ist. Die Gleitschürze besteht aus einer flexiblen glatten Folie und dient dazu, den jeweiligen Brief mit seiner Vorderkante zu dem Spalt zwischen der Schleusenwalze und der anliegenden Rückhalteschürze zu führen. Die Kombination aus Gleitschürze und Rückhalteschürze dient außerdem dazu, Briefe-oberhalb des untersten Briefes zurückzuhalten.There is an elastic blunt retaining apron above the lock roller arranged, coupled with an upstream glider apron is. The glide apron consists of a flexible smooth film and serves the respective letter with its leading edge to the gap between the lock roller and the adjacent retaining apron respectively. The combination of a sliding apron and a retaining apron also serves to hold letters above the bottom letter.

Unmittelbar vor dem ersten Förderwalzenpaar ist ein erster Sensor angeordnet, der ein Signal zur Abschaltung des ersten Antriebs im Vorvereinzelungsbereich erzeugt, wenn die Vorderkante des Briefes diesen passiert. Wenn die Hinterkante des Briefes den ersten Sensor passiert, gibt dieser ein Signal zur Verlangsamung der Fördergeschwindigkeit in der zweiten Förderstrecke an den zweiten Antrieb ab. A first sensor is arranged immediately in front of the first pair of conveyor rollers, which is a signal for switching off the first drive in the pre-separation area generated when the leading edge of the letter this happens. If the trailing edge of the letter the first sensor happens, this gives a signal to slow down the conveyor speed in the second conveyor line to the second drive.

Unmittelbar nach dem ersten Förderwalzenpaar ist ein zweiter Sensor angeordnet, der ein Signal zur Abschaltung des zweiten Antriebs und zur Anschaltung des Antriebs in der Frankiermaschine sowie zur Wiedereinschaltung des ersten Antriebs, aber auf langsamere Fördergeschwindigkeit erzeugt, wenn die Hinterkante des Briefes den zweiten Sensor passiert.
Von der dem Vereinzelungsbereich nachgeordneten Frankiermaschine wird über eine Steuerleitung ein Signal zur Einschaltung der beiden Antriebe auf volle Leistung gegeben, wenn der Druckträger in der Frankiermaschine eine bestimmte Strecke durchlaufen hat.
Diese Lösung ist aufwendig und kompliziert.
Immediately after the first pair of conveying rollers, a second sensor is arranged, which generates a signal for switching off the second drive and for switching on the drive in the franking machine and for switching on the first drive again, but for a slower conveying speed when the rear edge of the letter passes the second sensor.
From the franking machine downstream of the separating area, a signal is given via a control line to switch on the two drives to full power when the printing medium in the franking machine has traveled a certain distance.
This solution is complex and complicated.

Zweck der Erfindung ist eine Verbesserung der Gebrauchseigenschaften.The purpose of the invention is to improve the performance properties.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zu schaffen, mit der Druckträger von einem Stapel sicher vorvereinzelt und vereinzelt werden. Technischer Aufwand und Platzbedarf sollen dabei möglichst gering sein.The invention has for its object to provide a device with the print carrier from a stack safely pre-isolated and isolated become. Technical effort and space requirements should be included be as low as possible.

Erfindungsgemäß wird diese Aufgabe gemäß dem Hauptanspruch gelöst. Weitere vorteilhafte Merkmale der Erfindung sind den Unteransprüchen zu entnehmen.
Aufgrund der Verwendung von Antriebswalzen mit Rütteleigenschaften, separater Antriebe im Vorvereinzelungs- und Vereinzelungsbereich, der Ausführung des Antriebes im Vorvereinzetungsbereich mit Freilauf und der Antriebswalzen mit unterschiedlichem Reibwert und der Anordnung eines Sensors zur Druckträgererkenhung im Vereinzelungsbereich; der elektrisch mit dem Antrieb im Vorvereinzelungsbereich gekoppelt ist, wird erreicht, daß durch die Antriebswalzen im Vorvereinzelungsbereich kein Stau vor dem Vereinzelungsbereich erzeugt und jeweils nur ein Drucktäger zu den Nachfolgeeinrichtungen transportiert wird.
Die Unterteilung und Gestaltung der Antriebswalzenkombinationen im Vorvereinzelungsbereich ermöglicht eine zuverlässige Bearbeitung sowohl kleinster als auch größter üblicher Briefformate.
Aufgrund der Verwendung eines gemeinsamen Antriebes im Vereinzelungs- und Auswurfbereich und der Kopplung beider über Funktionshebel zur Betriebsarteneinstellung werden eine ökonomische Lösung und gute Serviceeigenschaften erreicht.
According to the invention, this object is achieved according to the main claim. Further advantageous features of the invention can be found in the subclaims.
Due to the use of drive rollers with vibrating properties, separate drives in the pre-separation and separation area, the design of the drive in the pre-separation area with freewheel and the drive rollers with different friction values and the arrangement of a sensor for pressure carrier detection in the separation area; which is electrically coupled to the drive in the pre-separation area ensures that no jam is generated in front of the separation area by the drive rollers in the pre-separation area and only one print medium is transported to the subsequent devices.
The subdivision and design of the drive roller combinations in the pre-separation area enables reliable processing of both the smallest and largest standard letter formats.
Due to the use of a common drive in the separating and ejection area and the coupling of both using function levers for setting the operating mode, an economical solution and good service properties are achieved.

Durch die Gleithebelkombination wird die sichere Erfassung der letzten Druckträger eines Stapels gewährleistet.
Die Vorrichtung ist sowohl für auf einer Kante hintereinander stehend als auch für übereinander flach liegend angeordnete Druckträger geeignet.
The slide lever combination ensures that the last print carriers in a stack are reliably captured.
The device is suitable both for standing one behind the other on an edge and for printing carriers arranged lying flat one above the other.

Die Erfindung wird nachstehend am Ausführungsbeispiel näher erläutert.The invention is explained in more detail below using the exemplary embodiment explained.

Es zeigen:

Fig. 1
Eine Briefvereinzelungsvorrichtung in perspektivischer Ansicht von links,
Fig. 2
ein Ansicht nach Fig.1, teilweise ausgeschnitten beziehungsweise ausgebrochen,
Fig. 3
eine teilweise Draufsicht nach Fig. 2,
Fig. 4
Einzelheiten zum Antrieb in Unteransicht,
Fig. 5
eine perspektivische Ansicht der Antriebsriemenkombination von vom rechts,
Fig. 6
perspektivische Ansichten der Gegenrollen- und Gleithebelkombination,
  • a) von vom rechts,
  • b) von hinten links.
  • Show it:
    Fig. 1
    A letter separating device in a perspective view from the left,
    Fig. 2
    1, partially cut out or broken out,
    Fig. 3
    3 shows a partial top view according to FIG. 2,
    Fig. 4
    Details of the drive in bottom view,
    Fig. 5
    a perspective view of the drive belt combination from the right,
    Fig. 6
    perspective views of the counter roller and slide lever combination,
  • a) from the right,
  • b) from the rear left.
  • Zur Vereinfachung und zum leichteren Verständnis ist die Darstellung schematisiert ausgeführt. Anstelle des Begriffes "Druckträger" wird nachfolgend der Kürze wegen der Begriff "Brief" verwendet.The illustration is for simplification and easier understanding carried out schematically. Instead of the term "print medium" hereinafter used for brevity because of the term "letter".

    Gemäß Fig.1 ist eine Briefvereinzelungsvorrichtung B funktionell in einen Vorvereinzelungsbereich I und in einen Vereinzelungsbereich II aufgeteilt. Zur Führung der Briefe A ist eine leicht rückwärts geneigte, hintere Führungsplatte 1 und eine zu dieser orthogonale, untere Führungsplatte 2 vorgesehen. According to FIG. 1, a letter separating device B is functional in a pre-separation area I and a separation area II divided up. To guide letters A, a slightly backward inclined, rear guide plate 1 and a lower guide plate orthogonal to this 2 provided.

    Die Briefe A sind als Stapel mit der Kante ihrer Umschlagklappe auf der unteren Führungsplatte 2 stehend zwischen einem Andruckbügel 21 und der hinteren Führungsplatte 1 kraftschlüssig angeordnet.
    Der Andruckbügel 21 ist aus einer Betriebslage in eine Ruhelage und umgekehrt schwenkbar und arretierbar angeordnet.
    In der hier dargestellten Betriebslage nimmt der Andruckbügel 21 zur unteren Führungsplatte 2 eine orthogonale Stellung ein und ist unter dem Einfluß einer nicht dargestellten Feder auf die hintere Führungsplatte 1 zu und von dieser weg verschiebbar angeordnet.
    In der Ruhelage, nimmt der Andruckbügel 21 eine waagerechte Stellung in einer angepaßten Ausnehmung der unteren Führungsplatte 2 und bündig abschließend mit letzterer ein. In dieser Stellung ist der Andruckbügel 21 arretiert, siehe auch Fig. 2.
    Mittels zweier Antriebswalzenkombinationen 3, 4 werden die Briefe A an der hinteren Führungsplatte 1 entlanggleitend einer nach dem anderen vom Vorvereinzelungsbereich I in den Vereinzelungsbereich II geschoben.
    Die Antriebswalzenkombinationen 3, 4 sind zueinander konturenparallei und in gleicher Höhe zur unteren Führungsplatte 2 angeordnet und bewirken auf Grund ihrer speziellen Gestaltung, wie nachfolgend beschrieben, ein Aufrütteln des Briefstapels.
    Entsprechend Fig. 2 besteht die erste Antriebswalzenkombination 3 aus einer unteren ersten Antriebswalze 31 mit Vorsprüngen 311 und einer oberen Antriebswalze 32 mit Vorsprüngen 321, die beide in Draufsicht konturenidentisch mit Abstand zueinander auf einer gemeinsamen Achse 33 angeordnet sind, siehe auch Fig. 3 und 4.
    Die Antriebswalze 31 ragt durch eine Öffnung 11 und die Antriebswalze 32 ragt durch eine Öffnung 12 in der hinteren Führungsplatte 1.
    Die zweite Antriebswalzenkombination 4 besteht aus einer ersten unteren Antriebswalze 41 mit Vorsprüngen 411 und einer oberen zweiten Antriebswalze 42 ohne Vorsprünge, die als glatte Distanzwalze ausgeführt ist. Beide Antriebswalzen 41, 42 sind gleichfalls auf einer gemeinsamen Achse 43 mit Abstand zueinander angeordnet, wobei in Draufsicht die Außenkontur der zweiten Antriebswalze 42 mit dem Hüllkreis der ersten Antriebswalze 41 übereinstimmt.
    Die Antriebswalze 41 ragt durch eine Öffnung 13 und die Antriebswalze 42 ragt durch eine Öffnung 14 in der hinteren Führungsplatte 1.
    Die Länge der unteren Antriebswalzen 31, 41 ist der Höhe der kleinsten üblichen Briefformate angepaßt. Die unteren Antriebswalzen 31, 41 sind länger als die oberen Antriebswalzen 32, 42.
    Der Abstand zwischen den unteren und oberen Antriebswalzen 31, 41, 32, 42 ist so gewählt, daß die größten üblichen Briefformate noch im oberen Teil erfaßt werden.
    Die Vorsprünge 311, 321, 411 erstrecken sich parallel zur Umdrehungsachse über die volle Walzenlänge und bestehen aus auswechselbaren zylinderförmigen Formteilen aus vorzugsweise Polyurethan. Für die Vorsprünge 311 und 321 der Antriebswalzen 31, 32 der ersten Antriebswatzenkombination 3 besteht Materialidentität, insbesondere weisen beide denselben Reibwert auf.
    Das Material für die Vorsprünge 411 der unteren Antriebswalze 41 der zweiten Antriebswalzenkombination 4 ist so gewählt, daß der Reibwert gegenüber den Vorgängern kleiner ist.
    Die als glatte Distanzwalze ausgeführte obere Antriebswalze 42 besteht aus einem relativ harten technischen Kunststoff, beispielsweise Polyoxymethylen, der zweckmäßig auch für die anderen Walzengrundkörper verwendet wird.
    Bei Rotation der Antriebswalzenkombinationen 3, 4 werden durch die Vorsprünge 311, 321, 411 der Antriebswalzen 31, 32, 41 einmal der Briefstapel aufgerüttelt und zum anderen die Briefe A entsprechend dem Reibwert einzeln seitlich weggeschoben.
    Da die Vorsprünge 311, 321 gegenüber den folgenden einen größeren Reibwert haben, wird durch erstere auch das Anfangstempo der seitlichen Bewegung bestimmt. Die Vorsprünge 411 der unteren Antriebswalze 41 wirken für die Bewegung nur unterstützend und die obere Antriebswalze 42 dient vorrangig zur Reibungsminderung und Distanzierung.
    Im Vereinzelungsbereich II wird der einzelne Brief A mittels einer Antriebsriemenkombination 6 und einer dieser angepaßten angetriebenen Gegenrollenkombination 7 sowie einer entgegen der Brieftransportrichtung vorgelagerten Gleithebelkombination 77 an einem Sensor 10 zur Brieferkennung vorbei zu einem Auswurfwalzenpaar 9 geleitet, siehe auch Fig. 3, 5 und 6.
    Der Sensor 10 ist in Druckträgertransportrichtung unmittelbar nach der Gegenrollenkombination 7 angeordnet.
    Bei Briefanfangserkennung durch den Sensor 10 wird durch diesen ein Signal erzeugt, das zur Umschaltung der Antriebswalzenkombinationen 3, 4 von Antrieb auf Leerlauf dient.
    Bei Briefende wird durch den Sensor 10 entsprechend ein Signal zur Umschaltung von Leerlauf auf Antrieb erzeugt.
    Auf diese Weise wird erreicht, daß der nächste Brief A aus dem Anlage- beziehungsweise Vorvereinzelungsbereich I erst dann in den Vereinzelungsbereich II geschoben wird, wenn der aktuelle Brief A denselben verlassen hat. Damit ist eine Staubildung ausgeschlossen.
    Die Antriebsriemenkombination 6 weist drei identische Antriebsriemen 61, 62, 63 auf, die übereinander äquidistant angeordnet sind und durch zugeordnete Öffnungen 15 in der hinteren Führungsplatte 1 ragen, vergleiche auch Fig. 5.
    Die Gegenrollenkombination 7 weist als Pendant zur Antriebsriemenkombination 6 drei Gegenrollen 71, 72, 73 auf, die auf einer Achse 75 analog äquidistant so angeordnet sind, daß die oberste Gegenrolle 71 niveaumäßig über dem obersten Antriebsriemen 61 liegt und die übrigen beiden Gegenrollen 72, 73 den zugeordneten Lücken zwischen den Antriebsriemen 61, 62, 63 gegenüberliegen.
    Die Achse 75 mit den fest auf ihr sitzenden Gegenrollen 71, 72, 73 ist drehbar an den freien Enden 762 eines entsprechend gestalteten Doppeltraghebels 76 gelagert, der wiederum mit seinen anderen Enden 763 federnd drehbar auf einer angetriebenen Achse 761 gelagert ist, siehe auch Fig. 6.
    Auf diese Weise kann der Doppeltraghebel 76 mit seinen freien Enden 762 auf die Antriebsriemenkombination 6 zu und von dieser wieder weg geschwenkt werden.
    Der Doppeltraghebel 76 ist außerdem an den auf der Achse 761 gelagerten Enden 763 mit einer Nase 7631 versehen, die im Schwenkbereich eines Nockens 781 liegt.
    Der Nocken 781 ist Bestandteil einer Arretiervorrichtung 78, die von Hand mittels eines Hebels 782 betätigbar ist. Der Nocken 781 ist gemeinsam mit dem Hebel 782 auf einer drehbaren Achse 783 befestigt ist. Die Arretiervorrichtung 78 dient zum Abschwenken und Arretieren des Doppeltraghebels 76 im abgeschwenkten Zustand.
    Das Auswurfwalzenpaar 9 besteht aus einer angetriebenen Auswurfwalze 91 und einer abgetriebenen Auswurfwalze 92.
    Die angetriebene Auswurfwalze 91 ist auf einer drehbaren Achse 911 hinter der hinteren Führungsplatte 1 befestigt und ragt an ihrem Umfang durch eine zugeordnete Öffnung 16 in der Führungsplatte 1, siehe auch Fig. 3 und 4.
    Die abgetriebene Auswurfwalze 92 ist gleichfalls auf einer drehbaren Achse 921 befestigt, die wiederum auf einem drehbar federnd gelagerten Traghebel 93 gelagert ist. Der Traghebel 93 ist auf einer Achse 931 gelagert und gelenkig über eine Koppelstange 784 mit der Achse 783 der Arretiervorrichtung 78 verbunden. Damit wird eine gleichzeitige Außerfunktionssetzung und Arretierung zusammen mit den Gegenrollen 71, 72, 73 bei entsprechender Betätigung des Hebels 782 erreicht, siehe auch Fig. 3 und 4.
    Die abgetriebene Auswurfwalze 92 ist um mehr als die größte Höhe der Umschlagklappen der Briefe A kürzer als die angetriebene Auswurfwalze 91 und zu letzterer obenbündig angeordnet. Dadurch werden ein vorzeitiges Schließen der Briefe durch das Auswurfwalzenpaar 9 mit der Gefahr der Tütenbildung an den Umschlagklappen vermieden.
    The letters A are arranged as a stack with the edge of their envelope flap standing on the lower guide plate 2 between a pressure bracket 21 and the rear guide plate 1.
    The pressure bracket 21 is pivoted and lockable from an operating position to a rest position and vice versa.
    In the operating position shown here, the pressure bracket 21 assumes an orthogonal position to the lower guide plate 2 and is arranged to be displaceable towards and away from the rear guide plate 1 under the influence of a spring (not shown).
    In the rest position, the pressure bracket 21 assumes a horizontal position in an adapted recess of the lower guide plate 2 and finally flush with the latter. In this position, the pressure bracket 21 is locked, see also FIG. 2.
    By means of two drive roller combinations 3, 4, the letters A are slid along the rear guide plate 1 one by one from the pre-separation area I into the separation area II.
    The drive roller combinations 3, 4 are arranged parallel to each other in contours and at the same height as the lower guide plate 2 and, due to their special design, as described below, cause the stack of letters to be shaken.
    According to FIG. 2, the first drive roller combination 3 consists of a lower first drive roller 31 with projections 311 and an upper drive roller 32 with projections 321, both of which are arranged at a distance from one another on a common axis 33, identical to the contours, see also FIGS. 3 and 4 ,
    The drive roller 31 projects through an opening 11 and the drive roller 32 projects through an opening 12 in the rear guide plate 1.
    The second drive roller combination 4 consists of a first lower drive roller 41 with projections 411 and an upper second drive roller 42 without projections, which is designed as a smooth spacer roller. Both drive rollers 41, 42 are likewise arranged at a distance from one another on a common axis 43, the top contour of the second drive roller 42 matching the envelope circle of the first drive roller 41.
    The drive roller 41 protrudes through an opening 13 and the drive roller 42 protrudes through an opening 14 in the rear guide plate 1.
    The length of the lower drive rollers 31, 41 is adapted to the height of the smallest conventional letter formats. The lower drive rollers 31, 41 are longer than the upper drive rollers 32, 42.
    The distance between the lower and upper drive rollers 31, 41, 32, 42 is selected so that the largest usual letter formats are still recorded in the upper part.
    The projections 311, 321, 411 extend parallel to the axis of rotation over the full length of the roll and consist of interchangeable cylindrical shaped parts, preferably made of polyurethane. Material identities exist for the projections 311 and 321 of the drive rollers 31, 32 of the first drive carriage combination 3, in particular both have the same coefficient of friction.
    The material for the projections 411 of the lower drive roller 41 of the second drive roller combination 4 is selected so that the coefficient of friction is smaller than that of the predecessors.
    The upper drive roller 42, which is designed as a smooth spacer roller, consists of a relatively hard engineering plastic, for example polyoxymethylene, which is also expediently used for the other roller base bodies.
    When the drive roller combinations 3, 4 rotate, the stack of letters is shaken once by the projections 311, 321, 411 of the drive rollers 31, 32, 41 and, on the other hand, the letters A are individually pushed sideways according to the coefficient of friction.
    Since the projections 311, 321 have a greater coefficient of friction than the following ones, the initial speed of the lateral movement is also determined by the former. The projections 411 of the lower drive roller 41 only support the movement and the upper drive roller 42 primarily serves to reduce friction and distance.
    In the separating area II, the individual letter A is passed by means of a drive belt combination 6 and a driven counter-roller combination 7 adapted to this and a sliding lever combination 77 upstream of the letter transport direction past a sensor 10 for letter detection to a pair of ejection rollers 9, see also FIGS. 3, 5 and 6.
    The sensor 10 is arranged in the print carrier transport direction immediately after the counter roller combination 7.
    When the beginning of the letter is recognized by the sensor 10, a signal is generated by the sensor 10, which serves to switch the drive roller combinations 3, 4 from drive to idle.
    At the end of the letter, the sensor 10 accordingly generates a signal for switching from idle to drive.
    In this way it is achieved that the next letter A is only pushed out of the investment or pre-separation area I into the separation area II when the current letter A has left it. This prevents the formation of jams.
    The drive belt combination 6 has three identical drive belts 61, 62, 63, which are arranged equidistantly above one another and protrude through assigned openings 15 in the rear guide plate 1, see also FIG. 5.
    The counter roller combination 7 has, as a counterpart to the drive belt combination 6, three counter rollers 71, 72, 73 which are arranged equidistantly on an axis 75 in such a way that the top counter roller 71 is level above the top drive belt 61 and the other two counter rollers 72, 73 den associated gaps between the drive belts 61, 62, 63 are opposite.
    The axle 75 with the counter rollers 71, 72, 73 firmly seated on it is rotatably mounted on the free ends 762 of a correspondingly designed double support lever 76, which in turn is resiliently rotatably mounted on a driven axle 761 with its other ends 763, see also FIG. 6th
    In this way, the double support lever 76 with its free ends 762 can be pivoted towards and away from the drive belt combination 6.
    The double support lever 76 is also provided at the ends 763 mounted on the axle 761 with a nose 7631 which lies in the pivoting range of a cam 781.
    The cam 781 is part of a locking device 78 which can be actuated manually by means of a lever 782. The cam 781 is fastened together with the lever 782 on a rotatable axis 783. The locking device 78 is used to pivot and lock the double support lever 76 in the pivoted state.
    The ejection roller pair 9 consists of a driven ejection roller 91 and an driven ejection roller 92.
    The driven ejection roller 91 is fastened on a rotatable axis 911 behind the rear guide plate 1 and protrudes on its circumference through an associated opening 16 in the guide plate 1, see also FIGS. 3 and 4.
    The driven ejection roller 92 is also fastened on a rotatable axis 921, which in turn is mounted on a rotatably spring-mounted support lever 93. The support lever 93 is mounted on an axis 931 and is articulated via a coupling rod 784 to the axis 783 of the locking device 78. A simultaneous deactivation and locking together with the counter rollers 71, 72, 73 is thus achieved when the lever 782 is actuated accordingly, see also FIGS. 3 and 4.
    The driven ejection roller 92 is shorter than the driven ejection roller 91 by more than the greatest height of the cover flaps of the letters A and is arranged flush with the latter. This prevents the letters from being closed prematurely by the ejection roller pair 9 with the risk of bags forming on the envelope flaps.

    In der Draufsicht gemäß Fig. 3 sind ein erster Motor 54 für den Antrieb der Antriebswalzenkombinationen 3, 4, ein zweiter Motor 84 für den Antrieb der Antriebsriemenkombination 6, der Gegenrollenkombination 7 sowie des Auswurfwalzenpaares 9 und die Gleithebelkombination 77 erkennbar.
    In Fig. 4 sind die Verbindungen zwischen den Motoren 54, 84 und den Antriebseinrichtungen für die Briefe A dargestellt. Zu diesem Zweck wurde eine perspektivische Ansicht von unten gewählt 8 und um 90°nach hinten gedreht.
    Beim gemeinsamen Antrieb 5 für die Antriebswalzenkombinationen 3, 4 ist ein Ritzel 541 auf der Motorachse des ersten Motors 54 über einen Zahnriemen 57 mit einem Zwischenrad 56 gekoppelt, das drehbeweglich auf einer starren Achse 561 angeordnet ist. Das Zwischenrad 56 ist weiterhin über einen Zahnriemen 55 mit einem Ritzel 52 verbunden, das fest auf der gemeinsamen, drehbaren Achse 43 der zweiten Antriebswalzenkombination 4 angeordnet ist. Das Ritzel 52 ist über einen Zahnriemen 53 mit einem Ritzel 51 verbunden, das gleichfalls fest auf der gemeinsamen, drehbaren Achse 33 der ersten Antriebswalzenkombination 3 angeordnet ist.
    Das Ritzel 51 und das Ritzel 52 sind mit einem Freilauf ausgestattet, so daß eine Drehung der Antriebswaizenkombinationen 3, 4 bei abgeschattetem Motor 54 noch möglich ist, wenn die Reibung zwischen Brief A und Antriebswalzen 31, 32, 41, 42 ausreicht. Dieser Fall könnte eintreten, wenn ein Brief von der Antriebsriemenkombination 6 und der Gegenrollenkombination 7 gerade erfaßt ist und noch an mindestens einer Walzenkombination 3, 4 anliegt. Der nächstfolgende Brief A kann erst wieder bei eingeschaltetem Motor 54 bewegt werden.
    Für den gemeinsamen Antrieb 8 für die Antriebsriemenkombination 6, die Gegenrollenkombination 7, die Gleithebelkombination 77 und die angetriebene Auswurfwalze 91 ist ein zweiter Motor 84 vorgesehen, auf dessen Motorachse ein Ritzel 841 sitzt, das über einen Zahnriemen 871 mit einem Zwischenrad 87 gekoppelt ist, das gemeinsam mit einer Antriebsräderkombination 64 fest auf einer drehbeweglichen Achse 644 angeordnet ist, siehe auch Fig. 5.
    Das Zwischenrad 87 ist weiterhin über einen Zahnriemen 831 mit einem Antriebsritzel 83 verbunden, das drehbar auf einer festen Achse 832 angeordnet ist.
    Das Antriebsritzel 83 ist andererseits einmal über einen Zahnriemen 86 mit einem Antriebsritzel 82 und zum anderen über einen Zahnriemen 89 mit einem Ritzel 88 gekoppelt.
    Das Antriebsritzel 82 ist fest auf einer drehbeweglichen Achse 761 gemeinsam mit der Gegenrollenkombination 7 angeordnet, siehe auch Fig. 6.
    Das Ritzel 88 ist fest auf der drehbeweglichen Achse 911 gemeinsam mit der angetriebenen Auswurfwalze 91 angeordnet.
    3 shows a first motor 54 for driving the drive roller combinations 3, 4, a second motor 84 for driving the drive belt combination 6, the counter roller combination 7 and the ejection roller pair 9 and the slide lever combination 77.
    4 shows the connections between the motors 54, 84 and the drive devices for the letters A. For this purpose a perspective view from below was chosen 8 and rotated 90 ° backwards.
    In the case of the common drive 5 for the drive roller combinations 3, 4, a pinion 541 on the motor axis of the first motor 54 is coupled via a toothed belt 57 to an intermediate wheel 56 which is arranged on a rigid axis 561 so as to be rotatable. The intermediate wheel 56 is also connected via a toothed belt 55 to a pinion 52, which is fixedly arranged on the common, rotatable axis 43 of the second drive roller combination 4. The pinion 52 is connected via a toothed belt 53 to a pinion 51, which is likewise fixedly arranged on the common, rotatable axis 33 of the first drive roller combination 3.
    The pinion 51 and the pinion 52 are equipped with a freewheel, so that a rotation of the drive roller combinations 3, 4 is still possible with the motor 54 shaded if the friction between letter A and drive rollers 31, 32, 41, 42 is sufficient. This could occur if a letter has just been picked up by the drive belt combination 6 and the counter roller combination 7 and is still applied to at least one roller combination 3, 4. The next letter A can only be moved again when the engine 54 is switched on.
    For the common drive 8 for the drive belt combination 6, the counter roller combination 7, the slide lever combination 77 and the driven ejection roller 91, a second motor 84 is provided, on the motor axis of which a pinion 841 is seated, which is coupled via a toothed belt 871 to an idler gear 87 which is fixedly arranged together with a drive wheel combination 64 on a rotatable axis 644, see also FIG. 5.
    The intermediate wheel 87 is also connected via a toothed belt 831 to a drive pinion 83 which is rotatably arranged on a fixed axis 832.
    On the other hand, the drive pinion 83 is coupled to a drive pinion 82 via a toothed belt 86 and secondly to a pinion 88 via a toothed belt 89.
    The drive pinion 82 is fixedly arranged on a rotatable axis 761 together with the counter roller combination 7, see also FIG. 6.
    The pinion 88 is fixedly arranged on the rotatable axis 911 together with the driven ejection roller 91.

    Gemäß Fig. 5 weist die Antriebsriemenkombination 6 außer den drei Antriebsriemen 61, 62, 63 einen u-förmigen Tragrahmen 67 auf, in dem die Achse 644 sowie eine Achse 654 und eine Achse 68 drehbar gelagert sind. Auf der Achse 644 sind die den Antriebsriemen 61, 62, 63 zugeordneten Antriebsräder 641, 642, 643 befestigt. Auf der Achse 654 sind die entsprechenden Umlenkräder 651, 652, 653 befestigt. Auf der Achse 68 sind entsprechend drei Stützräder 66 befestigt, die eine gleichmäßige Anlage der Antriebsriemen 61, 62, 63 an dem Brief A sichern sollen. Alle vorgenannten Räder sind als Pendant zu den Antriebsriemen 61, 62, 63 gezahnt.5, the drive belt combination 6 except the three Drive belt 61, 62, 63 on a U-shaped support frame 67 in which axis 644 and axis 654 and axis 68 are rotatable are stored. On the axis 644 are the drive belts 61, 62, 63 assigned drive wheels 641, 642, 643 attached. On the move 654, the corresponding deflection wheels 651, 652, 653 are attached. On the axis 68 are correspondingly attached to three support wheels 66, one uniform application of the drive belt 61, 62, 63 to the letter A should secure. All of the aforementioned wheels are counterparts to the drive belt 61, 62, 63 toothed.

    Gemäß Fig. 6 ist der Doppeltraghebel 76 für die Gegenrollen 71, 72, 73 drehbeweglich gegen eine Feder 79 gespannt auf der Achse 761 gelagert. Außerdem ist die Gleithebetkombination 77 in Form eines zweiarmigen Hebels gegen eine Feder 771 gespannt über eine Gleitreibungskupplung auf der Achse 761 gelagert. Schließlich ist noch ein Übertragungsritzel 821 auf der Achse 761 befestigt, das von dem Antriebsritzel 82 über die Achse 761 angetrieben wird. Die Drehbewegung des Übertragungsritzels 821 wird über eine Zahnriemen 85 auf ein Ritzel 81 übertragen, das auf der drehbeweglichen Achse 75 gemeinsam mit den Gegenrollen 71, 72 ,73 befestigt ist. Die Achse 75 ist drehbeweglich an den freien Enden 762 des Doppeltraghebels 76 gelagert.6 is the double support lever 76 for the counter rollers 71, 72, 73 rotatable against a spring 79 on the axis 761 stored. In addition, the sliding lever combination 77 is in the form of a two-armed lever against a spring 771 stretched over a Sliding friction clutch mounted on axis 761. Finally is a transmission pinion 821 fixed on the axis 761 by the Drive pinion 82 is driven via the axis 761. The rotary motion of the transmission pinion 821 is on a toothed belt 85 a pinion 81 transmitted, which on the rotatable axis 75th is fixed together with the counter rollers 71, 72, 73. The axis 75 is rotatable at the free ends 762 of the double support lever 76 stored.

    Wie leicht erkennbar ist, wäre für den flach liegenden Druckträgertransport lediglich eine entsprechende Drehung der vorstehend beschriebenen Vorrichtung erforderlich.As can be easily seen, it would be for flat-lying print carrier transport only a corresponding rotation of the one described above Device required.

    Claims (22)

    1. An arrangement for singularizing print media (A), in particular letters, that are arranged as a stack standing with one edge on a lower guide plate (2) between a spring-mounted pressure clip (21) and driving rollers (31, 32, 41, 42), wherein the driving rollers (31, 32, 41, 42) jut with their cylinder-shaped covering surfaces out through openings (11, 12, 13, 14) in a guide plate (1), and wherein the print media (A) are transported individually away in lateral direction,
      characterized in that there is provided a pre-singularization area (I) with driving roller combinations (3, 4) composed of subdivided driving rollers (31, 32, 41, 42) with different coefficients of friction and of a drive (5) with free-wheel;
      that there is moreover provided a singularization area (II) with elements (6, 7, 77) for singularization and a sensor (10) for print media detection;
      that the sensor (10) is arranged in the area of the elements (6, 7, 77) for singularization and is electrically linked to drive (5) for the driving roller combinations (3, 4) in such a manner that drive (5) is switched to free-wheeling upon print media start detection and is switched on upon print media end detection.
    2. An arrangement according to claim 1, characterized in that there is provided a joint separate drive (5) with free-wheel for the driving roller combinations (3, 4).
    3. An arrangement according to claim 1, characterized in that there is provided a joint separate drive (8) for the elements (6, 7, 77) for singularization and an ejection roller pair (9) on the output side.
    4. An arrangement according to claim 1, characterized in that the elements (6, 7, 77) for singularization are composed of a driving belt combination (6), a driven counter-roller combination (7) adapted to it and a sliding lever combination (77) arranged in front and also adapted to it, and that the sensor (10) is located in the area of the counter-roller combination (7).
    5. An arrangement according to claim 1, characterized in that a first driving roller combination (3) is composed of a fist driving roller (31) and a second driving roller (32) that are arranged in a distance and one above the other on a joint axle (33) and jut out through assigned openings (11, 12) in the rear guide plate (1);
      that the fist driving roller (31) is arranged below and that its length is adapted to the height of the smallest usual letter sizes;
      that the distance to the shorter upper driving roller (32) is adapted according to the height of the biggest usual letter sizes; and
      that both driving rollers (31, 32) are provided, identically on their outer contours, with at least one projection (311, 321) extending over the length of the rollers in parallel to the axis of rotation, the projections being made of the same material.
    6. An arrangement according to claim 1, characterized in that a second driving roller combination (4) is composed of a fist driving roller (41) and a second driving roller (42) that are arranged in a distance and one above the other on a joint axle (43) and jut out through assigned openings (13, 14) in the rear guide plate (1);
      that the fist driving roller (41) is arranged below and that its length is adapted to the height of the smallest letter sizes;
      that the distance to the shorter upper driving roller (42) is adapted according to the height of the biggest usual letter sizes; and
      that the first driving roller (41) is provided, on its outer contour, with at least one projection (411) extending over the length of the roller in parallel to the axis of rotation; and
      that the second driving roller (42) is an even distance roller having an enveloping circle identical with that of the first driving roller (41).
    7. An arrangement according to claims 1 and 5 to 6, characterized in that the projections (311, 321) in the first driving roller combination (3) are made of replaceable molded parts of the same material, preferably of polyurethane, and with the same friction coefficient and that they have a higher friction coefficient than the projection of the first driving roller (41) of the second roller combination (4) that is also made of a replaceable molded part, preferably of polyurethane.
    8. An arrangement according to claim 6, characterized in that the second driving roller (42) is made of a relatively hard technical synthetic material, such as polyoxymethylene.
    9. An arrangement according to claims 1 and 5 to 6, characterized in that the driving roller combinations (3, 4) are arranged in a contour-parallel manner.
    10. An arrangement according to claims 1 and 4, characterized in that the driving belt combination (6) has identical driving belts (61, 62, 63) arranger equidistantly one on top of the other that jut out through assigned openings (15) in the rear guide plate (1).
    11. An arrangement according to claim 4, characterized in that the counter-roller combination (7) is arranged opposite the driving belt combination (6) and comprises identical counter-rollers (71, 72, 73) arranged equidistantly one on top of the other on a rotatable axle (75).
    12. An arrangement according to claim 4, characterized in that the sliding lever combination (77) consists of a two-armed lever.
    13. An arrangement according to claims 10 to 12, characterized in that the counter-rollers (71, 72, 73) are arranged opposite the gaps between the driving belts (61, 62, 63) or on their outside, respectively; and
      that the sliding lever combination (77) is arranged with the free arms pointing against the direction of letter transport before the counter-rollers (72, 73) opposite the gaps between the driving belts (61, 62, 63).
    14. An arrangement according to claim 10, characterized in that the driving belts (61, 62, 63) are arranged equidistantly on driving wheels (641, 642, 643) of a driving wheel combination (64) and deflection wheels (651, 652, 653) of an axle-parallel deflection wheel combination (65); and that, if required, between the latter two, there are provided plain free-wheeling supporting wheels (66) for the driving belts (61, 62, 63).
    15. An arrangement according to claims 10 and 14, characterized in that the driving belts (61, 62, 63) preferably have the form of toothed belts and accordingly the driving wheels (641, 642, 643) and also the deflection wheels (651, 652, 653) have the form of toothed wheels,
      that the driving wheels (641, 642, 643) are fixed on a rotatable axle (644); and
      that the deflection wheels (651, 652, 653) are fixed on a rotatable axle (654), too.
    16. An arrangement according to claims 11 to 12, characterized in that the axle (75) with the counter-rollers (71, 72, 73) firmly fixed on it is rotatably supported on the free ends (762) of a double supporting lever (76) that, with its other ends (763) is spring-mounted on an axle (761) rotatably towards the drive belt combination (6) and away from it;
      that the double supporting lever (76), on the fixed ends (763), is moreover provided with a nose (7631) that is located in the swiveling area of a cam (781) for swinging and locking the double supporting lever (76); and
      that the sliding lever combination (77) is arranged on the same axle (761) as the double supporting lever (76) and is swung by means of a sliding friction coupling in direction of the driving belt combination (6).
    17. An arrangement according to claim 16, characterized in that the cam (781) is part of a locking device (78) to be operated manually by means of a lever (782) that is fixed, together with the cam (781), on a rotating axle (783).
    18. An arrangement according to claims 1 and 14, characterized in that the ejection roller pair (9) is composed of a driving ejection roller (91) fixed on a rotatable axle (911) and of a driven ejection roller (92) fixed on a rotatable axle (921) that is supported by a rotatably spring-mounted supporting lever (93) that is pivotally connected with the locking device (78) though a coupling rod (784) in order to a achieve a simultaneous function-stopping and locking with the counter-rollers (71, 72, 73).
    19. An arrangement according to claim 18, characterized in that the driven ejection roller (92) is shorter by more than the biggest height of envelope flaps of letters (A) than the driving ejection roller (91) and that its upper edge is arranged level with the upper edge of the latter.
    20. An arrangement according to claim 4, characterized in that the sensor (10) is arranged directly after the counter-roller combination (7) in the direction of the transport of the print medium.
    21. An arrangement according to claims 1, 2 and 5 to 6, characterized by the following characteristics:
      the joint drive (5) for the driving roller combinations (3, 4) has a first motor (54) with a pinion (541) on the motor shaft that is coupled, through a toothed belt (57), with an intermediate wheel (56) that is rotatably mounted on a rigid axle (561);
      the intermediate wheel (56) is coupled, through a toothed belt (55) with a pinion (52) that is rigidly mounted on the joint rotatable axle (43) of the second driving roller combination (4);
      the pinion (52) is coupled, through another toothed belt (53) with a pinion (51) that is rigidly mounted on the joint rotatable axle (33) of the first driving roller combination (3);
      pinion (51) and pinion (52) are equipped with free-wheel.
    22. An arrangement according to claims 1, 3, 10 to 11, 14 to 16 and 18, characterized by the following characteristics:
      the joint drive (8) for the driving roller combination (6), the counter-roller combination (7) plus sliding lever combination (77) and the ejection roller pair (9) has a second motor (84) with a pinion (841) on the motor shaft that is coupled, through a toothed belt (871), with an intermediate wheel (87) that is rigidly mounted on a rotatable axle (644) for the driving wheels (641, 642, 643) of the driving belts (61, 62, 63);
      the intermediate wheel (87) is coupled, through another toothed belt (831), with a driving pinion (83) that is rotatably fixed on a rigid axle (832);
      the driving pinion (83) is coupled, through another toothed belt (86), with a driving pinion (82) that is rigidly fixed on a rotatable axle (761) for the double supporting lever (76) for the counter-roller combination (7) and the sliding lever combination (77);
      the driving pinion (83) is moreover coupled, through a toothed belt (89), with a pinion (88) that is mounted, together with the driving ejection roller (91), rigidly on the rotatable axle (911);
      The double supporting lever (76) is rotatably tensioned against a spring (79) on the axle (761) and supports, on its free ends (762), a rotatable axle (75) on which there are fixed a pinion (81) and the counter-rollers (71, 72, 73);
      the sliding lever combination is tensioned against a spring (771) in the form of a two-arm lever and is rotatably mounted by a friction coupling on axle (761);
      on axle (761), there is moreover fixed a transmission pinion (821) that is coupled, through a toothed belt (89), with pinion (81);
      the driving wheels (641, 642, 643) are rigidly mounted on the rotatable axle (644) and are connected, through the assigned driving belts (61, 62, 63) with the deflection wheels (651, 652, 653), wherein support wheels (66) are provided between them that are mounted on a rotatable axle (68), all three axles (644, 654, 68) being supported by an u-shaped supporting frame.
    EP99250259A 1998-08-05 1999-07-30 Apparatus for the separation of documents Expired - Lifetime EP0978466B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19836235 1998-08-05
    DE19836235A DE19836235C2 (en) 1998-08-05 1998-08-05 Device for separating print media

    Publications (3)

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    EP0978466A2 EP0978466A2 (en) 2000-02-09
    EP0978466A3 EP0978466A3 (en) 2000-12-13
    EP0978466B1 true EP0978466B1 (en) 2004-02-18

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    EP99250259A Expired - Lifetime EP0978466B1 (en) 1998-08-05 1999-07-30 Apparatus for the separation of documents

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    US (1) US6241235B1 (en)
    EP (1) EP0978466B1 (en)
    DE (2) DE19836235C2 (en)

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    Also Published As

    Publication number Publication date
    EP0978466A3 (en) 2000-12-13
    DE19836235A1 (en) 2000-02-10
    EP0978466A2 (en) 2000-02-09
    DE19836235C2 (en) 2001-04-19
    US6241235B1 (en) 2001-06-05
    DE59908558D1 (en) 2004-03-25

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