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EP0891288A1 - Dispositif et procede pour empecher des enlevements en double - Google Patents

Dispositif et procede pour empecher des enlevements en double

Info

Publication number
EP0891288A1
EP0891288A1 EP97908268A EP97908268A EP0891288A1 EP 0891288 A1 EP0891288 A1 EP 0891288A1 EP 97908268 A EP97908268 A EP 97908268A EP 97908268 A EP97908268 A EP 97908268A EP 0891288 A1 EP0891288 A1 EP 0891288A1
Authority
EP
European Patent Office
Prior art keywords
suction pump
objects
flat objects
switched
scraper
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.)
Granted
Application number
EP97908268A
Other languages
German (de)
English (en)
Other versions
EP0891288B1 (fr
Inventor
Werner Frank
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0891288A1 publication Critical patent/EP0891288A1/fr
Application granted granted Critical
Publication of EP0891288B1 publication Critical patent/EP0891288B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1916—Envelopes and articles of mail

Definitions

  • the present invention relates to an apparatus and a method according to the preambles of claims 1 and 5
  • the present invention is therefore based on the object of providing a device and a method for preventing double deductions in a separating device for flat objects, in which a variable retention force is only effective for a limited time to the extent necessary and a constant friction force, if any, only relatively is chosen small
  • FIG. 1 shows a cross section through an arrangement according to the invention according to claim 3
  • FIG. 2 shows a chronological sequence of the withdrawal process
  • Scraper 1 is carried by a guide arm 1 1, which in turn is pivotally mounted about an axle pin 10.
  • the connection between the guide arm 11 and the scraper 1 takes place by means of an axis 12 arranged in the vicinity of the outlet area of the scraper and by a mechanism which is shown in more detail in DE-PS 2704045.
  • the actuating force for the scraper is generated by the interaction of the first compression spring 6 acting on the guide arm 11 and the second compression spring 9 acting in the vicinity of the inlet region of the scraper between the scraper and the guide arm 11.
  • the pressing force / actuating force of the wipers and / or their friction coefficients can be kept small, so that the load on the letters during the deduction is low and even sensitive mail items can be separated safely and gently.
  • the sequence of the withdrawal process is shown in more detail.
  • the AB deduction tape starts and pulls off the attached letter.
  • a valve releases the line to the suction pump.
  • the peeled letter or a double peeled letter closes the openings in the working surface of the wipers, and a negative pressure builds up, which creates a holding force.
  • a correspondingly directed force also arises at the point of application of the second spring force.
  • the torques are largely compensated for, so that the wiper does not perform a tilting movement when the suction pump is switched on.
  • the take-off belt is stopped. If the letter has left the area of the wipers - item b, the connection to the suction pump is interrupted until there is a fixed distance between the letter removed and the subsequent letter, which may have been held back by the wiper.
  • the take-off belt is switched on again, the connection to the suction pump is restored - item c, and the process repeats itself, ie, in item d the removed letter has reached the transfer rollers and the take-off belt is stopped, in item e the Letters leave the area of the scrapers and the connection to the suction pump is interrupted, and in position f the defined gap between the letters is reached, the pull-off belt is started again and the connection to the suction pump is established

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

L'invention concerne un dispositif et un procédé destinés à empêcher des enlèvements en double dans un système de séparation individuelle d'objets plats, tels que lettres, cartes, documents et analogue, dans lequel il est prévu, sur un côté du parcours, au moins une bande d'enlèvement, tournant dans le sens du déplacement, en entraînant par friction les objets plats et, sur l'autre côté, en vue de retenir un excès d'objets enlevés, au moins un séparateur en forme générale de patin (1), monté mobile par rapport au plan des objets plats, au moyen d'un bras de guidage (11) et exerçant une force de réglage par pression sur lesdits objets. Conformément à l'invention, afin que lesdits objets soient moins sollicités, lors d'un processus d'enlèvement, par une force de retenue variable et limitée dans le temps, il est prévu des canaux (2) ménagés dans le séparateur et s'étendant jusqu'à la surface de travail en contact avec les objets plats. Ces canaux sont reliés à une pompe à vide. Le vide produit par la pompe est réglable et peut être aussi bien appliqué que supprimé. Conformément à un procédé approprié, la pompe à vide n'est opérationnelle que lorsque le système d'enlèvement fonctionne.
EP97908268A 1996-03-29 1997-03-20 Dispositif et procede pour empecher des enlevements en double Expired - Lifetime EP0891288B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19612566 1996-03-29
DE19612566A DE19612566C2 (de) 1996-03-29 1996-03-29 Vorrichtung zum Verhindern von Doppelabzügen
PCT/EP1997/001393 WO1997036811A1 (fr) 1996-03-29 1997-03-20 Dispositif et procede pour empecher des enlevements en double

Publications (2)

Publication Number Publication Date
EP0891288A1 true EP0891288A1 (fr) 1999-01-20
EP0891288B1 EP0891288B1 (fr) 2001-05-23

Family

ID=7789868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97908268A Expired - Lifetime EP0891288B1 (fr) 1996-03-29 1997-03-20 Dispositif et procede pour empecher des enlevements en double

Country Status (3)

Country Link
EP (1) EP0891288B1 (fr)
DE (2) DE19612566C2 (fr)
WO (1) WO1997036811A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933318A1 (fr) * 1998-01-28 1999-08-04 Grapha-Holding Ag Dispositif de séparation d'objects plats transportés d'une pile
US8557861B2 (en) 2004-09-28 2013-10-15 Mast Therapeutics, Inc. Low oil emulsion compositions for delivering taxoids and other insoluble drugs

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1611390B2 (de) * 1968-03-07 1976-11-25 Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm Saugluftabstreifer an einem saugluft-vereinzeler fuer briefsendungen und aehnliches flaches foerdergut
DE1904705A1 (de) * 1969-01-31 1970-08-06 Licentia Gmbh Saugbandvereinzeler fuer flache Sendungen
US4030723A (en) * 1975-12-15 1977-06-21 Pitney-Bowes, Inc. Vacuum-controlled, sheet-material separator and feeder system
DE2704045C3 (de) * 1977-02-01 1979-06-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vorrichtung zum Verhindern von Doppelabzügen
FR2674777B1 (fr) * 1991-04-03 1993-07-30 Darchis Pierre Dispositif pour separer deux objets plats accoles, notamment des enveloppes de courrier dans une installation de tri postal.
US5344133A (en) * 1993-02-25 1994-09-06 Eastman Kodak Company Vacuum belt feeder having a positive air pressure separator and method of using a vacuum belt feeder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9736811A1 *

Also Published As

Publication number Publication date
DE19612566A1 (de) 1997-10-02
DE59703600D1 (de) 2001-06-28
WO1997036811A1 (fr) 1997-10-09
EP0891288B1 (fr) 2001-05-23
DE19612566C2 (de) 1999-02-25

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