EP0112276A2 - Dispositif pour amener des feuilles individuelles d'une pile de feuilles - Google Patents
Dispositif pour amener des feuilles individuelles d'une pile de feuilles Download PDFInfo
- Publication number
- EP0112276A2 EP0112276A2 EP83730101A EP83730101A EP0112276A2 EP 0112276 A2 EP0112276 A2 EP 0112276A2 EP 83730101 A EP83730101 A EP 83730101A EP 83730101 A EP83730101 A EP 83730101A EP 0112276 A2 EP0112276 A2 EP 0112276A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- separating
- rollers
- sheet
- assigned
- guide
- 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
Links
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 3
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000032258 transport Effects 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002023 somite Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
- B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section
Definitions
- the invention relates to a device for feeding individual sheets from a stack of sheets into the guide channel assigned to a platen roller by means of drivable transport rollers, a stacking base movable against the transport rollers and stops for the sheet stack and blocking fingers separating the individual sheets.
- Devices of this type for separating individual sheets from a stack of sheets are used, for example, in automatic typewriters, printers, in particular in matrix printers.
- the known solution also uses a movable stacking base which is continuously pressed against the rollers separating the individual sheets by means of spring force.
- the stackable base which can be moved by spring force, pushes up more than just one sheet, so that the separating roller also transports two sheets which are pushed against the locking finger.
- the locking finger also serves only as a stop and not for the actual separation of individual sheets in the area of the stacking base. The present invention therefore assumes that both side stops for the sheet stack and separating fingers separating the individual sheets are assigned to the stack base at the level of the stack base.
- the invention is therefore based on the object of developing the device described at the outset with a view to improved disengagement of a single sheet from the region of the laterally arranged locking fingers.
- the stacking base is formed from one or more guide strips arranged symmetrically to the center of the single sheet, each of which is assigned a drivable separating roller opposite in the area of a front stop, and also that the locking fingers of the separating rollers in the lateral edge areas of the sheet stack are assigned that the separating rollers are arranged higher than the locking fingers and that the separating rollers at the beginning of the separating process are at least rotatable against the feed direction of a single sheet by the path of the overlap by the locking fingers.
- the guide strips, laterally parallel guide walls and spacer rods are combined to form a rocker which is pivotally mounted in the side parts of the device frame by means of an axis of rotation.
- the design of the seesaw and the swivel mounting enable the entire stack to be swiveled in the direction of the singling rolls.
- rocker is assigned a control bridge, which consists of one or more spring-loaded levers pivoted by means of an axle in the side parts of the device frame. Regardless of the height of the stack of sheets, the rocker is therefore always pivoted in the direction of the separating rollers, the contact pressure being kept almost constant.
- rocker serves as a guide for a guide wall that is adjustable to paper width.
- the drive transmission for the separating rollers is carried out according to further features of the invention in that the separating rollers are arranged on an axis that can be driven by the platen roller and that the drive movement can be transmitted in the two directions of rotation by means of an electromagnetic clutch or by means of a drive train.
- a front stop and the locking fingers are arranged on superimposed axes.
- the axes 3, 4, 5 are rotatably mounted in the side parts 1 and 2.
- a rocker 31 which consists of the guide walls 6 and 7 'and the spacer rods 8 which are firmly pressed or loosely inserted therein.
- Another guide wall 9 can be on the axis 3 or the spacer bar 8 of the desired paper width accordingly laterally shifted and locked on the axis 3 by means of a locking lever (not described in more detail).
- stop angles 10 and 11 are provided in the rear position, which can be shifted into locking positions or steplessly and are adjusted according to the respective length of the single sheet or a single form.
- the separating rollers 17 and further drive parts to be described are located on the axis 4.
- a control bridge 32 is formed, which is formed from the outer levers 12, which are fixedly connected to the axis 5, and an axis 13.
- the axis 13 is in engagement with the guide walls 6, 7 and 9 of the rocker 31 via the elongated holes 6a.
- the control bridge 32 is pivoted clockwise by two tension springs 14 and takes the rocker 31 supported thereon by the axis 13.
- the stack of forms 16 supported on the guide strips 15 comes to rest against the separating rollers 17 located on the axis 4.
- the contact pressure remains constant, even if the height of the stack of forms 16 changes.
- the one limitation for the stack of forms 16 is formed by two front stops 18 which are mounted on the axis 19.
- the device is u. a. driven by the clutch wheel 20, which is in engagement via a gear train 21 with a gear 23 which is fixedly connected to the platen roller 22.
- the clutch wheel 20 is part of the electromagnetic clutch 24 which, when energized, transmits the rotary movement emanating from the platen roller 22 to the axis 4 in the same direction of rotation.
- the axis 4 with the separating rollers 17 are also rotated clockwise, ie in the feed direction for the Linzel sheets, via the described drive elements.
- the separating rollers 17 push this Sheet into the area of effect of the platen roller 22, then the electromagnetic clutch 24 switches off.
- the top form which bends back at the corners, is transported over the blocking fingers 25 and fed to the friction rollers 27 through a guide plate 26.
- a sensor 29 is arranged, which senses the front edge of the single sheet and thus initiates a preprogrammed reversing movement which conveys the single sheet into the desired printing position.
- the printed single sheet or form is ejected into a fold-away storage compartment 30, the advantage of which is that when the stack of forms 16 is inserted, one has full view of the stack of forms.
- multilayer form sets can also be fed.
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3247341 | 1982-12-17 | ||
DE19823247341 DE3247341A1 (de) | 1982-12-17 | 1982-12-17 | Vorrichtung fuer die zufuehrung einzelner blaetter von einem blattstapel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0112276A2 true EP0112276A2 (fr) | 1984-06-27 |
EP0112276A3 EP0112276A3 (en) | 1985-07-17 |
EP0112276B1 EP0112276B1 (fr) | 1987-11-25 |
Family
ID=6181309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83730101A Expired EP0112276B1 (fr) | 1982-12-17 | 1983-10-24 | Dispositif pour amener des feuilles individuelles d'une pile de feuilles |
Country Status (3)
Country | Link |
---|---|
US (1) | US4613124A (fr) |
EP (1) | EP0112276B1 (fr) |
DE (2) | DE3247341A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0167988A2 (fr) * | 1984-07-09 | 1986-01-15 | Siemens Aktiengesellschaft | Cassette de stockage de papier pour mécanismes d'impression munie d'éléments de distance disposés sur la surface de dépôt |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4795145A (en) * | 1986-09-22 | 1989-01-03 | Centronics Data Computer Corporation | Cut sheet paper mechanism |
DE3844325A1 (de) * | 1988-12-27 | 1990-06-28 | Mannesmann Ag | Vorrichtung fuer die zufuehrung von einzelblaettern in bueromaschinen, insbesondere in matrixdruckern |
JPH06164854A (ja) * | 1992-11-19 | 1994-06-10 | Canon Inc | 複写装置及びその方法 |
US6357740B1 (en) | 1998-11-30 | 2002-03-19 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus |
JP2008280162A (ja) * | 2007-05-14 | 2008-11-20 | Seiko Epson Corp | 給紙装置 |
JP6115431B2 (ja) * | 2013-09-27 | 2017-04-19 | ブラザー工業株式会社 | シート搬送装置、及び画像読取装置 |
JP2023122273A (ja) * | 2022-02-22 | 2023-09-01 | 株式会社リコー | シート給送装置及びラミネート処理装置及び画像形成装置及び画像形成システム |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2711173A1 (de) * | 1976-04-05 | 1977-10-13 | Kurt Ruenzi | Einrichtung zum selbsttaetigen beschicken einer bueromaschine mit einzelblaettern |
US4089402A (en) * | 1976-07-01 | 1978-05-16 | Hy Grip Products Co. | Sheet feeding mechanism for an automatic typewriter |
DE2854695A1 (de) * | 1978-01-23 | 1979-07-26 | Rutishauser Data Ag | Transportvorrichtung fuer blattfoermige aufzeichnungstraeger |
DE2928353A1 (de) * | 1979-05-29 | 1980-12-04 | Albert Rutishauser | Transportvorrichtung fuer blattfoermige aufzeichnungstraeger |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3599972A (en) * | 1969-07-23 | 1971-08-17 | Pitney Bowes Inc | Paper tray for photocopy machine |
US4023792A (en) * | 1971-12-08 | 1977-05-17 | Xerox Corporation | Sheet feeding apparatus |
US3857558A (en) * | 1973-06-21 | 1974-12-31 | Xerox Corp | Paper cassette design with irregular bottom |
US3883133A (en) * | 1973-09-17 | 1975-05-13 | Xerox Corp | Movable pack advancer |
US3866901A (en) * | 1973-10-01 | 1975-02-18 | Xerox Corp | Reverse buckle feeder |
DE2735223C2 (de) * | 1977-08-04 | 1981-09-17 | Siemens AG, 1000 Berlin und 8000 München | Vorrichtung zum Bewegen blattförmiger Aufzeichnungsträger von bzw. zu Blattstapeln |
DE2816448C3 (de) * | 1978-04-15 | 1981-01-08 | Helmut 7210 Rottweil Steinhilber | Vorrichtung zum Zuführen von Papierblättern für eine schreibende Büromaschine |
JPS55160613A (en) * | 1979-06-01 | 1980-12-13 | Nec Corp | Paper feeding mechanism |
CH639345A5 (de) * | 1979-09-07 | 1983-11-15 | Kurt Ruenzi | Zufuhrvorrichtung fuer papierblaetter fuer ein kopiergeraet. |
US4492371A (en) * | 1980-02-22 | 1985-01-08 | Canon Kabushiki Kaisha | Feeding device |
-
1982
- 1982-12-17 DE DE19823247341 patent/DE3247341A1/de active Granted
-
1983
- 1983-10-24 EP EP83730101A patent/EP0112276B1/fr not_active Expired
- 1983-10-24 DE DE8383730101T patent/DE3374674D1/de not_active Expired
- 1983-12-14 US US06/561,360 patent/US4613124A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2711173A1 (de) * | 1976-04-05 | 1977-10-13 | Kurt Ruenzi | Einrichtung zum selbsttaetigen beschicken einer bueromaschine mit einzelblaettern |
US4089402A (en) * | 1976-07-01 | 1978-05-16 | Hy Grip Products Co. | Sheet feeding mechanism for an automatic typewriter |
DE2854695A1 (de) * | 1978-01-23 | 1979-07-26 | Rutishauser Data Ag | Transportvorrichtung fuer blattfoermige aufzeichnungstraeger |
DE2928353A1 (de) * | 1979-05-29 | 1980-12-04 | Albert Rutishauser | Transportvorrichtung fuer blattfoermige aufzeichnungstraeger |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0167988A2 (fr) * | 1984-07-09 | 1986-01-15 | Siemens Aktiengesellschaft | Cassette de stockage de papier pour mécanismes d'impression munie d'éléments de distance disposés sur la surface de dépôt |
EP0167988A3 (en) * | 1984-07-09 | 1986-07-16 | Siemens Aktiengesellschaft | Paper supply holder for printing mechanisms having distance elements arranged on the depositing surface |
Also Published As
Publication number | Publication date |
---|---|
DE3247341A1 (de) | 1984-06-20 |
DE3374674D1 (en) | 1988-01-07 |
EP0112276B1 (fr) | 1987-11-25 |
EP0112276A3 (en) | 1985-07-17 |
US4613124A (en) | 1986-09-23 |
DE3247341C2 (fr) | 1988-08-25 |
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