EP1419018A1 - Device for separating postal items according to thickness classes - Google Patents

Device for separating postal items according to thickness classes

Info

Publication number
EP1419018A1
EP1419018A1 EP02754487A EP02754487A EP1419018A1 EP 1419018 A1 EP1419018 A1 EP 1419018A1 EP 02754487 A EP02754487 A EP 02754487A EP 02754487 A EP02754487 A EP 02754487A EP 1419018 A1 EP1419018 A1 EP 1419018A1
Authority
EP
European Patent Office
Prior art keywords
conveyor belt
slat conveyor
lamella
lamellae
postal items
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.)
Withdrawn
Application number
EP02754487A
Other languages
German (de)
French (fr)
Inventor
Armin Zimmermann
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
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1419018A1 publication Critical patent/EP1419018A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C1/00—Measures preceding sorting according to destination
    • B07C1/10—Sorting according to size or flexibility
    • B07C1/16—Sorting according to thickness or stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/10—Screens in the form of endless moving bands
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/90—Sorting flat-type mail

Definitions

  • the invention relates to a device for separating mail items in thickness classes according to the preamble of claim 1.
  • Drum-shaped separators have long been known for automatically dividing incoming mail into different thickness classes. These have overlapping slats on their cylindrical frame that can be swiveled between two positions.
  • the drum which is open at the ends, is slightly inclined in its longitudinal axis to the horizontal (approx. 4 °).
  • the slats are inclined inwards in the direction of rotation of the drum to the tangential direction and can be swiveled between two inclinations divided by stops.
  • a spring element attached to the frame engages on each lamella in such a way that the lamella is pulled to the stop in the lower drum area, which limits the slight inclination, ie there are only narrow gaps between the lamellae, e.g. 6 mm, through which during the rotation when starting up in the lower part the correspondingly thin consignments slip and are caught and transported under the drum.
  • the thicker consignments which do not fit through this gap, remain in the drum and are transferred to its lower end in a helical movement due to the inclined position of the drum. ported to where they are collected or transported.
  • the invention is therefore based on the object of creating a low-cost device for separating flat mail items in thickness classes, which also allows the possibility of separation into more than two thickness classes with a small space requirement. According to the invention the object is achieved by the features of claim 1.
  • a slat conveyor belt Due to the rigid arrangement of the slats on two endless traction devices rotating on two deflection rollers, a slat conveyor belt is formed, the slats in the dream areas being inclined outwards at the same angle, so that gaps leading inwards are formed between them.
  • the slat conveyor belt is inclined relative to the horizontal in such a way that mail items that are transported on the lower part of the run that transports the mail items upwards can slide into the interior of the slat conveyor belt due to their gravity, if they are thinner than that Gap width are.
  • the sorted items slide onto a means of transport that transports these items laterally out of the slat conveyor belt.
  • the thicknesses of the consignments that are laterally transported out of the slat conveyor belts are smaller than the gap widths in the strand section. If consignments are jammed between the slats, they are released again at the deflections, since the slats rigidly attached to them are spread apart due to the curved path of the traction means. This device enables a compact and low-cost design.
  • FIG. 1 shows a schematic side view of a separation device with three separation stages.
  • the flat mail items 10 pass via a feed device 1, which can be designed both actively as a driven underfloor belt and passively as a slide, to the lower part of a strand of the mail items 10 transporting upwards, of a driven slat conveyor belt which is inclined upwards with respect to the horizontal is. So that the mail items 10 cannot slide down from the slat conveyor belt, there is a collecting plate 2, which is aligned perpendicular to the surface of the strand at the lower end of the strand.
  • the slat conveyor belt consists of two rotating, endless, guided over deflection rollers 4 and driven traction means 3, to which the slats are rigidly attached with their lateral ends with their longitudinal axes perpendicular to the direction of movement at an equal distance to the outside.
  • the slat conveyor belt is inclined upwards against the horizontal.
  • the inclination of the slats 5 in relation to the traction means 3 is chosen in accordance with the desired gap width and the inclination of the slat conveyor belt relative to the horizontal so that the correspondingly narrow consignments 10 can easily slide into the interior of the slat conveyor belt through the gaps formed between the slats 5 during transport upwards on the slats 5.
  • the way or the non-sorted mail items reach the third and last identical slat conveyor belt via the further guide plate 8 of this slat conveyor belt.
  • the mail items 11, 12, 13 sorted out in all three stages and transported away via the conveyor belts 7 arrive in a collecting container or are fed from three separate containers for further processing.
  • the mailings 10 that have not been sorted out are fed to a conveyor belt 9 via the further guide plate 8 of the last stage, or they are sorted into further thickness classes via further sorting stages (not shown) for greater thicknesses.

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  • Sorting Of Articles (AREA)

Abstract

The invention relates to a device for separating flat postal items according to thickness classes. A rigid system of overlapping lamellae (5) on two continuous traction mechanisms (3) revolving on two deflection rollers (4) provides a lamella-type conveyor belt. The lamellae (5), in the end zones of the belt, are inclined outward at the same angle, thereby forming inward-leading gaps in between them. The lamella-type conveyor belt is inclined with respect to the horizontal to such an extent that postal items (10) that are conveyed to the lower part of the belt transporting the postal items upwards can slide, due to their gravity, into the interior of the lamella-type conveyor belt through the downward leading gaps if they are thinner than the gap width. The sorted out postal items (11) slide onto a transport device (7) by means of rigid guides (6) in the interior of the lamella-type conveyor belt. Said transport device transports the postal items laterally outward from the lamella-type conveyor belt. At least one additional similar lamella-type conveyor belt is disposed at a slight distance behind the first conveyor belt, inclined at the same angle with respect to the horizontal.

Description

Beschreibungdescription
Vorrichtung zum Trennen von Sendungen in DickenklassenDevice for separating mail items in thickness classes
Die Erfindung betrifft eine Vorrichtung zum Trennen von Sendungen in Dickenklassen nach dem Oberbegriff des Anspruches 1.The invention relates to a device for separating mail items in thickness classes according to the preamble of claim 1.
Um die Sendungen beim Sortier- und Verteilprozess maschinell bearbeiten zu können, müssen sie beim Eingang in verschiedene Größenklassen separiert werden, da die Transport- und Sortierausrüstungen auf unterschiedliche Klassen zugeschnitten sind. So gibt es unterschiedliche Anlagen für Pakete und Päckchen, Großbriefe und Normalbriefe. Diese unterscheiden sich neben dem Format vor allem in den Dicken.In order to be able to machine the shipments during the sorting and distribution process, they have to be separated into different size classes as they are received, since the transport and sorting equipment is tailored to different classes. There are different systems for parcels and small packages, large letters and normal letters. In addition to the format, these differ primarily in the thicknesses.
Zum automatischen Unterteilen der ankommenden Sendungen in unterschiedliche Dickenklassen sind schon seit längerem trommeiförmige Separatoren bekannt. Diese besitzen an ihrem zy- lindrischen Rahmen überlappte Lamellen, die zwischen zwei Stellungen schwenkbar sind. Die an den Stirnseiten offene Trommel ist in ihrer Längsachse zur Horizontalen leicht geneigt (ca. 4°) .Drum-shaped separators have long been known for automatically dividing incoming mail into different thickness classes. These have overlapping slats on their cylindrical frame that can be swiveled between two positions. The drum, which is open at the ends, is slightly inclined in its longitudinal axis to the horizontal (approx. 4 °).
Die Lamellen sind in Drehrichtung der Trommel zur tangentia- len Richtung nach innen geneigt und zwischen zwei durch Anschläge begrenzte Neigesteilungen schwenkbar. An jeder Lamelle greift ein am Rahmen befestigtes Federelement so an, dass im unteren Trommelbereich die Lamelle an den Anschlag gezogen wird, der die geringe Neigung begrenzt, d.h. zwischen den Lamellen sind nur schmale Spalte, z.B. 6 mm, durch die während der Umdrehung beim Hochfahren im unteren Teil die entsprechend dünnen Sendungen rutschen und unterhalb der Trommel aufgefangen und abtransportiert werden. Die dickeren Sendun- gen, die nicht durch diese Spalte passen, verbleiben in der Trommel und werden in einer schraubenförmigen Bewegung infolge der Schräglage der Trommel, zu ihrem unteren Ende trans- portiert, wo sie gesammelt oder abtransportiert werden. Bei diesem Transport durch die Trommel kommt es vor, dass Sendungen sich in den Spalten zwischen den Lamellen verklemmen. Damit sie aus dieser Verklemmung wieder gelöst werden, sind die Lamellen schwenkbar gelagert. Im Laufe der Drehbewegung gelangen die Lamellen in den oberen Teil der Trommel. Dabei wird der Abstand des Masseschwerpunktes der Lamellen von ihrem Drehpunkt immer größer. Übersteigt das dadurch erzeugte Drehmoment das von dem Federelement erzeugte Drehmoment, so werden die Lamellen stärker geneigt (bis zum zweiten Anschlag) und die Spalte zwischen den Lamellen werden vergrößert. Damit werden in den Spalten eingeklemmte Sendungen frei und sie fallen auf den Grund der Trommel . Des weiteren fallen dicke Sendungen hinunter, die nicht in die Spalte passen, aber durch die Zentrifugalkraft relativ weit nach oben mitgenommen werden, bevor sie ebenfalls nach unten fallen (GB 21 00 691 A) . Harte und kompakte Sendungen (z.B. Päckchen) oder Sendungen schweren Inhalts mit verhältnismäßig großen und labilen Umschlägen prallen dabei mehrmals im unte- ren Bereich der Trommel auf und können sich und andere Sendungen zerstören oder beschädigen.The slats are inclined inwards in the direction of rotation of the drum to the tangential direction and can be swiveled between two inclinations divided by stops. A spring element attached to the frame engages on each lamella in such a way that the lamella is pulled to the stop in the lower drum area, which limits the slight inclination, ie there are only narrow gaps between the lamellae, e.g. 6 mm, through which during the rotation when starting up in the lower part the correspondingly thin consignments slip and are caught and transported under the drum. The thicker consignments, which do not fit through this gap, remain in the drum and are transferred to its lower end in a helical movement due to the inclined position of the drum. ported to where they are collected or transported. During this transport through the drum it can happen that mail items get jammed in the gaps between the slats. The slats are pivoted so that they can be released from this jam. In the course of the rotary movement, the slats reach the upper part of the drum. The distance between the center of gravity of the fins and their fulcrum is increasing. If the torque generated thereby exceeds the torque generated by the spring element, the slats are inclined more (up to the second stop) and the gaps between the slats are enlarged. This will free up items that are stuck in the columns and fall to the bottom of the drum. In addition, thick consignments fall down that do not fit into the column, but are carried relatively far upwards by the centrifugal force before they also fall down (GB 21 00 691 A). Hard and compact programs (eg parcels) or programs with heavy contents with relatively large and unstable envelopes hit the bottom of the drum several times and can destroy or damage themselves and other programs.
Um dies zu verhindern, wurde eine Lösung geschaffen, bei der in der sich drehenden Trommel zwei gespannte Membrane räum- lieh fest übereinander angeordnet sind, so dass die große Fallhöhe reduziert wird (DE 100 38 690 C 1) . Diese Trommeln zur Trennung in zwei Klassen sind aber sehr groß und aufwändig (beweglich gelagerte Lamellen) . Sollen die Sendungen in mehr als zwei Klassen getrennt werden, so müssen mehrere dieser großen Trommeln eingesetzt werden.In order to prevent this, a solution was created in which two tensioned membranes are spatially arranged one above the other in the rotating drum, so that the large fall height is reduced (DE 100 38 690 C 1). However, these drums for separation into two classes are very large and complex (movable slats). If the consignments are to be separated into more than two classes, several of these large drums must be used.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine aufwandsarme Vorrichtung zum Trennen von flachen Sendungen in Dickenklassen zu schaffen, die bei geringem Platzbedarf auch die Möglichkeit der Trennung in mehr als zwei Dickenklassen gestattet . Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruches 1 gelöst .The invention is therefore based on the object of creating a low-cost device for separating flat mail items in thickness classes, which also allows the possibility of separation into more than two thickness classes with a small space requirement. According to the invention the object is achieved by the features of claim 1.
Durch die starre Anordnung der Lamellen auf zwei endlosen auf zwei Umlenkrollen umlaufenden Zugmitteln wird ein Lamellenfόrderband gebildet, wobei die Lamellen in den Trumbereichen im gleichen Winkel nach außen geneigt sind, so dass zwischen ihnen nach innen führende Spalte entstehen. Das Lamellenförderband ist so gegenüber der Horizontalen ge- neigt, dass Sendungen, die auf den unteren Teil des die Sendungen nach oben transportierenden Trums befördert werden, auf Grund ihrer Schwerkraft durch die nach untenführenden Spalte ins Innere des Lamellenförderbandes gleiten können, falls sie dünner als die Spaltbreite sind. Mit Hilfe von fes- ten Führungen im Inneren des Lamellenförderbandes rutschen die aussortierten Sendungen auf ein Transportmittel, das diese Sendungen seitlich aus dem Lamellenförderband heraus transportiert . In geringem Abstand ist dahinter mit gleichem Neigungswinkel zur Horizontalen wenigstens ein weiteres gleichartiges Lamellenförderband so angeordnet, dass die Sendungen, die nicht zwischen den Lamellen ins Innere des jeweiligen Lamellenförderbandes gleiten, von der oberen Umlenkung aus mit Hilfe von Führungsmitteln nach unten auf den unteren Abschnitt des die Sendungen nach oben transportierenden Trums des sich jeweils anschließenden Lamellenförderbandes geleitet werden. Dabei sind die Dicken der seitlich aus den Lamellenförderbändern seitlich heraustransportierenden Sendungen kleiner als die Spaltbreiten in Trumabschnitt. Haben sich Sendungen zwischen den Lamellen verklemmt, so werden sie an den Umlenkungen wieder frei, da dort aufgrund der gebogenen Bahn der Zugmittel die daran starr befestigten Lamellen auseinander gespreizt werden. Diese Vorrichtung ermöglicht eine kompakte und aufwandsarme Bauweise.Due to the rigid arrangement of the slats on two endless traction devices rotating on two deflection rollers, a slat conveyor belt is formed, the slats in the dream areas being inclined outwards at the same angle, so that gaps leading inwards are formed between them. The slat conveyor belt is inclined relative to the horizontal in such a way that mail items that are transported on the lower part of the run that transports the mail items upwards can slide into the interior of the slat conveyor belt due to their gravity, if they are thinner than that Gap width are. With the help of fixed guides in the interior of the slat conveyor belt, the sorted items slide onto a means of transport that transports these items laterally out of the slat conveyor belt. At a short distance behind it with the same angle of inclination to the horizontal, at least one other similar slat conveyor belt is arranged so that the consignments that do not slide between the slats into the interior of the respective slat conveyor belt are guided downwards from the upper deflection with the aid of guide means onto the lower section of the the consignments are transported upwards from the subsequent slat conveyor belt. The thicknesses of the consignments that are laterally transported out of the slat conveyor belts are smaller than the gap widths in the strand section. If consignments are jammed between the slats, they are released again at the deflections, since the slats rigidly attached to them are spread apart due to the curved path of the traction means. This device enables a compact and low-cost design.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen dargelegt . So ist es vorteilhaft, zur Aufteilung des Sendungsstromes in mehr als zwei Dickenklassen die Spaltbreiten zwischen den Lamellen bei den nachfolgenden Lamellenförderbändern zu erhöhen.Advantageous embodiments of the invention are set out in the subclaims. It is therefore advantageous to increase the gap widths between the slats in the subsequent slat conveyor belts in order to divide the mail flow into more than two thickness classes.
Zur Unterstützung des Sortiervorganges auf den Lamellenförderbändern ist es vorteilhaft, diese auf Vibrationen erzeugende Schwingungsgebern zu lagern.To support the sorting process on the lamellar conveyor belts, it is advantageous to store them on vibration-generating vibrators.
Vorteilhaft ist es auch, die freien Enden der Lamellen von den Zugmitteln weg abzukrδpfen, so dass sich der Spalt nach außen vergrößert und die Sendungen leichter zwischen die Lamellen gelangen.It is also advantageous to bend the free ends of the slats away from the traction means, so that the gap widens outwards and the mail items get between the slats more easily.
Anschließend wird die Erfindung in einem Ausführungsbeispiel anhand der Zeichnung näher erläutert.The invention is then explained in more detail in an exemplary embodiment with reference to the drawing.
Dabei zeigtIt shows
FIG 1 eine schematische Seitenansicht einer Trennvorrichtung mit drei Trennstufen.1 shows a schematic side view of a separation device with three separation stages.
Als erstes gelangen die flachen Sendungen 10 über eine Zuführeinrichtung 1, die sowohl aktiv als angetriebenes Unterflurband als auch passiv als Rutsche ausgebildet sein kann, auf den unteren Teil eines die Sendungen 10 nach oben transportierenden Trums eines angetriebenen Lamellenförderbandes, das gegenüber der Horizontalen nach oben geneigt ist. Damit die Sendungen 10 nicht nach unten vom Lamellenförderband rutschen können, befindet sich am unteren Ende des Trums ein senkrecht zur Trumfläche ausgerichtetes Auffangblech 2.First, the flat mail items 10 pass via a feed device 1, which can be designed both actively as a driven underfloor belt and passively as a slide, to the lower part of a strand of the mail items 10 transporting upwards, of a driven slat conveyor belt which is inclined upwards with respect to the horizontal is. So that the mail items 10 cannot slide down from the slat conveyor belt, there is a collecting plate 2, which is aligned perpendicular to the surface of the strand at the lower end of the strand.
Das Lamellenförderband besteht aus zwei umlaufenden, endlosen, über Umlenkrollen 4 geführten und angetriebenen Zugmitteln 3, an denen mit ihren seitlichen Enden mit ihren Längsachsen senkrecht zur Bewegungsrichtung in gleichen Abstand nach außen geneigt die Lamellen starr befestigt sind. Das Lamellenförderband ist, nach oben gegen die Horizontale geneigt. Die Neigung der Lamellen 5 gegenüber den Zugmitteln 3 wird gemäß der gewünschten Spaltbreite und die Neigung des Lamellenförderbandes gegenüber der Horizontalen so gewählt, dass die entsprechend schmalen Sendungen 10 beim Transport nach oben auf den Lamellen 5 aufgrund ihrer Schwerkraft leicht durch die zwischen den Lamellen 5 gebildeten Spalte ins Innere des Lamellenförderbandes gleiten können. Im Inneren befinden sich senkrecht zueinander zwei Förderbänder 7 als Transportmittel, das die aussortierten Sendungen 11 senkrecht zur Betrachtungsebene hinausbefördert und ein Leit- blech 6 als Führungsmittel, das die durch die Spalte gleitenden Sendungen 11 zu den Förderbändern 7 leitet. Die Lamellen 5 sind an ihren Spitzen nach außen abgekröpft, um das Einfädeln der Sendungen 11 in die Spalte zu erleichtern. Beim Transport nach oben gleiten große Sendungspulks teilwei- se zurück bis zum Auffangblech 2, um dann von den Lamellen 5 erneut mitgenommen zu werden.The slat conveyor belt consists of two rotating, endless, guided over deflection rollers 4 and driven traction means 3, to which the slats are rigidly attached with their lateral ends with their longitudinal axes perpendicular to the direction of movement at an equal distance to the outside. The slat conveyor belt is inclined upwards against the horizontal. The inclination of the slats 5 in relation to the traction means 3 is chosen in accordance with the desired gap width and the inclination of the slat conveyor belt relative to the horizontal so that the correspondingly narrow consignments 10 can easily slide into the interior of the slat conveyor belt through the gaps formed between the slats 5 during transport upwards on the slats 5. Inside are two conveyor belts 7 perpendicular to each other as a means of transport that conveys the sorted mail items 11 perpendicular to the viewing plane and a guide plate 6 as a guide means that guides the mail items 11 sliding through the gaps to the conveyor belts 7. The lamellae 5 are bent outwards at their tips in order to facilitate the threading of the mail items 11 into the column. When transported upwards, large batches of mail partially slide back to the collecting plate 2, in order to then be taken up again by the slats 5.
Zu dicke Sendungen 10 und kleine Sendungspulks, die sich in den Spalten verklemmt haben, werden zur oberen Umlenkung transportiert. Dort werden die Lamellen 5 wegen des Umlenkra- dius auseinandergespreizt, die Verklemmungen lösen sich und alle Sendungen 10 rutschen vom oberen Ende des transportierenden Trums über ein weiteres Leitblech 8 als Führungsmittel auf den unteren Teil eines zweiten dicht hinter dem ersten befindlichen gleichartigen Lamellenförderbandes. Hier erfolgt die Aussonderung in der gleichen beschriebenenMail items 10 that are too thick and small mail items that have jammed in the columns are transported to the upper deflection. There, the lamellae 5 are spread apart because of the deflection radius, the jams are released and all the mailings 10 slide from the upper end of the transporting strand via a further guide plate 8 as a guide means onto the lower part of a second lamellae conveyor belt of the same type located just behind the first. Here the separation takes place in the same described
Art und Weise bzw. die nicht aussortierten Sendungen gelängen über das weitere Leitblech 8 dieses Lamellenförderbandes auf das dritte und letzte gleichartige Lamellenförderband. Die in allen drei Stufen aussortierten und über die Förderbänder 7 abtransportierten Sendungen 11,12,13 gelangen in einen Sammelbehälter oder werden aus drei separaten Behältern der Weiterverarbeitung zugeführt. Die nicht aussortierten Sendungen 10 werden über das weitere Leitblech 8 der letzten Stufe einem Förderband 9 zugeführt, oder sie werden über weitere nicht dargestellte Sortierstufen für größere Dicken in weitere Dickenklassen sortiert. The way or the non-sorted mail items reach the third and last identical slat conveyor belt via the further guide plate 8 of this slat conveyor belt. The mail items 11, 12, 13 sorted out in all three stages and transported away via the conveyor belts 7 arrive in a collecting container or are fed from three separate containers for further processing. The mailings 10 that have not been sorted out are fed to a conveyor belt 9 via the further guide plate 8 of the last stage, or they are sorted into further thickness classes via further sorting stages (not shown) for greater thicknesses.

Claims

Patentansprüche claims
1. Vorrichtung zum Trennen von flachen Sendungen in Dickenklassen mittels bewegter, hintereinander angeordneter, Spalte bildender, überlappter Lamellen (5) , d a d u r c h g e k e nn z e i c h n e t , dass die Lamellen (5) im gleichen Abstand nach außen geneigt seitlich an zwei über Umlenkrollen (4) geführten und angetriebenen, endlosen, umlaufenden Zugmitteln (3) mit ihren Längsachsen senk- recht zur Bewegungsrichtung starr, ein Lamellenförderband bildend, befestigt sind, wobei sich die Lamellen (5) beim Umlenken an den Umlenkrollen (4) auseinander spreizen, dass das Lamellenförderband so gegen die Horizontale nach oben geneigt ist, dass beim Transport der auf den unteren Teil des Lamellenförderbandes beförderten Sendungen (10) nach oben einzelne Sendungen (11) , die schmaler als die Spalte zwischen den in den Trumbereichen im gleichen Winkel nach außen geneigten Lamellen (5) sind, durch ihre Schwerkraft durch die Spalte zwischen die beiden Trums auf ein die Sendungen (11) aus dem Lamellenförderband seitlich heraus transportierendes Transportmittel (7) gleiten, dass dahinter in geringem Abstand mit gleichem Neigungswinkel zur Horizontalen wenigstens ein weiteres gleichartiges Lamellenförderband so angeordnet ist, dass die Sendungen (10) , die nicht zwischen den Lamellen (5) ins Innere des jeweiligen Lamellenförderbandes gleiten, von der oberen Umlenkung aus mit Hilfe von Führungsmitteln (8) nach unten auf den unteren Abschnitt des die Sendungen nach oben transportierenden Trums des sich je- weils anschließenden Lamellenförderbandes geleitet werden, wobei die Dicken der aus den Lamellenförderbändern seitlich heraus transportierten Sendungen (11,12,13) eine durch die Spaltbreiten festgelegte Maximaldicke nicht übersteigen.1. Device for separating flat mail items in thickness classes by means of moving, one behind the other, column-forming, overlapping lamellae (5), characterized in that the lamellae (5) are inclined outwards at the same distance laterally on two over deflection rollers (4) and driven, endless, rotating traction means (3) are fixed with their longitudinal axes perpendicular to the direction of movement, forming a lamella conveyor belt, the lamellae (5) spreading apart at the deflection rollers (4) so that the lamella conveyor belt opposes each other the horizontal is inclined upwards so that when the mail items (10) conveyed onto the lower part of the slat conveyor belt are transported upwards, individual mail items (11) which are narrower than the gap between the slats (5) inclined outwards at the same angle in the span areas are, by their gravity through the gap between the two strands on the programs (11) a From the slat conveyor belt, laterally transporting transport means (7) slide that behind it at a small distance with the same angle of inclination to the horizontal is arranged at least one other similar slat conveyor belt so that the mail items (10) that are not between the slats (5) inside the respective Slat conveyor belt slide, from the upper deflection with the aid of guide means (8) down to the lower section of the run transporting the items up the respective subsequent slat conveyor belt, the thicknesses of the items transported laterally out of the slat conveyor belts ( 11, 12, 13) do not exceed a maximum thickness determined by the gap widths.
Vorrichtung nach Anspruch 1 , d a d u r c h g e k e n n z e i c h n e t , dass zur Aufteilung des Sendungs Stromes in mehrere Dickenklassen nachfolgende Lamellenförderbänder steigende Spaltbreiten aufweisen.Apparatus according to claim 1, characterized in that for dividing the mail stream the following slat conveyor belts have increasing gap widths in several thickness classes.
3. Vorrichtung nach Anspruch 1, d a d u r c h g e k e n n - z e i c hn e t , dass die Lamellenförderbänder auf3. Device according to claim 1, d a d u r c h g e k e n n - z e i c hn e t that the slat conveyor belts on
Schwingungsgebern zur Erzeugung von Vibrationen gelagert sind.Vibration transmitters are mounted to generate vibrations.
4. Vorrichtung nach Anspruch 1, d a d u r c h g e k e n n - z e i c h n e t , dass die freien Enden der Lamellen (5) von den Zugmitteln weg abgekröpft sind. 4. The device according to claim 1, so that the free ends of the lamellae (5) are bent away from the traction means.
EP02754487A 2001-08-23 2002-08-02 Device for separating postal items according to thickness classes Withdrawn EP1419018A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10141375 2001-08-23
DE10141375A DE10141375C1 (en) 2001-08-23 2001-08-23 Device for separating mail items in thickness classes
PCT/DE2002/002850 WO2003018215A1 (en) 2001-08-23 2002-08-02 Device for separating postal items according to thickness classes

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EP1419018A1 true EP1419018A1 (en) 2004-05-19

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EP (1) EP1419018A1 (en)
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DE10141375C1 (en) 2003-03-13
US7111742B1 (en) 2006-09-26
WO2003018215A1 (en) 2003-03-06

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