EP0672601A1 - Vorrichtung zum Zuführen von Bögen oder Umschlägen welche bedruckt werden müssen - Google Patents

Vorrichtung zum Zuführen von Bögen oder Umschlägen welche bedruckt werden müssen Download PDF

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Publication number
EP0672601A1
EP0672601A1 EP94118175A EP94118175A EP0672601A1 EP 0672601 A1 EP0672601 A1 EP 0672601A1 EP 94118175 A EP94118175 A EP 94118175A EP 94118175 A EP94118175 A EP 94118175A EP 0672601 A1 EP0672601 A1 EP 0672601A1
Authority
EP
European Patent Office
Prior art keywords
angle
flat
magazine
inclined plane
materials
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
EP94118175A
Other languages
English (en)
French (fr)
Other versions
EP0672601B1 (de
Inventor
Giuseppe Bortolotti
Jorge Costa
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.)
Olivetti Engineering SA
Original Assignee
OCD SA
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 OCD SA filed Critical OCD SA
Publication of EP0672601A1 publication Critical patent/EP0672601A1/de
Application granted granted Critical
Publication of EP0672601B1 publication Critical patent/EP0672601B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a device for introducing flat materials to be printed, such as sheets of paper and / or envelopes, for printers or typewriters comprising a magazine with a substantially flat bottom in which a stack of said flat materials is arranged and from which these materials are extracted one by one and introduced into the printer, drive rollers arranged on a drive shaft so as to move the upper flat material of the stack to bring it into the printer or the machine write, the device further comprising at least one retaining member intended to retain the flat materials disposed in said stack under the upper flat material.
  • Such devices are known for introducing sheets of paper used in printers, typewriters or even in other devices, such as photocopiers. These devices very frequently use, as a retaining member, retaining corners under which the upper sheet is extracted during its introduction. If these retaining corners can be satisfactory for use with relatively thin and not very rigid sheets, the use of thicker and rigid sheets or envelopes is no longer possible with this type of retaining members.
  • the object of the present invention is to remedy this drawback and to create a device allowing the introduction of flat materials to be printed of very different rigidity ranging from very thin sheet to card stock or envelopes.
  • the retaining member comprises at least one movable part mounted movably on the magazine and having an upper surface intended to come into contact with the front edge of said flat materials to constitute a bearing surface with variable orientation for said flat materials disposed downstream of the drive rollers, the orientation of this variable bearing surface relative to said substantially planar bottom being adjusted as a function of the rigidity of said flat materials to be printed, l 'angle between this variable bearing surface and a plane parallel to said bottom being greater for less rigid materials and lower for rigid materials.
  • the retaining member automatically adapts or can be adjusted manually to the rigidity of the sheets or envelopes to be introduced.
  • the retaining part is fixed, an angle that is too small corresponding to a strong inclination of this part would not make it possible to retain the underlying sheets effectively, which would then be partially entrained with the upper sheet, if these sheets are thin and not very rigid; on the contrary, envelopes or rigid sheets could not be extracted with a fixed retaining piece, if its angle with the support is too large.
  • the retaining piece is mobile and therefore has a bearing surface with variable orientation, which allows the introduction of very different stiffness and thickness materials.
  • the retaining member further comprises a fixed inclined plane making a predetermined angle with a plane parallel to said bottom, the moving parts being urged elastically towards a rest position, in which their bearing surface variable makes an angle with a plane parallel to said bottom greater than said predetermined angle of the fixed inclined plane, the moving parts being oriented by the flat material during its introduction so that the angle of the variable bearing surface with the plane parallel to said plane bottom decreases according to the increase in the rigidity of the flat material to be introduced.
  • the device comprises at least two moving parts constituted by leaf springs fixed by one of their ends to the magazine.
  • This arrangement allows a very simple, reliable and inexpensive construction.
  • Figure 1 shows a cross-sectional view of the device in the rest position.
  • Figure 2 is a front view of the device.
  • Figure 3 shows a side view
  • Figures 4a and 4b are partial views in cross section of the device during the introduction of a rigid sheet, respectively not very rigid.
  • Figures 5 and 6 are partial cross-sectional views of two variants.
  • the introduction device 1 illustrated in Figures 1 to 4 is removably mounted on a printer 2 of which only part of the frame 3 and the introduction channel 4 are shown.
  • the device 1 may of course also be integral with the printer, the typewriter or any other device using flat materials, such as sheets of paper, card stock or envelopes.
  • the device 1 comprises a magazine 6 with a bottom 8, a front wall 9, two fixed side walls 10 and 11, and a support plate 12 on which a stack of sheets 14, envelopes or any other flat material can be willing.
  • the support plate 12 is pivotally articulated on the side walls 10, 11 by means of two pivots 15 and biased by a spring 16 in the direction of the drive rollers 17, 18 mounted on a drive shaft 20.
  • the latter is connected via a gear train 21 to a motor 22.
  • the magazine 6 further comprises a movable lateral guide 25 slidably mounted in a lateral direction on the upper part of the support plate 12 in order to be able to adapt the width of device for introducing different formats of sheets or envelopes.
  • the movable lateral guide 25 and the lateral wall 10 are each provided with guide elements 26, 27 defining an insertion channel for the sheets and facilitating the placing of the stack of sheets 14 in the magazine 6.
  • the front wall 9 of the magazine has an extension 30 comprising a first portion 31 forming a fixed inclined plane making a predetermined angle ⁇ with a plane parallel to the bottom 8 of the magazine and a second curved final portion 32 substantially parallel to said bottom 8.
  • This extension 30 further comprises three openings 34 and three leaf springs 35 curved at their free ends 36. These leaf springs 35 are arranged along the front wall 9 and fixed to the bottom 8 of the magazine 6. Their the curved free ends 36 extend inside the openings 34.
  • the non-curved part 37 of the spring blades 35 makes an angle ⁇ greater than the angle ⁇ with a plane parallel to the bottom 8.
  • the three blades springs 35 in combination with the fixed inclined plane 31 thus constitute a retaining member 40 disposed downstream of the drive rollers 17.
  • the upper surface of the non-bent portion 37 of the spring blades 35 acts as a bearing surface with variable orientation for sheets or envelopes.
  • the angle ⁇ between this bearing surface and a plane parallel to the bottom 8 of the magazine is variable depending on the rigidity of the materials to be introduced. This angle ⁇ is greater for thin and not very rigid sheets where it approaches 90 °, see FIG. 4B.
  • the leaf springs 35 serving as bearing surface are strongly pushed down in FIG. 4a by the rigid sheet, so as to obtain an adequate inclination to introduce the rigid sheet while retaining the underlying sheets or envelopes.
  • the angle ⁇ becomes equal to the angle ⁇ and the rigid sheet extracted slides simultaneously on the fixed inclined plane 31 and on the upper surface of the leaf springs 35 which are retracted into the openings 34.
  • the angle ⁇ between the fixed inclined plane 31 and a plane parallel to the bottom 8 is preferably chosen between 30 ° and 80 °, very advantageously between 60 ° and 65 °; it is in the configuration illustrated in Figures 1 and 4, 63 °.
  • the inclination of this fixed inclined plane 31 relative to the front wall 9 is therefore between 10 ° and 60 °, and is in Figures 1 and 4 by 27 °.
  • variable angle ⁇ between the variable bearing surface of the non-curved part 37 of the leaf springs 35 therefore varies substantially between 90 ° and the angle ⁇ , namely 63 ° in the case of FIGS. 1 and 4.
  • the suitable slope or angle ⁇ is automatically adjusted by the flat material to be introduced itself, and this as a function of its rigidity.
  • the introduction device is further provided with an additional retaining member 42.
  • the latter is constituted by a retaining corner 43 intended to cooperate with one of the corners of the front edge of the sheets.
  • This retaining corner 43 is integral with a lever 44 pivotally articulated on the side wall 10 by means of a pivot 45.
  • a notching member 46 makes it possible to retain the lever 44 in two positions determined by three stops 47, 48 and 49
  • the retaining corner 43 is in the active position and serves as an additional retaining member for thin and not very rigid sheets.
  • the retaining wedge 43 is retracted. This position is used for rigid or thick materials, such as envelopes.
  • the device could of course also function satisfactorily without the additional retaining member 42, but the latter constitutes an additional safety element making the device particularly reliable even with very thin sheets.
  • the upper surfaces of the fixed inclined plane 31, of the extension 30 and possibly of the leaf springs 35 may be covered with a layer of substance modifying the coefficient of friction, such as a thin layer of tetrafluoroethylene. This layer is then used more particularly to erase the fine unevenness and roughness of the device manufacturing.
  • FIG. 5 represents a variant of the device in which spring blades 35 are replaced by levers 50 pivotally mounted by means of an axis 51 on the wall 9 of the magazine 6.
  • Springs 52 urge the levers 50 in a rest position, such that 'illustrated in Figure 5, wherein the upper bearing surface 53 of the lever makes an angle close to 90 ° with a plane parallel to the bottom 8.
  • This position corresponds to an introduction of very slightly rigid sheets.
  • the lever 50 is tilted anti-clockwise in FIG. 5 so as to be practically retracted inside the opening 34 in the extension 30.
  • the envelopes then also cooperate with the fixed inclined plane 31.
  • the retaining member may be formed by a single piece 60, lever or plate, of a substantially equal width to the width of the insertion device and pivotally mounted on the front wall 9.
  • the pivoting or tilting movement of this part is delimited in both directions by stops 61, 62 so that the upper bearing surface with variable orientation of this part 60 has an angle ⁇ with a plane parallel to the bottom 8 varying between substantially 90 ° and 60 °.
  • An elastic element such as a spring 64, biases the part towards a rest position against the stop 61 in which the angle ⁇ is substantially 90 °.
  • the extension 30 of the front wall 9 is eliminated in this variant.
  • the embodiments described above are in no way limiting and that they can receive any desirable modifications inside the frame as defined by claim 1.
  • the position of the magazine 6 may be different, its bottom 8 could be inclined or horizontal.
  • the support plate 12 may be fixed, the drive rollers would then be stressed during an insertion operation elastically against the sheets to be extracted.
  • the number of leaf springs 35 may be different from three, for example four or more.
  • drive rollers it is also possible to provide other members, such as a striking cylinder or drive lugs.
  • these springs may be replaced by a manual or other adjustment device making it possible to adjust the part of the upper bearing surface of this lever according to the sheets or envelopes to introduce.
  • the device may also include an additional retaining member 42 comprising two retractable retaining corners 43.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Handling Of Cut Paper (AREA)
EP94118175A 1994-03-07 1994-11-18 Vorrichtung zum Zuführen von Bögen oder Umschlägen welche bedruckt werden müssen Expired - Lifetime EP0672601B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00682/94A CH689671A5 (fr) 1994-03-07 1994-03-07 Dispositif d'introduction de feuilles ou d'enveloppes à imprimer.
CH682/94 1994-03-07

Publications (2)

Publication Number Publication Date
EP0672601A1 true EP0672601A1 (de) 1995-09-20
EP0672601B1 EP0672601B1 (de) 1998-02-25

Family

ID=4192707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118175A Expired - Lifetime EP0672601B1 (de) 1994-03-07 1994-11-18 Vorrichtung zum Zuführen von Bögen oder Umschlägen welche bedruckt werden müssen

Country Status (5)

Country Link
US (1) US5527029A (de)
EP (1) EP0672601B1 (de)
JP (1) JP3468600B2 (de)
CH (1) CH689671A5 (de)
DE (1) DE69408659T2 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694490A2 (de) 1994-07-29 1996-01-31 Canon Kabushiki Kaisha Apparat zum Zuführen von Bögen
EP0694491A2 (de) * 1994-07-29 1996-01-31 Canon Kabushiki Kaisha Apparat zum Zuführen von Bögen
EP0734875A2 (de) * 1995-03-30 1996-10-02 Canon Kabushiki Kaisha Blattzufuhrvorrichtung
EP0786426A1 (de) * 1996-01-25 1997-07-30 Canon Kabushiki Kaisha Blattzufuhrvorrichtung
EP0781720A3 (de) * 1995-12-26 1998-05-27 Brother Kogyo Kabushiki Kaisha Bogenzuführvorrichtung mit verbesserter Trennung der Bogen in Unabhängigkeit der Steifigkeit und Grösse der Bogen
EP0885825A2 (de) * 1997-06-20 1998-12-23 Lexmark International, Inc. Bogentrenner
US6712351B2 (en) 2001-05-03 2004-03-30 Benq Corporation Sheet feeding apparatus

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3311157B2 (ja) * 1994-07-29 2002-08-05 キヤノン株式会社 シート材給送装置及び記録装置
JPH09175681A (ja) * 1995-12-26 1997-07-08 Brother Ind Ltd 用紙搬送装置
JP3648831B2 (ja) * 1996-03-29 2005-05-18 ブラザー工業株式会社 給紙装置及びこれを用いた印刷装置
JP3731260B2 (ja) * 1996-09-06 2006-01-05 ブラザー工業株式会社 給紙装置及びそれを備える画像記録機
JPH10139178A (ja) * 1996-11-06 1998-05-26 Konica Corp 給紙装置及び両面画像形成装置
US6168150B1 (en) * 1996-12-25 2001-01-02 Minolta Co., Ltd. Sheet feeder unit
KR100233118B1 (ko) * 1997-12-29 1999-12-01 윤종용 프린터의 봉투 가압장치
US5971390A (en) * 1998-02-11 1999-10-26 Lexmark International, Inc. Sheet aligning apparatus
JP3676135B2 (ja) * 1999-08-20 2005-07-27 株式会社Ｐｆｕ 給紙装置及び方法、並びに、画像読取装置
US6502816B2 (en) * 2000-03-13 2003-01-07 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus having same
KR100465161B1 (ko) * 2002-01-07 2005-01-13 삼성전자주식회사 사무기기의 급지장치
JP3741069B2 (ja) * 2002-03-29 2006-02-01 ブラザー工業株式会社 給紙装置及びこれを備えた画像形成装置
JP3913120B2 (ja) * 2002-06-18 2007-05-09 キヤノン株式会社 シート材給送装置及び記録装置
JP4206811B2 (ja) * 2003-05-02 2009-01-14 セイコーエプソン株式会社 給紙装置
DE10347602A1 (de) * 2003-07-17 2005-02-03 Wohlenberg Buchbindesysteme Gmbh Verfahren und Vorrichtung zum Zusammentragen von Druckbögen
JP3960322B2 (ja) * 2004-06-25 2007-08-15 ブラザー工業株式会社 被記録シート供給装置及びファクシミリ装置
GB2418176B (en) * 2004-09-15 2007-11-28 Fuji Photo Film Co Ltd Planographics printing plate feeding apparatus
US7419318B2 (en) * 2004-09-16 2008-09-02 Konica Minolta Medical & Graphic, Inc. Recording medium conveying device
CN101108699B (zh) * 2006-07-19 2010-06-09 光宝科技股份有限公司 物件馈送系统
JP4826812B2 (ja) * 2007-06-20 2011-11-30 セイコーエプソン株式会社 給送装置、記録装置
JP5495681B2 (ja) * 2009-09-07 2014-05-21 キヤノン株式会社 シート給送装置、画像読取装置及び画像形成装置
JP5911217B2 (ja) * 2011-06-30 2016-04-27 キヤノン株式会社 記録装置
JP6081792B2 (ja) * 2012-12-20 2017-02-15 株式会社Pfu 原稿の搬送装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56142369A (en) * 1980-04-04 1981-11-06 Tokyo Shibaura Electric Co Performance tester for refrigerating chamber
FR2564445A1 (fr) * 1984-05-15 1985-11-22 David Michel Dispositif d'alimentation un par un d'objets plats empiles, notamment de microfiches ou objets analogues
DE3838038A1 (de) * 1987-11-09 1989-05-18 Canon Kk Blatt-transportvorrichtung
EP0386737A2 (de) * 1989-03-08 1990-09-12 Canon Kabushiki Kaisha Bogenzuführvorrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847739A (ja) * 1981-09-11 1983-03-19 Fuji Xerox Co Ltd 用紙給送装置
JPH01172140A (ja) * 1987-12-24 1989-07-07 Fujitsu Ltd 印刷用紙の給送装置
US5026042A (en) * 1990-01-22 1991-06-25 Xerox Corporation Sheet feeder for copiers and printers
JP2919015B2 (ja) * 1990-08-04 1999-07-12 オリンパス光学工業株式会社 積載紙分離装置
JPH0494339A (ja) * 1990-08-06 1992-03-26 Matsushita Electric Ind Co Ltd 給紙装置
JP2660181B2 (ja) * 1991-04-09 1997-10-08 富士写真フイルム株式会社 シート材の自動供給装置
US5350168A (en) * 1992-03-26 1994-09-27 Xerox Corporation Corrugated fang for multi media feeder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56142369A (en) * 1980-04-04 1981-11-06 Tokyo Shibaura Electric Co Performance tester for refrigerating chamber
FR2564445A1 (fr) * 1984-05-15 1985-11-22 David Michel Dispositif d'alimentation un par un d'objets plats empiles, notamment de microfiches ou objets analogues
DE3838038A1 (de) * 1987-11-09 1989-05-18 Canon Kk Blatt-transportvorrichtung
EP0386737A2 (de) * 1989-03-08 1990-09-12 Canon Kabushiki Kaisha Bogenzuführvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 133 (M - 221) 10 June 1983 (1983-06-10) *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694491A2 (de) * 1994-07-29 1996-01-31 Canon Kabushiki Kaisha Apparat zum Zuführen von Bögen
EP0694491A3 (de) * 1994-07-29 1997-01-29 Canon Kk Apparat zum Zuführen von Bögen
US6045220A (en) * 1994-07-29 2000-04-04 Canon Kabushiki Kaisha Sheet supply apparatus
US5992993A (en) * 1994-07-29 1999-11-30 Canon Kabushiki Kaisha Sheet supply apparatus
EP0694490A2 (de) 1994-07-29 1996-01-31 Canon Kabushiki Kaisha Apparat zum Zuführen von Bögen
US5918873A (en) * 1995-03-30 1999-07-06 Canon Kabushiki Kaisha Sheet supplying apparatus which regulates tip end of sheet by first and second abutment means
EP0734875A2 (de) * 1995-03-30 1996-10-02 Canon Kabushiki Kaisha Blattzufuhrvorrichtung
US6305682B1 (en) 1995-03-30 2001-10-23 Canon Kabushiki Kaisha Sheet supplying apparatus
EP0734875A3 (de) * 1995-03-30 1998-08-26 Canon Kabushiki Kaisha Blattzufuhrvorrichtung
US5857671A (en) * 1995-12-26 1999-01-12 Brother Kogyo Kabushiki Kaisha Sheet feeder having improved sheet separation regardless of rigidity and size of sheet
EP0781720A3 (de) * 1995-12-26 1998-05-27 Brother Kogyo Kabushiki Kaisha Bogenzuführvorrichtung mit verbesserter Trennung der Bogen in Unabhängigkeit der Steifigkeit und Grösse der Bogen
US6095515A (en) * 1996-01-25 2000-08-01 Canon Kabushiki Kaisha Sheet supplying apparatus with separating means and guide
EP0786426A1 (de) * 1996-01-25 1997-07-30 Canon Kabushiki Kaisha Blattzufuhrvorrichtung
EP0885825A3 (de) * 1997-06-20 1999-09-15 Lexmark International, Inc. Bogentrenner
EP0885825A2 (de) * 1997-06-20 1998-12-23 Lexmark International, Inc. Bogentrenner
EP1125873A1 (de) * 1997-06-20 2001-08-22 Lexmark International, Inc. Bogentrenner
US6712351B2 (en) 2001-05-03 2004-03-30 Benq Corporation Sheet feeding apparatus
DE10219140B4 (de) * 2001-05-03 2005-10-20 Benq Corp Blattzufuhrvorrichtung

Also Published As

Publication number Publication date
JPH07247033A (ja) 1995-09-26
JP3468600B2 (ja) 2003-11-17
US5527029A (en) 1996-06-18
DE69408659T2 (de) 1998-10-01
DE69408659D1 (de) 1998-04-02
EP0672601B1 (de) 1998-02-25
CH689671A5 (fr) 1999-08-13

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