EP0021396B1 - 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
EP0021396B1
EP0021396B1 EP80103537A EP80103537A EP0021396B1 EP 0021396 B1 EP0021396 B1 EP 0021396B1 EP 80103537 A EP80103537 A EP 80103537A EP 80103537 A EP80103537 A EP 80103537A EP 0021396 B1 EP0021396 B1 EP 0021396B1
Authority
EP
European Patent Office
Prior art keywords
stack
roller
clamping means
sheets
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.)
Expired
Application number
EP80103537A
Other languages
German (de)
English (en)
Other versions
EP0021396A1 (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 proceeds from an apparatus for shingling sheets in a stack, as defined in the pre-characterizing part of attached claim 1.
  • Such an apparatus comprises a shingling mechanism for a stack of sheet, including a first roller having a rigid outside surface, rotated by driving means, and a second roller, freely rotating and having a flexible outside surface, the gap between the outside surfaces of both rollers being smaller than the thickness of the sheet stack.
  • the second roller is deformed because of its flexibility, forming a hollow, and the stack is drawn around the first roller along a given angle. This causes a progressive displacement of the sheets from one end face of the stack to the other, thus forming a shingled stack of sheets.
  • the present invention provides an improvement to the apparatus disclosed in DE-B-2,641,214, by the incorporation of additional features as defined in the characterizing part of attached claim 1.
  • 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 accommodate 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.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (6)

1. Appareil pour décaler les feuilles d'une pile (10), comprenant:
un rouleau d'entraînement (14), et
un dispositif de serrage tournant librement (18) afin d'appliquer une force à ladite pile de feuilles pour amener une première face d'extrémité de ladite pile en contact étroit avec ledit rouleau, et donner à ladite pile (10) une forme arquée correspondant à une partie de la périphérie dudit rouleau,
caractérisé en ce que ledit dispositif de serrage comprend une courroie (20) s'étendant entre au moins deux poulies intermédiaires folles (22, 24), espacées l'une de l'autre d'une distance correspondant sensiblement à la longueur de ladite partie de la périphérie dudit rouleau (14).
2. Appareil selon la revendication 1, caractérisé par le fait que ledit dispositif de serrage comprend en outre une pulie tensionneuse de courroie (26) tendue par un ressort (36), de façon à permettre à la partie de ladite courroie s'étendant entre les deux poulies susdites (22, 24), de rester en contact étroit avec la seconde face d'extrémité de ladite pile (10) lorsque ladite pile a pris la forme d'une partie de la périphérie dudit rouleau.
3. Appareil selon la revendication 1 ou 2, caractérisé par le fait que:
ledit dispositif de serrage (18) est monté sur une pièce de liaison pivotante (32),
l'axe (40) de ladite pièce de liaison est monté sur le bâti du dispositif (42) à une certaine distance dudit dispositif de serrage, et des ressorts (44) sont connectés entre ladite pièce de liaison pivotante et ledit bâti (42), pour appliquer ledit dispositif de serrage (18) contre ladite pile (10).
4. Appareil selon la revendication 3, caractérisé par le fait que:
un arbre à cames (50) muni d'un excentrique (48) est monté sur ledit bâti (42), et
ladite pièce de liaison (32) comprend une surface (46) conçue pour coopérer avec ledit excentrique (48) pour maintenir ledit dispositif de serrage (18) éloigné de ladite pile (10).
5. Appareil selon la revendication 1, caractérisé par le fait que le coefficient de frottement dudit rouleau (14) et de ladite courroie (20) est plus élevé que le coefficient de frottement entre lesdites feuilles.
6. Appareil selon la revendication 1, caractérisé par le fait qu'il comprend un premier et un second supports de pile (6 et 8), disposés de chaque côté dudit rouleau (14), le premier support (6) étant conçu pour recevoir la pile de feuilles à décaler, et le second support (8) de pile étant étudié pour recevoir ladite pile après son déplacement entre ledit rouleau (14) et ledit dispositif de serrage (18).
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 EP0021396A1 (fr) 1981-01-07
EP0021396B1 true 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)

Families Citing this family (8)

* 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
DE3933625C1 (fr) * 1989-10-07 1991-03-14 Wolfgang 6238 Hofheim De Mohr
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
ATE375951T1 (de) † 2003-01-29 2007-11-15 Baumann Maschb Solms Gmbh & Co Verfahren und vorrichtung zum aufbrechen und belüften von blattartigen materialstapeln, insbesondere von papierstapeln
ATE518794T1 (de) 2006-12-08 2011-08-15 Mohr Adolf Maschf Vorrichtung zum aufbrechen und belüften eines aus blättern gebildeten materialstapels
DE502007004027D1 (de) 2007-10-24 2010-07-15 Mohr Adolf Maschf Verfahren zum Auflockern eines aus Blättern gebildeten Stapels, insbesondere eines Papierstapels, sowie Vorrichtung zur Durchführung des Verfahrens

Family Cites Families (7)

* 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
AT342630B (de) * 1975-11-03 1978-04-10 Sticht Walter Vorrichtung zum auflosen eines folien- oder blattstapels
JPS5347980A (en) * 1976-05-21 1978-04-28 Sato Eizou Lock switch device
FR2353466A1 (fr) * 1976-05-31 1977-12-30 Transac Dev Transact Automat Dispositif pour desolidariser les unes des autres les feuilles d'une pile
DE2639677C2 (de) * 1976-09-03 1986-01-30 Maschinenbau Oppenweiler Gmbh, 7155 Oppenweiler Verfahren und Vorrichtung zum Schuppen eines Bogenstapels
JPS541205A (en) * 1977-06-04 1979-01-08 Setsuo Yamamoto Blowing apparatus for blast furnace

Also Published As

Publication number Publication date
EP0021396A1 (fr) 1981-01-07
DE3062961D1 (en) 1983-06-09
JPS567846A (en) 1981-01-27
IT8022508A0 (it) 1980-06-03
IT1149969B (it) 1986-12-10

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