JPS57131651A - Feeding device of paper - Google Patents

Feeding device of paper

Info

Publication number
JPS57131651A
JPS57131651A JP1505181A JP1505181A JPS57131651A JP S57131651 A JPS57131651 A JP S57131651A JP 1505181 A JP1505181 A JP 1505181A JP 1505181 A JP1505181 A JP 1505181A JP S57131651 A JPS57131651 A JP S57131651A
Authority
JP
Japan
Prior art keywords
paper
roller
lower roller
sheets
upper roller
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.)
Pending
Application number
JP1505181A
Other languages
Japanese (ja)
Inventor
Kenji Tsunoda
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.)
Hokushin Industries Corp
Original Assignee
Hokushin Industries Corp
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 Hokushin Industries Corp filed Critical Hokushin Industries Corp
Priority to JP1505181A priority Critical patent/JPS57131651A/en
Publication of JPS57131651A publication Critical patent/JPS57131651A/en
Pending legal-status Critical Current

Links

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
    • B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
    • B65H3/5253—Driven retainers, i.e. the motion thereof being provided by a dedicated drive the retainers positioned under articles separated from the top of the pile
    • B65H3/5261—Retainers of the roller type, e.g. rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

PURPOSE:To prevent double feeding of paper by a method wherein the friction coefficient between a lower roller and the paper is made smaller than that between an upper roller and the paper, and the lower roller is driven at a low speed to a direction opposite to paper feeding direction. CONSTITUTION:When paper P runs through a spot 2 the paper P is sent out by convex tips of both an upper roller 3 and a lower roller 4 with pressure being applied on both sides of the paper P. On this occasion a friction coefficient between the paper P and an osculating convex surface of the upper roller 3 is made far bigger than that applicable between two sheets of the paper, and the upper roller 3 is made to rotate at a speed and a direction identical with that of the paper P at its running. On the other hand, the friction coefficient between the paper P and the osculating convex surface of the lower roller 4 is made bigger than that applicable between two sheets of the paper and smaller than that applicable between the upper roller 3 and the paper P, and the lower roller 4 is made to drive at a low speed to a direction opposite to a running direction of the paper P as well. When two sheets of the paper are supplied in layers, sending of two sheets of the paper in layers is prevented as successive paper is returned by the lower roller 4 at the spot 2, the upper paper alone is sent out by a bigger friction of the upper roller 3 and the successive paper is sent after the foregoing process.
JP1505181A 1981-02-05 1981-02-05 Feeding device of paper Pending JPS57131651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1505181A JPS57131651A (en) 1981-02-05 1981-02-05 Feeding device of paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1505181A JPS57131651A (en) 1981-02-05 1981-02-05 Feeding device of paper

Publications (1)

Publication Number Publication Date
JPS57131651A true JPS57131651A (en) 1982-08-14

Family

ID=11878027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1505181A Pending JPS57131651A (en) 1981-02-05 1981-02-05 Feeding device of paper

Country Status (1)

Country Link
JP (1) JPS57131651A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982245A (en) * 1982-10-29 1984-05-12 Toshiba Corp Document transport apparatus
JPS5995198U (en) * 1982-12-16 1984-06-28 株式会社岩科製作所 Hydro pulper reject removal equipment
JPH0356338A (en) * 1989-07-26 1991-03-11 Mita Ind Co Ltd Overlapped feeding preventing structure
US5219919A (en) * 1987-10-13 1993-06-15 Chisso Corporation Resin for powder molding and process for producing the same
US5725209A (en) * 1994-09-30 1998-03-10 Canon Kabushiki Kaisha Sheet supply apparatus
EP1199273A3 (en) * 2000-10-16 2004-04-28 Tokai Rubber Industries, Ltd. Retard roller and sheet feeder
WO2010104087A1 (en) 2009-03-09 2010-09-16 シンジーテック株式会社 Paper sheet separation/conveyance roller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894164A (en) * 1972-02-22 1973-12-04
JPS5570645A (en) * 1978-11-21 1980-05-28 Ricoh Co Ltd Sheet separating plate for sheet feeder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4894164A (en) * 1972-02-22 1973-12-04
JPS5570645A (en) * 1978-11-21 1980-05-28 Ricoh Co Ltd Sheet separating plate for sheet feeder

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982245A (en) * 1982-10-29 1984-05-12 Toshiba Corp Document transport apparatus
JPS5995198U (en) * 1982-12-16 1984-06-28 株式会社岩科製作所 Hydro pulper reject removal equipment
JPS6014798Y2 (en) * 1982-12-16 1985-05-10 株式会社岩科製作所 Hydro pulper reject removal equipment
US5219919A (en) * 1987-10-13 1993-06-15 Chisso Corporation Resin for powder molding and process for producing the same
JPH0356338A (en) * 1989-07-26 1991-03-11 Mita Ind Co Ltd Overlapped feeding preventing structure
US5725209A (en) * 1994-09-30 1998-03-10 Canon Kabushiki Kaisha Sheet supply apparatus
EP1199273A3 (en) * 2000-10-16 2004-04-28 Tokai Rubber Industries, Ltd. Retard roller and sheet feeder
WO2010104087A1 (en) 2009-03-09 2010-09-16 シンジーテック株式会社 Paper sheet separation/conveyance roller

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