EP1454857B1 - Vorrichtung zum Abnehmen eines einzelnen Papierbogens von einer Oberseite eines Stapels - Google Patents

Vorrichtung zum Abnehmen eines einzelnen Papierbogens von einer Oberseite eines Stapels Download PDF

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Publication number
EP1454857B1
EP1454857B1 EP03290576A EP03290576A EP1454857B1 EP 1454857 B1 EP1454857 B1 EP 1454857B1 EP 03290576 A EP03290576 A EP 03290576A EP 03290576 A EP03290576 A EP 03290576A EP 1454857 B1 EP1454857 B1 EP 1454857B1
Authority
EP
European Patent Office
Prior art keywords
separation roller
lip
pressing
paper
sheet
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 - Fee Related
Application number
EP03290576A
Other languages
English (en)
French (fr)
Other versions
EP1454857A1 (de
Inventor
Christoph Potakowskyj
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.)
Sagemcom Broadband SAS
Original Assignee
Sagem Communications SAS
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 Sagem Communications SAS filed Critical Sagem Communications SAS
Priority to EP03290576A priority Critical patent/EP1454857B1/de
Priority to AT03290576T priority patent/ATE346003T1/de
Priority to ES03290576T priority patent/ES2276023T3/es
Priority to DE60309827T priority patent/DE60309827T2/de
Publication of EP1454857A1 publication Critical patent/EP1454857A1/de
Application granted granted Critical
Publication of EP1454857B1 publication Critical patent/EP1454857B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B65H3/52—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
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0661—Rollers or like rotary separators for separating inclined-stacked articles with separator rollers above the stack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/52—Bearings, e.g. magnetic or hydrostatic bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/54—Springs, e.g. helical or leaf springs
    • 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
    • B65H2701/1912—Banknotes, bills and cheques or the like

Definitions

  • the invention relates to a device for removing a single sheet of paper lying at the top of a stack, comprising a separation roller which is driven in rotation and a sheet pressing-on lip, a first section of this sheet pressing-on lip and the separation roller being held pressed against one another in a sprung fashion and the sheet pressing-on lip having a second section which runs approximately tangentially with respect to the outer surface of the separation roller and has the purpose of supporting the end sides of the sheets of paper.
  • Such devices are used in telefax units, copiers, computer printers, money counting machines or the like.
  • the separation roller is rotatably mounted but its axis of rotation is held immovably in the housing of the unit.
  • the pressing-on lip is secured to a corresponding carrier, which carrier is displaceably mounted in the housing and is pressed in the direction of the separation roller by means of a spring.
  • EP-A-0452961 teaches a device of the type specified at the beginning, for removing a single sheet of paper lying at the top of a stack, which device is of structurally simpler design and requires fewer components. According to this reference the pressing-on lip is immovably secured and the separation roller is held pressed against the pressing-on lip in a sprung fashion.
  • the pressing-on lip can thus be secured to the housing wall which is present in any case in the region of the separation roller and has the purpose of guiding the stack of sheets of paper, and a component which is constructed separately therefrom for displaceably bearing the pressing-on lip can be dispensed with.
  • the invention relates to a device according to claim 1.
  • the spring in a further refinement of the invention it is possible to provide for the spring to be formed by a spring wire which has at least two bends and comprises a first lever which bears against the first axle stub, as well as a second lever which bears against a counterbearing.
  • Such a spring can be manufactured with particularly low expenditure, and can be held in the region of the separation roller using very simple means.
  • the present invention relates to the structural measures with which the top sheet 34 of paper can be removed from a stack 33 of a plurality of sheets of paper.
  • a sheet-separating device may be provided, for example twice in a telefax unit, namely at the blank-sheet infeed device on the one hand, and at the original-sheet infeed device on the other.
  • These two sheet-separating devices are of structurally identical design and can also be used in other devices in which sheets of paper have to be removed individually from a stack, for example in copiers, computer printers, money counting machines or the like.
  • a sheet-separating device has two functionally essential components, namely a separation roller 27 which can be driven in rotation and a sheet pressing-on lip 28.
  • Both the outer surface of the separation roller 27 and the pressing-on lip 28 have surfaces which form a higher coefficient of friction with paper than that between paper and paper.
  • the outer surface of the separation roller 27 and the entire pressing-on lip 28 are preferably formed from rubber.
  • a first section 29 of the pressing-on lip 28 and the separation roller 27 are held pressed against one another in a sprung fashion. If there is no sheet of paper arranged between these two parts, they bear one against the other with little pressure. According to the previously known prior art, this is achieved in that this section 29 is provided on a displaceably mounted carrier 31, and this carrier 31 is pressed in the direction of the separation roller 27 by a spring 32 (only illustrated symbolically).
  • the pressing-on lip 28 has a second section 30 which directly adjoins the first section 29 and which runs approximately tangentially with respect to the outer surface of the separation roller 27.
  • the end sides of the sheets of paper of the stack 33 which is to be separated rest on this section 30 or, owing to the oblique position of this second section 30, they slip in the direction of the separation roller 27.
  • the sheet 34 of paper which is at the top in the stack 33 comes to rest here on the edge of the first section 29 which bears against the separation roller 27.
  • the separation roller 27 and the pressing-on lip 28 do not extend over the entire width of the paper but are rather arranged at the half of this width and are narrow in comparison with it.
  • a sheet-separating device according to the invention is designed according to the same principle and functions according to the principle just explained.
  • Figs 3 and 4 on the one hand and 5 and 6 on the other show two exemplary embodiments of the device according to the invention.
  • the first embodiment shown in Figs 3 and 4 can be used in a device in particular for separating blank sheets
  • the second embodiment shown in Figs 5 and 6 can be used in a device in particular for separating original sheets.
  • the pressing-on lip 28 is secured in an immovable fashion here and the separation roller 27 is held pressed against the pressing-on lip 28 in a sprung fashion. This is achieved in structural terms by virtue of the fact that the pressing-on lip 28 is simply bonded onto the housing wall 35 which is located in the region of the separation roller 27 (cf. Figs 4 and 6), and the axle stubs 36, 37 of the separation roller 27 are not fixedly mounted but rather mounted so as to be displaceable in the direction of the pressing-on lip 28, which is clear from Fig. 7:
  • axle stubs 36, 37 which project beyond both its end sides.
  • the first axle stub 36 is kept relatively short here and mounted rotatably in a first bearing block 38 which is arranged directly next to the separation roller 27.
  • the second axle stub 37 is relatively long in comparison with the width b of the separation roller 27 and is mounted in a second bearing block 39 which is arranged spaced relatively far apart from the separation roller 27.
  • This method of bearing the separation roller 27 is known prior art, i.e. is also used in sheet-separating devices according to Figs 1 and 2.
  • a slot-like recess 40 in which the first axle stub 36 is mounted, is provided in the first bearing block 38.
  • This recess 40 can be embodied as an oblong hole or, as provided in Fig. 7, as a slot which is open at the edges.
  • first axle stub 36 is loaded by a spring 41 which attempts to displace it in the direction of the pressing-on lip 28 in the required fashion.
  • This spring 41 can be of basically any desired design.
  • the design illustrated in Fig. 7 has proven particularly favourable.
  • the spring 41 is composed here of a spring wire which has two bends. It thus comprises a first lever 42 whose free end bears against the first axle stub 36, a centre piece 43 which is attached to the housing of the device, and a second lever 44 which bears against a counterbearing 45.
  • the profile of the spring wire in the relaxed state is selected here to be such that, in the state in which it is installed in the housing as in Fig. 7, it exerts on the axle stub 36 the spring force which is necessary according to the invention.
  • the separation roller 27 is driven by means of the second axle stub 37 and/or the gearwheel 46 which is located next to the second bearing block 39 and is connected to the axle stub 37.
  • the large overall length of the axle stub 37 ensures that slight swivelling of this axle stub 37, such as occurs when the first axle stub 36 is displaced along the slot-like recess 40, leads to only extremely slight swivelling of this gearwheel 46. This swivelling is so slight that the gearwheel 46 does not become skewed with its drive wheel (not shown in Fig. 7).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Pile Receivers (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Claims (2)

  1. Eine Vorrichtung zum Entfernen eines auf der Oberseite eines Stapels (33) liegenden einzelnen Papierblatts (34), enthaltend eine drehangetriebene Trennrolle (27) und eine Papier-Andrucklippe (28), wobei ein erster Abschnitt (29) dieser Papier-Andrucklippe (28) und die Trennrolle (27) federnd aneinandergedrückt gehalten werden und die Papier-Andrucklippe (28) einen zweiten Abschnitt(39) hat, der angenähert tahgential mit Bezug auf die Außenfläche der Trennrolle (28) verläuft und die Endabschnitte der Papierblätter unterstützt, wobei die Andrucklippe (28) in einer unbeweglichen Weise befestigt und die Trennrolle (27) federnd an die Andrucklippe (28) gedrückt gehalten wird, dadurch gekennzeichnet, daß die Trennrolle (27) zur drehbaren Lagerung und zu ihrem Antrieb zwei Achsschenkelbolzen (36, 37) aufweist, welche in Lagerblöcken (38, 39) gelagert sind, wobei der erste Lagerblock (38) des ersten Achsschenkelbolzens (36) direkt nächst der Trennrolle (27) und der zweite Lagerblock (39) des zweiten Achsschenkelbolzens (37) in einem solchen Abstand von der Trennrolle (27) angeordnet ist, der groß ist im Verhältnis zu deren Breite (b), wobei der erste Achsschenkelbolzen (36) in einer schlitzartigen Ausnehmung (40) im ersten Lagerblock (38) montiert und durch eine Feder (41) belastet ist, welche ihn in die Richtung der Andrucklippe (28) drängt.
  2. Vorrichtung nach Anspruch 1, wobei die Feder (41) durch einen Federdraht gebildet ist, der wenigstens zwei Biegestellen hat und einen ersten Hebelarm (42), der sich an den ersten Achsschenkelbolzen (38) abstützt und einen zweiten Hebelarm (44) aufweist, der sich gegen ein Widerlager (45) abstützt.
EP03290576A 2003-03-07 2003-03-07 Vorrichtung zum Abnehmen eines einzelnen Papierbogens von einer Oberseite eines Stapels Expired - Fee Related EP1454857B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03290576A EP1454857B1 (de) 2003-03-07 2003-03-07 Vorrichtung zum Abnehmen eines einzelnen Papierbogens von einer Oberseite eines Stapels
AT03290576T ATE346003T1 (de) 2003-03-07 2003-03-07 Vorrichtung zum abnehmen eines einzelnen papierbogens von einer oberseite eines stapels
ES03290576T ES2276023T3 (es) 2003-03-07 2003-03-07 Dispositivo para quitar una sola hoja de papel de la parte superior de un apilamiento.
DE60309827T DE60309827T2 (de) 2003-03-07 2003-03-07 Vorrichtung zum Abnehmen eines einzelnen Papierbogens von einer Oberseite eines Stapels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03290576A EP1454857B1 (de) 2003-03-07 2003-03-07 Vorrichtung zum Abnehmen eines einzelnen Papierbogens von einer Oberseite eines Stapels

Publications (2)

Publication Number Publication Date
EP1454857A1 EP1454857A1 (de) 2004-09-08
EP1454857B1 true EP1454857B1 (de) 2006-11-22

Family

ID=32799110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03290576A Expired - Fee Related EP1454857B1 (de) 2003-03-07 2003-03-07 Vorrichtung zum Abnehmen eines einzelnen Papierbogens von einer Oberseite eines Stapels

Country Status (4)

Country Link
EP (1) EP1454857B1 (de)
AT (1) ATE346003T1 (de)
DE (1) DE60309827T2 (de)
ES (1) ES2276023T3 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153737A (ja) * 1983-02-22 1984-09-01 Toshiba Corp 給紙装置
JPS61124450A (ja) * 1984-11-19 1986-06-12 Ricoh Co Ltd 給紙トレイ
JP2963723B2 (ja) * 1990-04-20 1999-10-18 キヤノン株式会社 カットシート分離装置
JP4096140B2 (ja) * 1999-09-09 2008-06-04 船井電機株式会社 給紙装置

Also Published As

Publication number Publication date
DE60309827T2 (de) 2007-05-16
DE60309827D1 (de) 2007-01-04
ES2276023T3 (es) 2007-06-16
ATE346003T1 (de) 2006-12-15
EP1454857A1 (de) 2004-09-08

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