EP0434232A2 - Papierzuführanordnung - Google Patents

Papierzuführanordnung Download PDF

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Publication number
EP0434232A2
EP0434232A2 EP90312768A EP90312768A EP0434232A2 EP 0434232 A2 EP0434232 A2 EP 0434232A2 EP 90312768 A EP90312768 A EP 90312768A EP 90312768 A EP90312768 A EP 90312768A EP 0434232 A2 EP0434232 A2 EP 0434232A2
Authority
EP
European Patent Office
Prior art keywords
paper
belt
arrangement
hopper
expanse
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
EP90312768A
Other languages
English (en)
French (fr)
Other versions
EP0434232B1 (de
EP0434232A3 (en
Inventor
Larry A. Jackson
Steve O. Rasmussen
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of EP0434232A2 publication Critical patent/EP0434232A2/de
Publication of EP0434232A3 publication Critical patent/EP0434232A3/en
Application granted granted Critical
Publication of EP0434232B1 publication Critical patent/EP0434232B1/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
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/04—Endless-belt separators
    • B65H3/047—Endless-belt separators separating from the top of a pile
    • 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

  • This invention relates to a paper-feed arrangement for incorporation into the structure of a printer and the like.
  • paper used herein in the specification and claims is intended to mean and embrace any functionally similar sheet-like printing medium.
  • a general and important object of the present invention is to provide a novel paper-feed arrangement which addresses these two issues in ways which offer some significant advances.
  • Fig. 2 is a simplified side section illustrating the details of the proposed paper-feed arrangement.
  • Fig. 3 is a fragmentary, simplified, top plan view further illustrating the arrangement of Fig. 2, and highlighting regions where broad-expanse paper contact occurs during operation of the arrangement.
  • Fig. 4 takes, essentially, the same point of view as Fig. 2, and illustrates how, according to the invention, several papers (three) picked simultaneously are separated in a separation zone located downstream from where initial picking takes place.
  • the separation zone is artificially expanded in order to clarify what happens to paper in the zone.
  • FIG. 1 is included herein to provide an illustration of a typical setting wherein the arrangement proposed by the present invention has particular utility.
  • this perspective view illustrates a conventional ink-jet, computer-driven printer 8 in which, as will be explained, the components of the present invention are incorporated.
  • a paper-feed arrangement incorporated in printer 8, and constructed in accordance with the present invention. Included are a paper-storage hopper structure, or hopper, 12 (Fig. 2) including a discharge zone shown generally at 12 a . Hopper 12 and its discharge zone are, essentially, conventional in construction. Shown stored as a stack in hopper 12 is a collection of sheets of paper 14 ready to be picked and fed for printing in the printer.
  • a ramp structure 16 Located downstream from discharge zone 12 a is a ramp structure 16 on the upper surface of which is suitably attached an expanse of cork 18, which is also referred to herein as frictioning means.
  • the drive roller and idler configured and relatively sized as shown it should be apparent that the overall height of the entire structure including the drive rollers and the hopper structure can be held to a minimum. And this, of course, is considered to be an important advantage. For example, reducing the height referred to allows for the offering of a very compact printer structure wherein two paper storage hoppers for handling different sizes of paper can be employed. Alternatively, other elements may be employed with a single hopper or the printer may simply be shorter.
  • the material chosen for the belts typically natural rubber, and that, typically cork, chosen for the frictioning expanses which underlie the belts where they extend over the ramp structure, have been chosen to provide a special differentiated coefficient of friction situation which further leads to enhanced picking and feeding reliability (one sheet at a time).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP19900312768 1989-12-18 1990-11-23 Papierzuführanordnung Expired - Lifetime EP0434232B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45466189A 1989-12-18 1989-12-18
US454661 1999-12-03

Publications (3)

Publication Number Publication Date
EP0434232A2 true EP0434232A2 (de) 1991-06-26
EP0434232A3 EP0434232A3 (en) 1991-12-11
EP0434232B1 EP0434232B1 (de) 1995-07-26

Family

ID=23805550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900312768 Expired - Lifetime EP0434232B1 (de) 1989-12-18 1990-11-23 Papierzuführanordnung

Country Status (3)

Country Link
EP (1) EP0434232B1 (de)
JP (1) JPH06191660A (de)
DE (1) DE69021184T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994001837A3 (en) * 1992-07-14 1994-06-09 Technitrol Inc Document counting and batching apparatus with counterfeit detection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2112279C1 (ru) * 1993-08-02 1998-05-27 Акционерное общество открытого типа НИИ точной механики Машина для счета банковских билетов

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE979C (de) * 1877-09-17 J. CUMMING in Edinburgh Einrichtungen an Rastrir-Apparaten und dazu gehörigen Papierblatt-Trennungs- und Zuführungs-Apparaten, welche letztere auch für andere Maschinen anwendbar sind
US1976788A (en) * 1933-03-21 1934-10-16 Kurth Herman Machine for delivering sheets from a stack
US4312503A (en) * 1980-05-27 1982-01-26 Xerox Corporation Spring-loaded friction retard separator
US4431175A (en) * 1982-03-08 1984-02-14 Mead Corporation Floating belt friction feeder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994001837A3 (en) * 1992-07-14 1994-06-09 Technitrol Inc Document counting and batching apparatus with counterfeit detection
US5430664A (en) * 1992-07-14 1995-07-04 Technitrol, Inc. Document counting and batching apparatus with counterfeit detection
US5761089A (en) * 1992-07-14 1998-06-02 Mcinerny; George P. Counterfeit document detection apparatus

Also Published As

Publication number Publication date
EP0434232B1 (de) 1995-07-26
JPH06191660A (ja) 1994-07-12
DE69021184D1 (de) 1995-08-31
EP0434232A3 (en) 1991-12-11
DE69021184T2 (de) 1995-12-07

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