JPS57209139A - Paper feeder - Google Patents

Paper feeder

Info

Publication number
JPS57209139A
JPS57209139A JP9173481A JP9173481A JPS57209139A JP S57209139 A JPS57209139 A JP S57209139A JP 9173481 A JP9173481 A JP 9173481A JP 9173481 A JP9173481 A JP 9173481A JP S57209139 A JPS57209139 A JP S57209139A
Authority
JP
Japan
Prior art keywords
sheet
brake
roller
tangent
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.)
Pending
Application number
JP9173481A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Sato
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP9173481A priority Critical patent/JPS57209139A/en
Publication of JPS57209139A publication Critical patent/JPS57209139A/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
    • B65H3/5207—Non-driven retainers, e.g. movable retainers being moved by the motion of the article
    • B65H3/523—Non-driven retainers, e.g. movable retainers being moved by the motion of the article the retainers positioned over articles separated from the bottom of the pile
    • B65H3/5238—Retainers of the pad-type, e.g. friction pads

Landscapes

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

Abstract

PURPOSE:To improve passing performance of papers and prevent a noise of separation of sheets in a friction type paper feeder, by providing the rocking center of a brake member on a tangent of a separator roller and the brake member, and positioning the peripheral surface of a guide roller between a paper feed part and read part. CONSTITUTION:The friction coefficient between a sheet 34 and a separator roller 31 is larger than the friction coefficient between the sheet 34 and a brake plate 32, so only a sheet of the lowermost sheet is separated. At this time, the rocking center 38 of the brake plat 32 is located on a tangent L of the separator roller 31 and the brake plate 32, and rotary moment is not generated to the brake plate 32, so the brake plate 32 is not rocked. Further a guide roller 39 is arranged before a read roller 40 and located with the peripheral surface to a lower position than the tangent L, then the sheet 34 is pressed downward to prevent a retainer plate 35 from being lifted by a moving sheet. In this way, rocking motion of the brake member and retainer plate in case of a separation feed can be prevented to perform stable separation and improve passing performance of paper.
JP9173481A 1981-06-15 1981-06-15 Paper feeder Pending JPS57209139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9173481A JPS57209139A (en) 1981-06-15 1981-06-15 Paper feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9173481A JPS57209139A (en) 1981-06-15 1981-06-15 Paper feeder

Publications (1)

Publication Number Publication Date
JPS57209139A true JPS57209139A (en) 1982-12-22

Family

ID=14034741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9173481A Pending JPS57209139A (en) 1981-06-15 1981-06-15 Paper feeder

Country Status (1)

Country Link
JP (1) JPS57209139A (en)

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