JPS57189944A - Prevention mechanism of double feeding of paper sheet - Google Patents

Prevention mechanism of double feeding of paper sheet

Info

Publication number
JPS57189944A
JPS57189944A JP7113781A JP7113781A JPS57189944A JP S57189944 A JPS57189944 A JP S57189944A JP 7113781 A JP7113781 A JP 7113781A JP 7113781 A JP7113781 A JP 7113781A JP S57189944 A JPS57189944 A JP S57189944A
Authority
JP
Japan
Prior art keywords
roller
paper sheet
paper
feeding
rollers
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
JP7113781A
Other languages
Japanese (ja)
Inventor
Satoshi Komada
Masahiro Mori
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7113781A priority Critical patent/JPS57189944A/en
Publication of JPS57189944A publication Critical patent/JPS57189944A/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

Landscapes

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

Abstract

PURPOSE:To prevent the double feeding of paper sheets for sure by providing a specific reverse roller in parallel with a regular roller. CONSTITUTION:A regular roller 3-1 of separation rollers 3 is fitted to rotate for feeding and press the uuper side of a paper sheet 11, while a reverse roller 3-2 presses the underside of the paper sheet 11 or 12 to rotate for returning the paper sheet 11, and its peripheral velocity is selected higher than the roller 3-1. The quality of the material of rollers is selected so that the friction factor between the roller 3-2 and the paper sheet 11 and higher than that between paper sheets. The drive torque of the roller 3-2 is set at a fixed level lower than that of the roller 3-1. For example, when paper sheets 11, 12, and 13 are simultaneously supplied to rollers 3 by a let-out roller 2, the paper sheet 13 is returned by the roller 3-2, and the roller 2 stops working by the detection signal of the paper sheet 11 from a returning sensor 5. Then, the paper 12 is returned by the roller 3-2, and only the paper sheet 11 is inserted between feeding rollers 6 for feeding.
JP7113781A 1981-05-12 1981-05-12 Prevention mechanism of double feeding of paper sheet Pending JPS57189944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7113781A JPS57189944A (en) 1981-05-12 1981-05-12 Prevention mechanism of double feeding of paper sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7113781A JPS57189944A (en) 1981-05-12 1981-05-12 Prevention mechanism of double feeding of paper sheet

Publications (1)

Publication Number Publication Date
JPS57189944A true JPS57189944A (en) 1982-11-22

Family

ID=13451887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7113781A Pending JPS57189944A (en) 1981-05-12 1981-05-12 Prevention mechanism of double feeding of paper sheet

Country Status (1)

Country Link
JP (1) JPS57189944A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082542A (en) * 1983-10-08 1985-05-10 Toshiba Corp Paper feeder
US4822023A (en) * 1985-07-29 1989-04-18 Mita Industrial Co., Ltd. Paper-feeding device
EP0357012A2 (en) * 1988-09-01 1990-03-07 Konica Corporation Recording sheet feeding apparatus
EP1360130A2 (en) * 2001-02-07 2003-11-12 Giesecke & Devrient GmbH Device and method for separating sheet-type products

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082542A (en) * 1983-10-08 1985-05-10 Toshiba Corp Paper feeder
US4822023A (en) * 1985-07-29 1989-04-18 Mita Industrial Co., Ltd. Paper-feeding device
EP0357012A2 (en) * 1988-09-01 1990-03-07 Konica Corporation Recording sheet feeding apparatus
EP1360130A2 (en) * 2001-02-07 2003-11-12 Giesecke & Devrient GmbH Device and method for separating sheet-type products

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