EP0021396A1 - Dispositif pour désolidariser les feuilles d'une pile - Google Patents

Dispositif pour désolidariser les feuilles d'une pile Download PDF

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Publication number
EP0021396A1
EP0021396A1 EP80103537A EP80103537A EP0021396A1 EP 0021396 A1 EP0021396 A1 EP 0021396A1 EP 80103537 A EP80103537 A EP 80103537A EP 80103537 A EP80103537 A EP 80103537A EP 0021396 A1 EP0021396 A1 EP 0021396A1
Authority
EP
European Patent Office
Prior art keywords
stack
roller
sheets
clamping means
belt
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
EP80103537A
Other languages
German (de)
English (en)
Other versions
EP0021396B1 (fr
Inventor
Ronald Eugene Hunt
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of EP0021396A1 publication Critical patent/EP0021396A1/fr
Application granted granted Critical
Publication of EP0021396B1 publication Critical patent/EP0021396B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/60—Loosening articles in piles

Definitions

  • This invention relates to sheet separation. More particularly, it relates to providing uniform edge separation of all sheets in a stack.
  • Shingling as a method of sheet separation is known.
  • U.S. Patent 3,008,709 to Buslik assigned to the same assignee as the present invention
  • Shingler wheels the action of which results in the uppermost sheets in stack being displaced in a direction perpendicular to the axis of wheel rotation are also known in the art.
  • Shingling with wheels of either of the two above referenced types affects only those sheets closest to the shingling wheel, and then only to varying amounts.
  • the indentation in the stack resulting from shingher wheel contact decays as the distance from the wheel increases.
  • Shingling with these kinds of wheels requires repeated applications of the shingler wheel to the stack. Using these kinds of shigler wheels often times requires various other means for restraining subsequent sheets and for realigning_the stack prior to the next shingler wheel contact.
  • apparatus for uniformly separating sheets in a stack in one cycle of operation. Sheets so separated may subsequently be picked and fed in any direction to any operation requiring cut sheets seriatim.
  • a stack of cut sheets in held in partial conformity about the periphery of a high friction shingler roller by at least a pair of pulleys about which an endless feed belt travels.
  • the invention proceeds from the fact that rotating the high friction shingler roller while the stack of sheets is so held causes the stack to pass between the roller and feed belt with the result that at the completion of its passage over the shingler roller the entire stack is uniformly separated.
  • the amount of uniform separation between sheets is believed to be a function of the diameter of the high friction shingler roller. The larger the diameter of the roller, the smaller is the amount of separation so long as the feed belt and high friction shingler roller travel at the same velocity in the same direction.
  • Clamp assembly generally designated by reference numeral 18, includes endless feed belt 20 mounted about fixed pulleys 22 and 24 and floating pulley 26.
  • Pulleys 22 and 24 are rotatably mounted on shafts 28 and 30, respectively, which shafts are attached to link member 32.
  • Pulley 26 is mounted on stud 34 which is floatingly mounted via spring 36 loaded arm 38 on link member 32.
  • Arm 38 is pivotally attached to link 32 at stud 39.
  • Link member 32 is pivotable about shaft 40 attached to frame 42 (shown in figure 4).
  • Spring 44 is provided to bias link 32 and thus clamp assembly 18 in its downward, operative position.
  • Generally square aperture 46 is also provided in link 32 to be the camming surface for eccentric cam 48 on cam shaft 50 which is also mounted on the frame.
  • Cam 48 is used to raise and lower link 32 about pivot shaft 40. It is to be understood that this particular means for raising and lowering clamp assembly 18 is shown for illustrative purposes only and other means may be used without departing from the scope of the invention.
  • shaft 50 which terminates in knob 52 (figure 4) may be rotated manually or mechanically.
  • Link 32 is indented in the area between pulleys 22 and 24 so that when clamp assembly 18 is lowered, belt 20 is able to conform itself and stack 10 about the periphery of shingler roller 14. This indented area and floating pulley 26 cooperate to provide contact between belt 20 and stacks of various thicknesses. Knife edge 60 shown in phantom, is provided for facilitating picking separated sheets. Knife edge 60 may be seen more clearly in figure 4 and will be described having reference thereto.
  • Figures 2 and 3 show the apparatus of figure 1 in side view.
  • Figure 2 illustrates the position of the apparatus when the stack 10 is clamped on shingler roller 14; figure 3 when the stack has completely traversed shingler roller 14.
  • Figure 4 illustrates a top view of the apparatus shown in figure 1 in the position shown in figure 3. Like reference numerals are used to indicate elements common to the figures.
  • link members 32 and associated clamp assemblies arranged at either end of pivot shaft 40. The position of link members 32 on shaft 40 are adjustable to accomodate paper of various widths.
  • Knife edge 60 Positioned intermediate of link members 32 on pivot shaft 40 is pivotable knife edge 60 which is operable to pick sheets after they have been separated. Knife edge 60 operates in a conventional manner and is shown for purposes of illustration only. It is also to be noted that sheets separated in accordance with the invention may then be fed in any direction.
  • apparatus embodying the invention will operate to quickly and uniformly separate a stack of sheets prior to the beginning of any feeding to the utilization device, which may for example be a printer requesting sheets to be fed at an irregular rate.
  • a stack of sheets 10 is manually placed as shown with respect to shingler roller 14.
  • Clamp assembly 18 is brought to its operative position shown in figure 2, manually or mechanically.
  • Rotation by means not shown of shingler roller 14 begins and the edges of the sheets in stack 10 are uniformly separated as the stack moves from bed 6 to bed 8 over shingler roller 14 while held in conformity therewith by clamp assembly 18.
  • Belt 20 is driven through stack 10 by shingler roller 14. The stack is separated when it has travelled to the position indicated in figure 3, and continuous rotation of shingler 14 ends.
  • Knife edge 60 is spring loaded down by means not shown and sheets are ready to be picked from the stack. Incremental rotation of shingler roller 14 permits knife edge 60 to pick to topmost sheet as its trailing edge springs up. Stated differently, further rotation of shingler roller 14 brings the topmost sheet out from under clamp assembly 18, into a position where knife edge 60 can pick it. Sheets so picked may be further transported in any direction by conventional means.
  • roller 14 may be mounted idle on shaft 16, and driving means may be provided to drive belt 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP80103537A 1979-06-29 1980-06-24 Dispositif pour désolidariser les feuilles d'une pile Expired EP0021396B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5367779A 1979-06-29 1979-06-29
US53677 1979-06-29

Publications (2)

Publication Number Publication Date
EP0021396A1 true EP0021396A1 (fr) 1981-01-07
EP0021396B1 EP0021396B1 (fr) 1983-05-04

Family

ID=21985824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103537A Expired EP0021396B1 (fr) 1979-06-29 1980-06-24 Dispositif pour désolidariser les feuilles d'une pile

Country Status (4)

Country Link
EP (1) EP0021396B1 (fr)
JP (1) JPS567846A (fr)
DE (1) DE3062961D1 (fr)
IT (1) IT1149969B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422563A2 (fr) * 1989-10-07 1991-04-17 Wolfgang Mohr Procédé pour rompre une pile des feuilles et dispositif pour mettre en oeuvre le procédé
US5288065A (en) * 1992-03-06 1994-02-22 De La Rue Giori S.A. Method for separating sheets of paper stacked in reams and device for implementing this method
EP1930262A1 (fr) * 2006-12-08 2008-06-11 Adolf Mohr Maschinenfabrik GmbH & Co. KG Dispositif et procédé destinés à ouvrir et aérer des piles de matériau constituées de feuilles
EP2053001A1 (fr) 2007-10-24 2009-04-29 Adolf Mohr Maschinenfabrik GmbH & Co. KG Procédé destiné à aérer une pile de matériau formé de feuilles, en particulier une pile de papier, ainsi que dispositif d'exécution du procédé
EP1443006B2 (fr) † 2003-01-29 2011-06-29 Baumann Maschinenbau Solms GmbH & Co. KG Procédé pour rompre et ventiler une pile des feuilles, en particulier une pile des feuilles de papier

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6040347U (ja) * 1983-08-29 1985-03-20 池田物産株式会社 積層物自動剥離装置
JPS60157430A (ja) * 1984-01-26 1985-08-17 Sanko Giken:Kk 給紙装置用カセツト
JPH0755698B2 (ja) * 1987-02-20 1995-06-14 東洋インキ製造株式会社 枚葉紙の積載方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR537882A (fr) * 1922-05-31
US3008709A (en) * 1958-10-06 1961-11-14 Ibm Sheet separating and feeding apparatus
FR2353466A1 (fr) * 1976-05-31 1977-12-30 Transac Dev Transact Automat Dispositif pour desolidariser les unes des autres les feuilles d'une pile
DE2639677A1 (de) * 1976-09-03 1978-03-09 Oppenweiler Gmbh Maschinenbau Verfahren und vorrichtung zum schuppen eines bogenstapels
DE2641214B2 (de) * 1975-11-03 1979-01-04 Walter Attnang-Puchheim Sticht (Oesterreich) Vorrichtung zum Auflösen eines Folien- oder Blattstapels

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347980A (en) * 1976-05-21 1978-04-28 Sato Eizou Lock switch device
JPS541205A (en) * 1977-06-04 1979-01-08 Setsuo Yamamoto Blowing apparatus for blast furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR537882A (fr) * 1922-05-31
US3008709A (en) * 1958-10-06 1961-11-14 Ibm Sheet separating and feeding apparatus
DE2641214B2 (de) * 1975-11-03 1979-01-04 Walter Attnang-Puchheim Sticht (Oesterreich) Vorrichtung zum Auflösen eines Folien- oder Blattstapels
FR2353466A1 (fr) * 1976-05-31 1977-12-30 Transac Dev Transact Automat Dispositif pour desolidariser les unes des autres les feuilles d'une pile
DE2639677A1 (de) * 1976-09-03 1978-03-09 Oppenweiler Gmbh Maschinenbau Verfahren und vorrichtung zum schuppen eines bogenstapels

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422563A2 (fr) * 1989-10-07 1991-04-17 Wolfgang Mohr Procédé pour rompre une pile des feuilles et dispositif pour mettre en oeuvre le procédé
EP0422563A3 (en) * 1989-10-07 1992-02-26 Wolfgang Mohr Method for force-opening of a pile of sheets and device for carrying out the method
US5288065A (en) * 1992-03-06 1994-02-22 De La Rue Giori S.A. Method for separating sheets of paper stacked in reams and device for implementing this method
EP1443006B2 (fr) † 2003-01-29 2011-06-29 Baumann Maschinenbau Solms GmbH & Co. KG Procédé pour rompre et ventiler une pile des feuilles, en particulier une pile des feuilles de papier
EP1930262A1 (fr) * 2006-12-08 2008-06-11 Adolf Mohr Maschinenfabrik GmbH & Co. KG Dispositif et procédé destinés à ouvrir et aérer des piles de matériau constituées de feuilles
US7810801B2 (en) 2006-12-08 2010-10-12 Mohr Adolf Maschf Apparatus and method for separating and aerating a stack of sheet material
EP2053001A1 (fr) 2007-10-24 2009-04-29 Adolf Mohr Maschinenfabrik GmbH & Co. KG Procédé destiné à aérer une pile de matériau formé de feuilles, en particulier une pile de papier, ainsi que dispositif d'exécution du procédé

Also Published As

Publication number Publication date
IT8022508A0 (it) 1980-06-03
EP0021396B1 (fr) 1983-05-04
DE3062961D1 (en) 1983-06-09
IT1149969B (it) 1986-12-10
JPS567846A (en) 1981-01-27

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