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JPS55119643A - Detector for paper sheet double-feed - Google Patents

Detector for paper sheet double-feed

Info

Publication number
JPS55119643A
JPS55119643A JP2705579A JP2705579A JPS55119643A JP S55119643 A JPS55119643 A JP S55119643A JP 2705579 A JP2705579 A JP 2705579A JP 2705579 A JP2705579 A JP 2705579A JP S55119643 A JPS55119643 A JP S55119643A
Authority
JP
Japan
Prior art keywords
sheet
feed
paper sheet
sheets
double feed
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
JP2705579A
Other languages
Japanese (ja)
Inventor
Masao Miyamoto
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2705579A priority Critical patent/JPS55119643A/en
Publication of JPS55119643A publication Critical patent/JPS55119643A/en
Pending legal-status Critical Current

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  • Controlling Sheets Or Webs (AREA)

Abstract

PURPOSE: To detect a double feed (feed of two sheets at a time) of plural kinds of paper sheets by a method wherein an actual measurement value of light transmission amount is compared with a specified value, and a double feed is detected by use of the information obtained through reading of the kind of the paper sheet.
CONSTITUTION: The tip end of a paper sheet or sheets is detected by photoelectric switch light emitters 26 and 27, and shift registers 24 and 25 are set. After the information on the sheet(s) is read by a read mechanism 28, the kind of the sheet(s) is determined, and a specified value (e.g., thickness) of the sheet(s) is checked. A comparator 29 compares the output of the register 25 (measurement value) with the output of the read mechanism 28 (set point), thereby detecting a double feed.
COPYRIGHT: (C)1980,JPO&Japio
JP2705579A 1979-03-08 1979-03-08 Detector for paper sheet double-feed Pending JPS55119643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2705579A JPS55119643A (en) 1979-03-08 1979-03-08 Detector for paper sheet double-feed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2705579A JPS55119643A (en) 1979-03-08 1979-03-08 Detector for paper sheet double-feed

Publications (1)

Publication Number Publication Date
JPS55119643A true JPS55119643A (en) 1980-09-13

Family

ID=12210378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2705579A Pending JPS55119643A (en) 1979-03-08 1979-03-08 Detector for paper sheet double-feed

Country Status (1)

Country Link
JP (1) JPS55119643A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58110642U (en) * 1982-01-18 1983-07-28 株式会社オ−トスタンプ研究所 Multiple feed detection device for sheet material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548140A (en) * 1978-10-03 1980-04-05 Oki Electric Ind Co Ltd Double feed senser of paper

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548140A (en) * 1978-10-03 1980-04-05 Oki Electric Ind Co Ltd Double feed senser of paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58110642U (en) * 1982-01-18 1983-07-28 株式会社オ−トスタンプ研究所 Multiple feed detection device for sheet material

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