EP0444222B1 - Appareil d'alimentation en feuilles - Google Patents

Appareil d'alimentation en feuilles Download PDF

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Publication number
EP0444222B1
EP0444222B1 EP90103751A EP90103751A EP0444222B1 EP 0444222 B1 EP0444222 B1 EP 0444222B1 EP 90103751 A EP90103751 A EP 90103751A EP 90103751 A EP90103751 A EP 90103751A EP 0444222 B1 EP0444222 B1 EP 0444222B1
Authority
EP
European Patent Office
Prior art keywords
sheet
cassette
sending
handling machine
chute plate
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 - Lifetime
Application number
EP90103751A
Other languages
German (de)
English (en)
Other versions
EP0444222A1 (fr
Inventor
Toshiyuki Nakamura
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial Co Ltd
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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Priority to DE1990610663 priority Critical patent/DE69010663T2/de
Priority to EP90103751A priority patent/EP0444222B1/fr
Publication of EP0444222A1 publication Critical patent/EP0444222A1/fr
Application granted granted Critical
Publication of EP0444222B1 publication Critical patent/EP0444222B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • G03G15/6514—Manual supply devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/36—Article guides or smoothers, e.g. movable in operation
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00379—Copy medium holder
    • G03G2215/00383—Cassette
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00367—The feeding path segment where particular handling of the copy medium occurs, segments being adjacent and non-overlapping. Each segment is identified by the most downstream point in the segment, so that for instance the segment labelled "Fixing device" is referring to the path between the "Transfer device" and the "Fixing device"
    • G03G2215/00379—Copy medium holder
    • G03G2215/00392—Manual input tray

Definitions

  • the present invention relates to an apparatus for sending a sheet (of paper) to a sheet handling machine (such as a sheet feeding mechanism inside of a copying machine or a printer).
  • a sheet handling machine such as a sheet feeding mechanism inside of a copying machine or a printer.
  • a typical copying machine has some sheet cassettes for different sheet sizes. Since automatic sheet feeding from the sheet cassettes is difficult for small and stiff sheets such as post cards or name cards, some copying machines are provided with a manual sheet-sending chute. In this case, a sheet feeding roller is prepared for each sheet cassette or the chute. Since a sheet is handled in only one of those at one time, the sheet feeding rollers are redundant.
  • Japanese Published Examined Utility Model Application No. S63-4034 discloses a sheet sending mechanism including an automatic sheet-feeding cassette, a manual sheet-sending chute and a single sheet feeding roller, where the sheet-sending chute is tiltable. When the sheet-sending chute is used, the end of the chute is brought near to the sheet feeding roller, and when it is not used, the end retires remote from the sheet feeding roller.
  • the prior art mechanism needs a large stroke in moving the chute and much space to swing it.
  • the large stroke needed to bring the chute to its operating position may sometimes cause difficulties in fixing it to the exact operable position.
  • DE-A-31 35 751 discloses a sheet sending apparatus comprising a sheet cassette, a sheet separator provided at an edge of the sheet cassette and a sheet guide in accordance with the precharacterizing part of claim 1.
  • the object of the present invention is to provide an apparatus for sending a sheet to a sheet handling machine which prevents a guided sheet from falling in a cassette while allowing a flipping action of the uppermost sheet fleeing the sheet separator.
  • Fig. 1 is a perspective view of a copying machine equipped with the manual sheet-sending chute of claim 2 and a sheet cassette.
  • Fig. 2 is a side view of the sheet sending apparatus equipped with a resilient sheet guide at the lower end of the lower chute.
  • Fig. 3 is a perspective view of the sheet guide.
  • Fig. 4 is an explanatory view of the movement of the uppermost sheet when it is drawn out of the sheet cassette.
  • Fig. 1 is a perspective view of a copying machine equipped with a manual sheet-sending apparatus according to the present invention.
  • the manual sheet-sending apparatus (only whose upper chute 5 is shown in Fig. 1) is attached at the entrance 2 of the housing 7 of the copying machine 1.
  • a sheet cassette 3 is also inserted in the entrance 2.
  • the housing 7 is horizontally divided to allow maintenance of the inside.
  • the manual sheet sending mode is indicated by the lamp 8 on the top of the housing 7.
  • a sheet guide 38 is attached to the lower edge of the lower chute 6.
  • the sheet guide 38 is made of a thin, resilient sheet of film, such as a polyester film, and is attached to the upturn edge 17 with a two-sided adhesive tape, etc.
  • the sheet guide 38 extends well beyond the front (left in Fig. 2) edge of the sheet cassette 3 in order to prevent the sheet sliding on the chutes 5 and 6 from falling in the cassette 3 and to convey the sheet right to the sheet feeding mechanism inside of the copying machine 1.
  • the free end of the sheet guide 38 is made further resilient by forming a plurality of tongues 39a-39h as shown in Fig. 3. If the copying machine 1 is adapted to handle a small sized sheet (such as a post card or name card) , it is preferable to make the central tongues 39d and 39e thicker to assuredly support such a small sheet.
  • a small sized sheet such as a post card or name card
  • the side end pieces 39a and 39h of the tongues are made shorter in order to assure the flipping action of the sheet being sent out from the sheet cassette 3.
  • the process is detailed with reference to Fig. 4.
  • the uppermost sheet of the sheet cassette 3 is to be fed, first the side corners of the sheet is temporarily held by the separators 27a and 27b of the cassette 3 while the sheet itself is being pushed forward.
  • the central part of the front edge of the sheet bends as shown by the solid line 40, which ensures separation of the uppermost sheet from the second sheet on the sheet stack in the cassette 3.
  • the corners finally flee from the separators 27a and 27b and flip upward as shown by the dashed line 41.
  • the flipping action of the corners is important for the front edge of the sheet to successfully escape from the sheet cassette 3.
  • the end tongues 39a and 39h are made short so that it allows the flipping action of the corners of the sheet being drawn out of the cassette 3.
  • the sheet guide 38 is made of a resilient rectangular sheet without the tongues, the corners corresponding to the separators 27a and 27b are to be cut off.
  • the important thing is that the part of the sheet guide corresponding to the separator of the sheet cassette is removed to allow the flipping action of the sheet fleeing the separator.

Landscapes

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

Claims (6)

  1. Dispositif pour acheminer une feuille à une machine de traitement de feuilles comprenant :
       une cassette de feuilles (3) destinée à contenir une pluralité de feuilles empilées (22) ;
       un séparateur de feuille (27a, 27b) prévu à un bord de la cassette de feuilles (3) pour séparer une feuille qui s'extrait de la cassette de feuilles des autres feuilles qui restent dans la cassette de feuilles ; et
       un guide-feuille (38),
    caractérisé en ce que le guide-feuille (38) est placé au-dessus dudit bord de la cassette de feuilles (3), la partie (39a, 39h) qui correspond au séparateur de feuilles (27a, 27b) étant enlevée.
  2. Dispositif d'acheminement de feuilles selon la revendication 1,
       dans lequel une goulotte est prévue pour acheminer une feuille manuellement à la machine de traitement de feuilles, comprenant une plaque supérieure (5) de goulotte et une plaque inférieure (6) de goulotte articulées l'une à l'autre ;
       la cassette de feuilles (3) est prévue sous la goulotte pour acheminer automatiquement une feuille à la machine de traitement de feuilles, le séparateur de feuilles (27a, 27b) est prévu au bord de la cassette de feuilles le plus proche de la machine de traitement de feuilles ; et
       le guide-feuille (38) est fixé à l'extrémité inférieure de la plaque inférieure (6) de goulotte et il s'étend vers la machine de traitement de feuilles au-dessus dudit bord de la cassette de feuilles (3) pour guider une feuille qui est acheminée de la goulotte à la machine de traitement de feuilles.
  3. Dispositif d'acheminement de feuilles selon la revendication 2, dans lequel chaque plaque (5, 6) de goulotte a un axe de rotation (11, 15) différent de celui de l'autre plaque, de sorte que la goulotte d'acheminement manuel des feuilles peut être fixée en deux positions, dont l'une est une position de travail, dans laquelle la plaque supérieure (5) de la goulotte et la plaque inférieure (6) de la goulotte forment un angle sensiblement plat, et où une extrémité de la plaque inférieure (6) de la goulotte est proche de la machine de traitement de feuilles, tandis que l'autre est une position en retrait, dans laquelle la plaque supérieure (5) de la goulotte et la plaque inférieure (6) de la goulotte forment un angle différent et où l'extrémité de la plaque inférieure (6) de la goulotte est située à distance de la machine de traitement de feuilles.
  4. Dispositif d'acheminement de feuilles selon la revendication 1 ou 3, dans lequel une pluralité de languettes (39a-39h) sont prévues à l'extrémité libre du guide-feuille (38) et les languettes des deux côtés sont courtes.
  5. Dispositif d'acheminement de feuilles selon la revendication 4, dans lequel les languettes centrales (39d, 39e) sont plus raides que les autres languettes.
  6. Dispositif d'acheminement de feuilles selon la revendication 5, dans lequel le guide-feuille (38) est fait d'une feuille de matière plastique.
EP90103751A 1990-02-26 1990-02-26 Appareil d'alimentation en feuilles Expired - Lifetime EP0444222B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1990610663 DE69010663T2 (de) 1990-02-26 1990-02-26 Blattzufuhrgerät.
EP90103751A EP0444222B1 (fr) 1990-02-26 1990-02-26 Appareil d'alimentation en feuilles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90103751A EP0444222B1 (fr) 1990-02-26 1990-02-26 Appareil d'alimentation en feuilles

Publications (2)

Publication Number Publication Date
EP0444222A1 EP0444222A1 (fr) 1991-09-04
EP0444222B1 true EP0444222B1 (fr) 1994-07-13

Family

ID=8203697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90103751A Expired - Lifetime EP0444222B1 (fr) 1990-02-26 1990-02-26 Appareil d'alimentation en feuilles

Country Status (2)

Country Link
EP (1) EP0444222B1 (fr)
DE (1) DE69010663T2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8783983B2 (en) * 2012-09-06 2014-07-22 Brady Worldwide, Inc. Printer with pivotable chute assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371409A2 (fr) * 1988-11-30 1990-06-06 Mita Industrial Co. Ltd. Appareil permettant l'activation manuelle de l'envoi d'une feuille

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4492371A (en) * 1980-02-22 1985-01-08 Canon Kabushiki Kaisha Feeding device
JPS5749961A (en) * 1980-09-10 1982-03-24 Sharp Corp Paper feeder of copying machine
JPS5850441U (ja) * 1981-09-30 1983-04-05 キヤノン株式会社 給送装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0371409A2 (fr) * 1988-11-30 1990-06-06 Mita Industrial Co. Ltd. Appareil permettant l'activation manuelle de l'envoi d'une feuille

Also Published As

Publication number Publication date
EP0444222A1 (fr) 1991-09-04
DE69010663T2 (de) 1995-02-09
DE69010663D1 (de) 1994-08-18

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