EP1858789B1 - Device for separating overlapping, flat items of mail - Google Patents

Device for separating overlapping, flat items of mail Download PDF

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Publication number
EP1858789B1
EP1858789B1 EP06706454A EP06706454A EP1858789B1 EP 1858789 B1 EP1858789 B1 EP 1858789B1 EP 06706454 A EP06706454 A EP 06706454A EP 06706454 A EP06706454 A EP 06706454A EP 1858789 B1 EP1858789 B1 EP 1858789B1
Authority
EP
European Patent Office
Prior art keywords
retaining strip
belt
pressure
coupling lever
longitudinal direction
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.)
Not-in-force
Application number
EP06706454A
Other languages
German (de)
French (fr)
Other versions
EP1858789A1 (en
Inventor
Michael Schwarzbauer
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.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1858789A1 publication Critical patent/EP1858789A1/en
Application granted granted Critical
Publication of EP1858789B1 publication Critical patent/EP1858789B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/52—Friction retainers acting on under or rear side of article being separated
    • B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
    • B65H3/5215—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned under articles separated from the top of the pile
    • B65H3/5223—Retainers of the pad-type, e.g. friction pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/04—Endless-belt separators
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/321—Standing on edge
    • 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
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/445—Moving, forwarding, guiding material stream of articles separated from each other
    • B65H2301/4451—Moving, forwarding, guiding material stream of articles separated from each other forming a stream or streams of separated articles
    • B65H2301/44514—Separating superposed articles

Definitions

  • the invention relates to a device for separating overlapping flat items according to the preamble of claim 1.
  • a separation device is described with a plurality of separation stages in a row for separating flat broadcasts in a standing position, which has a local retention band over the entire length with strip-shaped retaining elements, which are spaced above each other, offset relative to the trigger belt and offset in height to the trigger belt on the retaining band ,
  • pressure elements distributed over the length are provided which press with spring force from behind directly against the retaining band.
  • the pressure elements have at their ends An horrrollen with flanged wheels for holding the retaining band in height.
  • the restraining belt When passing a misshapen consignment, the restraining belt may shift inadvertently toward the pressure elements, so that the restraint belt may be damaged. Malfunctions and double deductions are the result. If such a fault occurs due to the jamming of several shipments, the pressure on the shipments must be removed and the operator then removes the jammed shipments. To do this, the transport path must be opened by moving the restraining strap backwards from its working position. There is a risk that the restraining strap releases from the pressure elements and thus is no longer guided in its position.
  • the invention is therefore an object of the invention to provide a device for separating overlapping flat broadcasts with a locally fixed retaining band and pressure elements that allows displacements of the retaining band in the longitudinal direction of the pressure elements in thick or bulky transmissions and even with the transport path open the leadership of Retaining strap on the pressure elements safely ensured.
  • the object is achieved by the features of claim 1.
  • elastic belt loops which are each guided over at the ends of a coupling lever extending in the longitudinal direction of the retaining belt rotatably mounted pressure rollers, each secured by a belt in the direction of approximately point-like connection.
  • the coupling lever is movably mounted via a pivot axis of the respective pressure element running perpendicular to the retaining band longitudinal direction and parallel to the retaining band.
  • the belt loops are advantageously performed under pretension on the pressure rollers.
  • the pressure element comprises a pivotally mounted on a rotational axis pressure lever, at one end of the pivot axis and at the other end engages a spring element and presses the end with the pivot axis in the direction of restraining.
  • a further spring-loaded pressure lever with coupling lever and pressure rollers is movably arranged on the respective axis of rotation.
  • the pressure rollers have outside the belt loops leading flanges, wherein the flanged wheels run in slots in the restraining belt.
  • a stagnant retaining band 1 is arranged, which has two narrow strip-shaped, raised contact surfaces 11 over the tape length.
  • the conveyor belt 6 and the contact surfaces 11 are offset in height to each other so that they can overlap in the rest position in the direction of the vector on the broadside broadside, without the friction surfaces in the absence of shipments 7.8 in the transport path touching each other and thereby wear out quickly. This can be generated even for very thin consignments 7.8 of the necessary contact pressure.
  • the force exerted by the retaining band 1 on the programs 7,8 contact pressure is generated by each mounted in a pivot point D2 Andruckhebel 5, at the side facing away from the retaining band 1 ends each a tension spring 9 engages.
  • elastic belt loops 2 are each secured with a narrow, vertical weld 10 in the longitudinal direction of the retaining band 1 (for each separation stage two).
  • Each belt loop 2 is guided under tension by means of two pinch rollers 3, which are rotatably mounted on the ends of a coupling lever 4.
  • the flanged wheels run in slots of the restraining belt 1.
  • On the other side of the restraining belt 1 between the slots is the upper raised contact surface 11, which also does not affect the flanged wheels negative.
  • the coupling lever 4 in turn is movably mounted approximately centrally on the free end of the pressure lever 5 via a rotary bearing D1.
  • the pressure lever 5 is pressed over the tension spring 9 in the direction of restraint belt 1.
  • the retaining band 1 is deflected away from the transport belts 5 in accordance with the mailing thicknesses.
  • the pressure levers 5 are thus positively coupled to the retaining band 1 and each occurring during the passage of the programs 7,8 longitudinal displacements of the retaining band 1 against the pressure levers 5 are compensated by the belt loops 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

u Each press element comprises a coupling lever (4), press rollers (3) and an elastics strap-loop (2). The strap loop is located at rear side of a restraint band (1) via a point-shaped connection (10) fixed to the restraint band. The coupling lever is movably mounted perpendicular to the restraint band~s longitudinal direction and parallel to the restraint band~s turning axis (D1). Each press element comprises a coupling lever (4), press rollers (3) and an elastics strap-loop (2). The strap loop is located at rear side of a restraint band (1) via a point-shaped connection (10) fixed to the restraint band. The coupling lever is movably mounted perpendicular to the restraint band~s longitudinal direction and parallel to the restraint band~s turning axis (D1). The restraint strap-loop may be pre-tensioned via the press roller. The press element may comprises a rotary axis (D2) turnably mounted on a press lever (5) which has, on one end, the turning axis and, on the other end, a spring element (9) with the end of the turning axis being pressed into the restraint band. There may be at least two narrow strip-like raised contact upper surfaces (11), with one of the contact upper surfaces being arranged around the width and height of the strap-loop, whilst the other contact upper surface is arranged around the height of further press rollers (13).

Description

Die Erfindung betrifft eine Vorrichtung zum Vereinzeln von überlappenden flachen Sendungen nach dem Oberbegriff des Anspruches 1.The invention relates to a device for separating overlapping flat items according to the preamble of claim 1.

In DE 103 50 352 B3 wird eine Vereinzelungsvorrichtung mit mehreren Vereinzelungsstufen hintereinander zum Vereinzeln flacher Sendungen in stehender Position beschrieben, die ein örtlich festes Rückhalteband über die gesamte Länge mit streifenförmigen Rückhalteelementen aufweist, welche sich beabstandet übereinander, gegenüber den Abzugsriemen und in der Höhe versetzt zu den Abzugsriemen auf dem Rückhalteband befinden. Um den notwendigen Anpressdruck der Rückhalteelemente des Rückhaltebandes auf die Sendungen zu erzeugen, sind über die Länge verteilt Andruckelemente vorgesehen, die mit Federkraft von hinten direkt gegen das Rückhalteband drücken. Die Andruckelemente besitzen an ihren Enden Andruckrollen mit Bordscheiben zum Halten des Rückhaltebandes in der Höhe. Beim Durchlauf einer unförmigen Sendung kann sich das Rückhaltband zu den Andruckelementen unzulässig verschieben, sodass das Rückhalteband beschädigt werden kann. Funktionsstörungen und Doppelabzüge sind dann die Folge. Tritt solch eine Störung durch Verklemmung mehrerer Sendungen auf, so muss der Druck auf die Sendungen aufgehoben werden und die Bedienkraft entfernt danach die verklemmten Sendungen. Dazu muss der Transportpfad geöffnet werden, indem das Rückhalteband aus seiner Arbeitsposition nach hinten weggefahren wird. Dabei besteht die Gefahr, dass sich das Rückhalteband von den Andruckelementen löst und somit nicht mehr in seiner Lage geführt ist.In DE 103 50 352 B3 a separation device is described with a plurality of separation stages in a row for separating flat broadcasts in a standing position, which has a local retention band over the entire length with strip-shaped retaining elements, which are spaced above each other, offset relative to the trigger belt and offset in height to the trigger belt on the retaining band , In order to generate the necessary contact pressure of the retaining elements of the retaining band on the programs, pressure elements distributed over the length are provided which press with spring force from behind directly against the retaining band. The pressure elements have at their ends Andruckrollen with flanged wheels for holding the retaining band in height. When passing a misshapen consignment, the restraining belt may shift inadvertently toward the pressure elements, so that the restraint belt may be damaged. Malfunctions and double deductions are the result. If such a fault occurs due to the jamming of several shipments, the pressure on the shipments must be removed and the operator then removes the jammed shipments. To do this, the transport path must be opened by moving the restraining strap backwards from its working position. There is a risk that the restraining strap releases from the pressure elements and thus is no longer guided in its position.

Bekannt wurde auch eine Vereinzelungsvorrichtung ( US 5 257 777 A ) mit einem örtlich festen Rückhalteband, streifenförmige Rückhalteelemente aufweisend, bei der der notwendige Anpressdruck durch die Bandspannung erzeugt wird. In DE 102 12 024 A1 wird eine Vereinzelungseinrichtung beschrieben, die zum Trennen von mehreren zusammenhängenden Stückgütern ein umlaufendes Band aufweist, wobei die Transportrichtung am Förderkanal zur Transportrichtung der Abzugsriemen entgegengesetzt ist. Zur Führung und Lagerung des Bandes zum Trennen sind mehrere elastisch gelagerte Andruckrollenvorrichtungen vorgesehen.Also known was a separating device ( US 5,257,777 A ) with a locally fixed restraining strap, strip-shaped retaining elements having, in which the necessary contact pressure is generated by the belt tension. In DE 102 12 024 A1 a separating device is described, which has for separating a plurality of contiguous piece goods a circulating belt, wherein the transport direction is opposite to the conveying channel to the transport direction of the trigger belt. For guiding and supporting the band for separating a plurality of elastically mounted Andruckrollenvorrichtungen are provided.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zum Vereinzeln von überlappenden flachen Sendungen mit einem örtlich festen Rückhalteband und Andruckelementen zu schaffen, die Verschiebungen des Rückhaltebandes in Längsrichtung an den Andruckelementen bei dicken oder unförmigen Sendungen erlaubt und die auch bei geöffnetem Transportpfad die Führung des Rückhaltebandes an den Andruckelementen sicher gewährleistet.The invention is therefore an object of the invention to provide a device for separating overlapping flat broadcasts with a locally fixed retaining band and pressure elements that allows displacements of the retaining band in the longitudinal direction of the pressure elements in thick or bulky transmissions and even with the transport path open the leadership of Retaining strap on the pressure elements safely ensured.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruches 1 gelöst.
Dabei sind auf der Rückseite des Rückhaltebandes elastische Riemenschlaufen, die jeweils über an den Enden eines in Längsrichtung des Rückhaltebandes verlaufenden Koppelhebels drehbar angebrachten Andruckrollen geführt sind, jeweils durch eine in Riemenlängsrichtung annähernd punktförmige Verbindung befestigt. Der Koppelhebel ist über eine senkrecht zur Rückhaltebandlängsrichtung und parallel zum Rückhalteband verlaufende Schwenkachse des jeweiligen Andruckelementes beweglich gelagert. Diese spezielle formschlüssige Verbindung des Rückhaltebandes mit den Andruckelementen erlaubt belastungsfreie Verschiebungen des Rückhaltebandes in Transportpfadrichtung und gewährleistet die Führung des Rückhaltebandes auch bei geöffnetem Transportpfad.According to the invention the object is achieved by the features of claim 1.
In this case, on the back of the restraining strap elastic belt loops, which are each guided over at the ends of a coupling lever extending in the longitudinal direction of the retaining belt rotatably mounted pressure rollers, each secured by a belt in the direction of approximately point-like connection. The coupling lever is movably mounted via a pivot axis of the respective pressure element running perpendicular to the retaining band longitudinal direction and parallel to the retaining band. This special positive connection of the retaining strap with the pressure elements allows load-free displacement of the retaining band in Transportpfadrichtung and ensures the leadership of the retaining band even with the transport path open.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen dargelegt.
Um eine definierte Führung des Rückhaltebandes sicherzustellen, sind die Riemenschlaufen vorteilhaft unter Vorspannung über die Andruckrollen geführt.Advantageous embodiments of the invention are set forth in the subclaims.
In order to ensure a defined guidance of the retaining band, the belt loops are advantageously performed under pretension on the pressure rollers.

Vorteilhaft hinsichtlich Aufwandsminimierung und Funktionssicherheit ist es, wenn das Andruckelement einen auf einer Drehachse schwenkbar gelagerten Andruckhebel umfasst, an dessen einem Ende sich die Schwenkachse befindet und an dessen anderem Ende ein Federelement angreift und das Ende mit der Schwenkachse in Richtung Rückhalteband drückt.
Damit der Andruck eines relativ breiten Rückhaltebandes über die gesamte Breite gewährleistet werden kann, ist es vorteilhaft, wenn auf der jeweiligen Drehachse ein weiterer mit Federkraft beaufschlagter Andruckhebel mit Koppelhebel und Andruckrollen beweglich angeordnet ist.It is advantageous in terms of effort minimization and reliability, if the pressure element comprises a pivotally mounted on a rotational axis pressure lever, at one end of the pivot axis and at the other end engages a spring element and presses the end with the pivot axis in the direction of restraining.
Thus, the pressure of a relatively wide retention band over the entire width can be ensured, it is advantageous if a further spring-loaded pressure lever with coupling lever and pressure rollers is movably arranged on the respective axis of rotation.

Zur Verbesserung des Rückstreifeffektes ist es vorteilhaft, wenn sich auf der Vorderseite und in Längsrichtung des Rückhaltebandes zwei schmale streifenförmige und erhabene Kontaktoberflächen, eine mit der Breite der Riemenschlaufen in ihrer Höhe und die andere in Höhe der anderen Andruckrollen dieser Drehachse befinden.To improve the Rückstreifeffektes it is advantageous if there are two narrow strip-shaped and raised contact surfaces on the front and in the longitudinal direction of the retaining band, one with the width of the belt loops in height and the other at the level of the other pinch rollers this axis of rotation.

Vorteilhaft ist es auch, wenn zur sicheren Führung des Rückhaltebandes die Andruckrollen außen die Riemenschlaufen führende Bordscheiben aufweisen, wobei die Bordscheiben in Schlitzen im Rückhalteband laufen.It is also advantageous if, for safe guidance of the restraining belt, the pressure rollers have outside the belt loops leading flanges, wherein the flanged wheels run in slots in the restraining belt.

Weiterhin ist es vorteilhaft, die Kontaktoberflächen auf dem Rückhalteband und die Transportriemen in der Höhe zueinander versetzt anzuordnen. Dadurch ist es möglich, dass auch auf sehr dünne Sendungen die Transportriemen und die Kontaktoberflächen des Rückhaltebandes einwirken, aber bei einer größeren Sendungslücke die Kontaktoberflächen und die Transportriemen nicht aneinander reiben.Furthermore, it is advantageous to arrange the contact surfaces on the retaining band and the transport belts offset in height from each other. As a result, it is possible for the transport belts and the contact surfaces of the restraining belt to act on very thin items as well, but for a larger one Transmission gap, the contact surfaces and the conveyor belts do not rub against each other.

Anschließend wird die Erfindung in einem Ausführungsbeispiel anhand der Zeichnung erläutert.Subsequently, the invention will be explained in an embodiment with reference to the drawing.

Dabei zeigen

FIG 1
eine schematische Draufsicht auf eine Vereinzelungsstufe mit zwei Andruckelementen,
FIG 2
eine Darstellung des Schnittes A-A aus FIG 1,
FIG 3
eine Darstellung des Schnittes B-B aus FIG 1.
Show
FIG. 1
a schematic plan view of a separation stage with two pressure elements,
FIG. 2
a representation of the section AA FIG. 1 .
FIG. 3
a representation of the section BB FIG. 1 ,

An dem Transportpfad befinden sich zu jeder Transportstufe an der einen Seite mehrere angetriebene, umlaufende Transportriemen 6 übereinander zum Transport und Beschleunigen der Sendungen 7,8 mittels Reibkraft. Auf der anderen Seite ist ein still stehendes Rückhalteband 1 angeordnet, das über die Bandlänge zwei schmale streifenförmige, erhabene Kontaktoberflächen 11 aufweist. Die Transportriemen 6 und die Kontaktoberflächen 11 sind in der Höhe zueinander versetzt, so dass sie in der Ruhestellung in Richtung des Vektors auf der Sendungsbreitseite überlappen können, ohne dass die Reibflächen bei fehlenden Sendungen 7,8 im Transportpfad einander berühren und dadurch schnell verschleißen. Damit kann auch für sehr dünne Sendungen 7,8 der nötige Anpressdruck erzeugt werden. Der durch das Rückhalteband 1 auf die Sendungen 7,8 ausgeübte Anpressdruck wird durch jeweils in einem Drehpunkt D2 gelagerte Andruckhebel 5 erzeugt, an deren von dem Rückhalteband 1 abgewandten Enden jeweils eine Zugfeder 9 angreift. Auf der Rückseite des Rückhaltebandes 1 sind elastische Riemenschlaufen 2 mit jeweils einer schmalen, vertikal verlaufenden Schweißnaht 10 in Längsrichtung des Rückhaltebandes 1 befestigt (für jede Vereinzelungsstufe zwei). Jede Riemenschlaufe 2 wird über zwei mit Bordscheiben versehene Andruckrollen 3, die an den Enden eines Koppelhebels 4 drehbar angebracht sind, unter Vorspannung geführt. Dabei laufen die Bordscheiben in Schlitzen des Rückhaltebandes 1. Auf der anderen Seite des Rückhaltebandes 1 zwischen den Schlitzen befindet sich die obere erhabene Kontaktoberfläche 11, wodurch sich auch die Bordscheiben nicht negativ auswirken. Der Koppelhebel 4 wiederum ist beweglich über ein Drehlager D1 annähernd mittig auf dem freien Ende des Andruckhebels 5 gelagert. Der Andruckhebel 5 wird dabei über die Zugfeder 9 in Richtung Rückhalteband 1 gedrückt. Beim Transport der Sendungen 7,8 durch den Transportpfad wird das Rückhalteband 1 entsprechend der Sendungsdicken von den Transportriemen 5 weg ausgelenkt. Dabei sind die Andruckhebel 5 also formschlüssig mit dem Rückhalteband 1 gekoppelt und jede beim Passieren der Sendungen 7,8 auftretenden Längsverschiebungen des Rückhaltebandes 1 gegenüber den Andruckhebeln 5 werden über die Riemenschlaufen 2 ausgeglichen. Die maximal erlaubte Längsverschiebung beträgt ±L-S/2 (L = Länge des Koppelhebels, S = Breite der Schweißnaht). Da das Rückhalteband 1 relativ breit ist, befindet sich zur Gewährleistung des notwendigen Andruckes über die gesamte Rückhaltebandbreite auf der Drehachse jedes Drehlagers D2 unterhalb des beschriebenen Koppelhebels 5 jeweils ein zweiter drehbar gelagerter Koppelhebel 12, an dem ebenfalls eine Zugfeder angreift. An den Enden dieses Koppelhebels 12 sind weitere Andruckrollen 13 drehbar befestigt, über die allerdings keine Riemenschlaufen laufen.At the transport path are located at each transport stage on one side a plurality of driven, circulating transport belt 6 one above the other for transporting and accelerating the programs 7.8 by means of friction. On the other side a stagnant retaining band 1 is arranged, which has two narrow strip-shaped, raised contact surfaces 11 over the tape length. The conveyor belt 6 and the contact surfaces 11 are offset in height to each other so that they can overlap in the rest position in the direction of the vector on the broadside broadside, without the friction surfaces in the absence of shipments 7.8 in the transport path touching each other and thereby wear out quickly. This can be generated even for very thin consignments 7.8 of the necessary contact pressure. The force exerted by the retaining band 1 on the programs 7,8 contact pressure is generated by each mounted in a pivot point D2 Andruckhebel 5, at the side facing away from the retaining band 1 ends each a tension spring 9 engages. On the back of the retaining band 1 elastic belt loops 2 are each secured with a narrow, vertical weld 10 in the longitudinal direction of the retaining band 1 (for each separation stage two). Each belt loop 2 is guided under tension by means of two pinch rollers 3, which are rotatably mounted on the ends of a coupling lever 4. In this case, the flanged wheels run in slots of the restraining belt 1. On the other side of the restraining belt 1 between the slots is the upper raised contact surface 11, which also does not affect the flanged wheels negative. The coupling lever 4 in turn is movably mounted approximately centrally on the free end of the pressure lever 5 via a rotary bearing D1. The pressure lever 5 is pressed over the tension spring 9 in the direction of restraint belt 1. When transporting the items 7, 8 through the transport path, the retaining band 1 is deflected away from the transport belts 5 in accordance with the mailing thicknesses. In this case, the pressure levers 5 are thus positively coupled to the retaining band 1 and each occurring during the passage of the programs 7,8 longitudinal displacements of the retaining band 1 against the pressure levers 5 are compensated by the belt loops 2. The maximum permitted longitudinal displacement is ± LS / 2 (L = length of the coupling lever, S = width of the weld). Since the retaining band 1 is relatively wide, there is to guarantee the necessary pressure over the entire retention band width on the axis of rotation of each pivot bearing D2 below the coupling lever 5 described in each case a second rotatably mounted coupling lever 12, which also acts on a tension spring. At the ends of this coupling lever 12 more pinch rollers 13 are rotatably mounted on the run but no belt loops.

Claims (7)

  1. Device for separating overlapping, flat items of mail (7, 8) in an upright position in a transport path with a number of separating sections featuring transport belts (6), with
    - a stationary retaining strip (1) running over the length of all separating sections being attached on the transport path on the side opposite the transport belt (6) operating on the mail items (7,8) with friction force.
    - and pressure elements for pressing the retaining strip (1) onto the transported mail items (7, 8), distributed over the length of the retaining strip (1) being provided,
    characterised in that,
    - each pressure element comprises a coupling lever (4), pressure rollers (3) and an elastic belt loop (2), with
    - the belt loops (2) being attached to the retaining strip (1) in each case to the back of the retaining strip (1) by an approximately point-type connection (10) in the longitudinal direction of the belt,
    - the belt loop (2) being guided via the rotationally-mounted pressure rollers (3) on the ends of the coupling lever (4) running in the longitudinal direction of the retaining strip (1),
    - and the coupling lever (4) being displaceably supported on a pivot axis (D1) running perpendicular to the longitudinal direction of the retaining band and parallel to the retaining strip (1).
  2. Device according to claim 1, characterised in that the belt loops (2) are guided under pre-tension over the pressure rollers (3).
  3. Device according to claim 1, characterised in that the pressure element includes a pressure lever (5) supported rotationally on an axis of rotation (D2), on one end of which the pivot axis (D1) is located and on the other end of which a spring element (9) engages and presses the end with the pivot axis (D1) in the direction of the retaining strip (1).
  4. Device according to claim 3, characterised in that, on the respective axis of rotation (D2) a further pressure lever (12) operating under spring force with a further coupling lever and further pressure rollers (13) is displaceably arranged.
  5. Device according to claim 4, characterised in that at least two narrow strip-form and raised contact surfaces (11) are located on the front and in the longitudinal direction of the retaining strip (1), with one of the contact surfaces (11) having the width of the belt loops (2) and being located at their height, and the other of the contact surfaces (11) being arranged at the height of the further pressure rollers (13).
  6. Device according to claim 5, characterised in that the pressure rollers (3) feature flanged wheels guiding the belt loops (2) on the outside, with the flanged wheels running in slots in the retaining strip (1).
  7. Device according to claim 5, characterised in that the contact surfaces (11) are arranged on the retaining strip (1) and the transport belts (6) are arranged offset in height from each other.
EP06706454A 2005-03-16 2006-01-27 Device for separating overlapping, flat items of mail Not-in-force EP1858789B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005012029A DE102005012029B3 (en) 2005-03-16 2005-03-16 Device for separating overlapping surface transmissions
PCT/EP2006/000733 WO2006097161A1 (en) 2005-03-16 2006-01-27 Device for separating overlapping, flat items of mail

Publications (2)

Publication Number Publication Date
EP1858789A1 EP1858789A1 (en) 2007-11-28
EP1858789B1 true EP1858789B1 (en) 2008-08-06

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EP06706454A Not-in-force EP1858789B1 (en) 2005-03-16 2006-01-27 Device for separating overlapping, flat items of mail

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US (1) US7703769B2 (en)
EP (1) EP1858789B1 (en)
AT (1) ATE403619T1 (en)
DE (2) DE102005012029B3 (en)
WO (1) WO2006097161A1 (en)

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WO2006097161A1 (en) 2006-09-21
US7703769B2 (en) 2010-04-27
DE102005012029B3 (en) 2006-07-13
US20080237971A1 (en) 2008-10-02
EP1858789A1 (en) 2007-11-28
ATE403619T1 (en) 2008-08-15
DE502006001283D1 (en) 2008-09-18

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